handler/meter: add HTTPHandlerFunc method

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
Apply Code Coverage Badge
2025-08-04 21:49:04 +03:00 · 2025-05-19 08:54:04 +00:00 · 2025-05-19 11:49:35 +03:00 · 2025-05-13 22:30:35 +00:00 · 2025-05-14 01:26:24 +03:00 · 2025-05-05 18:01:58 +03:00
32 changed files with 750 additions and 702 deletions
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@@ -1,6 +1,6 @@
 ---
 name: Bug report
-about: For reporting bugs in go-micro
+about: For reporting bugs in micro
 title: "[BUG]"
 labels: ''
 assignees: ''
@@ -16,9 +16,3 @@ assignees: ''
 **How to reproduce the bug:**

 If possible, please include a minimal code snippet here.
-
-**Environment:**
-Go Version: please paste `go version` output here
-```
-please paste `go env` output here
-```
--- a/.github/ISSUE_TEMPLATE/feature-request---enhancement.md
+++ b/.github/ISSUE_TEMPLATE/feature-request---enhancement.md
@@ -1,6 +1,6 @@
 ---
 name: Feature request / Enhancement
-about: If you have a need not served by go-micro
+about: If you have a need not served by micro
 title: "[FEATURE]"
 labels: ''
 assignees: ''
@@ -14,4 +14,4 @@ A clear and concise description of what the problem is. Ex. I'm always frustrate
 A clear and concise description of what you want to happen.

 **Additional context**
-Add any other context or screenshots about the feature request here.
+Add any other context or screenshots about the feature request here.
--- a/.github/ISSUE_TEMPLATE/question.md
+++ b/.github/ISSUE_TEMPLATE/question.md
@@ -1,14 +1,8 @@
 ---
 name: Question
-about: Ask a question about go-micro
+about: Ask a question about micro
 title: ''
 labels: ''
 assignees: ''

---
-
-Before asking, please check if your question has already been answered: 
-
-1. Check the documentation - https://micro.mu/docs/
-2. Check the examples and plugins - https://github.com/micro/examples & https://github.com/micro/go-plugins
-3. Search existing issues
+---
--- a/.github/autoapprove.yml
+++ b/.github/autoapprove.yml
@@ -0,0 +1,28 @@
+name: "autoapprove"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+  workflow_run:
+    workflows: ["prbuild"]
+    types:
+      - completed
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  autoapprove:
+    runs-on: ubuntu-latest
+    steps:
+      - name: approve
+        run: [ "curl -o tea https://dl.gitea.com/tea/main/tea-main-linux-amd64",
+               "chmod +x ./tea",
+               "./tea login add --name unistack --token ${{ secrets.GITHUB_TOKEN }} --url https://git.unistack.org",
+               "./tea pr --repo ${{ github.event.repository.name }}"
+        ]
+        if: github.actor == 'vtolstov'
+        id: approve
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/job_sync.yml
+++ b/.github/workflows/job_sync.yml
@@ -0,0 +1,94 @@
+name: sync
+
+on:
+  schedule:
+    - cron: '*/5 * * * *'
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  sync:
+    if: github.server_url != 'https://github.com'
+    runs-on: ubuntu-latest
+    steps:
+    - name: init
+      run: |
+        git config --global user.email "vtolstov <vtolstov@users.noreply.github.com>"
+        git config --global user.name "github-actions[bot]"
+        echo "machine git.unistack.org login vtolstov password ${{ secrets.TOKEN_GITEA }}" >> /root/.netrc
+        echo "machine github.com login vtolstov password ${{ secrets.TOKEN_GITHUB }}" >> /root/.netrc
+
+    - name: check master
+      id: check_master
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync master
+      if: steps.check_master.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch master --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track master upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream master
+        git push upstream master --progress
+        git push origin master --progress
+        cd ../
+        rm -rf repo
+
+    - name: check v3
+      id: check_v3
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/v3 | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/v3 | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync v3
+      if: steps.check_v3.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch v3 --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track v3 upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream v3
+        git push upstream v3 --progress
+        git push origin v3 --progress
+        cd ../
+        rm -rf repo
+
+    - name: check v4
+      id: check_v4
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/v4 | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/v4 | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync v4
+      if: steps.check_v4.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch v4 --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track v4 upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream v4
+        git push upstream v4 --progress
+        git push origin v4 --progress
+        cd ../
+        rm -rf repo
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # HTTP Server
-![Coverage](https://img.shields.io/badge/Coverage-2.5%25-red)
+![Coverage](https://img.shields.io/badge/Coverage-5.1%25-red)

 The HTTP Server is a go-micro.Server. It's a partial implementation which strips out codecs, transports, etc but enables you 
 to create a HTTP Server that could potentially be used for REST based API services.
--- a/go.mod
+++ b/go.mod
@@ -1,26 +1,28 @@
-module go.unistack.org/micro-server-http/v3
+module go.unistack.org/micro-server-http/v4

-go 1.22.2
-
-toolchain go1.24.2
+go 1.24.0

 require (
-	go.unistack.org/micro-client-http/v3 v3.9.15
-	go.unistack.org/micro-codec-yaml/v3 v3.10.3
-	go.unistack.org/micro-proto/v3 v3.4.1
-	go.unistack.org/micro/v3 v3.11.41
-	golang.org/x/net v0.33.0
+	github.com/stretchr/testify v1.10.0
+	go.unistack.org/micro-client-http/v4 v4.1.0
+	go.unistack.org/micro-codec-yaml/v4 v4.1.0
+	go.unistack.org/micro-proto/v4 v4.1.0
+	go.unistack.org/micro/v4 v4.1.8
+	golang.org/x/net v0.39.0
 )

 require (
 	github.com/ash3in/uuidv8 v1.2.0 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/google/gnostic v0.7.0 // indirect
 	github.com/google/gnostic-models v0.6.9 // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/matoous/go-nanoid v1.5.1 // indirect
-	golang.org/x/sys v0.28.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20241223144023-3abc09e42ca8 // indirect
-	google.golang.org/grpc v1.69.2 // indirect
-	google.golang.org/protobuf v1.36.1 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/spf13/cast v1.7.1 // indirect
+	golang.org/x/sys v0.32.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20250428153025-10db94c68c34 // indirect
+	google.golang.org/grpc v1.72.0 // indirect
+	google.golang.org/protobuf v1.36.6 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -639,6 +639,8 @@ github.com/cncf/xds/go v0.0.0-20230105202645-06c439db220b/go.mod h1:eXthEFrGJvWH
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE=
 github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@@ -657,6 +659,8 @@ github.com/envoyproxy/protoc-gen-validate v0.9.1/go.mod h1:OKNgG7TCp5pF4d6XftA0+
 github.com/flowstack/go-jsonschema v0.1.1/go.mod h1:yL7fNggx1o8rm9RlgXv7hTBWxdBM0rVwpMwimd3F3N0=
 github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
 github.com/fogleman/gg v1.3.0/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
+github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
+github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-fonts/dejavu v0.1.0/go.mod h1:4Wt4I4OU2Nq9asgDCteaAaWZOV24E+0/Pwo0gppep4g=
 github.com/go-fonts/latin-modern v0.2.0/go.mod h1:rQVLdDMK+mK1xscDwsqM5J8U2jrRa3T0ecnM9pNujks=
@@ -822,6 +826,8 @@ github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/pkg/sftp v1.10.1/go.mod h1:lYOWFsE0bwd1+KfKJaKeuokY15vzFx25BLbzYYoAxZI=
 github.com/pkg/sftp v1.13.1/go.mod h1:3HaPG6Dq1ILlpPZRO0HVMrsydcdLt6HRDccSgb87qRg=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
+github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/prometheus/client_model v0.2.0/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
@@ -837,6 +843,8 @@ github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasO
 github.com/spf13/afero v1.3.3/go.mod h1:5KUK8ByomD5Ti5Artl0RtHeI5pTF7MIDuXL3yY520V4=
 github.com/spf13/afero v1.6.0/go.mod h1:Ai8FlHk4v/PARR026UzYexafAt9roJ7LcLMAmO6Z93I=
 github.com/spf13/afero v1.9.2/go.mod h1:iUV7ddyEEZPO5gA3zD4fJt6iStLlL+Lg4m2cihcDf8Y=
+github.com/spf13/cast v1.7.1 h1:cuNEagBQEHWN1FnbGEjCXL2szYEXqfJPbP2HNUaca9Y=
+github.com/spf13/cast v1.7.1/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo=
 github.com/stoewer/go-strcase v1.2.0/go.mod h1:IBiWB2sKIp3wVVQ3Y035++gc+knqhUQag1KpM8ahLw8=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
@@ -850,6 +858,8 @@ github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f/go.mod h1:N2zxlSyiKSe5eX1tZViRH5QA0qijqEDrYZiPEAiq3wU=
 github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415/go.mod h1:GwrjFmJcFw6At/Gs6z4yjiIwzuJ1/+UwLxMQDVQXShQ=
 github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQluxsYJ78Id3Y=
@@ -872,14 +882,14 @@ go.opencensus.io v0.23.0/go.mod h1:XItmlyltB5F7CS4xOC1DcqMoFqwtC6OG2xF7mCv7P7E=
 go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.opentelemetry.io/proto/otlp v0.15.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=
-go.unistack.org/micro-client-http/v3 v3.9.15 h1:d2t/8P0FrvZwIpdqwHwn9+7rP5zcDa4DKXgBfTCZTeo=
-go.unistack.org/micro-client-http/v3 v3.9.15/go.mod h1:KS6qxpxGDQmcszBaJpidc1KOr528QflEKoGopl0qYJ8=
-go.unistack.org/micro-codec-yaml/v3 v3.10.3 h1:H0jM4wCSReHzEc1hnKYgXjzg171+tUE6IHxdxvgq/cQ=
-go.unistack.org/micro-codec-yaml/v3 v3.10.3/go.mod h1:pruYGvCULoHa6Tfah1UnTrwCzQhy0KT6D4UXEMgf+tk=
-go.unistack.org/micro-proto/v3 v3.4.1 h1:UTjLSRz2YZuaHk9iSlVqqsA50JQNAEK2ZFboGqtEa9Q=
-go.unistack.org/micro-proto/v3 v3.4.1/go.mod h1:okx/cnOhzuCX0ggl/vToatbCupi0O44diiiLLsZ93Zo=
-go.unistack.org/micro/v3 v3.11.41 h1:dP4sBLIZpMo+MWGe5bbESewK8wBzYm4Yik/67x4dEtQ=
-go.unistack.org/micro/v3 v3.11.41/go.mod h1:POGU5hstnAT9LH70m8FalyQSNi2GfIew71K75JenIZk=
+go.unistack.org/micro-client-http/v4 v4.1.0 h1:u1YwMmhPaQn0T0m6OSC6MBijHshDpwiNWMNib7KmSj8=
+go.unistack.org/micro-client-http/v4 v4.1.0/go.mod h1:RtddTKxsN5Zc6bzEON6CqpDL/Svfo13QoGXbIO1x3Os=
+go.unistack.org/micro-codec-yaml/v4 v4.1.0 h1:9utR2ka47CDEShbuF7QBAfv0lAFp06pXh77e2Byrt2s=
+go.unistack.org/micro-codec-yaml/v4 v4.1.0/go.mod h1:aMd5xKrJiUMvh6PNdYbO3G59JZfjSHRXdmNA4RCr8Mw=
+go.unistack.org/micro-proto/v4 v4.1.0 h1:qPwL2n/oqh9RE3RTTDgt28XK3QzV597VugQPaw9lKUk=
+go.unistack.org/micro-proto/v4 v4.1.0/go.mod h1:ArmK7o+uFvxSY3dbJhKBBX4Pm1rhWdLEFf3LxBrMtec=
+go.unistack.org/micro/v4 v4.1.8 h1:bbqnQ7nzTYNIYt4HhRgmh/++qzwGJvlNbrTOoXzkQiU=
+go.unistack.org/micro/v4 v4.1.8/go.mod h1:b4dr7RFlbpSfSsKCva9UuX4zLtkYQteEK+Uuac39qJE=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
@@ -1001,8 +1011,8 @@ golang.org/x/net v0.5.0/go.mod h1:DivGGAXEgPSlEBzxGzZI+ZLohi+xUj054jfeKui00ws=
 golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
-golang.org/x/net v0.33.0 h1:74SYHlV8BIgHIFC/LrYkOGIwL19eTYXQ5wc6TBuO36I=
-golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
+golang.org/x/net v0.39.0 h1:ZCu7HMWDxpXpaiKdhzIfaltL9Lp31x/3fCP11bc6/fY=
+golang.org/x/net v0.39.0/go.mod h1:X7NRbYVEA+ewNkCNyJ513WmMdQ3BineSwVtN2zD/d+E=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -1122,8 +1132,8 @@ golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
-golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.32.0 h1:s77OFDvIQeibCmezSnk/q6iAfkdiQaJi4VzroCFrN20=
+golang.org/x/sys v0.32.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
@@ -1145,8 +1155,8 @@ golang.org/x/text v0.5.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.6.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
-golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
+golang.org/x/text v0.24.0 h1:dd5Bzh4yt5KYA8f9CJHCP4FB4D51c2c6JvN37xJJkJ0=
+golang.org/x/text v0.24.0/go.mod h1:L8rBsPeo2pSS+xqN0d5u2ikmjtmoJbDBT1b7nHvFCdU=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -1430,8 +1440,8 @@ google.golang.org/genproto/googleapis/api v0.0.0-20230525234020-1aefcd67740a/go.
 google.golang.org/genproto/googleapis/api v0.0.0-20230525234035-dd9d682886f9/go.mod h1:vHYtlOoi6TsQ3Uk2yxR7NI5z8uoV+3pZtR4jmHIkRig=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234015-3fc162c6f38a/go.mod h1:xURIpW9ES5+/GZhnV6beoEtxQrnkRGIfP5VQG2tCBLc=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20230525234030-28d5490b6b19/go.mod h1:66JfowdXAEgad5O9NnYcsNPLCPZJD++2L9X0PCMODrA=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20241223144023-3abc09e42ca8 h1:TqExAhdPaB60Ux47Cn0oLV07rGnxZzIsaRhQaqS666A=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20241223144023-3abc09e42ca8/go.mod h1:lcTa1sDdWEIHMWlITnIczmw5w60CF9ffkb8Z+DVmmjA=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250428153025-10db94c68c34 h1:h6p3mQqrmT1XkHVTfzLdNz1u7IhINeZkz67/xTbOuWs=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250428153025-10db94c68c34/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
@@ -1471,8 +1481,8 @@ google.golang.org/grpc v1.50.1/go.mod h1:ZgQEeidpAuNRZ8iRrlBKXZQP1ghovWIVhdJRyCD
 google.golang.org/grpc v1.51.0/go.mod h1:wgNDFcnuBGmxLKI/qn4T+m5BtEBYXJPvibbUPsAIPww=
 google.golang.org/grpc v1.53.0/go.mod h1:OnIrk0ipVdj4N5d9IUoFUx72/VlD7+jUsHwZgwSMQpw=
 google.golang.org/grpc v1.54.0/go.mod h1:PUSEXI6iWghWaB6lXM4knEgpJNu2qUcKfDtNci3EC2g=
-google.golang.org/grpc v1.69.2 h1:U3S9QEtbXC0bYNvRtcoklF3xGtLViumSYxWykJS+7AU=
-google.golang.org/grpc v1.69.2/go.mod h1:vyjdE6jLBI76dgpDojsFGNaHlxdjXN9ghpnd2o7JGZ4=
+google.golang.org/grpc v1.72.0 h1:S7UkcVa60b5AAQTaO6ZKamFp1zMZSU0fGDK2WZLbBnM=
+google.golang.org/grpc v1.72.0/go.mod h1:wH5Aktxcg25y1I3w7H69nHfXdOG3UiadoBtjh3izSDM=
 google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.1.0/go.mod h1:6Kw0yEErY5E/yWrBtf03jp27GLLJujG4z/JK95pnjjw=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
@@ -1491,8 +1501,8 @@ google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqw
 google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.29.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
-google.golang.org/protobuf v1.36.1 h1:yBPeRvTftaleIgM3PZ/WBIZ7XM/eEYAaEyCwvyjq/gk=
-google.golang.org/protobuf v1.36.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/protobuf v1.36.6 h1:z1NpPI8ku2WgiWnf+t9wTPsn6eP1L7ksHUlkfLvd9xY=
+google.golang.org/protobuf v1.36.6/go.mod h1:jduwjTPXsFjZGTmRluh+L6NjiWu7pchiJ2/5YcXBHnY=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
--- a/handler.go
+++ b/handler.go
@@ -9,19 +9,18 @@ import (
 	"slices"
 	"strconv"
 	"strings"
-	"sync"
 	"time"

-	"go.unistack.org/micro/v3/errors"
-	"go.unistack.org/micro/v3/logger"
-	"go.unistack.org/micro/v3/metadata"
-	"go.unistack.org/micro/v3/meter"
-	"go.unistack.org/micro/v3/options"
-	"go.unistack.org/micro/v3/semconv"
-	"go.unistack.org/micro/v3/server"
-	"go.unistack.org/micro/v3/tracer"
-	rhttp "go.unistack.org/micro/v3/util/http"
-	rflutil "go.unistack.org/micro/v3/util/reflect"
+	"go.unistack.org/micro/v4/errors"
+	"go.unistack.org/micro/v4/logger"
+	"go.unistack.org/micro/v4/metadata"
+	"go.unistack.org/micro/v4/meter"
+	"go.unistack.org/micro/v4/options"
+	"go.unistack.org/micro/v4/semconv"
+	"go.unistack.org/micro/v4/server"
+	"go.unistack.org/micro/v4/tracer"
+	rhttp "go.unistack.org/micro/v4/util/http"
+	rflutil "go.unistack.org/micro/v4/util/reflect"
 )

 var (
@@ -46,7 +45,6 @@ type httpHandler struct {
 	handlers *rhttp.Trie
 	name     string
 	sopts    server.Options
-	sync.RWMutex
 }

 func (h *httpHandler) Name() string {
@@ -103,27 +101,29 @@ func (h *Server) HTTPHandlerFunc(handler interface{}) (http.HandlerFunc, error)
 			ct = htype
 		}

-		ctx := context.WithValue(r.Context(), rspCodeKey{}, &rspCodeVal{})
-		ctx = context.WithValue(ctx, rspHeaderKey{}, &rspHeaderVal{})
+		ctx := context.WithValue(r.Context(), rspStatusCodeKey{}, &rspStatusCodeVal{})
+		ctx = context.WithValue(ctx, rspMetadataKey{}, &rspMetadataVal{m: metadata.New(0)})
+
 		md, ok := metadata.FromIncomingContext(ctx)
 		if !ok {
 			md = metadata.New(len(r.Header) + 8)
 		}
 		for k, v := range r.Header {
-			md[k] = strings.Join(v, ", ")
+			md[k] = append(md[k], v...)
 		}
-		md["RemoteAddr"] = r.RemoteAddr
-		md["Method"] = r.Method
-		md["URL"] = r.URL.String()
-		md["Proto"] = r.Proto
-		md["Content-Length"] = fmt.Sprintf("%d", r.ContentLength)
-		md["Transfer-Encoding"] = strings.Join(r.TransferEncoding, ",")
-		md["Host"] = r.Host
-		md["RequestURI"] = r.RequestURI
+
+		md["RemoteAddr"] = append(md["RemoteAddr"], r.RemoteAddr)
+		md["Method"] = append(md["Method"], r.Method)
+		md["URL"] = append(md["URL"], r.URL.String())
+		md["Proto"] = append(md["Proto"], r.Proto)
+		md["Content-Length"] = append(md["Content-Length"], fmt.Sprintf("%d", r.ContentLength))
+		md["Transfer-Encoding"] = append(md["Transfer-Encoding"], r.TransferEncoding...)
+		md["Host"] = append(md["Host"], r.Host)
+		md["RequestURI"] = append(md["RequestURI"], r.RequestURI)
 		if r.TLS != nil {
-			md["TLS"] = "true"
-			md["TLS-ALPN"] = r.TLS.NegotiatedProtocol
-			md["TLS-ServerName"] = r.TLS.ServerName
+			md["TLS"] = append(md["TLS"], "true")
+			md["TLS-ALPN"] = append(md["TLS-ALPN"], r.TLS.NegotiatedProtocol)
+			md["TLS-ServerName"] = append(md["TLS-ServerName"], r.TLS.ServerName)
 		}

 		ctx = metadata.NewIncomingContext(ctx, md)
@@ -159,8 +159,7 @@ func (h *Server) HTTPHandlerFunc(handler interface{}) (http.HandlerFunc, error)
 		}

 		if !match && h.registerRPC {
-			microMethod, mok := md.Get(metadata.HeaderEndpoint)
-			if mok {
+			for _, microMethod := range md.Get(metadata.HeaderEndpoint) {
 				serviceMethod := strings.Split(microMethod, ".")
 				if len(serviceMethod) == 2 {
 					if shdlr, ok := h.handlers[serviceMethod[0]]; ok {
@@ -258,17 +257,6 @@ func (h *Server) HTTPHandlerFunc(handler interface{}) (http.HandlerFunc, error)
 				err = rerr.(error)
 			}

-			md, ok := metadata.FromOutgoingContext(ctx)
-			if !ok {
-				md = metadata.New(0)
-			}
-			if nmd, ok := metadata.FromOutgoingContext(fctx); ok {
-				for k, v := range nmd {
-					md.Set(k, v)
-				}
-			}
-			metadata.SetOutgoingContext(ctx, md)
-
 			return err
 		}

@@ -292,17 +280,8 @@ func (h *Server) HTTPHandlerFunc(handler interface{}) (http.HandlerFunc, error)
 		appErr := fn(ctx, hr, replyv.Interface())

 		w.Header().Set(metadata.HeaderContentType, ct)
-		if md, ok := metadata.FromOutgoingContext(ctx); ok {
-			for k, v := range md {
-				w.Header().Set(k, v)
-			}
-		}
-		if md := getRspHeader(ctx); md != nil {
-			for k, v := range md {
-				for _, vv := range v {
-					w.Header().Add(k, vv)
-				}
-			}
+		for k, v := range getResponseMetadata(ctx) {
+			w.Header()[k] = v
 		}
 		if nct := w.Header().Get(metadata.HeaderContentType); nct != ct {
 			if cf, err = h.newCodec(nct); err != nil {
@@ -331,7 +310,7 @@ func (h *Server) HTTPHandlerFunc(handler interface{}) (http.HandlerFunc, error)
 			return
 		}

-		if nscode := GetRspCode(ctx); nscode != 0 {
+		if nscode := GetResponseStatusCode(ctx); nscode != 0 {
 			scode = nscode
 		}
 		w.WriteHeader(scode)
@@ -350,31 +329,33 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {

 	ts := time.Now()

-	ctx := context.WithValue(r.Context(), rspCodeKey{}, &rspCodeVal{})
-	ctx = context.WithValue(ctx, rspHeaderKey{}, &rspHeaderVal{})
+	ctx := context.WithValue(r.Context(), rspStatusCodeKey{}, &rspStatusCodeVal{})
+	ctx = context.WithValue(ctx, rspMetadataKey{}, &rspMetadataVal{m: metadata.New(0)})

 	md, ok := metadata.FromIncomingContext(ctx)
 	if !ok {
 		md = metadata.New(len(r.Header) + 8)
 	}
 	for k, v := range r.Header {
-		md[k] = strings.Join(v, ", ")
+		md[k] = append(md[k], v...)
 	}
-	md["RemoteAddr"] = r.RemoteAddr
+
+	md["RemoteAddr"] = append(md["RemoteAddr"], r.RemoteAddr)
 	if r.TLS != nil {
-		md["Scheme"] = "https"
+		md["Scheme"] = append(md["Scheme"], "https")
 	} else {
-		md["Scheme"] = "http"
+		md["Scheme"] = append(md["Scheme"], "http")
 	}
-	md["Method"] = r.Method
-	md["URL"] = r.URL.String()
-	md["Proto"] = r.Proto
-	md["ContentLength"] = fmt.Sprintf("%d", r.ContentLength)
+	md["Method"] = append(md["Method"], r.Method)
+	md["URL"] = append(md["URL"], r.URL.String())
+	md["Proto"] = append(md["Proto"], r.Proto)
+	md["Content-Length"] = append(md["Content-Length"], fmt.Sprintf("%d", r.ContentLength))
 	if len(r.TransferEncoding) > 0 {
-		md["TransferEncoding"] = strings.Join(r.TransferEncoding, ",")
+		md["Transfer-Encoding"] = append(md["Transfer-Encoding"], r.TransferEncoding...)
 	}
-	md["Host"] = r.Host
-	md["RequestURI"] = r.RequestURI
+	md["Host"] = append(md["Host"], r.Host)
+	md["RequestURI"] = append(md["RequestURI"], r.RequestURI)
+
 	ctx = metadata.NewIncomingContext(ctx, md)
 	ctx = metadata.NewOutgoingContext(ctx, metadata.New(0))

@@ -408,8 +389,7 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}

 	if !match && h.registerRPC {
-		microMethod, mok := md.Get(metadata.HeaderEndpoint)
-		if mok {
+		for _, microMethod := range md.Get(metadata.HeaderEndpoint) {
 			serviceMethod := strings.Split(microMethod, ".")
 			if len(serviceMethod) == 2 {
 				if shdlr, ok := h.handlers[serviceMethod[0]]; ok {
@@ -423,6 +403,7 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 						hldr = fh.(*patHandler)
 						handler = hdlr
 					}
+
 				}
 			}
 		}
@@ -440,7 +421,7 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 					),
 				)
 				defer func() {
-					n := GetRspCode(ctx)
+					n := GetResponseStatusCode(ctx)
 					if s, _ := sp.Status(); s != tracer.SpanStatusError && n > 399 {
 						sp.SetStatus(tracer.SpanStatusError, http.StatusText(n))
 					}
@@ -452,7 +433,7 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 				h.opts.Meter.Counter(semconv.ServerRequestInflight, "endpoint", endpointName, "server", "http").Inc()

 				defer func() {
-					n := GetRspCode(ctx)
+					n := GetResponseStatusCode(ctx)
 					if n > 399 {
 						h.opts.Meter.Counter(semconv.ServerRequestTotal, "endpoint", endpointName, "server", "http", "status", "success", "code", strconv.Itoa(n)).Inc()
 					} else {
@@ -480,7 +461,7 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			)

 			defer func() {
-				if n := GetRspCode(ctx); n > 399 {
+				if n := GetResponseStatusCode(ctx); n > 399 {
 					sp.SetStatus(tracer.SpanStatusError, http.StatusText(n))
 				} else {
 					sp.SetStatus(tracer.SpanStatusError, http.StatusText(http.StatusNotFound))
@@ -519,7 +500,7 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			h.opts.Meter.Histogram(semconv.ServerRequestDurationSeconds, "endpoint", handler.name, "server", "http").Update(te.Seconds())
 			h.opts.Meter.Counter(semconv.ServerRequestInflight, "endpoint", handler.name, "server", "http").Dec()

-			n := GetRspCode(ctx)
+			n := GetResponseStatusCode(ctx)
 			if n > 399 {
 				h.opts.Meter.Counter(semconv.ServerRequestTotal, "endpoint", handler.name, "server", "http", "status", "failure", "code", strconv.Itoa(n)).Inc()
 			} else {
@@ -529,7 +510,7 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}

 	defer func() {
-		n := GetRspCode(ctx)
+		n := GetResponseStatusCode(ctx)
 		if n > 399 {
 			if s, _ := sp.Status(); s != tracer.SpanStatusError {
 				sp.SetStatus(tracer.SpanStatusError, http.StatusText(n))
@@ -623,17 +604,6 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			err = rerr.(error)
 		}

-		md, ok := metadata.FromOutgoingContext(ctx)
-		if !ok {
-			md = metadata.New(0)
-		}
-		if nmd, ok := metadata.FromOutgoingContext(fctx); ok {
-			for k, v := range nmd {
-				md.Set(k, v)
-			}
-		}
-		metadata.SetOutgoingContext(ctx, md)
-
 		if err != nil && sp != nil {
 			sp.SetStatus(tracer.SpanStatusError, err.Error())
 		}
@@ -660,17 +630,8 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	appErr := fn(ctx, hr, replyv.Interface())

 	w.Header().Set(metadata.HeaderContentType, ct)
-	if md, ok := metadata.FromOutgoingContext(ctx); ok {
-		for k, v := range md {
-			w.Header().Set(k, v)
-		}
-	}
-	if md := getRspHeader(ctx); md != nil {
-		for k, v := range md {
-			for _, vv := range v {
-				w.Header().Add(k, vv)
-			}
-		}
+	for k, v := range getResponseMetadata(ctx) {
+		w.Header()[k] = v
 	}
 	if nct := w.Header().Get(metadata.HeaderContentType); nct != ct {
 		if cf, err = h.newCodec(nct); err != nil {
@@ -699,7 +660,7 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			handler.sopts.Logger.Error(handler.sopts.Context, "handler error", err)
 		}
 		scode = http.StatusInternalServerError
-	} else if nscode := GetRspCode(ctx); nscode != 0 {
+	} else if nscode := GetResponseStatusCode(ctx); nscode != 0 {
 		scode = nscode
 	}

--- a/handler/generate.go
+++ b/handler/generate.go
@@ -2,11 +2,11 @@ package handler

 import (
 	// import required packages
-	_ "go.unistack.org/micro-proto/v3/openapiv3"
+	_ "go.unistack.org/micro-proto/v4/openapiv3"
 )

 //go:generate sh -c "curl -L https://github.com/swagger-api/swagger-ui/archive/refs/tags/v4.18.3.zip -o - | bsdtar -C swagger-ui --strip-components=2 -xv swagger-ui-4.18.3/dist && rm swagger-ui/*.map swagger-ui/*-es-*.js swagger-ui/swagger-ui.js swagger-ui/swagger-initializer.js"

-//go:generate sh -c "protoc -I./ -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v3) --go-micro_out='components=micro|http|server',standalone=false,debug=true,paths=source_relative:./ ./meter/meter.proto"
+//go:generate sh -c "protoc -I./ -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go-micro_out='components=micro|http|server',standalone=false,debug=true,paths=source_relative:./ ./meter/meter.proto"

-//go:generate sh -c "protoc -I./ -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v3) --go-micro_out='components=micro|http|server',standalone=false,debug=true,paths=source_relative:./ ./health/health.proto"
+//go:generate sh -c "protoc -I./ -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go-micro_out='components=micro|http|server',standalone=false,debug=true,paths=source_relative:./ ./health/health.proto"
--- a/handler/graphql/graphql.go
+++ b/handler/graphql/graphql.go
@@ -7,8 +7,8 @@ import (
 	"fmt"

 	"github.com/99designs/gqlgen/graphql"
-	"go.unistack.org/micro/v3/logger"
-	"go.unistack.org/micro/v3/store"
+	"go.unistack.org/micro/v4/logger"
+	"go.unistack.org/micro/v4/store"
 )

 var _ graphql.Cache = (*cacheWrapper)(nil)
--- a/handler/health/health.go
+++ b/handler/health/health.go
@@ -3,8 +3,8 @@ package health_handler
 import (
 	"context"

-	codecpb "go.unistack.org/micro-proto/v3/codec"
-	"go.unistack.org/micro/v3/errors"
+	codecpb "go.unistack.org/micro-proto/v4/codec"
+	"go.unistack.org/micro/v4/errors"
 )

 var _ HealthServiceServer = &Handler{}
--- a/handler/health/health.proto
+++ b/handler/health/health.proto
@@ -1,7 +1,7 @@
 syntax = "proto3";

-package micro.server.http.v3.handler.health;
-option go_package = "go.unistack.org/micro-server-http/v3/handler/health;health_handler";
+package micro.server.http.v4.handler.health;
+option go_package = "go.unistack.org/micro-server-http/v4/handler/health;health_handler";

 import "api/annotations.proto";
 import "openapiv3/annotations.proto";
--- a/handler/health/health_micro.pb.go
+++ b/handler/health/health_micro.pb.go
@@ -1,15 +1,15 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
 // versions:
-// - protoc-gen-go-micro v3.10.4
-// - protoc              v5.28.3
+// - protoc-gen-go-micro v4.1.0
+// - protoc              v5.29.3
 // source: health/health.proto

 package health_handler

 import (
 	context "context"
-	codec "go.unistack.org/micro-proto/v3/codec"
-	client "go.unistack.org/micro/v3/client"
+	codec "go.unistack.org/micro-proto/v4/codec"
+	client "go.unistack.org/micro/v4/client"
 )

 var (
--- a/handler/health/health_micro_http.pb.go
+++ b/handler/health/health_micro_http.pb.go
@@ -1,21 +1,21 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v3.10.4
+// protoc-gen-go-micro version: v4.1.0
 // source: health/health.proto

 package health_handler

 import (
 	context "context"
-	v31 "go.unistack.org/micro-client-http/v3"
-	codec "go.unistack.org/micro-proto/v3/codec"
-	v3 "go.unistack.org/micro-server-http/v3"
-	client "go.unistack.org/micro/v3/client"
-	server "go.unistack.org/micro/v3/server"
+	v41 "go.unistack.org/micro-client-http/v4"
+	codec "go.unistack.org/micro-proto/v4/codec"
+	v4 "go.unistack.org/micro-server-http/v4"
+	client "go.unistack.org/micro/v4/client"
+	server "go.unistack.org/micro/v4/server"
 	http "net/http"
 )

 var (
-	HealthServiceServerEndpoints = []v3.EndpointMetadata{
+	HealthServiceServerEndpoints = []v4.EndpointMetadata{
 		{
 			Name:   "HealthService.Healthy",
 			Path:   "/health",
@@ -81,11 +81,11 @@ func (c *healthServiceClient) Healthy(ctx context.Context, req *codec.Frame, opt
 	errmap := make(map[string]interface{}, 1)
 	errmap["default"] = &codec.Frame{}
 	opts = append(opts,
-		v31.ErrorMap(errmap),
+		v41.ErrorMap(errmap),
 	)
 	opts = append(opts,
-		v31.Method(http.MethodGet),
-		v31.Path("/health"),
+		v41.Method(http.MethodGet),
+		v41.Path("/health"),
 	)
 	rsp := &codec.Frame{}
 	err := c.c.Call(ctx, c.c.NewRequest(c.name, "HealthService.Healthy", req), rsp, opts...)
@@ -99,11 +99,11 @@ func (c *healthServiceClient) Live(ctx context.Context, req *codec.Frame, opts .
 	errmap := make(map[string]interface{}, 1)
 	errmap["default"] = &codec.Frame{}
 	opts = append(opts,
-		v31.ErrorMap(errmap),
+		v41.ErrorMap(errmap),
 	)
 	opts = append(opts,
-		v31.Method(http.MethodGet),
-		v31.Path("/live"),
+		v41.Method(http.MethodGet),
+		v41.Path("/live"),
 	)
 	rsp := &codec.Frame{}
 	err := c.c.Call(ctx, c.c.NewRequest(c.name, "HealthService.Live", req), rsp, opts...)
@@ -117,11 +117,11 @@ func (c *healthServiceClient) Ready(ctx context.Context, req *codec.Frame, opts
 	errmap := make(map[string]interface{}, 1)
 	errmap["default"] = &codec.Frame{}
 	opts = append(opts,
-		v31.ErrorMap(errmap),
+		v41.ErrorMap(errmap),
 	)
 	opts = append(opts,
-		v31.Method(http.MethodGet),
-		v31.Path("/ready"),
+		v41.Method(http.MethodGet),
+		v41.Path("/ready"),
 	)
 	rsp := &codec.Frame{}
 	err := c.c.Call(ctx, c.c.NewRequest(c.name, "HealthService.Ready", req), rsp, opts...)
@@ -135,11 +135,11 @@ func (c *healthServiceClient) Version(ctx context.Context, req *codec.Frame, opt
 	errmap := make(map[string]interface{}, 1)
 	errmap["default"] = &codec.Frame{}
 	opts = append(opts,
-		v31.ErrorMap(errmap),
+		v41.ErrorMap(errmap),
 	)
 	opts = append(opts,
-		v31.Method(http.MethodGet),
-		v31.Path("/version"),
+		v41.Method(http.MethodGet),
+		v41.Path("/version"),
 	)
 	rsp := &codec.Frame{}
 	err := c.c.Call(ctx, c.c.NewRequest(c.name, "HealthService.Version", req), rsp, opts...)
@@ -180,7 +180,6 @@ func RegisterHealthServiceServer(s server.Server, sh HealthServiceServer, opts .
 		healthService
 	}
 	h := &healthServiceServer{sh}
-	var nopts []server.HandlerOption
-	nopts = append(nopts, v3.HandlerEndpoints(HealthServiceServerEndpoints))
-	return s.Handle(s.NewHandler(&HealthService{h}, append(nopts, opts...)...))
+	opts = append(opts, v4.HandlerEndpoints(HealthServiceServerEndpoints))
+	return s.Handle(s.NewHandler(&HealthService{h}, opts...))
 }
--- a/handler/meter/meter.go
+++ b/handler/meter/meter.go
@@ -4,14 +4,17 @@ import (
 	"bytes"
 	"compress/gzip"
 	"context"
+	"fmt"
 	"io"
+	http "net/http"
 	"strings"
 	"sync"

-	codecpb "go.unistack.org/micro-proto/v3/codec"
-	"go.unistack.org/micro/v3/logger"
-	"go.unistack.org/micro/v3/metadata"
-	"go.unistack.org/micro/v3/meter"
+	codecpb "go.unistack.org/micro-proto/v4/codec"
+	httpsrv "go.unistack.org/micro-server-http/v4"
+	"go.unistack.org/micro/v4/logger"
+	"go.unistack.org/micro/v4/metadata"
+	"go.unistack.org/micro/v4/meter"
 )

 const (
@@ -84,34 +87,85 @@ func NewHandler(opts ...Option) *Handler {
 	return &Handler{Options: options}
 }

-func (h *Handler) Metrics(ctx context.Context, req *codecpb.Frame, rsp *codecpb.Frame) error {
-	log, ok := logger.FromContext(ctx)
-	if !ok {
-		log = logger.DefaultLogger
-	}
+func (h *Handler) HTTPHandlerFunc(w http.ResponseWriter, r *http.Request) {
+	var wr io.Writer
+	if v := r.Header.Get(acceptEncodingHeader); strings.Contains(v, "gzip") && !h.Options.DisableCompress {
+		w.Header().Add(contentEncodingHeader, "gzip")

-	buf := bufPool.Get().(*bytes.Buffer)
-	defer bufPool.Put(buf)
-	buf.Reset()
-
-	w := io.Writer(buf)
-
-	if md, ok := metadata.FromOutgoingContext(ctx); gzipAccepted(md) && ok && !h.Options.DisableCompress {
-		omd, _ := metadata.FromOutgoingContext(ctx)
-		omd.Set(contentEncodingHeader, "gzip")
 		gz := gzipPool.Get().(*gzip.Writer)
 		defer gzipPool.Put(gz)

 		gz.Reset(w)
 		defer gz.Close()

-		w = gz
-		gz.Flush()
+		wr = gz
+	} else {
+		wr = w
 	}

-	if err := h.Options.Meter.Write(w, h.Options.MeterOptions...); err != nil {
+	if err := h.Options.Meter.Write(wr, h.Options.MeterOptions...); err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+
+	// gz.Flush() must be called after writing metrics to ensure buffered data is written to the underlying writer.
+	if gz, ok := wr.(*gzip.Writer); ok {
+		gz.Flush()
+	}
+}
+
+func (h *Handler) Metrics(ctx context.Context, req *codecpb.Frame, rsp *codecpb.Frame) error {
+	log, ok := logger.FromContext(ctx)
+	if !ok {
+		log = logger.DefaultLogger
+	}
+
+	var err error
+
+	if md, ok := metadata.FromIncomingContext(ctx); ok && gzipAccepted(md) && !h.Options.DisableCompress {
+		err = h.writeMetricsGzip(ctx, rsp)
+	} else {
+		err = h.writeMetricsPlain(ctx, rsp)
+	}
+
+	if err != nil {
 		log.Error(ctx, "http/meter write failed", err)
-		return nil
+	}
+
+	return nil
+}
+
+func (h *Handler) writeMetricsGzip(ctx context.Context, rsp *codecpb.Frame) error {
+	httpsrv.AppendResponseMetadata(ctx, metadata.Pairs(contentEncodingHeader, "gzip"))
+
+	buf := bufPool.Get().(*bytes.Buffer)
+	defer bufPool.Put(buf)
+	buf.Reset()
+
+	gz := gzipPool.Get().(*gzip.Writer)
+	defer gzipPool.Put(gz)
+	gz.Reset(buf)
+
+	if err := h.Options.Meter.Write(gz, h.Options.MeterOptions...); err != nil {
+		return fmt.Errorf("meter write: %w", err)
+	}
+
+	if err := gz.Close(); err != nil {
+		return fmt.Errorf("gzip close: %w", err)
+	}
+
+	rsp.Data = buf.Bytes()
+
+	return nil
+}
+
+func (h *Handler) writeMetricsPlain(_ context.Context, rsp *codecpb.Frame) error {
+	buf := bufPool.Get().(*bytes.Buffer)
+	defer bufPool.Put(buf)
+	buf.Reset()
+
+	if err := h.Options.Meter.Write(buf, h.Options.MeterOptions...); err != nil {
+		return fmt.Errorf("meter write: %w", err)
 	}

 	rsp.Data = buf.Bytes()
@@ -121,12 +175,7 @@ func (h *Handler) Metrics(ctx context.Context, req *codecpb.Frame, rsp *codecpb.

 // gzipAccepted returns whether the client will accept gzip-encoded content.
 func gzipAccepted(md metadata.Metadata) bool {
-	a, ok := md.Get(acceptEncodingHeader)
-	if !ok {
-		return false
-	}
-	if strings.Contains(a, "gzip") {
-		return true
-	}
-	return false
+	a := md.GetJoined(acceptEncodingHeader)
+
+	return strings.Contains(a, "gzip")
 }
--- a/handler/meter/meter.proto
+++ b/handler/meter/meter.proto
@@ -1,7 +1,7 @@
 syntax = "proto3";

 package micro.server.http.v3.handler.meter;
-option go_package = "go.unistack.org/micro-server-http/v3/handler/meter;meter_handler";
+option go_package = "go.unistack.org/micro-server-http/v4/handler/meter;meter_handler";

 import "api/annotations.proto";
 import "openapiv3/annotations.proto";
--- a/handler/meter/meter_micro.pb.go
+++ b/handler/meter/meter_micro.pb.go
@@ -1,15 +1,15 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
 // versions:
-// - protoc-gen-go-micro v3.10.4
-// - protoc              v5.28.3
+// - protoc-gen-go-micro v4.1.0
+// - protoc              v5.29.3
 // source: meter/meter.proto

 package meter_handler

 import (
 	context "context"
-	codec "go.unistack.org/micro-proto/v3/codec"
-	client "go.unistack.org/micro/v3/client"
+	codec "go.unistack.org/micro-proto/v4/codec"
+	client "go.unistack.org/micro/v4/client"
 )

 var (
--- a/handler/meter/meter_micro_http.pb.go
+++ b/handler/meter/meter_micro_http.pb.go
@@ -1,21 +1,21 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v3.10.4
+// protoc-gen-go-micro version: v4.1.0
 // source: meter/meter.proto

 package meter_handler

 import (
 	context "context"
-	v31 "go.unistack.org/micro-client-http/v3"
-	codec "go.unistack.org/micro-proto/v3/codec"
-	v3 "go.unistack.org/micro-server-http/v3"
-	client "go.unistack.org/micro/v3/client"
-	server "go.unistack.org/micro/v3/server"
+	v41 "go.unistack.org/micro-client-http/v4"
+	codec "go.unistack.org/micro-proto/v4/codec"
+	v4 "go.unistack.org/micro-server-http/v4"
+	client "go.unistack.org/micro/v4/client"
+	server "go.unistack.org/micro/v4/server"
 	http "net/http"
 )

 var (
-	MeterServiceServerEndpoints = []v3.EndpointMetadata{
+	MeterServiceServerEndpoints = []v4.EndpointMetadata{
 		{
 			Name:   "MeterService.Metrics",
 			Path:   "/metrics",
@@ -39,11 +39,11 @@ func (c *meterServiceClient) Metrics(ctx context.Context, req *codec.Frame, opts
 	errmap := make(map[string]interface{}, 1)
 	errmap["default"] = &codec.Frame{}
 	opts = append(opts,
-		v31.ErrorMap(errmap),
+		v41.ErrorMap(errmap),
 	)
 	opts = append(opts,
-		v31.Method(http.MethodGet),
-		v31.Path("/metrics"),
+		v41.Method(http.MethodGet),
+		v41.Path("/metrics"),
 	)
 	rsp := &codec.Frame{}
 	err := c.c.Call(ctx, c.c.NewRequest(c.name, "MeterService.Metrics", req), rsp, opts...)
@@ -69,7 +69,6 @@ func RegisterMeterServiceServer(s server.Server, sh MeterServiceServer, opts ...
 		meterService
 	}
 	h := &meterServiceServer{sh}
-	var nopts []server.HandlerOption
-	nopts = append(nopts, v3.HandlerEndpoints(MeterServiceServerEndpoints))
-	return s.Handle(s.NewHandler(&MeterService{h}, append(nopts, opts...)...))
+	opts = append(opts, v4.HandlerEndpoints(MeterServiceServerEndpoints))
+	return s.Handle(s.NewHandler(&MeterService{h}, opts...))
 }
--- a/handler/swagger/swagger.go
+++ b/handler/swagger/swagger.go
@@ -4,8 +4,8 @@ import (
 	"io/fs"
 	"net/http"

-	yamlcodec "go.unistack.org/micro-codec-yaml/v3"
-	rutil "go.unistack.org/micro/v3/util/reflect"
+	yamlcodec "go.unistack.org/micro-codec-yaml/v4"
+	rutil "go.unistack.org/micro/v4/util/reflect"
 )

 // Handler append to generated swagger data from dst map[string]interface{}
--- a/http.go
+++ b/http.go
@@ -9,18 +9,16 @@ import (
 	"net"
 	"net/http"
 	"reflect"
-	"sort"
 	"strings"
 	"sync"
 	"sync/atomic"
 	"time"

-	"go.unistack.org/micro/v3/broker"
-	"go.unistack.org/micro/v3/codec"
-	"go.unistack.org/micro/v3/logger"
-	"go.unistack.org/micro/v3/register"
-	"go.unistack.org/micro/v3/server"
-	rhttp "go.unistack.org/micro/v3/util/http"
+	"go.unistack.org/micro/v4/codec"
+	"go.unistack.org/micro/v4/logger"
+	"go.unistack.org/micro/v4/register"
+	"go.unistack.org/micro/v4/server"
+	rhttp "go.unistack.org/micro/v4/util/http"
 	"golang.org/x/net/netutil"
 )

@@ -31,7 +29,6 @@ type Server struct {
 	rsvc         *register.Service
 	handlers     map[string]server.Handler
 	exit         chan chan error
-	subscribers  map[*httpSubscriber][]broker.Subscriber
 	errorHandler func(context.Context, server.Handler, http.ResponseWriter, *http.Request, error, int)
 	pathHandlers *rhttp.Trie
 	opts         server.Options
@@ -39,18 +36,18 @@ type Server struct {
 	stateReady   *atomic.Uint32
 	stateHealth  *atomic.Uint32
 	registerRPC  bool
-	sync.RWMutex
-	registered bool
-	init       bool
+	mu           sync.RWMutex
+	registered   bool
+	init         bool
 }

 func (h *Server) newCodec(ct string) (codec.Codec, error) {
 	if idx := strings.IndexRune(ct, ';'); idx >= 0 {
 		ct = ct[:idx]
 	}
-	h.RLock()
+	h.mu.RLock()
 	cf, ok := h.opts.Codecs[ct]
-	h.RUnlock()
+	h.mu.RUnlock()
 	if ok {
 		return cf, nil
 	}
@@ -58,9 +55,9 @@ func (h *Server) newCodec(ct string) (codec.Codec, error) {
 }

 func (h *Server) Options() server.Options {
-	h.Lock()
+	h.mu.Lock()
 	opts := h.opts
-	h.Unlock()
+	h.mu.Unlock()
 	return opts
 }

@@ -69,7 +66,7 @@ func (h *Server) Init(opts ...server.Option) error {
 		return nil
 	}

-	h.Lock()
+	h.mu.Lock()

 	for _, o := range opts {
 		o(&h.opts)
@@ -92,41 +89,41 @@ func (h *Server) Init(opts ...server.Option) error {
 		for pm, ps := range phs.h {
 			for pp, ph := range ps {
 				if err := h.pathHandlers.Insert([]string{pm}, pp, ph); err != nil {
-					h.Unlock()
+					h.mu.Unlock()
 					return err
 				}
 			}
 		}
 	}
-	h.Unlock()
+	h.mu.Unlock()

-	h.RLock()
+	h.mu.RLock()
 	if err := h.opts.Register.Init(); err != nil {
-		h.RUnlock()
+		h.mu.RUnlock()
 		return err
 	}
 	if err := h.opts.Broker.Init(); err != nil {
-		h.RUnlock()
+		h.mu.RUnlock()
 		return err
 	}
 	if err := h.opts.Tracer.Init(); err != nil {
-		h.RUnlock()
+		h.mu.RUnlock()
 		return err
 	}
 	if err := h.opts.Logger.Init(); err != nil {
-		h.RUnlock()
+		h.mu.RUnlock()
 		return err
 	}
 	if err := h.opts.Meter.Init(); err != nil {
-		h.RUnlock()
+		h.mu.RUnlock()
 		return err
 	}

-	h.RUnlock()
+	h.mu.RUnlock()

-	h.Lock()
+	h.mu.Lock()
 	h.init = true
-	h.Unlock()
+	h.mu.Unlock()

 	return nil
 }
@@ -135,27 +132,27 @@ func (h *Server) Handle(handler server.Handler) error {
 	// passed unknown handler
 	hdlr, ok := handler.(*httpHandler)
 	if !ok {
-		h.Lock()
+		h.mu.Lock()
 		h.hd = handler
-		h.Unlock()
+		h.mu.Unlock()
 		return nil
 	}

 	// passed http.Handler like some muxer
 	if _, ok := hdlr.hd.(http.Handler); ok {
-		h.Lock()
+		h.mu.Lock()
 		h.hd = handler
-		h.Unlock()
+		h.mu.Unlock()
 		return nil
 	}

 	// passed micro compat handler
-	h.Lock()
+	h.mu.Lock()
 	if h.handlers == nil {
 		h.handlers = make(map[string]server.Handler)
 	}
 	h.handlers[handler.Name()] = handler
-	h.Unlock()
+	h.mu.Unlock()

 	return nil
 }
@@ -172,17 +169,6 @@ func (h *Server) NewHandler(handler interface{}, opts ...server.HandlerOption) s

 	tp := reflect.TypeOf(handler)

-	/*
-		if len(options.Metadata) == 0 {
-			if h.registerRPC {
-				h.opts.Logger.Infof(h.opts.Context, "register rpc handler for http.MethodPost %s /%s", hn, hn)
-				if err := hdlr.handlers.Insert([]string{http.MethodPost}, "/"+hn, pth); err != nil {
-					h.opts.Logger.Errorf(h.opts.Context, "cant add rpc handler for http.MethodPost %s /%s", hn, hn)
-				}
-			}
-		}
-	*/
-
 	registerCORS := false
 	if v, ok := options.Context.Value(registerCORSHandlerKey{}).(bool); ok && v {
 		registerCORS = true
@@ -220,13 +206,16 @@ func (h *Server) NewHandler(handler interface{}, opts ...server.HandlerOption) s
 		pth := &patHandler{mtype: mtype, name: name, rcvr: rcvr}
 		hdlr.name = name

-		methods := []string{md["Method"]}
+		methods := md["Method"]
 		if registerCORS {
 			methods = append(methods, http.MethodOptions)
 		}

-		if err := hdlr.handlers.Insert(methods, md["Path"], pth); err != nil {
-			h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("cant add handler for %v %s", methods, md["Path"]))
+		pattern := md["Path"]
+		for i := len(pattern) - 1; i >= 0; i-- {
+			if err := hdlr.handlers.Insert(methods, pattern[i], pth); err != nil {
+				h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("cant add handler for %v %s: index %d", methods, md["Path"], i))
+			}
 		}

 		if h.registerRPC {
@@ -304,40 +293,11 @@ func (h *Server) NewHandler(handler interface{}, opts ...server.HandlerOption) s
 	return hdlr
 }

-func (h *Server) NewSubscriber(topic string, handler interface{}, opts ...server.SubscriberOption) server.Subscriber {
-	return newSubscriber(topic, handler, opts...)
-}
-
-func (h *Server) Subscribe(sb server.Subscriber) error {
-	sub, ok := sb.(*httpSubscriber)
-	if !ok {
-		return fmt.Errorf("invalid subscriber: expected *httpSubscriber")
-	}
-	if len(sub.handlers) == 0 {
-		return fmt.Errorf("invalid subscriber: no handler functions")
-	}
-
-	if err := server.ValidateSubscriber(sb); err != nil {
-		return err
-	}
-
-	h.RLock()
-	_, ok = h.subscribers[sub]
-	h.RUnlock()
-	if ok {
-		return fmt.Errorf("subscriber %v already exists", h)
-	}
-	h.Lock()
-	h.subscribers[sub] = nil
-	h.Unlock()
-	return nil
-}
-
 func (h *Server) Register() error {
-	h.RLock()
+	h.mu.RLock()
 	rsvc := h.rsvc
 	config := h.opts
-	h.RUnlock()
+	h.mu.RUnlock()

 	// if service already filled, reuse it and return early
 	if rsvc != nil {
@@ -352,21 +312,9 @@ func (h *Server) Register() error {
 		return err
 	}

-	h.Lock()
-	subscriberList := make([]*httpSubscriber, 0, len(h.subscribers))
-	for e := range h.subscribers {
-		// Only advertise non internal subscribers
-		subscriberList = append(subscriberList, e)
-	}
-	sort.Slice(subscriberList, func(i, j int) bool {
-		return subscriberList[i].topic > subscriberList[j].topic
-	})
-
-	h.Unlock()
-
-	h.RLock()
+	h.mu.RLock()
 	registered := h.registered
-	h.RUnlock()
+	h.mu.RUnlock()

 	if !registered {
 		if config.Logger.V(logger.InfoLevel) {
@@ -384,48 +332,19 @@ func (h *Server) Register() error {
 		return nil
 	}

-	h.Lock()
+	h.mu.Lock()

 	h.registered = true
 	h.rsvc = service
-	h.Unlock()
-
-	return nil
-}
-
-func (h *Server) subscribe() error {
-	config := h.opts
-
-	for sb := range h.subscribers {
-		handler := h.createSubHandler(sb, config)
-		var opts []broker.SubscribeOption
-		if queue := sb.Options().Queue; len(queue) > 0 {
-			opts = append(opts, broker.SubscribeGroup(queue))
-		}
-
-		subCtx := config.Context
-		if cx := sb.Options().Context; cx != nil {
-			subCtx = cx
-		}
-		opts = append(opts, broker.SubscribeContext(subCtx))
-		opts = append(opts, broker.SubscribeAutoAck(sb.Options().AutoAck))
-		opts = append(opts, broker.SubscribeBodyOnly(sb.Options().BodyOnly))
-
-		sub, err := config.Broker.Subscribe(subCtx, sb.Topic(), handler, opts...)
-		if err != nil {
-			h.Unlock()
-			return err
-		}
-		h.subscribers[sb] = []broker.Subscriber{sub}
-	}
+	h.mu.Unlock()

 	return nil
 }

 func (h *Server) Deregister() error {
-	h.RLock()
+	h.mu.RLock()
 	config := h.opts
-	h.RUnlock()
+	h.mu.RUnlock()

 	service, err := server.NewRegisterService(h)
 	if err != nil {
@@ -440,40 +359,24 @@ func (h *Server) Deregister() error {
 		return err
 	}

-	h.Lock()
+	h.mu.Lock()
 	h.rsvc = nil

 	if !h.registered {
-		h.Unlock()
+		h.mu.Unlock()
 		return nil
 	}

 	h.registered = false

-	subCtx := h.opts.Context
-	for sb, subs := range h.subscribers {
-		if cx := sb.Options().Context; cx != nil {
-			subCtx = cx
-		}
-
-		for _, sub := range subs {
-			config.Logger.Info(config.Context, "Unsubscribing from topic: "+sub.Topic())
-			if err := sub.Unsubscribe(subCtx); err != nil {
-				h.Unlock()
-				config.Logger.Error(config.Context, fmt.Sprintf("failed to unsubscribe topic: %s, error", sb.Topic()), err)
-				return err
-			}
-		}
-		h.subscribers[sb] = nil
-	}
-	h.Unlock()
+	h.mu.Unlock()
 	return nil
 }

 func (h *Server) Start() error {
-	h.RLock()
+	h.mu.RLock()
 	config := h.opts
-	h.RUnlock()
+	h.mu.RUnlock()

 	// micro: config.Transport.Listen(config.Address)
 	var ts net.Listener
@@ -503,9 +406,9 @@ func (h *Server) Start() error {
 		config.Logger.Info(config.Context, "Listening on "+ts.Addr().String())
 	}

-	h.Lock()
+	h.mu.Lock()
 	h.opts.Address = ts.Addr().String()
-	h.Unlock()
+	h.mu.Unlock()

 	var handler http.Handler

@@ -552,10 +455,6 @@ func (h *Server) Start() error {
 		}
 	}

-	if err := h.subscribe(); err != nil {
-		return err
-	}
-
 	fn := handler

 	var hs *http.Server
@@ -600,9 +499,9 @@ func (h *Server) Start() error {
 			select {
 			// register self on interval
 			case <-t.C:
-				h.RLock()
+				h.mu.RLock()
 				registered := h.registered
-				h.RUnlock()
+				h.mu.RUnlock()
 				rerr := config.RegisterCheck(h.opts.Context)
 				// nolint: nestif
 				if rerr != nil && registered {
@@ -701,7 +600,6 @@ func NewServer(opts ...server.Option) *Server {
 		stateHealth:  &atomic.Uint32{},
 		opts:         options,
 		exit:         make(chan chan error),
-		subscribers:  make(map[*httpSubscriber][]broker.Subscriber),
 		errorHandler: eh,
 		pathHandlers: rhttp.NewTrie(),
 	}
--- a/message.go
+++ b/message.go
@@ -1,34 +0,0 @@
-package http
-
-import (
-	"go.unistack.org/micro/v3/codec"
-	"go.unistack.org/micro/v3/metadata"
-)
-
-type httpMessage struct {
-	payload     interface{}
-	codec       codec.Codec
-	header      metadata.Metadata
-	topic       string
-	contentType string
-}
-
-func (r *httpMessage) Topic() string {
-	return r.topic
-}
-
-func (r *httpMessage) ContentType() string {
-	return r.contentType
-}
-
-func (r *httpMessage) Header() metadata.Metadata {
-	return r.header
-}
-
-func (r *httpMessage) Body() interface{} {
-	return r.payload
-}
-
-func (r *httpMessage) Codec() codec.Codec {
-	return r.codec
-}
--- a/metadata.go
+++ b/metadata.go
@@ -0,0 +1,47 @@
+package http
+
+import (
+	"context"
+
+	"go.unistack.org/micro/v4/metadata"
+)
+
+type (
+	rspMetadataKey struct{}
+	rspMetadataVal struct {
+		m metadata.Metadata
+	}
+)
+
+// AppendResponseMetadata adds metadata entries to metadata.Metadata stored in the context.
+// It expects the context to contain a *rspMetadataVal value under the rspMetadataKey{} key.
+// If the value is missing or invalid, the function does nothing.
+//
+// Note: this function is not thread-safe. Synchronization is required if used from multiple goroutines.
+func AppendResponseMetadata(ctx context.Context, md metadata.Metadata) {
+	if md == nil {
+		return
+	}
+
+	val, ok := ctx.Value(rspMetadataKey{}).(*rspMetadataVal)
+	if !ok || val == nil || val.m == nil {
+		return
+	}
+
+	for key, values := range md {
+		val.m.Append(key, values...)
+	}
+}
+
+// getResponseMetadata retrieves the metadata.Metadata stored in the context.
+//
+// Note: this function is not thread-safe. Synchronization is required if used from multiple goroutines.
+// If you plan to modify the returned metadata, make a full copy to avoid affecting shared state.
+func getResponseMetadata(ctx context.Context) metadata.Metadata {
+	val, ok := ctx.Value(rspMetadataKey{}).(*rspMetadataVal)
+	if !ok || val == nil || val.m == nil {
+		return nil
+	}
+
+	return val.m
+}
--- a/metadata_test.go
+++ b/metadata_test.go
@@ -0,0 +1,136 @@
+package http
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+	"go.unistack.org/micro/v4/metadata"
+)
+
+func TestAppendResponseMetadata(t *testing.T) {
+	tests := []struct {
+		name     string
+		ctx      context.Context
+		md       metadata.Metadata
+		expected context.Context
+	}{
+		{
+			name:     "nil metadata",
+			ctx:      context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{m: metadata.Metadata{}}),
+			md:       nil,
+			expected: context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{m: metadata.Metadata{}}),
+		},
+		{
+			name:     "empty metadata",
+			ctx:      context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{m: metadata.Metadata{}}),
+			md:       metadata.Metadata{},
+			expected: context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{m: metadata.Metadata{}}),
+		},
+		{
+			name:     "context without response metadata key",
+			ctx:      context.Background(),
+			md:       metadata.Pairs("key1", "val1"),
+			expected: context.Background(),
+		},
+		{
+			name:     "context with nil response metadata value",
+			ctx:      context.WithValue(context.Background(), rspMetadataKey{}, nil),
+			md:       metadata.Pairs("key1", "val1"),
+			expected: context.WithValue(context.Background(), rspMetadataKey{}, nil),
+		},
+		{
+			name:     "context with incorrect type in response metadata value",
+			ctx:      context.WithValue(context.Background(), rspMetadataKey{}, struct{}{}),
+			md:       metadata.Pairs("key1", "val1"),
+			expected: context.WithValue(context.Background(), rspMetadataKey{}, struct{}{}),
+		},
+		{
+			name:     "context with response metadata value, but nil metadata",
+			ctx:      context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{m: nil}),
+			md:       metadata.Pairs("key1", "val1"),
+			expected: context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{m: nil}),
+		},
+		{
+			name: "basic metadata append",
+			ctx:  context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{m: metadata.Metadata{}}),
+			md:   metadata.Pairs("key1", "val1"),
+			expected: context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{
+				m: metadata.Metadata{
+					"key1": []string{"val1"},
+				},
+			}),
+		},
+		{
+			name: "multiple values for same key",
+			ctx:  context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{m: metadata.Metadata{}}),
+			md:   metadata.Pairs("key1", "val1", "key1", "val2"),
+			expected: context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{
+				m: metadata.Metadata{
+					"key1": []string{"val1", "val2"},
+				},
+			}),
+		},
+		{
+			name: "multiple values for different keys",
+			ctx:  context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{m: metadata.Metadata{}}),
+			md:   metadata.Pairs("key1", "val1", "key1", "val2", "key2", "val3", "key2", "val4", "key3", "val5"),
+			expected: context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{
+				m: metadata.Metadata{
+					"key1": []string{"val1", "val2"},
+					"key2": []string{"val3", "val4"},
+					"key3": []string{"val5"},
+				},
+			}),
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			AppendResponseMetadata(tt.ctx, tt.md)
+			require.Equal(t, tt.expected, tt.ctx)
+		})
+	}
+}
+
+func TestGetResponseMetadata(t *testing.T) {
+	tests := []struct {
+		name     string
+		ctx      context.Context
+		expected metadata.Metadata
+	}{
+		{
+			name:     "context without response metadata key",
+			ctx:      context.Background(),
+			expected: nil,
+		},
+		{
+			name:     "context with nil response metadata value",
+			ctx:      context.WithValue(context.Background(), rspMetadataKey{}, nil),
+			expected: nil,
+		},
+		{
+			name:     "context with incorrect type in response metadata value",
+			ctx:      context.WithValue(context.Background(), rspMetadataKey{}, &struct{}{}),
+			expected: nil,
+		},
+		{
+			name:     "context with response metadata value, but nil metadata",
+			ctx:      context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{m: nil}),
+			expected: nil,
+		},
+		{
+			name: "valid metadata",
+			ctx: context.WithValue(context.Background(), rspMetadataKey{}, &rspMetadataVal{
+				m: metadata.Pairs("key1", "value1"),
+			}),
+			expected: metadata.Metadata{"key1": {"value1"}},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			require.Equal(t, tt.expected, getResponseMetadata(tt.ctx))
+		})
+	}
+}
--- a/options.go
+++ b/options.go
@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"net/http"

-	"go.unistack.org/micro/v3/server"
+	"go.unistack.org/micro/v4/server"
 )

 // SetError pass error to caller
@@ -31,51 +31,6 @@ func (err *Error) Error() string {
 	return fmt.Sprintf("%v", err.err)
 }

-type (
-	rspCodeKey struct{}
-	rspCodeVal struct {
-		code int
-	}
-)
-
-type (
-	rspHeaderKey struct{}
-	rspHeaderVal struct {
-		h http.Header
-	}
-)
-
-// SetRspHeader add response headers
-func SetRspHeader(ctx context.Context, h http.Header) {
-	if rsp, ok := ctx.Value(rspHeaderKey{}).(*rspHeaderVal); ok {
-		rsp.h = h
-	}
-}
-
-// SetRspCode saves response code in context, must be used by handler to specify http code
-func SetRspCode(ctx context.Context, code int) {
-	if rsp, ok := ctx.Value(rspCodeKey{}).(*rspCodeVal); ok {
-		rsp.code = code
-	}
-}
-
-// getRspHeader get http.Header from context
-func getRspHeader(ctx context.Context) http.Header {
-	if rsp, ok := ctx.Value(rspHeaderKey{}).(*rspHeaderVal); ok {
-		return rsp.h
-	}
-	return nil
-}
-
-// GetRspCode used internally by generated http server handler
-func GetRspCode(ctx context.Context) int {
-	code := int(200)
-	if rsp, ok := ctx.Value(rspCodeKey{}).(*rspCodeVal); ok {
-		code = rsp.code
-	}
-	return code
-}
-
 type middlewareKey struct{}

 // Middleware passes http middlewares
--- a/request.go
+++ b/request.go
@@ -1,15 +1,12 @@
 package http

 import (
-	"go.unistack.org/micro/v3/codec"
-	"go.unistack.org/micro/v3/metadata"
-	"go.unistack.org/micro/v3/server"
+	"go.unistack.org/micro/v4/codec"
+	"go.unistack.org/micro/v4/metadata"
+	"go.unistack.org/micro/v4/server"
 )

-var (
-	_ server.Request = &rpcRequest{}
-	_ server.Message = &rpcMessage{}
-)
+var _ server.Request = &rpcRequest{}

 type rpcRequest struct {
 	// rw          io.ReadWriter
@@ -23,14 +20,6 @@ type rpcRequest struct {
 	stream      bool
 }

-type rpcMessage struct {
-	payload     interface{}
-	codec       codec.Codec
-	header      metadata.Metadata
-	topic       string
-	contentType string
-}
-
 func (r *rpcRequest) ContentType() string {
 	return r.contentType
 }
@@ -66,23 +55,3 @@ func (r *rpcRequest) Stream() bool {
 func (r *rpcRequest) Body() interface{} {
 	return r.payload
 }
-
-func (r *rpcMessage) ContentType() string {
-	return r.contentType
-}
-
-func (r *rpcMessage) Topic() string {
-	return r.topic
-}
-
-func (r *rpcMessage) Body() interface{} {
-	return r.payload
-}
-
-func (r *rpcMessage) Header() metadata.Metadata {
-	return r.header
-}
-
-func (r *rpcMessage) Codec() codec.Codec {
-	return r.codec
-}
--- a/response.go
+++ b/response.go
@@ -0,0 +1,29 @@
+package http
+
+import (
+	"context"
+	"net/http"
+)
+
+type (
+	rspStatusCodeKey struct{}
+	rspStatusCodeVal struct {
+		code int
+	}
+)
+
+// SetResponseStatusCode sets the status code in the context.
+func SetResponseStatusCode(ctx context.Context, code int) {
+	if rsp, ok := ctx.Value(rspStatusCodeKey{}).(*rspStatusCodeVal); ok {
+		rsp.code = code
+	}
+}
+
+// GetResponseStatusCode retrieves the response status code from the context.
+func GetResponseStatusCode(ctx context.Context) int {
+	code := http.StatusOK
+	if rsp, ok := ctx.Value(rspStatusCodeKey{}).(*rspStatusCodeVal); ok {
+		code = rsp.code
+	}
+	return code
+}
--- a/response_test.go
+++ b/response_test.go
@@ -0,0 +1,79 @@
+package http
+
+import (
+	"context"
+	"net/http"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestSetResponseStatusCode(t *testing.T) {
+	tests := []struct {
+		name     string
+		ctx      context.Context
+		code     int
+		expected context.Context
+	}{
+		{
+			name:     "context without response status code key",
+			ctx:      context.Background(),
+			code:     http.StatusOK,
+			expected: context.Background(),
+		},
+		{
+			name:     "context with incorrect type in response status code value",
+			ctx:      context.WithValue(context.Background(), rspStatusCodeKey{}, struct{}{}),
+			code:     http.StatusOK,
+			expected: context.WithValue(context.Background(), rspStatusCodeKey{}, struct{}{}),
+		},
+		{
+			name:     "successfully set response status code",
+			ctx:      context.WithValue(context.Background(), rspStatusCodeKey{}, &rspStatusCodeVal{}),
+			code:     http.StatusOK,
+			expected: context.WithValue(context.Background(), rspStatusCodeKey{}, &rspStatusCodeVal{code: http.StatusOK}),
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			SetResponseStatusCode(tt.ctx, tt.code)
+			require.Equal(t, tt.expected, tt.ctx)
+		})
+	}
+}
+
+func TestGetResponseStatusCode(t *testing.T) {
+	tests := []struct {
+		name     string
+		ctx      context.Context
+		expected int
+	}{
+		{
+			name:     "no value in context, should return 200",
+			ctx:      context.Background(),
+			expected: http.StatusOK,
+		},
+		{
+			name:     "context with nil value",
+			ctx:      context.WithValue(context.Background(), rspStatusCodeKey{}, nil),
+			expected: http.StatusOK,
+		},
+		{
+			name:     "context with wrong type",
+			ctx:      context.WithValue(context.Background(), rspStatusCodeKey{}, struct{}{}),
+			expected: http.StatusOK,
+		},
+		{
+			name:     "context with valid status code",
+			ctx:      context.WithValue(context.Background(), rspStatusCodeKey{}, &rspStatusCodeVal{code: http.StatusNotFound}),
+			expected: http.StatusNotFound,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			require.Equal(t, tt.expected, GetResponseStatusCode(tt.ctx))
+		})
+	}
+}
--- a/server.go
+++ b/server.go
@@ -7,9 +7,11 @@ import (
 	"unicode"
 	"unicode/utf8"

-	"go.unistack.org/micro/v3/server"
+	"go.unistack.org/micro/v4/server"
 )

+var typeOfError = reflect.TypeOf((*error)(nil)).Elem()
+
 type methodType struct {
 	ArgType     reflect.Type
 	ReplyType   reflect.Type
--- a/subscriber.go
+++ b/subscriber.go
@@ -1,176 +0,0 @@
-package http
-
-import (
-	"context"
-	"fmt"
-	"reflect"
-	"strings"
-
-	"go.unistack.org/micro/v3/broker"
-	"go.unistack.org/micro/v3/metadata"
-	"go.unistack.org/micro/v3/options"
-	"go.unistack.org/micro/v3/server"
-)
-
-var typeOfError = reflect.TypeOf((*error)(nil)).Elem()
-
-type handler struct {
-	reqType reflect.Type
-	ctxType reflect.Type
-	method  reflect.Value
-}
-
-type httpSubscriber struct {
-	topic      string
-	rcvr       reflect.Value
-	typ        reflect.Type
-	subscriber interface{}
-	handlers   []*handler
-	opts       server.SubscriberOptions
-}
-
-func newSubscriber(topic string, sub interface{}, opts ...server.SubscriberOption) server.Subscriber {
-	options := server.NewSubscriberOptions(opts...)
-
-	var handlers []*handler
-
-	if typ := reflect.TypeOf(sub); typ.Kind() == reflect.Func {
-		h := &handler{
-			method: reflect.ValueOf(sub),
-		}
-
-		switch typ.NumIn() {
-		case 1:
-			h.reqType = typ.In(0)
-		case 2:
-			h.ctxType = typ.In(0)
-			h.reqType = typ.In(1)
-		}
-
-		handlers = append(handlers, h)
-	} else {
-		for m := 0; m < typ.NumMethod(); m++ {
-			method := typ.Method(m)
-			h := &handler{
-				method: method.Func,
-			}
-
-			switch method.Type.NumIn() {
-			case 2:
-				h.reqType = method.Type.In(1)
-			case 3:
-				h.ctxType = method.Type.In(1)
-				h.reqType = method.Type.In(2)
-			}
-
-			handlers = append(handlers, h)
-		}
-	}
-
-	return &httpSubscriber{
-		rcvr:       reflect.ValueOf(sub),
-		typ:        reflect.TypeOf(sub),
-		topic:      topic,
-		subscriber: sub,
-		handlers:   handlers,
-		opts:       options,
-	}
-}
-
-func (s *Server) createSubHandler(sb *httpSubscriber, opts server.Options) broker.Handler {
-	return func(p broker.Event) error {
-		msg := p.Message()
-		ct := msg.Header["Content-Type"]
-		cf, err := s.newCodec(ct)
-		if err != nil {
-			return err
-		}
-
-		hdr := metadata.Copy(msg.Header)
-		ctx := metadata.NewIncomingContext(context.Background(), hdr)
-		ctx = metadata.NewOutgoingContext(ctx, metadata.New(0))
-
-		results := make(chan error, len(sb.handlers))
-
-		for i := 0; i < len(sb.handlers); i++ {
-			handler := sb.handlers[i]
-
-			var isVal bool
-			var req reflect.Value
-
-			if handler.reqType.Kind() == reflect.Ptr {
-				req = reflect.New(handler.reqType.Elem())
-			} else {
-				req = reflect.New(handler.reqType)
-				isVal = true
-			}
-			if isVal {
-				req = req.Elem()
-			}
-
-			if err := cf.Unmarshal(msg.Body, req.Interface()); err != nil {
-				return err
-			}
-
-			fn := func(ctx context.Context, msg server.Message) error {
-				var vals []reflect.Value
-				if sb.typ.Kind() != reflect.Func {
-					vals = append(vals, sb.rcvr)
-				}
-				if handler.ctxType != nil {
-					vals = append(vals, reflect.ValueOf(ctx))
-				}
-
-				vals = append(vals, reflect.ValueOf(msg.Body()))
-
-				returnValues := handler.method.Call(vals)
-				if err := returnValues[0].Interface(); err != nil {
-					return err.(error)
-				}
-				return nil
-			}
-
-			opts.Hooks.EachPrev(func(hook options.Hook) {
-				if h, ok := hook.(server.HookSubHandler); ok {
-					fn = h(fn)
-				}
-			})
-
-			go func() {
-				results <- fn(ctx, &httpMessage{
-					topic:       sb.topic,
-					contentType: ct,
-					payload:     req.Interface(),
-					header:      msg.Header,
-					codec:       cf,
-				})
-			}()
-		}
-
-		var errors []string
-
-		for i := 0; i < len(sb.handlers); i++ {
-			if err := <-results; err != nil {
-				errors = append(errors, err.Error())
-			}
-		}
-
-		if len(errors) > 0 {
-			return fmt.Errorf("subscriber error: %s", strings.Join(errors, "\n"))
-		}
-
-		return nil
-	}
-}
-
-func (s *httpSubscriber) Topic() string {
-	return s.topic
-}
-
-func (s *httpSubscriber) Subscriber() interface{} {
-	return s.subscriber
-}
-
-func (s *httpSubscriber) Options() server.SubscriberOptions {
-	return s.opts
-}
--- a/util.go
+++ b/util.go
@@ -5,8 +5,8 @@ import (
 	"net/http"
 	"strings"

-	"go.unistack.org/micro/v3/metadata"
-	rutil "go.unistack.org/micro/v3/util/reflect"
+	"go.unistack.org/micro/v4/metadata"
+	rutil "go.unistack.org/micro/v4/util/reflect"
 )

 func FillRequest(ctx context.Context, req interface{}, opts ...FillRequestOption) error {
@@ -15,39 +15,52 @@ func FillRequest(ctx context.Context, req interface{}, opts ...FillRequestOption
 	for _, o := range opts {
 		o(&options)
 	}
+
 	md, ok := metadata.FromIncomingContext(ctx)
 	if !ok {
 		return nil
 	}

 	for idx := 0; idx < len(options.headers)/2; idx += 2 {
-		k := http.CanonicalHeaderKey(options.headers[idx])
-		v, ok := md[k]
-		if !ok {
+		k := options.headers[idx]
+		v := md.Get(k)
+		if v == nil {
 			continue
 		}
-		if err = rutil.SetFieldByPath(req, v, k); err != nil {
+
+		if len(v) == 1 {
+			err = rutil.SetFieldByPath(req, v[0], k)
+		} else {
+			err = rutil.SetFieldByPath(req, v, k)
+		}
+		if err != nil {
 			return err
 		}
 	}

-	cookies := strings.Split(md["Cookie"], ";")
-	cmd := make(map[string]string, len(cookies))
-	for _, cookie := range cookies {
-		kv := strings.Split(cookie, "=")
-		if len(kv) != 2 {
-			continue
+	cookieVals := md.Get("Cookie")
+	for i := range cookieVals {
+		cookies := strings.Split(cookieVals[i], ";")
+		cmd := make(map[string]string, len(cookies))
+		for _, cookie := range cookies {
+			kv := strings.Split(cookie, "=")
+			if len(kv) != 2 {
+				continue
+			}
+			cmd[strings.TrimSpace(kv[0])] = strings.TrimSpace(kv[1])
 		}
-		cmd[strings.TrimSpace(kv[0])] = strings.TrimSpace(kv[1])
-	}
-	for idx := 0; idx < len(options.cookies)/2; idx += 2 {
-		k := http.CanonicalHeaderKey(options.cookies[idx])
-		v, ok := cmd[k]
-		if !ok {
-			continue
-		}
-		if err = rutil.SetFieldByPath(req, v, k); err != nil {
-			return err
+		for idx := 0; idx < len(options.cookies)/2; idx += 2 {
+			k := http.CanonicalHeaderKey(options.cookies[idx])
+			v, ok := cmd[k]
+
+			if !ok {
+				continue
+			}
+
+			err = rutil.SetFieldByPath(req, v, k)
+			if err != nil {
+				return err
+			}
 		}
 	}

--- a/util_test.go
+++ b/util_test.go
@@ -7,9 +7,9 @@ import (
 	"strings"
 	"testing"

-	"go.unistack.org/micro/v3/metadata"
-	"go.unistack.org/micro/v3/options"
-	"go.unistack.org/micro/v3/server"
+	"go.unistack.org/micro/v4/metadata"
+	"go.unistack.org/micro/v4/options"
+	"go.unistack.org/micro/v4/server"
 )

 func Test_Hook(t *testing.T) {
Author	SHA1	Message	Date
Vasiliy Tolstov	573086694b	handler/meter: add HTTPHandlerFunc method Some checks failed coverage / build (push) Successful in 2m37s Details test / test (push) Failing after 16m22s Details sync / sync (push) Successful in 8s Details Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2025-08-04 21:49:04 +03:00
vtolstov	3992a2bfb2	Apply Code Coverage Badge	2025-05-19 08:54:04 +00:00
pugnack	b5d9fd5764	fix bug with gzip in meter handler (#223 ) All checks were successful coverage / build (push) Successful in 2m1s Details test / test (push) Successful in 4m32s Details	2025-05-19 11:49:35 +03:00
vtolstov	39ad61b34e	Apply Code Coverage Badge	2025-05-13 22:30:35 +00:00
pugnack	1cb2b3c241	changed embedded mutex to private field (#222 ) Some checks failed coverage / build (push) Successful in 3m13s Details test / test (push) Failing after 16m3s Details	2025-05-14 01:26:24 +03:00
pugnack	732b5685fb	update ci (#220 ) All checks were successful sync / sync (push) Successful in 10s Details	2025-05-05 18:01:58 +03:00
pugnack	6cddb5f218	added commit hash check to avoid unnecessary repository cloning (#218 ) All checks were successful sync / sync (push) Successful in 14s Details	2025-05-05 14:53:15 +03:00
Vasiliy Tolstov	dd4578a57d	fixup redis option parsing All checks were successful sync / sync (push) Successful in 17s Details Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2025-05-04 14:59:50 +03:00
Vasiliy Tolstov	c6b72d7a7a	check workflow Some checks failed sync / sync (push) Has been cancelled Details Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2025-05-04 14:41:17 +03:00
pugnack	545e372b82	breaking change: modify API for working with response metadata (#213 ) Some checks failed coverage / build (push) Has been skipped Details test / test (push) Successful in 3m20s Details sync / sync (push) Has been cancelled Details * implement functions to append/get metadata and set/get status code * сhanged behavior to return nil instead of empty metadata for getResponseMetadata() * сhanged work with HTTP headers to use direct array assignment instead of for-range * fix linters * fix meter handler * fix uninitialized response metadata for incoming context * removed a useless test * metrics handler has been fixed to work with compressed data	2025-05-03 12:09:52 +03:00
pugnack	d7ffae7b16	[v4] update ci (#216 ) All checks were successful sync / sync (push) Successful in 25s Details * update ci * disable coverage job && update sync job	2025-05-03 10:40:19 +03:00
Vasiliy Tolstov	8c745c3f74	fixup gzip handling All checks were successful coverage / build (push) Successful in 1m50s Details test / test (push) Successful in 2m49s Details sync / sync (push) Successful in 55s Details Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2025-04-29 15:11:20 +03:00
Vasiliy Tolstov	db910c9ff5	fixup for latest micro Some checks failed coverage / build (push) Failing after 1m7s Details test / test (push) Successful in 4m18s Details sync / sync (push) Successful in 19s Details Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2025-04-29 14:25:28 +03:00
vtolstov	984c6495c6	Apply Code Coverage Badge	2025-04-27 18:50:16 +00:00
Vasiliy Tolstov	7f904d0cc7	improve sync Some checks failed coverage / build (push) Successful in 5m57s Details test / test (push) Failing after 12m32s Details sync / sync (push) Successful in 7m15s Details Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>	2025-04-27 21:38:39 +03:00
Evstigneev Denis	76bf0520c0	prepare_v4 (#199 ) All checks were successful test / test (push) Successful in 1m56s Details move to v4 micro Co-authored-by: Vasiliy Tolstov <v.tolstov@unistack.org> Reviewed-on: #199 Co-authored-by: Evstigneev Denis <danteevstigneev@yandex.ru> Co-committed-by: Evstigneev Denis <danteevstigneev@yandex.ru>	2025-03-02 12:33:55 +03:00