17 changed files with 408 additions and 537 deletions
--- a/.github/workflows/autoapprove.yml
+++ b/.github/workflows/autoapprove.yml
@ -1,20 +0,0 @@
-name: "autoapprove"
-
-on:
-  pull_request_target:
-    types: [assigned, opened, synchronize, reopened]
-
-permissions:
-  pull-requests: write
-  contents: write
-
-jobs:
-  autoapprove:
-    runs-on: ubuntu-latest
-    steps:
-      - name: approve
-        uses: hmarr/auto-approve-action@v3
-        if: github.actor == 'vtolstov' || github.actor == 'dependabot[bot]'
-        id: approve
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/automerge.yml
+++ b/.github/workflows/automerge.yml
@ -1,21 +0,0 @@
-name: "automerge"
-
-on:
-  pull_request_target:
-    types: [assigned, opened, synchronize, reopened]
-
-permissions:
-  pull-requests: write
-  contents: write
-
-jobs:
-  automerge:
-    runs-on: ubuntu-latest
-    if: github.actor == 'vtolstov'
-    steps:
-      - name: merge
-        id: merge
-        run: gh pr merge --auto --merge "$PR_URL"
-        env:
-          PR_URL: ${{github.event.pull_request.html_url}}
-          GITHUB_TOKEN: ${{secrets.TOKEN}}
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@ -3,20 +3,19 @@ on:
 push:
    branches:
    - master
-    - v3
 jobs:
  test:
    name: test
    runs-on: ubuntu-latest
    steps:
    - name: setup
-      uses: actions/setup-go@v3
+      uses: actions/setup-go@v2
      with:
-        go-version: 1.17
+        go-version: 1.16
    - name: checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v2
    - name: cache
-      uses: actions/cache@v3
+      uses: actions/cache@v2
      with:
        path: ~/go/pkg/mod
        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
@ -32,9 +31,9 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
      - name: lint
-        uses: golangci/golangci-lint-action@v3.4.0
+        uses: golangci/golangci-lint-action@v2
        continue-on-error: true
        with:
          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@ -9,7 +9,7 @@
 # the `language` matrix defined below to confirm you have the correct set of
 # supported CodeQL languages.
 #
-name: "codeql"
+name: "CodeQL"

 on:
  workflow_run:
@ -17,16 +17,16 @@ on:
    types:
      - completed
  push:
-    branches: [ master, v3 ]
+    branches: [ master ]
  pull_request:
    # The branches below must be a subset of the branches above
-    branches: [ master, v3 ]
+    branches: [ master ]
  schedule:
    - cron: '34 1 * * 0'

 jobs:
  analyze:
-    name: analyze
+    name: Analyze
    runs-on: ubuntu-latest
    permissions:
      actions: read
@ -42,15 +42,12 @@ jobs:
        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed

    steps:
-    - name: checkout
-      uses: actions/checkout@v3
-    - name: setup
-      uses: actions/setup-go@v3
-      with:
-        go-version: 1.17
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
    # Initializes the CodeQL tools for scanning.
-    - name: init
-      uses: github/codeql-action/init@v2
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
      with:
        languages: ${{ matrix.language }}
        # If you wish to specify custom queries, you can do so here or in a config file.
@ -60,8 +57,8 @@ jobs:

    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: autobuild
-      uses: github/codeql-action/autobuild@v2
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1

    # ℹ️ Command-line programs to run using the OS shell.
    # 📚 https://git.io/JvXDl
@ -74,5 +71,5 @@ jobs:
    #   make bootstrap
    #   make release

-    - name: analyze
-      uses: github/codeql-action/analyze@v2
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1
--- a/.github/workflows/dependabot-automerge.yml
+++ b/.github/workflows/dependabot-automerge.yml
@ -1,27 +1,66 @@
-name: "dependabot-automerge"
+name: "prautomerge"

 on:
-  pull_request_target:
-    types: [assigned, opened, synchronize, reopened]
+  workflow_run:
+    workflows: ["prbuild"]
+    types:
+      - completed

 permissions:
-  pull-requests: write
  contents: write
+  pull-requests: write

 jobs:
-  automerge:
+  Dependabot-Automerge:
    runs-on: ubuntu-latest
-    if: github.actor == 'dependabot[bot]'
+    # Contains workaround to execute if dependabot updates the PR by checking for the base branch in the linked PR
+    # The the github.event.workflow_run.event value is 'push' and not 'pull_request'
+    # dont work with multiple workflows when last returns success
+    if: >-
+      github.event.workflow_run.conclusion == 'success'
+      && github.actor == 'dependabot[bot]'
+      && github.event.sender.login == 'dependabot[bot]'
+      && github.event.sender.type == 'Bot'
+      && (github.event.workflow_run.event == 'pull_request'
+          || (github.event.workflow_run.event == 'push' && github.event.workflow_run.pull_requests[0].base.ref == github.event.repository.default_branch ))
    steps:
-      - name: metadata
-        id: metadata
-        uses: dependabot/fetch-metadata@v1.3.6
+      - name: Approve Changes and Merge changes if label 'dependencies' is set
+        uses: actions/github-script@v4
        with:
-          github-token: "${{ secrets.TOKEN }}"
-      - name: merge
-        id: merge
-        if: ${{contains(steps.metadata.outputs.dependency-names, 'go.unistack.org')}}
-        run: gh pr merge --auto --merge "$PR_URL"
-        env:
-          PR_URL: ${{github.event.pull_request.html_url}}
-          GITHUB_TOKEN: ${{secrets.TOKEN}}
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            console.log(context.payload.workflow_run);
+            
+            var labelNames = await github.paginate(
+              github.issues.listLabelsOnIssue,
+              {
+                repo: context.repo.repo,
+                owner: context.repo.owner,
+                issue_number: context.payload.workflow_run.pull_requests[0].number,
+              },
+              (response) => response.data.map(
+                (label) => label.name
+              )
+            );
+
+            console.log(labelNames);
+
+            if (labelNames.includes('dependencies')) {
+              console.log('Found label');
+
+              await github.pulls.createReview({
+                repo: context.repo.repo,
+                owner: context.repo.owner,
+                pull_number: context.payload.workflow_run.pull_requests[0].number,
+                event: 'APPROVE'
+              });
+              console.log('Approved PR');
+
+              await github.pulls.merge({
+                repo: context.repo.repo,
+                owner: context.repo.owner,
+                pull_number: context.payload.workflow_run.pull_requests[0].number,
+              });
+
+              console.log('Merged PR');
+            }
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@ -3,20 +3,19 @@ on:
  pull_request:
    branches:
    - master
-    - v3
 jobs:
  test:
    name: test
    runs-on: ubuntu-latest
    steps:
    - name: setup
-      uses: actions/setup-go@v3
+      uses: actions/setup-go@v2
      with:
-        go-version: 1.17
+        go-version: 1.16
    - name: checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v2
    - name: cache
-      uses: actions/cache@v3
+      uses: actions/cache@v2
      with:
        path: ~/go/pkg/mod
        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
@ -32,9 +31,9 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
      - name: lint
-        uses: golangci/golangci-lint-action@v3.4.0
+        uses: golangci/golangci-lint-action@v2
        continue-on-error: true
        with:
          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
--- a/README.md
+++ b/README.md
@ -5,14 +5,14 @@ This plugin is a http client for micro.
 ## Overview

 The http client wraps `net/http` to provide a robust micro client with service discovery, load balancing and streaming. 
-It complies with the [micro.Client](https://godoc.org/go.unistack.org/micro-client-http/v4#Client) interface.
+It complies with the [micro.Client](https://godoc.org/github.com/unistack-org/micro-client-http#Client) interface.

 ## Usage

 ### Use directly

 ```go
-import "go.unistack.org/micro-client-http/v4"
+import "github.com/unistack-org/micro-client-http"

 service := micro.NewService(
 	micro.Name("my.service"),
--- a/go.mod
+++ b/go.mod
@ -1,5 +1,5 @@
-module go.unistack.org/micro-client-http/v4
+module github.com/unistack-org/micro-client-http/v3

-go 1.19
+go 1.16

-require go.unistack.org/micro/v4 v4.0.18
+require github.com/unistack-org/micro/v3 v3.7.1
--- a/go.sum
+++ b/go.sum
@ -1,6 +1,34 @@
-go.unistack.org/micro/v4 v4.0.1 h1:xo1IxbVfgh8i0eY0VeYa3cbb13u5n/Mxnp3FOgWD4Jo=
-go.unistack.org/micro/v4 v4.0.1/go.mod h1:p/J5UcSJjfHsWGT31uKoghQ5rUQZzQJBAFy+Z4+ZVMs=
-go.unistack.org/micro/v4 v4.0.6 h1:YFWvTh3VwyOd6NHYTQcf47n2TF5+p/EhpnbuBQX3qhk=
-go.unistack.org/micro/v4 v4.0.6/go.mod h1:bVEYTlPi0EsdgZZt311bIroDg9ict7ky3C87dSCCAGk=
-go.unistack.org/micro/v4 v4.0.18 h1:b7WFwem8Nz1xBrRg5FeLnm9CE5gJseHyf9j0BhkiXW0=
-go.unistack.org/micro/v4 v4.0.18/go.mod h1:5+da5r835gP0WnNZbYUJDCvWpJ9Xc3IEGyp62e8o8R4=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/ef-ds/deque v1.0.4/go.mod h1:gXDnTC3yqvBcHbq2lcExjtAcVrOnJCbMcZXmuj8Z4tg=
+github.com/golang-jwt/jwt/v4 v4.0.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg=
+github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
+github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/imdario/mergo v0.3.12/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
+github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/silas/dag v0.0.0-20210121180416-41cf55125c34/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/unistack-org/micro-proto v0.0.9 h1:KrWLS4FUX7UAWNAilQf70uad6ZPf/0EudeddCXllRVc=
+github.com/unistack-org/micro-proto v0.0.9/go.mod h1:Cckwmzd89gvS7ThxzZp9kQR/EOdksFQcsTAtDDyKwrg=
+github.com/unistack-org/micro/v3 v3.7.1 h1:gjCon1U8i9upNgw9+iEgbZh2LCeBizDYotQ+THHV0lo=
+github.com/unistack-org/micro/v3 v3.7.1/go.mod h1:gBoY6gvzeFiJTZ4FgDttGNSs4Y1+1PRg2cV1yTRMSlg=
+golang.org/x/net v0.0.0-20210510120150-4163338589ed/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
+google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/http.go
+++ b/http.go
@ -1,5 +1,5 @@
 // Package http provides a http client
-package http // import "go.unistack.org/micro-client-http/v4"
+package http

 import (
 	"bufio"
@ -10,18 +10,16 @@ import (
 	"net"
 	"net/http"
 	"net/url"
+	"os"
 	"strings"
 	"sync"
 	"time"

-	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v4/logger"
-	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v4/options"
-	"go.unistack.org/micro/v4/selector"
-	rutil "go.unistack.org/micro/v4/util/reflect"
+	"github.com/unistack-org/micro/v3/broker"
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/codec"
+	"github.com/unistack-org/micro/v3/errors"
+	"github.com/unistack-org/micro/v3/metadata"
 )

 var DefaultContentType = "application/json"
@ -40,9 +38,8 @@ type httpClient struct {
 	init bool
 }

-func newRequest(ctx context.Context, log logger.Logger, addr string, req client.Request, ct string, cf codec.Codec, msg interface{}, opts client.CallOptions) (*http.Request, error) {
+func newRequest(ctx context.Context, addr string, req client.Request, ct string, cf codec.Codec, msg interface{}, opts client.CallOptions) (*http.Request, error) {
 	var tags []string
-	var parameters map[string]map[string]string
 	scheme := "http"
 	method := http.MethodPost
 	body := "*" // as like google api http annotation
@ -58,7 +55,6 @@ func newRequest(ctx context.Context, log logger.Logger, addr string, req client.
 		u = &url.URL{Scheme: scheme, Path: path, Host: host}
 	}

-	// nolint: nestif
 	if opts.Context != nil {
 		if m, ok := opts.Context.Value(methodKey{}).(string); ok {
 			method = m
@ -72,32 +68,6 @@ func newRequest(ctx context.Context, log logger.Logger, addr string, req client.
 		if t, ok := opts.Context.Value(structTagsKey{}).([]string); ok && len(t) > 0 {
 			tags = t
 		}
-		if k, ok := opts.Context.Value(headerKey{}).([]string); ok && len(k) > 0 {
-			if parameters == nil {
-				parameters = make(map[string]map[string]string)
-			}
-			m, ok := parameters["header"]
-			if !ok {
-				m = make(map[string]string)
-				parameters["header"] = m
-			}
-			for idx := 0; idx < len(k)/2; idx += 2 {
-				m[k[idx]] = k[idx+1]
-			}
-		}
-		if k, ok := opts.Context.Value(cookieKey{}).([]string); ok && len(k) > 0 {
-			if parameters == nil {
-				parameters = make(map[string]map[string]string)
-			}
-			m, ok := parameters["cookie"]
-			if !ok {
-				m = make(map[string]string)
-				parameters["cookie"] = m
-			}
-			for idx := 0; idx < len(k)/2; idx += 2 {
-				m[k[idx]] = k[idx+1]
-			}
-		}
 	}

 	if len(tags) == 0 {
@ -120,9 +90,9 @@ func newRequest(ctx context.Context, log logger.Logger, addr string, req client.

 	var nmsg interface{}
 	if len(u.Query()) > 0 {
-		path, nmsg, err = newPathRequest(u.Path+"?"+u.RawQuery, method, body, msg, tags, parameters)
+		path, nmsg, err = newPathRequest(u.Path+"?"+u.RawQuery, method, body, msg, tags)
 	} else {
-		path, nmsg, err = newPathRequest(u.Path, method, body, msg, tags, parameters)
+		path, nmsg, err = newPathRequest(u.Path, method, body, msg, tags)
 	}

 	if err != nil {
@ -134,64 +104,6 @@ func newRequest(ctx context.Context, log logger.Logger, addr string, req client.
 		return nil, errors.BadRequest("go.micro.client", err.Error())
 	}

-	var cookies []*http.Cookie
-	header := make(http.Header)
-	if opts.Context != nil {
-		if md, ok := opts.Context.Value(metadataKey{}).(metadata.Metadata); ok {
-			for k, v := range md {
-				header[k] = v
-			}
-		}
-	}
-	if opts.AuthToken != "" {
-		header.Set(metadata.HeaderAuthorization, opts.AuthToken)
-	}
-	if opts.RequestMetadata != nil {
-		for k, v := range opts.RequestMetadata {
-			header[k] = v
-		}
-	}
-
-	if md, ok := metadata.FromOutgoingContext(ctx); ok {
-		for k, v := range md {
-			header[k] = v
-		}
-	}
-
-	// set timeout in nanoseconds
-	if opts.StreamTimeout > time.Duration(0) {
-		header.Set(metadata.HeaderTimeout, fmt.Sprintf("%d", opts.StreamTimeout))
-	}
-	if opts.RequestTimeout > time.Duration(0) {
-		header.Set(metadata.HeaderTimeout, fmt.Sprintf("%d", opts.RequestTimeout))
-	}
-
-	// set the content type for the request
-	header.Set(metadata.HeaderContentType, ct)
-	var v interface{}
-
-	for km, vm := range parameters {
-		for k, required := range vm {
-			v, err = rutil.StructFieldByPath(msg, k)
-			if err != nil {
-				return nil, errors.BadRequest("go.micro.client", err.Error())
-			}
-			if rutil.IsZero(v) {
-				if required == "true" {
-					return nil, errors.BadRequest("go.micro.client", fmt.Sprintf("required field %s not set", k))
-				}
-				continue
-			}
-
-			switch km {
-			case "header":
-				header.Set(k, fmt.Sprintf("%v", v))
-			case "cookie":
-				cookies = append(cookies, &http.Cookie{Name: k, Value: fmt.Sprintf("%v", v)})
-			}
-		}
-	}
-
 	b, err := cf.Marshal(nmsg)
 	if err != nil {
 		return nil, errors.BadRequest("go.micro.client", err.Error())
@ -201,7 +113,6 @@ func newRequest(ctx context.Context, log logger.Logger, addr string, req client.
 	if len(b) > 0 {
 		hreq, err = http.NewRequestWithContext(ctx, method, u.String(), ioutil.NopCloser(bytes.NewBuffer(b)))
 		hreq.ContentLength = int64(len(b))
-		header.Set("Content-Length", fmt.Sprintf("%d", hreq.ContentLength))
 	} else {
 		hreq, err = http.NewRequestWithContext(ctx, method, u.String(), nil)
 	}
@ -210,15 +121,37 @@ func newRequest(ctx context.Context, log logger.Logger, addr string, req client.
 		return nil, errors.BadRequest("go.micro.client", err.Error())
 	}

-	hreq.Header = header
-	for _, cookie := range cookies {
-		hreq.AddCookie(cookie)
+	header := make(http.Header)
+
+	if opts.Context != nil {
+		if md, ok := opts.Context.Value(metadataKey{}).(metadata.Metadata); ok {
+			for k, v := range md {
+				header.Set(k, v)
+			}
+		}
 	}

-	if log.V(logger.DebugLevel) {
-		log.Debug(ctx, fmt.Sprintf("request %s to %s with headers %v body %s", method, u.String(), hreq.Header, b))
+	if opts.AuthToken != "" {
+		hreq.Header.Set(metadata.HeaderAuthorization, opts.AuthToken)
 	}

+	if md, ok := metadata.FromOutgoingContext(ctx); ok {
+		for k, v := range md {
+			hreq.Header.Set(k, v)
+		}
+	}
+
+	// set timeout in nanoseconds
+	if opts.StreamTimeout > time.Duration(0) {
+		hreq.Header.Set(metadata.HeaderTimeout, fmt.Sprintf("%d", opts.StreamTimeout))
+	}
+	if opts.RequestTimeout > time.Duration(0) {
+		hreq.Header.Set(metadata.HeaderTimeout, fmt.Sprintf("%d", opts.RequestTimeout))
+	}
+
+	// set the content type for the request
+	hreq.Header.Set(metadata.HeaderContentType, ct)
+
 	return hreq, nil
 }

@ -230,9 +163,9 @@ func (h *httpClient) call(ctx context.Context, addr string, req client.Request,

 	cf, err := h.newCodec(ct)
 	if err != nil {
-		return errors.BadRequest("go.micro.client", err.Error())
+		return errors.InternalServerError("go.micro.client", err.Error())
 	}
-	hreq, err := newRequest(ctx, h.opts.Logger, addr, req, ct, cf, req.Body(), opts)
+	hreq, err := newRequest(ctx, addr, req, ct, cf, req.Body(), opts)
 	if err != nil {
 		return err
 	}
@ -267,7 +200,7 @@ func (h *httpClient) stream(ctx context.Context, addr string, req client.Request
 	// get codec
 	cf, err := h.newCodec(ct)
 	if err != nil {
-		return nil, errors.BadRequest("go.micro.client", err.Error())
+		return nil, errors.InternalServerError("go.micro.client", err.Error())
 	}

 	cc, err := (h.httpcli.Transport).(*http.Transport).DialContext(ctx, "tcp", addr)
@ -277,7 +210,6 @@ func (h *httpClient) stream(ctx context.Context, addr string, req client.Request

 	return &httpStream{
 		address: addr,
-		logger:  h.opts.Logger,
 		context: ctx,
 		closed:  make(chan bool),
 		opts:    opts,
@ -304,7 +236,7 @@ func (h *httpClient) newCodec(ct string) (codec.Codec, error) {
 	return nil, codec.ErrUnknownContentType
 }

-func (h *httpClient) Init(opts ...options.Option) error {
+func (h *httpClient) Init(opts ...client.Option) error {
 	if len(opts) == 0 && h.init {
 		return nil
 	}
@ -312,6 +244,9 @@ func (h *httpClient) Init(opts ...options.Option) error {
 		o(&h.opts)
 	}

+	if err := h.opts.Broker.Init(); err != nil {
+		return err
+	}
 	if err := h.opts.Tracer.Init(); err != nil {
 		return err
 	}
@ -324,6 +259,9 @@ func (h *httpClient) Init(opts ...options.Option) error {
 	if err := h.opts.Meter.Init(); err != nil {
 		return err
 	}
+	if err := h.opts.Transport.Init(); err != nil {
+		return err
+	}

 	return nil
 }
@ -332,11 +270,15 @@ func (h *httpClient) Options() client.Options {
 	return h.opts
 }

-func (h *httpClient) NewRequest(service, method string, req interface{}, opts ...options.Option) client.Request {
+func (h *httpClient) NewMessage(topic string, msg interface{}, opts ...client.MessageOption) client.Message {
+	return newHTTPMessage(topic, msg, h.opts.ContentType, opts...)
+}
+
+func (h *httpClient) NewRequest(service, method string, req interface{}, opts ...client.RequestOption) client.Request {
 	return newHTTPRequest(service, method, req, h.opts.ContentType, opts...)
 }

-func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...options.Option) error {
+func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
 	// make a copy of call opts
 	callOpts := h.opts.CallOptions
 	for _, opt := range opts {
@ -353,9 +295,8 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 	} else {
 		// got a deadline so no need to setup context
 		// but we need to set the timeout we pass along
-		if err := options.Set(&callOpts, time.Until(d), ".RequestTimeout"); err != nil {
-			return errors.New("go.micro.client", fmt.Sprintf("%v", err.Error()), 400)
-		}
+		opt := client.WithRequestTimeout(time.Until(d))
+		opt(&callOpts)
 	}

 	// should we noop right here?
@ -369,9 +310,9 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 	hcall := h.call

 	// wrap the call in reverse
-	//for i := len(callOpts.CallWrappers); i > 0; i-- {
-	//	hcall = callOpts.CallWrappers[i-1](hcall)
-	//}
+	for i := len(callOpts.CallWrappers); i > 0; i-- {
+		hcall = callOpts.CallWrappers[i-1](hcall)
+	}

 	// use the router passed as a call option, or fallback to the rpc clients router
 	if callOpts.Router == nil {
@ -388,7 +329,18 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 		callOpts.Address = []string{h.opts.Proxy}
 	}

-	var next selector.Next
+	// lookup the route to send the reques to
+	// TODO apply any filtering here
+	routes, err := h.opts.Lookup(ctx, req, callOpts)
+	if err != nil {
+		return errors.InternalServerError("go.micro.client", err.Error())
+	}
+
+	// balance the list of nodes
+	next, err := callOpts.Selector.Select(routes)
+	if err != nil {
+		return err
+	}

 	// return errors.New("go.micro.client", "request timeout", 408)
 	call := func(i int) error {
@ -403,22 +355,6 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 			time.Sleep(t)
 		}

-		if next == nil {
-			var routes []string
-			// lookup the route to send the reques to
-			// TODO apply any filtering here
-			routes, err = h.opts.Lookup(ctx, req, callOpts)
-			if err != nil {
-				return errors.InternalServerError("go.micro.client", err.Error())
-			}
-
-			// balance the list of nodes
-			next, err = callOpts.Selector.Select(routes)
-			if err != nil {
-				return err
-			}
-		}
-
 		node := next()

 		// make the call
@ -469,9 +405,7 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 	return gerr
 }

-func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...options.Option) (client.Stream, error) {
-	var err error
-
+func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...client.CallOption) (client.Stream, error) {
 	// make a copy of call opts
 	callOpts := h.opts.CallOptions
 	for _, o := range opts {
@ -488,9 +422,8 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...opt
 	} else {
 		// got a deadline so no need to setup context
 		// but we need to set the timeout we pass along
-		if err = options.Set(&callOpts, time.Until(d), ".StreamTimeout"); err != nil {
-			return nil, errors.New("go.micro.client", fmt.Sprintf("%v", err.Error()), 400)
-		}
+		o := client.WithStreamTimeout(time.Until(d))
+		o(&callOpts)
 	}

 	// should we noop right here?
@ -524,7 +457,18 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...opt
 		callOpts.Address = []string{h.opts.Proxy}
 	}

-	var next selector.Next
+	// lookup the route to send the reques to
+	// TODO apply any filtering here
+	routes, err := h.opts.Lookup(ctx, req, callOpts)
+	if err != nil {
+		return nil, errors.InternalServerError("go.micro.client", err.Error())
+	}
+
+	// balance the list of nodes
+	next, err := callOpts.Selector.Select(routes)
+	if err != nil {
+		return nil, err
+	}

 	call := func(i int) (client.Stream, error) {
 		// call backoff first. Someone may want an initial start delay
@ -538,22 +482,6 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...opt
 			time.Sleep(t)
 		}

-		if next == nil {
-			var routes []string
-			// lookup the route to send the reques to
-			// TODO apply any filtering here
-			routes, err = h.opts.Lookup(ctx, req, callOpts)
-			if err != nil {
-				return nil, errors.InternalServerError("go.micro.client", err.Error())
-			}
-
-			// balance the list of nodes
-			next, err = callOpts.Selector.Select(routes)
-			if err != nil {
-				return nil, err
-			}
-		}
-
 		node := next()

 		stream, cerr := h.stream(ctx, node, req, callOpts)
@ -610,6 +538,68 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...opt
 	return nil, grr
 }

+func (h *httpClient) BatchPublish(ctx context.Context, p []client.Message, opts ...client.PublishOption) error {
+	return h.publish(ctx, p, opts...)
+}
+
+func (h *httpClient) Publish(ctx context.Context, p client.Message, opts ...client.PublishOption) error {
+	return h.publish(ctx, []client.Message{p}, opts...)
+}
+
+func (h *httpClient) publish(ctx context.Context, ps []client.Message, opts ...client.PublishOption) error {
+	options := client.NewPublishOptions(opts...)
+
+	// get proxy
+	exchange := ""
+	if v, ok := os.LookupEnv("MICRO_PROXY"); ok {
+		exchange = v
+	}
+
+	omd, ok := metadata.FromOutgoingContext(ctx)
+	if !ok {
+		omd = metadata.New(2)
+	}
+
+	msgs := make([]*broker.Message, 0, len(ps))
+
+	for _, p := range ps {
+		md := metadata.Copy(omd)
+		md[metadata.HeaderContentType] = p.ContentType()
+		md[metadata.HeaderTopic] = p.Topic()
+
+		cf, err := h.newCodec(p.ContentType())
+		if err != nil {
+			return errors.InternalServerError("go.micro.client", err.Error())
+		}
+
+		var body []byte
+
+		// passed in raw data
+		if d, ok := p.Payload().(*codec.Frame); ok {
+			body = d.Data
+		} else {
+			b := bytes.NewBuffer(nil)
+			if err := cf.Write(b, &codec.Message{Type: codec.Event}, p.Payload()); err != nil {
+				return errors.InternalServerError("go.micro.client", err.Error())
+			}
+			body = b.Bytes()
+		}
+
+		topic := p.Topic()
+		if len(exchange) > 0 {
+			topic = exchange
+		}
+
+		md.Set(metadata.HeaderTopic, topic)
+		msgs = append(msgs, &broker.Message{Header: md, Body: body})
+	}
+
+	return h.opts.Broker.BatchPublish(ctx, msgs,
+		broker.PublishContext(ctx),
+		broker.PublishBodyOnly(options.BodyOnly),
+	)
+}
+
 func (h *httpClient) String() string {
 	return "http"
 }
@ -618,7 +608,7 @@ func (h *httpClient) Name() string {
 	return h.opts.Name
 }

-func NewClient(opts ...options.Option) client.Client {
+func NewClient(opts ...client.Option) client.Client {
 	options := client.NewOptions(opts...)

 	if len(options.ContentType) == 0 {
@ -629,21 +619,11 @@ func NewClient(opts ...options.Option) client.Client {
 		opts: options,
 	}

-	var dialer func(context.Context, string) (net.Conn, error)
-	if v, ok := options.Context.Value(httpDialerKey{}).(*net.Dialer); ok {
-		dialer = func(ctx context.Context, addr string) (net.Conn, error) {
-			return v.DialContext(ctx, "tcp", addr)
-		}
-	}
-	if options.ContextDialer != nil {
-		dialer = options.ContextDialer
-	}
-	if dialer == nil {
-		dialer = func(ctx context.Context, addr string) (net.Conn, error) {
-			return (&net.Dialer{
+	dialer, ok := options.Context.Value(httpDialerKey{}).(*net.Dialer)
+	if !ok {
+		dialer = &net.Dialer{
 			Timeout:   30 * time.Second,
 			KeepAlive: 30 * time.Second,
-			}).DialContext(ctx, "tcp", addr)
 		}
 	}

@ -653,9 +633,7 @@ func NewClient(opts ...options.Option) client.Client {
 		// TODO customTransport := http.DefaultTransport.(*http.Transport).Clone()
 		tr := &http.Transport{
 			Proxy:                 http.ProxyFromEnvironment,
-			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-				return dialer(ctx, addr)
-			},
+			DialContext:           dialer.DialContext,
 			ForceAttemptHTTP2:     true,
 			MaxConnsPerHost:       100,
 			MaxIdleConns:          20,
@ -668,5 +646,10 @@ func NewClient(opts ...options.Option) client.Client {
 	}
 	c := client.Client(rc)

+	// wrap in reverse
+	for i := len(options.Wrappers); i > 0; i-- {
+		c = options.Wrappers[i-1](c)
+	}
+
 	return c
 }
--- a/http_test.go
+++ b/http_test.go
@ -9,39 +9,13 @@ import (
 type Request struct {
 	Name   string `json:"name"`
 	Field1 string `json:"field1"`
-	ClientID string
 	Field2 string
 	Field3 int64
 }

-func TestPathWithHeader(t *testing.T) {
-	req := &Request{Name: "vtolstov", Field1: "field1", ClientID: "1234567890"}
-	p, m, err := newPathRequest(
-		"/api/v1/test?Name={name}&Field1={field1}",
-		"POST",
-		"*",
-		req,
-		nil,
-		map[string]map[string]string{"header": {"ClientID": "true"}},
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-	u, err := url.Parse(p)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if m != nil {
-		t.Fatal("new struct must be nil")
-	}
-	if u.Query().Get("Name") != "vtolstov" || u.Query().Get("Field1") != "field1" {
-		t.Fatalf("invalid values %v", u.Query())
-	}
-}
-
 func TestPathValues(t *testing.T) {
 	req := &Request{Name: "vtolstov", Field1: "field1"}
-	p, m, err := newPathRequest("/api/v1/test?Name={name}&Field1={field1}", "POST", "*", req, nil, nil)
+	p, m, err := newPathRequest("/api/v1/test?Name={name}&Field1={field1}", "POST", "*", req, nil)
 	if err != nil {
 		t.Fatal(err)
 	}
@ -57,7 +31,7 @@ func TestPathValues(t *testing.T) {

 func TestValidPath(t *testing.T) {
 	req := &Request{Name: "vtolstov", Field1: "field1", Field2: "field2", Field3: 10}
-	p, m, err := newPathRequest("/api/v1/{name}/list", "GET", "", req, nil, nil)
+	p, m, err := newPathRequest("/api/v1/{name}/list", "GET", "", req, nil)
 	if err != nil {
 		t.Fatal(err)
 	}
@ -74,8 +48,9 @@ func TestValidPath(t *testing.T) {

 func TestInvalidPath(t *testing.T) {
 	req := &Request{Name: "vtolstov", Field1: "field1", Field2: "field2", Field3: 10}
-	_, _, err := newPathRequest("/api/v1/{xname}/list", "GET", "", req, nil, nil)
+	p, m, err := newPathRequest("/api/v1/{xname}/list", "GET", "", req, nil)
 	if err == nil {
-		t.Fatal("path param must not be filled")
+		t.Fatalf("path param must not be filled")
 	}
+	_, _ = p, m
 }
--- a/message.go
+++ b/message.go
@ -0,0 +1,36 @@
+package http
+
+import (
+	"github.com/unistack-org/micro/v3/client"
+)
+
+type httpMessage struct {
+	payload     interface{}
+	topic       string
+	contentType string
+}
+
+func newHTTPMessage(topic string, payload interface{}, contentType string, opts ...client.MessageOption) client.Message {
+	options := client.NewMessageOptions(opts...)
+	if len(options.ContentType) == 0 {
+		options.ContentType = contentType
+	}
+
+	return &httpMessage{
+		payload:     payload,
+		topic:       topic,
+		contentType: options.ContentType,
+	}
+}
+
+func (h *httpMessage) ContentType() string {
+	return h.contentType
+}
+
+func (h *httpMessage) Topic() string {
+	return h.topic
+}
+
+func (h *httpMessage) Payload() interface{} {
+	return h.payload
+}
--- a/options.go
+++ b/options.go
@ -4,8 +4,8 @@ import (
 	"net"
 	"net/http"

-	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v4/options"
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/metadata"
 )

 var (
@ -29,98 +29,77 @@ var (
 type poolMaxStreams struct{}

 // PoolMaxStreams maximum streams on a connectioin
-func PoolMaxStreams(n int) options.Option {
-	return options.ContextOption(poolMaxStreams{}, n)
+func PoolMaxStreams(n int) client.Option {
+	return client.SetOption(poolMaxStreams{}, n)
 }

 type poolMaxIdle struct{}

 // PoolMaxIdle maximum idle conns of a pool
-func PoolMaxIdle(d int) options.Option {
-	return options.ContextOption(poolMaxIdle{}, d)
+func PoolMaxIdle(d int) client.Option {
+	return client.SetOption(poolMaxIdle{}, d)
 }

 type maxRecvMsgSizeKey struct{}

 // MaxRecvMsgSize set the maximum size of message that client can receive.
-func MaxRecvMsgSize(s int) options.Option {
-	return options.ContextOption(maxRecvMsgSizeKey{}, s)
+func MaxRecvMsgSize(s int) client.Option {
+	return client.SetOption(maxRecvMsgSizeKey{}, s)
 }

 type maxSendMsgSizeKey struct{}

 // MaxSendMsgSize set the maximum size of message that client can send.
-func MaxSendMsgSize(s int) options.Option {
-	return options.ContextOption(maxSendMsgSizeKey{}, s)
+func MaxSendMsgSize(s int) client.Option {
+	return client.SetOption(maxSendMsgSizeKey{}, s)
 }

 type httpClientKey struct{}

 // nolint: golint
-// HTTPClient pass http.Client option to client Call
-func HTTPClient(c *http.Client) options.Option {
-	return options.ContextOption(httpClientKey{}, c)
+func HTTPClient(c *http.Client) client.Option {
+	return client.SetOption(httpClientKey{}, c)
 }

 type httpDialerKey struct{}

 // nolint: golint
-// HTTPDialer pass net.Dialer option to client
-func HTTPDialer(d *net.Dialer) options.Option {
-	return options.ContextOption(httpDialerKey{}, d)
+func HTTPDialer(d *net.Dialer) client.Option {
+	return client.SetOption(httpDialerKey{}, d)
 }

 type methodKey struct{}

-// Method pass method option to client Call
-func Method(m string) options.Option {
-	return options.ContextOption(methodKey{}, m)
+func Method(m string) client.CallOption {
+	return client.SetCallOption(methodKey{}, m)
 }

 type pathKey struct{}

-// Path spcecifies path option to client Call
-func Path(p string) options.Option {
-	return options.ContextOption(pathKey{}, p)
+func Path(p string) client.CallOption {
+	return client.SetCallOption(pathKey{}, p)
 }

 type bodyKey struct{}

-// Body specifies body option to client Call
-func Body(b string) options.Option {
-	return options.ContextOption(bodyKey{}, b)
+func Body(b string) client.CallOption {
+	return client.SetCallOption(bodyKey{}, b)
 }

 type errorMapKey struct{}

-func ErrorMap(m map[string]interface{}) options.Option {
-	return options.ContextOption(errorMapKey{}, m)
+func ErrorMap(m map[string]interface{}) client.CallOption {
+	return client.SetCallOption(errorMapKey{}, m)
 }

 type structTagsKey struct{}

-// StructTags pass tags slice option to client Call
-func StructTags(tags []string) options.Option {
-	return options.ContextOption(structTagsKey{}, tags)
+func StructTags(tags []string) client.CallOption {
+	return client.SetCallOption(structTagsKey{}, tags)
 }

 type metadataKey struct{}

-// Metadata pass metadata to client Call
-func Metadata(md metadata.Metadata) options.Option {
-	return options.ContextOption(metadataKey{}, md)
-}
-
-type cookieKey struct{}
-
-// Cookie pass cookie to client Call
-func Cookie(cookies ...string) options.Option {
-	return options.ContextOption(cookieKey{}, cookies)
-}
-
-type headerKey struct{}
-
-// Header pass cookie to client Call
-func Header(headers ...string) options.Option {
-	return options.ContextOption(headerKey{}, headers)
+func Metadata(md metadata.Metadata) client.CallOption {
+	return client.SetCallOption(metadataKey{}, md)
 }
--- a/request.go
+++ b/request.go
@ -1,9 +1,8 @@
 package http

 import (
-	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v4/options"
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/codec"
 )

 type httpRequest struct {
@ -14,7 +13,7 @@ type httpRequest struct {
 	opts        client.RequestOptions
 }

-func newHTTPRequest(service, method string, request interface{}, contentType string, opts ...options.Option) client.Request {
+func newHTTPRequest(service, method string, request interface{}, contentType string, opts ...client.RequestOption) client.Request {
 	options := client.NewRequestOptions(opts...)
 	if len(options.ContentType) == 0 {
 		options.ContentType = contentType
--- a/stream.go
+++ b/stream.go
@ -9,10 +9,9 @@ import (
 	"net/http"
 	"sync"

-	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v4/logger"
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/codec"
+	"github.com/unistack-org/micro/v3/errors"
 )

 // Implements the streamer interface
@ -21,7 +20,6 @@ type httpStream struct {
 	conn    net.Conn
 	cf      codec.Codec
 	context context.Context
-	logger  logger.Logger
 	request client.Request
 	closed  chan bool
 	reader  *bufio.Reader
@ -54,10 +52,6 @@ func (h *httpStream) Response() client.Response {
 	return nil
 }

-func (h *httpStream) SendMsg(msg interface{}) error {
-	return h.Send(msg)
-}
-
 func (h *httpStream) Send(msg interface{}) error {
 	h.Lock()
 	defer h.Unlock()
@ -67,7 +61,7 @@ func (h *httpStream) Send(msg interface{}) error {
 		return errShutdown
 	}

-	hreq, err := newRequest(h.context, h.logger, h.address, h.request, h.ct, h.cf, msg, h.opts)
+	hreq, err := newRequest(h.context, h.address, h.request, h.ct, h.cf, msg, h.opts)
 	if err != nil {
 		return err
 	}
@ -75,10 +69,6 @@ func (h *httpStream) Send(msg interface{}) error {
 	return hreq.Write(h.conn)
 }

-func (h *httpStream) RecvMsg(msg interface{}) error {
-	return h.Recv(msg)
-}
-
 func (h *httpStream) Recv(msg interface{}) error {
 	h.Lock()
 	defer h.Unlock()
@ -94,7 +84,7 @@ func (h *httpStream) Recv(msg interface{}) error {
 	}
 	defer hrsp.Body.Close()

-	return h.parseRsp(h.context, h.logger, hrsp, h.cf, msg, h.opts)
+	return h.parseRsp(h.context, hrsp, h.cf, msg, h.opts)
 }

 func (h *httpStream) Error() error {
@ -103,10 +93,6 @@ func (h *httpStream) Error() error {
 	return h.err
 }

-func (h *httpStream) CloseSend() error {
-	return h.Close()
-}
-
 func (h *httpStream) Close() error {
 	select {
 	case <-h.closed:
@ -117,57 +103,41 @@ func (h *httpStream) Close() error {
 	}
 }

-func (h *httpStream) parseRsp(ctx context.Context, log logger.Logger, hrsp *http.Response, cf codec.Codec, rsp interface{}, opts client.CallOptions) error {
+func (h *httpStream) parseRsp(ctx context.Context, hrsp *http.Response, cf codec.Codec, rsp interface{}, opts client.CallOptions) error {
 	var err error
-	var buf []byte
-
-	// fast path return
-	if hrsp.StatusCode == http.StatusNoContent {
-		return nil
-	}

 	select {
 	case <-ctx.Done():
 		err = ctx.Err()
 	default:
-		if hrsp.Body != nil {
-			buf, err = io.ReadAll(hrsp.Body)
-			if err != nil {
-				if log.V(logger.ErrorLevel) {
-					log.Error(ctx, "failed to read body", err)
-				}
-				return errors.InternalServerError("go.micro.client", string(buf))
-			}
-		}
-
-		if log.V(logger.DebugLevel) {
-			log.Debug(ctx, fmt.Sprintf("response %s with %v", buf, hrsp.Header))
+		// fast path return
+		if hrsp.StatusCode == http.StatusNoContent {
+			return nil
 		}

 		if hrsp.StatusCode < 400 {
-			if err = cf.Unmarshal(buf, rsp); err != nil {
+			if err = cf.ReadBody(hrsp.Body, rsp); err != nil {
 				return errors.InternalServerError("go.micro.client", err.Error())
 			}
 			return nil
 		}

-		var rerr interface{}
 		errmap, ok := opts.Context.Value(errorMapKey{}).(map[string]interface{})
 		if ok && errmap != nil {
-			if rerr, ok = errmap[fmt.Sprintf("%d", hrsp.StatusCode)].(error); !ok {
-				rerr, ok = errmap["default"].(error)
+			if err, ok = errmap[fmt.Sprintf("%d", hrsp.StatusCode)].(error); !ok {
+				err, ok = errmap["default"].(error)
 			}
 		}
-		if !ok || rerr == nil {
+		if !ok || err == nil {
+			buf, cerr := io.ReadAll(hrsp.Body)
+			if cerr != nil {
+				return errors.InternalServerError("go.micro.client", cerr.Error())
+			}
 			return errors.New("go.micro.client", string(buf), int32(hrsp.StatusCode))
 		}

-		if cerr := cf.Unmarshal(buf, rerr); cerr != nil {
-			return errors.InternalServerError("go.micro.client", cerr.Error())
-		}
-
-		if err, ok = rerr.(error); !ok {
-			err = &Error{rerr}
+		if cerr := cf.ReadBody(hrsp.Body, err); cerr != nil {
+			err = errors.InternalServerError("go.micro.client", cerr.Error())
 		}
 	}

--- a/util.go
+++ b/util.go
@ -10,11 +10,10 @@ import (
 	"strings"
 	"sync"

-	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v4/logger"
-	"go.unistack.org/micro/v4/metadata"
-	rutil "go.unistack.org/micro/v4/util/reflect"
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/errors"
+	"github.com/unistack-org/micro/v3/logger"
+	rutil "github.com/unistack-org/micro/v3/util/reflect"
 )

 var (
@ -39,7 +38,7 @@ func GetError(err error) interface{} {
 	return err
 }

-func newPathRequest(path string, method string, body string, msg interface{}, tags []string, parameters map[string]map[string]string) (string, interface{}, error) {
+func newPathRequest(path string, method string, body string, msg interface{}, tags []string) (string, interface{}, error) {
 	// parse via https://github.com/googleapis/googleapis/blob/master/google/api/http.proto definition
 	tpl, err := newTemplate(path)
 	if err != nil {
@ -93,15 +92,7 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 			continue
 		}
 		fld := tmsg.Type().Field(i)
-		// Skip unexported fields.
-		if fld.PkgPath != "" {
-			continue
-		}
-		/* check for empty PkgPath can be replaced with new method IsExported
-		if !fld.IsExported() {
-			continue
-		}
-		*/
+
 		t := &tag{}
 		for _, tn := range tags {
 			ts, ok := fld.Tag.Lookup(tn)
@ -126,18 +117,10 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 			}
 		}

-		cname := t.name
-		if cname == "" {
-			cname = fld.Name
+		if t.name == "" {
 			// fallback to lowercase
 			t.name = strings.ToLower(fld.Name)
 		}
-		if _, ok := parameters["header"][cname]; ok {
-			continue
-		}
-		if _, ok := parameters["cookie"][cname]; ok {
-			continue
-		}

 		if !val.IsValid() || val.IsZero() {
 			continue
@ -148,11 +131,11 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 			switch val.Type().Kind() {
 			case reflect.Slice:
 				for idx := 0; idx < val.Len(); idx++ {
-					values.Add(t.name, getParam(val.Index(idx)))
+					values.Add(t.name, fmt.Sprintf("%v", val.Index(idx).Interface()))
 				}
 				fieldsmapskip[t.name] = struct{}{}
 			default:
-				fieldsmap[t.name] = getParam(val)
+				fieldsmap[t.name] = fmt.Sprintf("%v", val.Interface())
 			}
 		} else if (body == "*" || body == t.name) && method != http.MethodGet {
 			if tnmsg.Field(i).CanSet() {
@ -161,10 +144,10 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 		} else {
 			if val.Type().Kind() == reflect.Slice {
 				for idx := 0; idx < val.Len(); idx++ {
-					values.Add(t.name, getParam(val.Index(idx)))
+					values.Add(t.name, fmt.Sprintf("%v", val.Index(idx).Interface()))
 				}
 			} else {
-				values.Add(t.name, getParam(val))
+				values.Add(t.name, fmt.Sprintf("%v", val.Interface()))
 			}
 		}
 	}
@ -217,21 +200,13 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 		_, _ = b.WriteString(values.Encode())
 	}

-	if rutil.IsZero(nmsg) && !isEmptyStruct(nmsg) {
+	if rutil.IsZero(nmsg) {
 		return b.String(), nil, nil
 	}

 	return b.String(), nmsg, nil
 }

-func isEmptyStruct(v interface{}) bool {
-	val := reflect.ValueOf(v)
-	if val.Kind() == reflect.Ptr {
-		val = val.Elem()
-	}
-	return val.Kind() == reflect.Struct && val.NumField() == 0
-}
-
 func newTemplate(path string) ([]string, error) {
 	if len(path) == 0 || path[0] != '/' {
 		return nil, fmt.Errorf("path must starts with /")
@ -254,55 +229,39 @@ func newTemplate(path string) ([]string, error) {

 func (h *httpClient) parseRsp(ctx context.Context, hrsp *http.Response, rsp interface{}, opts client.CallOptions) error {
 	var err error
-	var buf []byte
-
-	// fast path return
-	if hrsp.StatusCode == http.StatusNoContent {
-		return nil
-	}
-
-	if opts.ResponseMetadata != nil {
-		*opts.ResponseMetadata = metadata.New(len(hrsp.Header))
-		for k, v := range hrsp.Header {
-			opts.ResponseMetadata.Set(k, strings.Join(v, ","))
-		}
-	}

 	select {
 	case <-ctx.Done():
 		err = ctx.Err()
 	default:
+		// fast path return
+		if hrsp.StatusCode == http.StatusNoContent {
+			return nil
+		}
 		ct := DefaultContentType

 		if htype := hrsp.Header.Get("Content-Type"); htype != "" {
 			ct = htype
 		}

+		cf, cerr := h.newCodec(ct)
+		if hrsp.StatusCode >= 400 && cerr != nil {
+			var buf []byte
 			if hrsp.Body != nil {
 				buf, err = io.ReadAll(hrsp.Body)
-			if err != nil {
-				if h.opts.Logger.V(logger.ErrorLevel) {
-					h.opts.Logger.Error(ctx, "failed to read body", err)
-				}
-				return errors.InternalServerError("go.micro.client", string(buf))
+				if err != nil && h.opts.Logger.V(logger.ErrorLevel) {
+					h.opts.Logger.Errorf(ctx, "failed to read body: %v", err)
 				}
 			}
-
-		cf, cerr := h.newCodec(ct)
-		if cerr != nil {
-			if h.opts.Logger.V(logger.DebugLevel) {
-				h.opts.Logger.Debug(ctx, fmt.Sprintf("response with %v unknown content-type %s %s", hrsp.Header, ct, buf))
-			}
+			// response like text/plain or something else, return original error
+			return errors.New("go.micro.client", string(buf), int32(hrsp.StatusCode))
+		} else if cerr != nil {
 			return errors.InternalServerError("go.micro.client", cerr.Error())
 		}

-		if h.opts.Logger.V(logger.DebugLevel) {
-			h.opts.Logger.Debug(ctx, fmt.Sprintf("response %s with %v", buf, hrsp.Header))
-		}
-
 		// succeseful response
 		if hrsp.StatusCode < 400 {
-			if err = cf.Unmarshal(buf, rsp); err != nil {
+			if err = cf.ReadBody(hrsp.Body, rsp); err != nil {
 				return errors.InternalServerError("go.micro.client", err.Error())
 			}
 			return nil
@ -319,10 +278,14 @@ func (h *httpClient) parseRsp(ctx context.Context, hrsp *http.Response, rsp inte
 		}

 		if !ok || rerr == nil {
+			buf, rerr := io.ReadAll(hrsp.Body)
+			if rerr != nil {
+				return errors.InternalServerError("go.micro.client", rerr.Error())
+			}
 			return errors.New("go.micro.client", string(buf), int32(hrsp.StatusCode))
 		}

-		if cerr := cf.Unmarshal(buf, rerr); cerr != nil {
+		if cerr := cf.ReadBody(hrsp.Body, rerr); cerr != nil {
 			return errors.InternalServerError("go.micro.client", cerr.Error())
 		}

@ -339,26 +302,3 @@ type tag struct {
 	key  string
 	name string
 }
-
-func getParam(val reflect.Value) string {
-	var v string
-	switch val.Kind() {
-	case reflect.Ptr:
-		switch reflect.Indirect(val).Type().String() {
-		case
-			"wrapperspb.BoolValue",
-			"wrapperspb.BytesValue",
-			"wrapperspb.DoubleValue",
-			"wrapperspb.FloatValue",
-			"wrapperspb.Int32Value", "wrapperspb.Int64Value",
-			"wrapperspb.StringValue",
-			"wrapperspb.UInt32Value", "wrapperspb.UInt64Value":
-			if eva := reflect.Indirect(val).FieldByName("Value"); eva.IsValid() {
-				v = getParam(eva)
-			}
-		}
-	default:
-		v = fmt.Sprintf("%v", val.Interface())
-	}
-	return v
-}
--- a/util_test.go
+++ b/util_test.go
@ -14,7 +14,7 @@ func TestParsing(t *testing.T) {

 	for _, m := range []string{"POST"} {
 		body := ""
-		path, nmsg, err := newPathRequest("/users/iin/{iin}/push-notifications", m, body, omsg, []string{"protobuf", "json"}, nil)
+		path, nmsg, err := newPathRequest("/users/iin/{iin}/push-notifications", m, body, omsg, []string{"protobuf", "json"})
 		if err != nil {
 			t.Fatal(err)
 		}
@ -44,7 +44,7 @@ func TestNewPathRequest(t *testing.T) {

 	for _, m := range []string{"POST", "PUT", "PATCH", "GET", "DELETE"} {
 		body := ""
-		path, nmsg, err := newPathRequest("/v1/test", m, body, omsg, []string{"protobuf", "json"}, nil)
+		path, nmsg, err := newPathRequest("/v1/test", m, body, omsg, []string{"protobuf", "json"})
 		if err != nil {
 			t.Fatal(err)
 		}
@ -59,38 +59,6 @@ func TestNewPathRequest(t *testing.T) {
 	}
 }

-func TestNewPathRequestWithEmptyBody(t *testing.T) {
-	val := struct{}{}
-	cases := []string{
-		"",
-		"*",
-		"{}",
-		"nil",
-		`{"type": "invalid"}`,
-	}
-
-	for _, body := range cases {
-		for _, m := range []string{"POST", "PUT", "PATCH", "GET", "DELETE"} {
-			path, nmsg, err := newPathRequest("/v1/test", m, body, val, []string{"protobuf", "json"}, nil)
-			if err != nil {
-				t.Fatal(err)
-			}
-			if nmsg == nil {
-				t.Fatalf("invalid path: nil nmsg")
-			}
-
-			u, err := url.Parse(path)
-			if err != nil {
-				t.Fatal(err)
-			}
-			vals := u.Query()
-			if len(vals) != 0 {
-				t.Fatalf("invalid path: %v nmsg: %v", path, nmsg)
-			}
-		}
-	}
-}
-
 func TestNewPathVarRequest(t *testing.T) {
 	type Message struct {
 		Name string `json:"name"`
@ -106,7 +74,7 @@ func TestNewPathVarRequest(t *testing.T) {
 		if m != "GET" {
 			body = "*"
 		}
-		path, nmsg, err := newPathRequest("/v1/test/{val1}", m, body, omsg, []string{"protobuf", "json"}, nil)
+		path, nmsg, err := newPathRequest("/v1/test/{val1}", m, body, omsg, []string{"protobuf", "json"})
 		if err != nil {
 			t.Fatal(err)
 		}