fixup panic

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

.gitignore

@@ -0,0 +1,24 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+bin
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work
+
+# General
+.DS_Store
+.idea
+.vscode

README.md

@@ -9,8 +9,8 @@ to create a HTTP Server that could potentially be used for REST based API servic
 import (
 	"net/http"
 
-	"go.unistack.org/micro/v4/server"
-	httpServer "go.unistack.org/micro-server-http/v4"
+	"github.com/unistack-org/micro/v3/server"
+	httpServer "github.com/unistack-org/micro-server-http"
 )
 
 func main() {
@@ -37,9 +37,9 @@ Or as part of a service
 import (
 	"net/http"
 
-	"go.unistack.org/micro/v4"
-	"go.unistack.org/micro/v4/server"
-	httpServer "go.unistack.org/micro-server-http/v4"
+	"github.com/unistack-org/micro/v3"
+	"github.com/unistack-org/micro/v3/server"
+	httpServer "github.com/unistack-org/micro-server-http"
 )
 
 func main() {

go.mod

@@ -1,16 +1,21 @@
-module go.unistack.org/micro-server-http/v4
+module go.unistack.org/micro-server-http/v3
 
-go 1.19
+go 1.18
 
 require (
-	go.unistack.org/micro-proto/v4 v4.0.0
-	go.unistack.org/micro/v4 v4.0.1
-	golang.org/x/net v0.7.0
+	go.unistack.org/micro-codec-yaml/v3 v3.10.0
+	go.unistack.org/micro-proto/v3 v3.3.1
+	go.unistack.org/micro/v3 v3.10.42
+	golang.org/x/net v0.14.0
 )
 
 require (
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/gnostic v0.6.9 // indirect
-	google.golang.org/protobuf v1.28.1 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20230526203410-71b5a4ffd15e // indirect
+	google.golang.org/grpc v1.57.0 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
 )

go.sum

@@ -10,7 +10,9 @@ github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDk
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
+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 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/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/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
@@ -35,8 +37,9 @@ github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QD
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
 github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
+github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
+github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/google/gnostic v0.6.9 h1:ZK/5VhkoX835RikCHpSUJV9a+S3e1zLh59YnyWeBW+0=
 github.com/google/gnostic v0.6.9/go.mod h1:Nm8234We1lq6iB9OmlgNv3nH91XLLVZHCDayfA3xq+E=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
@@ -44,18 +47,23 @@ github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMyw
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
-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/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
-github.com/kr/pretty v0.2.0 h1:s5hAObm+yFO5uHYt5dYjxi2rXrsnmRpJx4OYvIWUaQs=
+github.com/imdario/mergo v0.3.13/go.mod h1:4lJ1jqUDcsbIECGy0RUJAXNIhg+6ocWgb1ALK2O4oXg=
 github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
+github.com/kr/pretty v0.2.1 h1:Fmg33tUaq4/8ym9TJN1x7sLJnHVwhP33CNkpYV/7rwI=
+github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
+github.com/silas/dag v0.0.0-20211117232152-9d50aa809f35/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
 github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 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=
@@ -65,10 +73,13 @@ github.com/xeipuuv/gojsonpointer v0.0.0-20180127040702-4e3ac2762d5f/go.mod h1:N2
 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=
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
-go.unistack.org/micro-proto/v4 v4.0.0 h1:+TAwKSlx48eLsNO2E2cO0JLE8we1KU2AuWe9Q310FuU=
-go.unistack.org/micro-proto/v4 v4.0.0/go.mod h1:ArmK7o+uFvxSY3dbJhKBBX4Pm1rhWdLEFf3LxBrMtec=
-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-codec-yaml/v3 v3.10.0 h1:cnNiWQZ3F+jsCX9DhEHBdIw8CjBItxb+TrKGGdlQ8F8=
+go.unistack.org/micro-codec-yaml/v3 v3.10.0/go.mod h1:UzwC3QZZ6+PgKSudlGZNLkugXzOFkp3sxhs/CctEwBY=
+go.unistack.org/micro-proto/v3 v3.3.1 h1:nQ0MtWvP2G3QrpOgawVOPhpZZYkq6umTGDqs8FxJYIo=
+go.unistack.org/micro-proto/v3 v3.3.1/go.mod h1:cwRyv8uInM2I7EbU7O8Fx2Ls3N90Uw9UCCcq4olOdfE=
+go.unistack.org/micro/v3 v3.10.14/go.mod h1:uMAc0U/x7dmtICCrblGf0ZLgYegu3VwQAquu+OFCw1Q=
+go.unistack.org/micro/v3 v3.10.42 h1:A0nA6WT6wNq5fyQyzliX70Bj5/SGj5kadLSOySX4hro=
+go.unistack.org/micro/v3 v3.10.42/go.mod h1:CSmEf5ddmft94MyKHnUSMM0W5dpmmTVbgImbgQWV5Ak=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -84,8 +95,8 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.7.0 h1:rJrUqqhjsgNp7KqAIc25s9pZnjU7TUcSY7HcVZjdn1g=
-golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
+golang.org/x/net v0.14.0 h1:BONx9s002vGdD9umnlX1Po8vOZmrgH34qlHcD1MfK14=
+golang.org/x/net v0.14.0/go.mod h1:PpSgVXXLK0OxS0F31C1/tv6XNguvCrnXIDrFMspZIUI=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -100,18 +111,19 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -120,6 +132,8 @@ google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98
 google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
 google.golang.org/genproto v0.0.0-20220107163113-42d7afdf6368/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20230526203410-71b5a4ffd15e h1:NumxXLPfHSndr3wBBdeKiVHjGVFzi9RX2HwwQke94iY=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20230526203410-71b5a4ffd15e/go.mod h1:66JfowdXAEgad5O9NnYcsNPLCPZJD++2L9X0PCMODrA=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
@@ -127,6 +141,8 @@ google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
 google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
+google.golang.org/grpc v1.57.0 h1:kfzNeI/klCGD2YPMUlaGNT3pxvYfga7smW3Vth8Zsiw=
+google.golang.org/grpc v1.57.0/go.mod h1:Sd+9RMTACXwmub0zcNY2c4arhtrbBYD1AUHI/dt16Mo=
 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=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -139,15 +155,22 @@ google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlba
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
 google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
+google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+sigs.k8s.io/yaml v1.3.0 h1:a2VclLzOGrwOHDiV8EfBGhvjHvP46CtW5j6POvhYGGo=
+sigs.k8s.io/yaml v1.3.0/go.mod h1:GeOyir5tyXNByN85N/dRIT9es5UQNerPYEKK56eTBm8=

handler.go

@@ -9,13 +9,13 @@ import (
 	"strings"
 	"sync"
 
-	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v4/logger"
-	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v4/register"
-	"go.unistack.org/micro/v4/server"
-	rhttp "go.unistack.org/micro/v4/util/http"
-	rflutil "go.unistack.org/micro/v4/util/reflect"
+	"go.unistack.org/micro/v3/errors"
+	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v3/metadata"
+	"go.unistack.org/micro/v3/register"
+	"go.unistack.org/micro/v3/server"
+	rhttp "go.unistack.org/micro/v3/util/http"
+	rflutil "go.unistack.org/micro/v3/util/reflect"
 )
 
 var (
@@ -60,13 +60,286 @@ func (h *httpHandler) Options() server.HandlerOptions {
 	return h.opts
 }
 
-func (h *httpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	// check for http.HandlerFunc handlers
-	if ph, _, err := h.pathHandlers.Search(r.Method, r.URL.Path); err == nil {
-		ph.(http.HandlerFunc)(w, r)
-		return
+func (h *Server) HTTPHandlerFunc(handler interface{}) (http.HandlerFunc, error) {
+	if handler == nil {
+		return nil, fmt.Errorf("invalid handler specified: %v", handler)
 	}
 
+	rtype := reflect.TypeOf(handler)
+	if rtype.NumIn() != 3 {
+		return nil, fmt.Errorf("invalid handler, NumIn != 3: %v", rtype.NumIn())
+	}
+
+	argType := rtype.In(1)
+	replyType := rtype.In(2)
+
+	// First arg need not be a pointer.
+	if !isExportedOrBuiltinType(argType) {
+		return nil, fmt.Errorf("invalid handler, argument type not exported: %v", argType)
+	}
+
+	if replyType.Kind() != reflect.Ptr {
+		return nil, fmt.Errorf("invalid handler, reply type not a pointer: %v", replyType)
+	}
+
+	// Reply type must be exported.
+	if !isExportedOrBuiltinType(replyType) {
+		return nil, fmt.Errorf("invalid handler, reply type not exported: %v", replyType)
+	}
+
+	if rtype.NumOut() != 1 {
+		return nil, fmt.Errorf("invalid handler, has wrong number of outs: %v", rtype.NumOut())
+	}
+
+	// The return type of the method must be error.
+	if returnType := rtype.Out(0); returnType != typeOfError {
+		return nil, fmt.Errorf("invalid handler, returns %v not error", returnType.String())
+	}
+
+	return func(w http.ResponseWriter, r *http.Request) {
+		ct := DefaultContentType
+		if htype := r.Header.Get(metadata.HeaderContentType); htype != "" {
+			ct = htype
+		}
+
+		ctx := context.WithValue(r.Context(), rspCodeKey{}, &rspCodeVal{})
+		ctx = context.WithValue(ctx, rspHeaderKey{}, &rspHeaderVal{})
+		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["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
+		if r.TLS != nil {
+			md["TLS"] = "true"
+			md["TLS-ALPN"] = r.TLS.NegotiatedProtocol
+			md["TLS-ServerName"] = r.TLS.ServerName
+		}
+
+		ctx = metadata.NewIncomingContext(ctx, md)
+
+		path := r.URL.Path
+
+		if r.Body != nil {
+			defer r.Body.Close()
+		}
+
+		matches := make(map[string]interface{})
+		var match bool
+		var hldr *patHandler
+		var handler *httpHandler
+
+		for _, shdlr := range h.handlers {
+			hdlr := shdlr.(*httpHandler)
+			fh, mp, err := hdlr.handlers.Search(r.Method, path)
+			if err == nil {
+				match = true
+				for k, v := range mp {
+					matches[k] = v
+				}
+				hldr = fh.(*patHandler)
+				handler = hdlr
+				break
+			} else if err == rhttp.ErrMethodNotAllowed && !h.registerRPC {
+				w.WriteHeader(http.StatusMethodNotAllowed)
+				_, _ = w.Write([]byte("not matching route found"))
+				return
+			}
+		}
+
+		if !match && h.registerRPC {
+			microMethod, mok := md.Get(metadata.HeaderEndpoint)
+			if mok {
+				serviceMethod := strings.Split(microMethod, ".")
+				if len(serviceMethod) == 2 {
+					if shdlr, ok := h.handlers[serviceMethod[0]]; ok {
+						hdlr := shdlr.(*httpHandler)
+						fh, mp, err := hdlr.handlers.Search(http.MethodPost, "/"+microMethod)
+						if err == nil {
+							match = true
+							for k, v := range mp {
+								matches[k] = v
+							}
+							hldr = fh.(*patHandler)
+							handler = hdlr
+						}
+					}
+				}
+			}
+		}
+
+		// get fields from url values
+		if len(r.URL.RawQuery) > 0 {
+			umd, cerr := rflutil.URLMap(r.URL.RawQuery)
+			if cerr != nil {
+				w.WriteHeader(http.StatusInternalServerError)
+				_, _ = w.Write([]byte(cerr.Error()))
+				return
+			}
+			for k, v := range umd {
+				matches[k] = v
+			}
+		}
+
+		cf, err := h.newCodec(ct)
+		if err != nil {
+			w.WriteHeader(http.StatusBadRequest)
+			_, _ = w.Write([]byte(err.Error()))
+			return
+		}
+
+		var argv, replyv reflect.Value
+
+		// Decode the argument value.
+		argIsValue := false // if true, need to indirect before calling.
+		if hldr.mtype.ArgType.Kind() == reflect.Ptr {
+			argv = reflect.New(hldr.mtype.ArgType.Elem())
+		} else {
+			argv = reflect.New(hldr.mtype.ArgType)
+			argIsValue = true
+		}
+
+		if argIsValue {
+			argv = argv.Elem()
+		}
+
+		// reply value
+		replyv = reflect.New(hldr.mtype.ReplyType.Elem())
+
+		function := hldr.mtype.method.Func
+		var returnValues []reflect.Value
+
+		if r.Body != nil {
+			var buf []byte
+			buf, err = io.ReadAll(r.Body)
+			if err != nil && err != io.EOF {
+				h.errorHandler(ctx, handler, w, r, err, http.StatusInternalServerError)
+				return
+			}
+
+			if err = cf.Unmarshal(buf, argv.Interface()); err != nil {
+				h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
+				return
+			}
+		}
+
+		matches = rflutil.FlattenMap(matches)
+		if err = rflutil.Merge(argv.Interface(), matches, rflutil.SliceAppend(true), rflutil.Tags([]string{"protobuf", "json"})); err != nil {
+			h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
+			return
+		}
+
+		hr := &rpcRequest{
+			codec:       cf,
+			service:     handler.sopts.Name,
+			contentType: ct,
+			method:      fmt.Sprintf("%s.%s", hldr.name, hldr.mtype.method.Name),
+			endpoint:    fmt.Sprintf("%s.%s", hldr.name, hldr.mtype.method.Name),
+			payload:     argv.Interface(),
+			header:      md,
+		}
+
+		// define the handler func
+		fn := func(fctx context.Context, req server.Request, rsp interface{}) (err error) {
+			returnValues = function.Call([]reflect.Value{hldr.rcvr, hldr.mtype.prepareContext(fctx), argv, reflect.ValueOf(rsp)})
+
+			// The return value for the method is an error.
+			if rerr := returnValues[0].Interface(); rerr != nil {
+				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
+		}
+
+		// wrap the handler func
+		for i := len(handler.sopts.HdlrWrappers); i > 0; i-- {
+			fn = handler.sopts.HdlrWrappers[i-1](fn)
+		}
+
+		if ct == "application/x-www-form-urlencoded" {
+			cf, err = h.newCodec(DefaultContentType)
+			if err != nil {
+				h.errorHandler(ctx, handler, w, r, err, http.StatusInternalServerError)
+				return
+			}
+			ct = DefaultContentType
+		}
+
+		scode := int(200)
+		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)
+				}
+			}
+		}
+		if nct := w.Header().Get(metadata.HeaderContentType); nct != ct {
+			if cf, err = h.newCodec(nct); err != nil {
+				h.errorHandler(ctx, nil, w, r, err, http.StatusBadRequest)
+				return
+			}
+		}
+
+		var buf []byte
+		if appErr != nil {
+			switch verr := appErr.(type) {
+			case *errors.Error:
+				scode = int(verr.Code)
+				buf, err = cf.Marshal(verr)
+			case *Error:
+				buf, err = cf.Marshal(verr.err)
+			default:
+				buf, err = cf.Marshal(appErr)
+			}
+		} else {
+			buf, err = cf.Marshal(replyv.Interface())
+		}
+
+		if err != nil && handler.sopts.Logger.V(logger.ErrorLevel) {
+			handler.sopts.Logger.Errorf(handler.sopts.Context, "handler err: %v", err)
+			return
+		}
+
+		if nscode := GetRspCode(ctx); nscode != 0 {
+			scode = nscode
+		}
+		w.WriteHeader(scode)
+
+		if _, cerr := w.Write(buf); cerr != nil {
+			handler.sopts.Logger.Errorf(ctx, "write failed: %v", cerr)
+		}
+	}, nil
+}
+
+func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	ct := DefaultContentType
 	if htype := r.Header.Get(metadata.HeaderContentType); htype != "" {
 		ct = htype
@@ -82,17 +355,22 @@ func (h *httpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		md[k] = strings.Join(v, ", ")
 	}
 	md["RemoteAddr"] = r.RemoteAddr
+	if r.TLS != nil {
+		md["Scheme"] = "https"
+	} else {
+		md["Scheme"] = "http"
+	}
 	md["Method"] = r.Method
 	md["URL"] = r.URL.String()
 	md["Proto"] = r.Proto
 	md["ContentLength"] = fmt.Sprintf("%d", r.ContentLength)
-	md["TransferEncoding"] = strings.Join(r.TransferEncoding, ",")
+	if len(r.TransferEncoding) > 0 {
+		md["TransferEncoding"] = strings.Join(r.TransferEncoding, ",")
+	}
 	md["Host"] = r.Host
 	md["RequestURI"] = r.RequestURI
 	ctx = metadata.NewIncomingContext(ctx, md)
 
-	defer r.Body.Close()
-
 	path := r.URL.Path
 	if !strings.HasPrefix(path, "/") {
 		h.errorHandler(ctx, nil, w, r, fmt.Errorf("path must starts with /"), http.StatusBadRequest)
@@ -149,6 +427,11 @@ func (h *httpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 	} else if !match {
+		// check for http.HandlerFunc handlers
+		if ph, _, err := h.pathHandlers.Search(r.Method, r.URL.Path); err == nil {
+			ph.(http.HandlerFunc)(w, r)
+			return
+		}
 		h.errorHandler(ctx, nil, w, r, fmt.Errorf("not matching route found"), http.StatusNotFound)
 		return
 	}
@@ -165,6 +448,10 @@ func (h *httpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
+	if r.Body != nil {
+		defer r.Body.Close()
+	}
+
 	cf, err := h.newCodec(ct)
 	if err != nil {
 		h.errorHandler(ctx, nil, w, r, err, http.StatusBadRequest)
@@ -192,21 +479,26 @@ func (h *httpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	function := hldr.mtype.method.Func
 	var returnValues []reflect.Value
 
-	buf, err := io.ReadAll(r.Body)
-	if err != nil && err != io.EOF {
-		h.errorHandler(ctx, handler, w, r, err, http.StatusInternalServerError)
-		return
+	if r.Body != nil {
+		var buf []byte
+		buf, err = io.ReadAll(r.Body)
+		if err != nil && err != io.EOF {
+			h.errorHandler(ctx, handler, w, r, err, http.StatusInternalServerError)
+			return
+		}
+
+		if err = cf.Unmarshal(buf, argv.Interface()); err != nil {
+			h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
+			return
+		}
 	}
 
-	if err = cf.Unmarshal(buf, argv.Interface()); err != nil {
-		h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
-		return
-	}
-
-	matches = rflutil.FlattenMap(matches)
-	if err = rflutil.Merge(argv.Interface(), matches, rflutil.SliceAppend(true), rflutil.Tags([]string{"protobuf", "json"})); err != nil {
-		h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
-		return
+	if len(matches) > 0 {
+		matches = rflutil.FlattenMap(matches)
+		if err = rflutil.Merge(argv.Interface(), matches, rflutil.SliceAppend(true), rflutil.Tags([]string{"protobuf", "json"})); err != nil {
+			h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
+			return
+		}
 	}
 
 	hr := &rpcRequest{
@@ -279,6 +571,7 @@ func (h *httpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
+	var buf []byte
 	if appErr != nil {
 		switch verr := appErr.(type) {
 		case *errors.Error:

handler/generate.go

@@ -2,11 +2,11 @@ package handler
 
 import (
 	// import required packages
-	_ "go.unistack.org/micro-proto/v4/openapiv3"
+	_ "go.unistack.org/micro-proto/v3/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$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go-micro_out='components=micro|http|server',standalone=false,debug=true,paths=source_relative:./ ./meter/meter.proto"
+//go:generate sh -c "protoc -I./ -I$(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:./ ./meter/meter.proto"
 
-//go:generate sh -c "protoc -I./ -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go-micro_out='components=micro|http|server',standalone=false,debug=true,paths=source_relative:./ ./health/health.proto"
+//go:generate sh -c "protoc -I./ -I$(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"

handler/health/health.go

@@ -1,13 +1,13 @@
-package health // import "go.unistack.org/micro-server-http/v4/handler/health"
+package health // import "go.unistack.org/micro-server-http/v3/handler/health"
 
 import (
 	"context"
 
-	codecpb "go.unistack.org/micro-proto/v4/codec"
-	"go.unistack.org/micro/v4/errors"
+	codecpb "go.unistack.org/micro-proto/v3/codec"
+	"go.unistack.org/micro/v3/errors"
 )
 
-var _ HealthServiceServer = (*Handler)(nil)
+var _ HealthServiceServer = &Handler{}
 
 type Handler struct {
 	opts Options

handler/health/health.proto

@@ -1,7 +1,7 @@
 syntax = "proto3";
 
-package micro.server.http.v4.handler.health;
-option go_package = "go.unistack.org/micro-server-http/v4/handler/health;health";
+package micro.server.http.v3.handler.health;
+option go_package = "go.unistack.org/micro-server-http/v3/handler/health;health";
 
 import "api/annotations.proto";
 import "openapiv3/annotations.proto";

handler/health/health_micro.pb.go

@@ -1,22 +1,22 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
 // versions:
-// - protoc-gen-go-micro v4.0.0
+// - protoc-gen-go-micro v3.10.2
 // - protoc              v3.21.12
-// source: health/health.proto
+// source: health.proto
 
 package health
 
 import (
 	context "context"
-	codec "go.unistack.org/micro-proto/v4/codec"
-	v4 "go.unistack.org/micro-server-http/v4"
+	codec "go.unistack.org/micro-proto/v3/codec"
+	v3 "go.unistack.org/micro-server-http/v3"
 )
 
 var (
 	HealthServiceName = "HealthService"
 )
 var (
-	HealthServiceServerEndpoints = []v4.EndpointMetadata{
+	HealthServiceServerEndpoints = []v3.EndpointMetadata{
 		{
 			Name:   "HealthService.Live",
 			Path:   "/live",

handler/health/health_micro_http.pb.go

@@ -1,14 +1,14 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v4.0.0
-// source: health/health.proto
+// protoc-gen-go-micro version: v3.10.2
+// source: health.proto
 
 package health
 
 import (
 	context "context"
-	codec "go.unistack.org/micro-proto/v4/codec"
-	v4 "go.unistack.org/micro-server-http/v4"
-	server "go.unistack.org/micro/v4/server"
+	codec "go.unistack.org/micro-proto/v3/codec"
+	v3 "go.unistack.org/micro-server-http/v3"
+	server "go.unistack.org/micro/v3/server"
 )
 
 type healthServiceServer struct {
@@ -38,6 +38,6 @@ func RegisterHealthServiceServer(s server.Server, sh HealthServiceServer, opts .
 	}
 	h := &healthServiceServer{sh}
 	var nopts []server.HandlerOption
-	nopts = append(nopts, v4.HandlerEndpoints(HealthServiceServerEndpoints))
+	nopts = append(nopts, v3.HandlerEndpoints(HealthServiceServerEndpoints))
 	return s.Handle(s.NewHandler(&HealthService{h}, append(nopts, opts...)...))
 }

handler/meter/meter.go

@@ -1,16 +1,38 @@
-package meter // import "go.unistack.org/micro-server-http/v4/handler/meter"
+package meter // import "go.unistack.org/micro-server-http/v3/handler/meter"
 
 import (
 	"bytes"
+	"compress/gzip"
 	"context"
+	"io"
+	"strings"
+	"sync"
 
-	codecpb "go.unistack.org/micro-proto/v4/codec"
-	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v4/meter"
+	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"
 )
 
+const (
+	contentEncodingHeader = "Content-Encoding"
+	acceptEncodingHeader  = "Accept-Encoding"
+)
+
+var gzipPool = sync.Pool{
+	New: func() interface{} {
+		return gzip.NewWriter(nil)
+	},
+}
+
+var bufPool = sync.Pool{
+	New: func() interface{} {
+		return bytes.NewBuffer(nil)
+	},
+}
+
 // guard to fail early
-var _ MeterServiceServer = (*Handler)(nil)
+var _ MeterServiceServer = &Handler{}
 
 type Handler struct {
 	opts Options
@@ -56,12 +78,46 @@ func NewHandler(opts ...Option) *Handler {
 }
 
 func (h *Handler) Metrics(ctx context.Context, req *codecpb.Frame, rsp *codecpb.Frame) error {
-	buf := bytes.NewBuffer(nil)
-	if err := h.opts.Meter.Write(buf, h.opts.MeterOptions...); err != nil {
-		return errors.InternalServerError(h.opts.Name, "%v", err)
+	log, ok := logger.FromContext(ctx)
+	if !ok {
+		log = logger.DefaultLogger
+	}
+
+	buf := bufPool.Get().(*bytes.Buffer)
+	defer bufPool.Put(buf)
+	buf.Reset()
+
+	w := io.Writer(buf)
+
+	if md, ok := metadata.FromIncomingContext(ctx); gzipAccepted(md) && ok {
+		md.Set(contentEncodingHeader, "gzip")
+		gz := gzipPool.Get().(*gzip.Writer)
+		defer gzipPool.Put(gz)
+
+		gz.Reset(w)
+		defer gz.Close()
+
+		w = gz
+	}
+
+	if err := h.opts.Meter.Write(w, h.opts.MeterOptions...); err != nil {
+		log.Error(ctx, "http/meter write failed", err)
+		return nil
 	}
 
 	rsp.Data = buf.Bytes()
 
 	return nil
 }
+
+// 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
+}

handler/meter/meter.proto

@@ -1,7 +1,7 @@
 syntax = "proto3";
 
-package micro.server.http.v4.handler.meter;
-option go_package = "go.unistack.org/micro-server-http/v4/handler/meter;meter";
+package micro.server.http.v3.handler.meter;
+option go_package = "go.unistack.org/micro-server-http/v3/handler/meter;meter";
 
 import "api/annotations.proto";
 import "openapiv3/annotations.proto";

handler/meter/meter_micro.pb.go

@@ -1,22 +1,22 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
 // versions:
-// - protoc-gen-go-micro v4.0.0
+// - protoc-gen-go-micro v3.10.2
 // - protoc              v3.21.12
-// source: meter/meter.proto
+// source: meter.proto
 
 package meter
 
 import (
 	context "context"
-	codec "go.unistack.org/micro-proto/v4/codec"
-	v4 "go.unistack.org/micro-server-http/v4"
+	codec "go.unistack.org/micro-proto/v3/codec"
+	v3 "go.unistack.org/micro-server-http/v3"
 )
 
 var (
 	MeterServiceName = "MeterService"
 )
 var (
-	MeterServiceServerEndpoints = []v4.EndpointMetadata{
+	MeterServiceServerEndpoints = []v3.EndpointMetadata{
 		{
 			Name:   "MeterService.Metrics",
 			Path:   "/metrics",

handler/meter/meter_micro_http.pb.go

@@ -1,14 +1,14 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v4.0.0
-// source: meter/meter.proto
+// protoc-gen-go-micro version: v3.10.2
+// source: meter.proto
 
 package meter
 
 import (
 	context "context"
-	codec "go.unistack.org/micro-proto/v4/codec"
-	v4 "go.unistack.org/micro-server-http/v4"
-	server "go.unistack.org/micro/v4/server"
+	codec "go.unistack.org/micro-proto/v3/codec"
+	v3 "go.unistack.org/micro-server-http/v3"
+	server "go.unistack.org/micro/v3/server"
 )
 
 type meterServiceServer struct {
@@ -28,6 +28,6 @@ func RegisterMeterServiceServer(s server.Server, sh MeterServiceServer, opts ...
 	}
 	h := &meterServiceServer{sh}
 	var nopts []server.HandlerOption
-	nopts = append(nopts, v4.HandlerEndpoints(MeterServiceServerEndpoints))
+	nopts = append(nopts, v3.HandlerEndpoints(MeterServiceServerEndpoints))
 	return s.Handle(s.NewHandler(&MeterService{h}, append(nopts, opts...)...))
 }

handler/pprof/pprof.go

@@ -0,0 +1,46 @@
+package pprof
+
+import (
+	"expvar"
+	"net/http"
+	"net/http/pprof"
+	"path"
+	"strings"
+)
+
+func NewHandler(prefixPath string, initFuncs ...func()) http.HandlerFunc {
+	for _, fn := range initFuncs {
+		fn()
+	}
+
+	return func(w http.ResponseWriter, r *http.Request) {
+		switch {
+		case strings.EqualFold(r.RequestURI, prefixPath) && r.RequestURI[len(r.RequestURI)-1] != '/':
+			http.Redirect(w, r, r.RequestURI+"/", http.StatusMovedPermanently)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "cmdline")):
+			pprof.Cmdline(w, r)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "profile")):
+			pprof.Profile(w, r)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "symbol")):
+			pprof.Symbol(w, r)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "trace")):
+			pprof.Trace(w, r)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "goroutine")):
+			pprof.Handler("goroutine").ServeHTTP(w, r)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "threadcreate")):
+			pprof.Handler("threadcreate").ServeHTTP(w, r)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "mutex")):
+			pprof.Handler("mutex").ServeHTTP(w, r)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "heap")):
+			pprof.Handler("heap").ServeHTTP(w, r)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "block")):
+			pprof.Handler("block").ServeHTTP(w, r)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "allocs")):
+			pprof.Handler("allocs").ServeHTTP(w, r)
+		case strings.HasPrefix(r.RequestURI, path.Join(prefixPath, "vars")):
+			expvar.Handler().ServeHTTP(w, r)
+		default:
+			pprof.Index(w, r)
+		}
+	}
+}

handler/swagger-ui/swaggerui.go

@@ -1,4 +1,4 @@
-package swaggerui // import "go.unistack.org/micro-server-http/v4/handler/swagger-ui"
+package swaggerui // import "go.unistack.org/micro-server-http/v3/handler/swagger-ui"
 
 import (
 	"embed"

handler/swagger/swagger.go

@@ -0,0 +1,61 @@
+package swagger
+
+import (
+	"io/fs"
+	"net/http"
+
+	yamlcodec "go.unistack.org/micro-codec-yaml/v3"
+	rutil "go.unistack.org/micro/v3/util/reflect"
+)
+
+// Handler append to generated swagger data from dst map[string]interface{}
+var Handler = func(dst map[string]interface{}, fsys fs.FS) http.HandlerFunc {
+	c := yamlcodec.NewCodec()
+	return func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodGet {
+			w.WriteHeader(http.StatusNotFound)
+			return
+		}
+
+		path := r.URL.Path
+		if len(path) > 1 && path[0] == '/' {
+			path = path[1:]
+		}
+
+		buf, err := fs.ReadFile(fsys, path)
+		if err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			_, _ = w.Write([]byte(err.Error()))
+			return
+		}
+
+		if dst == nil {
+			w.WriteHeader(http.StatusOK)
+			_, _ = w.Write(buf)
+			return
+		}
+
+		var src interface{}
+
+		if err = c.Unmarshal(buf, src); err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			_, _ = w.Write([]byte(err.Error()))
+			return
+		}
+
+		if err = rutil.Merge(src, dst); err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			_, _ = w.Write([]byte(err.Error()))
+			return
+		}
+
+		if buf, err = c.Marshal(src); err != nil {
+			w.WriteHeader(http.StatusInternalServerError)
+			_, _ = w.Write([]byte(err.Error()))
+			return
+		}
+
+		w.WriteHeader(http.StatusOK)
+		_, _ = w.Write(buf)
+	}
+}

http.go

@@ -1,5 +1,5 @@
 // Package http implements a go-micro.Server
-package http // import "go.unistack.org/micro-server-http/v4"
+package http // import "go.unistack.org/micro-server-http/v3"
 
 import (
 	"context"
@@ -14,18 +14,18 @@ import (
 	"sync"
 	"time"
 
-	"go.unistack.org/micro/v4/broker"
-	"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"
+	"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"
 	"golang.org/x/net/netutil"
 )
 
-var _ server.Server = &httpServer{}
+var _ server.Server = (*Server)(nil)
 
-type httpServer struct {
+type Server struct {
 	hd           server.Handler
 	rsvc         *register.Service
 	handlers     map[string]server.Handler
@@ -40,7 +40,7 @@ type httpServer struct {
 	init       bool
 }
 
-func (h *httpServer) newCodec(ct string) (codec.Codec, error) {
+func (h *Server) newCodec(ct string) (codec.Codec, error) {
 	if idx := strings.IndexRune(ct, ';'); idx >= 0 {
 		ct = ct[:idx]
 	}
@@ -53,14 +53,14 @@ func (h *httpServer) newCodec(ct string) (codec.Codec, error) {
 	return nil, codec.ErrUnknownContentType
 }
 
-func (h *httpServer) Options() server.Options {
+func (h *Server) Options() server.Options {
 	h.Lock()
 	opts := h.opts
 	h.Unlock()
 	return opts
 }
 
-func (h *httpServer) Init(opts ...server.Option) error {
+func (h *Server) Init(opts ...server.Option) error {
 	if len(opts) == 0 && h.init {
 		return nil
 	}
@@ -130,7 +130,7 @@ func (h *httpServer) Init(opts ...server.Option) error {
 	return nil
 }
 
-func (h *httpServer) Handle(handler server.Handler) error {
+func (h *Server) Handle(handler server.Handler) error {
 	// passed unknown handler
 	hdlr, ok := handler.(*httpHandler)
 	if !ok {
@@ -159,7 +159,7 @@ func (h *httpServer) Handle(handler server.Handler) error {
 	return nil
 }
 
-func (h *httpServer) NewHandler(handler interface{}, opts ...server.HandlerOption) server.Handler {
+func (h *Server) NewHandler(handler interface{}, opts ...server.HandlerOption) server.Handler {
 	options := server.NewHandlerOptions(opts...)
 
 	eps := make([]*register.Endpoint, 0, len(options.Metadata))
@@ -288,11 +288,11 @@ func (h *httpServer) NewHandler(handler interface{}, opts ...server.HandlerOptio
 	return hdlr
 }
 
-func (h *httpServer) NewSubscriber(topic string, handler interface{}, opts ...server.SubscriberOption) server.Subscriber {
+func (h *Server) NewSubscriber(topic string, handler interface{}, opts ...server.SubscriberOption) server.Subscriber {
 	return newSubscriber(topic, handler, opts...)
 }
 
-func (h *httpServer) Subscribe(sb server.Subscriber) error {
+func (h *Server) Subscribe(sb server.Subscriber) error {
 	sub, ok := sb.(*httpSubscriber)
 	if !ok {
 		return fmt.Errorf("invalid subscriber: expected *httpSubscriber")
@@ -317,7 +317,7 @@ func (h *httpServer) Subscribe(sb server.Subscriber) error {
 	return nil
 }
 
-func (h *httpServer) Register() error {
+func (h *Server) Register() error {
 	var eps []*register.Endpoint
 	h.RLock()
 	for _, hdlr := range h.handlers {
@@ -378,6 +378,17 @@ func (h *httpServer) Register() error {
 	}
 
 	h.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
@@ -401,14 +412,10 @@ func (h *httpServer) Register() error {
 		h.subscribers[sb] = []broker.Subscriber{sub}
 	}
 
-	h.registered = true
-	h.rsvc = service
-	h.Unlock()
-
 	return nil
 }
 
-func (h *httpServer) Deregister() error {
+func (h *Server) Deregister() error {
 	h.RLock()
 	config := h.opts
 	h.RUnlock()
@@ -456,7 +463,7 @@ func (h *httpServer) Deregister() error {
 	return nil
 }
 
-func (h *httpServer) Start() error {
+func (h *Server) Start() error {
 	h.RLock()
 	config := h.opts
 	h.RUnlock()
@@ -494,7 +501,6 @@ func (h *httpServer) Start() error {
 	h.Unlock()
 
 	var handler http.Handler
-	var srvFunc func(net.Listener) error
 
 	// nolint: nestif
 	if h.opts.Context != nil {
@@ -539,8 +545,14 @@ func (h *httpServer) Start() error {
 		}
 	}
 
+	if err := h.subscribe(); err != nil {
+		return err
+	}
+
 	fn := handler
 
+	var hs *http.Server
+	var srvFunc func(net.Listener) error
 	if h.opts.Context != nil {
 		if mwf, ok := h.opts.Context.Value(middlewareKey{}).([]func(http.Handler) http.Handler); ok && len(mwf) > 0 {
 			// wrap the handler func
@@ -548,7 +560,8 @@ func (h *httpServer) Start() error {
 				fn = mwf[i-1](fn)
 			}
 		}
-		if hs, ok := h.opts.Context.Value(serverKey{}).(*http.Server); ok && hs != nil {
+		var ok bool
+		if hs, ok = h.opts.Context.Value(serverKey{}).(*http.Server); ok && hs != nil {
 			hs.Handler = fn
 			srvFunc = hs.Serve
 		}
@@ -562,7 +575,8 @@ func (h *httpServer) Start() error {
 		}()
 	} else {
 		go func() {
-			if cerr := http.Serve(ts, fn); cerr != nil && !errors.Is(cerr, net.ErrClosed) {
+			hs = &http.Server{Handler: fn}
+			if cerr := hs.Serve(ts); cerr != nil && !errors.Is(cerr, net.ErrClosed) {
 				h.opts.Logger.Error(h.opts.Context, cerr)
 			}
 		}()
@@ -630,33 +644,41 @@ func (h *httpServer) Start() error {
 			config.Logger.Errorf(config.Context, "Broker disconnect error: %s", err)
 		}
 
-		ch <- ts.Close()
+		ctx, cancel := context.WithTimeout(context.Background(), h.opts.GracefulTimeout)
+		defer cancel()
+
+		err := hs.Shutdown(ctx)
+		if err != nil {
+			err = hs.Close()
+		}
+
+		ch <- err
 	}()
 
 	return nil
 }
 
-func (h *httpServer) Stop() error {
+func (h *Server) Stop() error {
 	ch := make(chan error)
 	h.exit <- ch
 	return <-ch
 }
 
-func (h *httpServer) String() string {
+func (h *Server) String() string {
 	return "http"
 }
 
-func (h *httpServer) Name() string {
+func (h *Server) Name() string {
 	return h.opts.Name
 }
 
-func NewServer(opts ...server.Option) *httpServer {
+func NewServer(opts ...server.Option) *Server {
 	options := server.NewOptions(opts...)
 	eh := DefaultErrorHandler
 	if v, ok := options.Context.Value(errorHandlerKey{}).(errorHandler); ok && v != nil {
 		eh = v
 	}
-	return &httpServer{
+	return &Server{
 		opts:         options,
 		exit:         make(chan chan error),
 		subscribers:  make(map[*httpSubscriber][]broker.Subscriber),

message.go

@@ -1,8 +1,8 @@
 package http
 
 import (
-	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v4/metadata"
+	"go.unistack.org/micro/v3/codec"
+	"go.unistack.org/micro/v3/metadata"
 )
 
 type httpMessage struct {

options.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"net/http"
 
-	"go.unistack.org/micro/v4/server"
+	"go.unistack.org/micro/v3/server"
 )
 
 // SetError pass error to caller
@@ -85,8 +85,8 @@ func Middleware(mw ...func(http.Handler) http.Handler) server.Option {
 
 type serverKey struct{}
 
-// Server provide ability to pass *http.Server
-func Server(hs *http.Server) server.Option {
+// HTTPServer provide ability to pass *http.Server
+func HTTPServer(hs *http.Server) server.Option {
 	return server.SetOption(serverKey{}, hs)
 }
 

request.go

@@ -3,9 +3,9 @@ package http
 import (
 	"io"
 
-	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v4/server"
+	"go.unistack.org/micro/v3/codec"
+	"go.unistack.org/micro/v3/metadata"
+	"go.unistack.org/micro/v3/server"
 )
 
 var (

server.go

@@ -7,7 +7,7 @@ import (
 	"unicode"
 	"unicode/utf8"
 
-	"go.unistack.org/micro/v4/server"
+	"go.unistack.org/micro/v3/server"
 )
 
 type methodType struct {

subscriber.go

@@ -7,11 +7,11 @@ import (
 	"reflect"
 	"strings"
 
-	"go.unistack.org/micro/v4/broker"
-	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v4/register"
-	"go.unistack.org/micro/v4/server"
+	"go.unistack.org/micro/v3/broker"
+	"go.unistack.org/micro/v3/codec"
+	"go.unistack.org/micro/v3/metadata"
+	"go.unistack.org/micro/v3/register"
+	"go.unistack.org/micro/v3/server"
 )
 
 var typeOfError = reflect.TypeOf((*error)(nil)).Elem()
@@ -101,7 +101,7 @@ func newSubscriber(topic string, sub interface{}, opts ...server.SubscriberOptio
 	}
 }
 
-func (s *httpServer) createSubHandler(sb *httpSubscriber, opts server.Options) broker.Handler {
+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"]
@@ -111,7 +111,6 @@ func (s *httpServer) createSubHandler(sb *httpSubscriber, opts server.Options) b
 		}
 
 		hdr := metadata.Copy(msg.Header)
-		delete(hdr, "Content-Type")
 		ctx := metadata.NewIncomingContext(context.Background(), hdr)
 
 		results := make(chan error, len(sb.handlers))

util.go

@@ -5,8 +5,8 @@ import (
 	"net/http"
 	"strings"
 
-	"go.unistack.org/micro/v4/metadata"
-	rutil "go.unistack.org/micro/v4/util/reflect"
+	"go.unistack.org/micro/v3/metadata"
+	rutil "go.unistack.org/micro/v3/util/reflect"
 )
 
 func FillRequest(ctx context.Context, req interface{}, opts ...FillRequestOption) error {

util_test.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"testing"
 
-	"go.unistack.org/micro/v4/metadata"
+	"go.unistack.org/micro/v3/metadata"
 )
 
 func TestFillrequest(t *testing.T) {