allow to publish body only

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

.github/stale.sh

@@ -1,13 +0,0 @@
-#!/bin/bash -ex
-
-export PATH=$PATH:$(pwd)/bin
-export GO111MODULE=on
-export GOBIN=$(pwd)/bin
-
-#go get github.com/rvflash/goup@v0.4.1
-
-#goup -v ./...
-#go get github.com/psampaz/go-mod-outdated@v0.6.0
-go list -u -m -mod=mod -json all | go-mod-outdated -update -direct -ci || true
-
-#go list -u -m -json all | go-mod-outdated -update

.golangci.yml

@@ -0,0 +1,44 @@
+run:
+  concurrency: 4
+  deadline: 5m
+  issues-exit-code: 1
+  tests: true
+
+linters-settings:
+  govet:
+    check-shadowing: true
+    enable:
+      - fieldalignment
+
+linters:
+  enable:
+    - govet
+    - deadcode
+    - errcheck
+    - govet
+    - ineffassign
+    - staticcheck
+    - structcheck
+    - typecheck
+    - unused
+    - varcheck
+    - bodyclose
+    - gci
+    - goconst
+    - gocritic
+    - gosimple
+    - gofmt
+    - gofumpt
+    - goimports
+    - golint
+    - gosec
+    - makezero
+    - misspell
+    - nakedret
+    - nestif
+    - nilerr
+    - noctx
+    - prealloc
+    - unconvert
+    - unparam
+  disable-all: false

codec.go

@@ -36,19 +36,17 @@ func (w *wrapGrpcCodec) String() string {
 }
 
 func (w *wrapGrpcCodec) Marshal(v interface{}) ([]byte, error) {
-	switch m := v.(type) {
-	case *codec.Frame:
+	if m, ok := v.(*codec.Frame); ok {
 		return m.Data, nil
 	}
 	return w.Codec.Marshal(v)
 }
 
-func (w wrapGrpcCodec) Unmarshal(d []byte, v interface{}) error {
+func (w *wrapGrpcCodec) Unmarshal(d []byte, v interface{}) error {
 	if d == nil || v == nil {
 		return nil
 	}
-	switch m := v.(type) {
-	case *codec.Frame:
+	if m, ok := v.(*codec.Frame); ok {
 		m.Data = d
 		return nil
 	}
@@ -69,7 +67,7 @@ type grpcCodec struct {
 
 */
 
-func (g *wrapGrpcCodec) ReadHeader(conn io.Reader, m *codec.Message, mt codec.MessageType) error {
+func (w *wrapGrpcCodec) ReadHeader(conn io.Reader, m *codec.Message, mt codec.MessageType) error {
 	/*
 		if m == nil {
 			m = codec.NewMessage(codec.Request)
@@ -92,20 +90,19 @@ func (g *wrapGrpcCodec) ReadHeader(conn io.Reader, m *codec.Message, mt codec.Me
 	return nil
 }
 
-func (g *wrapGrpcCodec) ReadBody(conn io.Reader, v interface{}) error {
+func (w *wrapGrpcCodec) ReadBody(conn io.Reader, v interface{}) error {
 	// caller has requested a frame
-	switch m := v.(type) {
-	case *codec.Frame:
+	if m, ok := v.(*codec.Frame); ok {
 		_, err := conn.Read(m.Data)
 		return err
 	}
 	return codec.ErrInvalidMessage
 }
 
-func (g *wrapGrpcCodec) Write(conn io.Writer, m *codec.Message, v interface{}) error {
+func (w *wrapGrpcCodec) Write(conn io.Writer, m *codec.Message, v interface{}) error {
 	// if we don't have a body
 	if v != nil {
-		b, err := g.Marshal(v)
+		b, err := w.Marshal(v)
 		if err != nil {
 			return err
 		}

error.go

@@ -35,5 +35,10 @@ func microError(err error) error {
 	}
 
 	// fallback
-	return errors.InternalServerError("go.micro.client", s.Message())
+	return &errors.Error{
+		Id:     "go.micro.client",
+		Code:   int32(s.Code()),
+		Detail: s.Message(),
+		Status: s.Code().String(),
+	}
 }

go.mod

@@ -4,10 +4,8 @@ go 1.16
 
 require (
 	github.com/google/go-cmp v0.5.1 // indirect
-	github.com/unistack-org/micro/v3 v3.3.11
+	github.com/unistack-org/micro/v3 v3.3.20
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	google.golang.org/genproto v0.0.0-20200904004341-0bd0a958aa1d // indirect
-	google.golang.org/grpc v1.37.0
+	google.golang.org/grpc v1.37.1
 )
-
-//replace github.com/unistack-org/micro/v3 => ../../micro

go.sum

@@ -8,7 +8,6 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZm
 github.com/ef-ds/deque v1.0.4/go.mod h1:gXDnTC3yqvBcHbq2lcExjtAcVrOnJCbMcZXmuj8Z4tg=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
-github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
 github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
@@ -40,21 +39,8 @@ github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:
 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 v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
-github.com/unistack-org/micro/v3 v3.3.0 h1:pEj/8QVFzMlNMEL//q/Te8qgG+XI6LTYIQrb6hMymgk=
-github.com/unistack-org/micro/v3 v3.3.0/go.mod h1:iJwCWq2PECMxigfqe6TPC5GLWvj6P94Kk+PTVZGL3w8=
-github.com/unistack-org/micro/v3 v3.3.1 h1:2KUgb5THy5GUjYgMcOf3TXYIJ0h2RbJHb2j6eeWdRx0=
-github.com/unistack-org/micro/v3 v3.3.1/go.mod h1:iJwCWq2PECMxigfqe6TPC5GLWvj6P94Kk+PTVZGL3w8=
-github.com/unistack-org/micro/v3 v3.3.2 h1:1r7fmaobJVZBKDhIewSBy8R4H/6YazQFetsDgULV6Mw=
-github.com/unistack-org/micro/v3 v3.3.2/go.mod h1:tX95c0Qx4w6oqU7qKThs9lya9P507BdZ29MsTVDmU6w=
-github.com/unistack-org/micro/v3 v3.3.4 h1:wSYjL1sfrqtMmgFfYKylrKpAepMHrPcOpe10hvQAKuo=
-github.com/unistack-org/micro/v3 v3.3.4/go.mod h1:tX95c0Qx4w6oqU7qKThs9lya9P507BdZ29MsTVDmU6w=
-github.com/unistack-org/micro/v3 v3.3.8/go.mod h1:M3RGgKZX1OlTn0QB+3R1tlSoGwmEg6rb/Isr0lLYmjQ=
-github.com/unistack-org/micro/v3 v3.3.9 h1:NFF4wymDDxgYeZU++04BxvETrrAnd0iNzVyfm/ssQI4=
-github.com/unistack-org/micro/v3 v3.3.9/go.mod h1:M3RGgKZX1OlTn0QB+3R1tlSoGwmEg6rb/Isr0lLYmjQ=
-github.com/unistack-org/micro/v3 v3.3.10 h1:yMSiyplupFQ7xy/kNXL/zqSnqGSjrlNa2GTCwea5BVg=
-github.com/unistack-org/micro/v3 v3.3.10/go.mod h1:5ragE2E8ER5d4FZQJG9pB6qdfOoLXLfKW89l77Dy3jQ=
-github.com/unistack-org/micro/v3 v3.3.11 h1:Jr0gAw5lLqgddiHKQeWUOUeP6ZqgRhz52EA9zJ5MJ3U=
-github.com/unistack-org/micro/v3 v3.3.11/go.mod h1:PPCt675o3HPcODFbJ4iRWPmQFAk1WQ+asQSOb/syq6U=
+github.com/unistack-org/micro/v3 v3.3.20 h1:gB+sPtvYuEKJQG/k5xnC1TK7MnZbr7wlgyqpYNREdyo=
+github.com/unistack-org/micro/v3 v3.3.20/go.mod h1:LXmPfbJnJNvL0kQs8HfnkV3Wya2Wb+C7keVq++RCZnk=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -64,14 +50,8 @@ golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4 h1:b0LrWgu8+q7z4J+0Y3Umo5q1dL7NXBkKBWkaVkAq17E=
-golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4/go.mod h1:RBQZq4jEuRlivfhVLdyRGr576XBO4/greRjx4P4O3yc=
-golang.org/x/net v0.0.0-20210324205630-d1beb07c2056 h1:sANdAef76Ioam9aQUUdcAqricwY/WUaMc4+7LY4eGg8=
-golang.org/x/net v0.0.0-20210324205630-d1beb07c2056/go.mod h1:uSPa2vr4CLtc/ILN5odXGNXS6mhrKVzTaCXzk9m6W3k=
-golang.org/x/net v0.0.0-20210326220855-61e056675ecf/go.mod h1:uSPa2vr4CLtc/ILN5odXGNXS6mhrKVzTaCXzk9m6W3k=
-golang.org/x/net v0.0.0-20210331060903-cb1fcc7394e5/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
-golang.org/x/net v0.0.0-20210331212208-0fccb6fa2b5c h1:KHUzaHIpjWVlVVNh65G3hhuj3KB1HnjY6Cq5cTvRQT8=
-golang.org/x/net v0.0.0-20210331212208-0fccb6fa2b5c/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
+golang.org/x/net v0.0.0-20210510120150-4163338589ed h1:p9UgmWI9wKpfYmgaV/IZKGdXc5qEK45tDwwwDyjS26I=
+golang.org/x/net v0.0.0-20210510120150-4163338589ed/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -79,15 +59,12 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005 h1:pDMpM2zh2MT0kHy037cKlSby2nEhD50SYqwQk76Nm40=
-golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210324051608-47abb6519492/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44 h1:Bli41pIlzTzf3KEY06n+xnzK/BESIg2ze4Pgfh/aI8c=
-golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da h1:b3NXsE2LusjYGGjL5bxEVZZORm/YEFFrWFjR8eFrw/c=
+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 v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
+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/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
@@ -107,12 +84,8 @@ google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZi
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-google.golang.org/grpc v1.36.0 h1:o1bcQ6imQMIOpdrO3SWf2z5RV72WbDwdXuK0MDlc8As=
-google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.36.1 h1:cmUfbeGKnz9+2DD/UYsMQXeqbHZqZDs4eQwW0sFOpBY=
-google.golang.org/grpc v1.36.1/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
-google.golang.org/grpc v1.37.0 h1:uSZWeQJX5j11bIQ4AJoj+McDBo29cY1MCoC1wO3ts+c=
-google.golang.org/grpc v1.37.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
+google.golang.org/grpc v1.37.1 h1:ARnQJNWxGyYJpdf/JXscNlQr/uv607ZPU9Z7ogHi+iI=
+google.golang.org/grpc v1.37.1/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
 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=

grpc.go

@@ -9,7 +9,6 @@ import (
 	"reflect"
 	"strings"
 	"sync"
-	"sync/atomic"
 	"time"
 
 	"github.com/unistack-org/micro/v3/broker"
@@ -23,11 +22,13 @@ import (
 	gmetadata "google.golang.org/grpc/metadata"
 )
 
+const (
+	defaultContentType = "application/grpc+proto"
+)
+
 type grpcClient struct {
 	opts client.Options
-	codecs map[string]encoding.Codec
 	pool *pool
-	once   atomic.Value
 	init bool
 	sync.RWMutex
 }
@@ -35,17 +36,14 @@ type grpcClient struct {
 // secure returns the dial option for whether its a secure or insecure connection
 func (g *grpcClient) secure(addr string) grpc.DialOption {
 	// first we check if theres'a  tls config
-	if g.opts.Context != nil {
-		if v := g.opts.Context.Value(tlsAuth{}); v != nil {
-			tls := v.(*tls.Config)
-			creds := credentials.NewTLS(tls)
+	if g.opts.TLSConfig != nil {
+		creds := credentials.NewTLS(g.opts.TLSConfig)
 		// return tls config if it exists
 		return grpc.WithTransportCredentials(creds)
 	}
-	}
 
 	// default config
-	tlsConfig := &tls.Config{}
+	tlsConfig := &tls.Config{MinVersion: tls.VersionTLS12}
 	defaultCreds := grpc.WithTransportCredentials(credentials.NewTLS(tlsConfig))
 
 	// check if the address is prepended with https
@@ -86,7 +84,7 @@ func (g *grpcClient) call(ctx context.Context, addr string, req client.Request,
 	md := gmetadata.New(header)
 	ctx = gmetadata.NewOutgoingContext(ctx, md)
 
-	cf, err := g.newGRPCCodec(req.ContentType())
+	cf, err := g.newCodec(req.ContentType())
 	if err != nil {
 		return errors.InternalServerError("go.micro.client", err.Error())
 	}
@@ -123,7 +121,7 @@ func (g *grpcClient) call(ctx context.Context, addr string, req client.Request,
 	}
 	defer func() {
 		// defer execution of release
-		g.pool.release(addr, cc, grr)
+		g.pool.release(cc, grr)
 	}()
 
 	ch := make(chan error, 1)
@@ -131,7 +129,8 @@ func (g *grpcClient) call(ctx context.Context, addr string, req client.Request,
 	go func() {
 		grpcCallOptions := []grpc.CallOption{
 			grpc.ForceCodec(&wrapMicroCodec{cf}),
-			grpc.CallContentSubtype((&wrapMicroCodec{cf}).Name())}
+			grpc.CallContentSubtype((&wrapMicroCodec{cf}).Name()),
+		}
 		if opts := g.getGrpcCallOptions(); opts != nil {
 			grpcCallOptions = append(grpcCallOptions, opts...)
 		}
@@ -171,7 +170,7 @@ func (g *grpcClient) stream(ctx context.Context, addr string, req client.Request
 	md := gmetadata.New(header)
 	ctx = gmetadata.NewOutgoingContext(ctx, md)
 
-	cf, err := g.newGRPCCodec(req.ContentType())
+	cf, err := g.newCodec(req.ContentType())
 	if err != nil {
 		return errors.InternalServerError("go.micro.client", err.Error())
 	}
@@ -187,8 +186,15 @@ func (g *grpcClient) stream(ctx context.Context, addr string, req client.Request
 
 	wc := &wrapMicroCodec{cf}
 
+	maxRecvMsgSize := g.maxRecvMsgSizeValue()
+	maxSendMsgSize := g.maxSendMsgSizeValue()
+
 	grpcDialOptions := []grpc.DialOption{
 		g.secure(addr),
+		grpc.WithDefaultCallOptions(
+			grpc.MaxCallRecvMsgSize(maxRecvMsgSize),
+			grpc.MaxCallSendMsgSize(maxSendMsgSize),
+		),
 	}
 
 	if opts := g.getGrpcDialOptions(); opts != nil {
@@ -223,7 +229,7 @@ func (g *grpcClient) stream(ctx context.Context, addr string, req client.Request
 		// cancel the context
 		cancel()
 		// release the connection
-		g.pool.release(addr, cc, err)
+		g.pool.release(cc, err)
 		// now return the error
 		return errors.InternalServerError("go.micro.client", fmt.Sprintf("Error creating stream: %v", err))
 	}
@@ -245,13 +251,13 @@ func (g *grpcClient) stream(ctx context.Context, addr string, req client.Request
 		},
 		conn: cc,
 		close: func(err error) {
-			// cancel the context if an error occured
+			// cancel the context if an error occurred
 			if err != nil {
 				cancel()
 			}
 
 			// defer execution of release
-			g.pool.release(addr, cc, err)
+			g.pool.release(cc, err)
 		},
 	}
 
@@ -305,10 +311,14 @@ func (g *grpcClient) maxSendMsgSizeValue() int {
 	return v.(int)
 }
 
-func (g *grpcClient) newGRPCCodec(ct string) (codec.Codec, error) {
+func (g *grpcClient) newCodec(ct string) (codec.Codec, error) {
 	g.RLock()
 	defer g.RUnlock()
 
+	if idx := strings.IndexRune(ct, ';'); idx >= 0 {
+		ct = ct[:idx]
+	}
+
 	if c, ok := g.opts.Codecs[ct]; ok {
 		return c, nil
 	}
@@ -648,7 +658,7 @@ func (g *grpcClient) Publish(ctx context.Context, p client.Message, opts ...clie
 		body = d.Data
 	} else {
 		// use codec for payload
-		cf, err := g.newGRPCCodec(p.ContentType())
+		cf, err := g.newCodec(p.ContentType())
 		if err != nil {
 			return errors.InternalServerError("go.micro.client", err.Error())
 		}
@@ -670,7 +680,10 @@ func (g *grpcClient) Publish(ctx context.Context, p client.Message, opts ...clie
 	return g.opts.Broker.Publish(metadata.NewOutgoingContext(ctx, md), topic, &broker.Message{
 		Header: md,
 		Body:   body,
-	}, broker.PublishContext(options.Context))
+	},
+		broker.PublishContext(options.Context),
+		broker.PublishBodyOnly(options.BodyOnly),
+	)
 }
 
 func (g *grpcClient) String() string {
@@ -724,7 +737,7 @@ func (g *grpcClient) getGrpcCallOptions() []grpc.CallOption {
 func NewClient(opts ...client.Option) client.Client {
 	options := client.NewOptions(opts...)
 	// default content type for grpc
-	options.ContentType = "application/grpc+proto"
+	options.ContentType = defaultContentType
 
 	rc := &grpcClient{
 		opts: options,

grpc_pool.go

@@ -10,16 +10,12 @@ import (
 )
 
 type pool struct {
+	conns      map[string]*streamsPool
 	size       int
 	ttl        int64
-
-	//  max streams on a *poolConn
 	maxStreams int
-	//  max idle conns
 	maxIdle    int
-
 	sync.Mutex
-	conns map[string]*streamsPool
 }
 
 type streamsPool struct {
@@ -34,20 +30,15 @@ type streamsPool struct {
 }
 
 type poolConn struct {
-	//  grpc conn
-	*grpc.ClientConn
 	err error
-	addr string
-
-	//  pool and streams pool
+	*grpc.ClientConn
+	next    *poolConn
 	pool    *pool
 	sp      *streamsPool
+	pre     *poolConn
+	addr    string
 	streams int
 	created int64
-
-	//  list
-	pre  *poolConn
-	next *poolConn
 	in      bool
 }
 
@@ -140,7 +131,7 @@ func (p *pool) getConn(ctx context.Context, addr string, opts ...grpc.DialOption
 	if err != nil {
 		return nil, err
 	}
-	conn = &poolConn{cc, nil, addr, p, sp, 1, time.Now().Unix(), nil, nil, false}
+	conn = &poolConn{ClientConn: cc, err: nil, addr: addr, pool: p, sp: sp, streams: 1, created: time.Now().Unix(), pre: nil, next: nil, in: false}
 
 	//  add conn to streams pool
 	p.Lock()
@@ -152,7 +143,7 @@ func (p *pool) getConn(ctx context.Context, addr string, opts ...grpc.DialOption
 	return conn, nil
 }
 
-func (p *pool) release(addr string, conn *poolConn, err error) {
+func (p *pool) release(conn *poolConn, err error) {
 	p.Lock()
 	p, sp, created := conn.pool, conn.sp, conn.created
 	//  try to add conn
@@ -188,7 +179,7 @@ func (p *pool) release(addr string, conn *poolConn, err error) {
 }
 
 func (conn *poolConn) Close() {
-	conn.pool.release(conn.addr, conn, conn.err)
+	conn.pool.release(conn, conn.err)
 }
 
 func removeConn(conn *poolConn) {

message.go

@@ -5,9 +5,9 @@ import (
 )
 
 type grpcEvent struct {
+	payload     interface{}
 	topic       string
 	contentType string
-	payload     interface{}
 }
 
 func newGRPCEvent(topic string, payload interface{}, contentType string, opts ...client.MessageOption) client.Message {

options.go

@@ -3,7 +3,6 @@ package grpc
 
 import (
 	"context"
-	"crypto/tls"
 
 	"github.com/unistack-org/micro/v3/client"
 	"google.golang.org/grpc"
@@ -29,13 +28,6 @@ var (
 )
 
 type poolMaxStreams struct{}
-type poolMaxIdle struct{}
-type codecsKey struct{}
-type tlsAuth struct{}
-type maxRecvMsgSizeKey struct{}
-type maxSendMsgSizeKey struct{}
-type grpcDialOptions struct{}
-type grpcCallOptions struct{}
 
 // maximum streams on a connectioin
 func PoolMaxStreams(n int) client.Option {
@@ -47,6 +39,8 @@ func PoolMaxStreams(n int) client.Option {
 	}
 }
 
+type poolMaxIdle struct{}
+
 // maximum idle conns of a pool
 func PoolMaxIdle(d int) client.Option {
 	return func(o *client.Options) {
@@ -57,6 +51,8 @@ func PoolMaxIdle(d int) client.Option {
 	}
 }
 
+type codecsKey struct{}
+
 // gRPC Codec to be used to encode/decode requests for a given content type
 func Codec(contentType string, c encoding.Codec) client.Option {
 	return func(o *client.Options) {
@@ -72,15 +68,7 @@ func Codec(contentType string, c encoding.Codec) client.Option {
 	}
 }
 
-// AuthTLS should be used to setup a secure authentication using TLS
-func AuthTLS(t *tls.Config) client.Option {
-	return func(o *client.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, tlsAuth{}, t)
-	}
-}
+type maxRecvMsgSizeKey struct{}
 
 //
 // MaxRecvMsgSize set the maximum size of message that client can receive.
@@ -94,6 +82,8 @@ func MaxRecvMsgSize(s int) client.Option {
 	}
 }
 
+type maxSendMsgSizeKey struct{}
+
 //
 // MaxSendMsgSize set the maximum size of message that client can send.
 //
@@ -106,6 +96,8 @@ func MaxSendMsgSize(s int) client.Option {
 	}
 }
 
+type grpcDialOptions struct{}
+
 //
 // DialOptions to be used to configure gRPC dial options
 //
@@ -118,6 +110,8 @@ func DialOptions(opts ...grpc.DialOption) client.CallOption {
 	}
 }
 
+type grpcCallOptions struct{}
+
 //
 // CallOptions to be used to configure gRPC call options
 //

request.go

@@ -9,12 +9,12 @@ import (
 )
 
 type grpcRequest struct {
+	request     interface{}
+	codec       codec.Codec
 	service     string
 	method      string
 	contentType string
-	request     interface{}
 	opts        client.RequestOptions
-	codec       codec.Codec
 }
 
 // service Struct.Method /service.Struct/Method

stream.go

@@ -11,17 +11,15 @@ import (
 
 // Implements the streamer interface
 type grpcStream struct {
-	// embed so we can access if need be
 	grpc.ClientStream
-
-	sync.RWMutex
-	closed   bool
+	context  context.Context
 	err      error
-	conn     *poolConn
 	request  client.Request
 	response client.Response
-	context  context.Context
 	close    func(err error)
+	conn     *poolConn
+	sync.RWMutex
+	closed bool
 }
 
 func (g *grpcStream) Context() context.Context {