allow to publish only body

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

.github/renovate.json

@@ -0,0 +1,20 @@
+{
+  "extends": [
+    "config:base"
+  ],
+  "postUpdateOptions": ["gomodTidy"],
+  "packageRules": [
+    {
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "automerge": true
+    },
+    {
+      "groupName": "all deps",
+      "separateMajorMinor": true,
+      "groupSlug": "all",
+      "packagePatterns": [
+        "*"
+      ]
+    }
+  ]
+}

.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-#go get github.com/psampaz/go-mod-outdated@v0.6.0
-go list -u -m -mod=mod -json all | go-mod-outdated -update -direct -ci || true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-#go list -u -m -json all | go-mod-outdated -update

.github/workflows/build.yml

@@ -9,9 +9,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: setup
-      uses: actions/setup-go@v1
+      uses: actions/setup-go@v2
       with:
-        go-version: 1.15
+        go-version: 1.16
     - name: checkout
       uses: actions/checkout@v2
     - name: cache
@@ -33,11 +33,10 @@ jobs:
       - name: checkout
         uses: actions/checkout@v2
       - name: lint
-        uses: golangci/golangci-lint-action@v1
-        continue-on-error: true
+        uses: golangci/golangci-lint-action@v2
         with:
           # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
-          version: v1.30
+          version: v1.39
           # Optional: working directory, useful for monorepos
           # working-directory: somedir
           # Optional: golangci-lint command line arguments.

.github/workflows/pr.yml

@@ -9,9 +9,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: setup
-      uses: actions/setup-go@v1
+      uses: actions/setup-go@v2
       with:
-        go-version: 1.15
+        go-version: 1.16
     - name: checkout
       uses: actions/checkout@v2
     - name: cache
@@ -33,11 +33,10 @@ jobs:
       - name: checkout
         uses: actions/checkout@v2
       - name: lint
-        uses: golangci/golangci-lint-action@v1
-        continue-on-error: true
+        uses: golangci/golangci-lint-action@v2
         with:
           # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
-          version: v1.30
+          version: v1.39
           # Optional: working directory, useful for monorepos
           # working-directory: somedir
           # Optional: golangci-lint command line arguments.

.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

go.mod

@@ -1,5 +1,5 @@
 module github.com/unistack-org/micro-client-http/v3
 
-go 1.14
+go 1.16
 
-require github.com/unistack-org/micro/v3 v3.2.2
+require github.com/unistack-org/micro/v3 v3.3.20

go.sum

@@ -1,129 +1,17 @@
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-github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
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-github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
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 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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-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/tools v0.0.0-20191216052735-49a3e744a425/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-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/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
-google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
-google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
-google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
-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 v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
-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=
-google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
-google.golang.org/protobuf v1.21.0 h1:qdOKuR/EIArgaWNjetjgTzgVTAZ+S/WXVrq9HW9zimw=
-google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
-google.golang.org/protobuf v1.22.0 h1:cJv5/xdbk1NnMPR1VP9+HU6gupuG9MLBoH1r6RHZ2MY=
-google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
-gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 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=
-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=

http.go

@@ -11,6 +11,8 @@ import (
 	"net/http"
 	"net/url"
 	"os"
+	"strings"
+	"sync"
 	"time"
 
 	"github.com/unistack-org/micro/v3/broker"
@@ -18,23 +20,31 @@ import (
 	"github.com/unistack-org/micro/v3/codec"
 	"github.com/unistack-org/micro/v3/errors"
 	"github.com/unistack-org/micro/v3/metadata"
-	"github.com/unistack-org/micro/v3/router"
 )
 
+var DefaultContentType = "application/json"
+
+/*
 func filterLabel(r []router.Route) []router.Route {
 	//				selector.FilterLabel("protocol", "http")
 	return r
 }
+*/
 
 type httpClient struct {
 	opts    client.Options
-	dialer  *net.Dialer
 	httpcli *http.Client
+	init    bool
+	sync.RWMutex
 }
 
-func newRequest(addr string, req client.Request, cf codec.Codec, msg interface{}, opts client.CallOptions) (*http.Request, error) {
+func newRequest(addr string, req client.Request, ct string, cf codec.Codec, msg interface{}, opts client.CallOptions) (*http.Request, error) {
 	hreq := &http.Request{Method: http.MethodPost}
 	body := "*" // as like google api http annotation
+
+	var tags []string
+	var scheme string
+
 	u, err := url.Parse(addr)
 	if err != nil {
 		hreq.URL = &url.URL{
@@ -43,7 +53,11 @@ func newRequest(addr string, req client.Request, cf codec.Codec, msg interface{}
 			Path:   req.Endpoint(),
 		}
 		hreq.Host = addr
-	} else {
+		scheme = "http"
+	}
+
+	// nolint: nestif
+	if scheme == "" {
 		ep := req.Endpoint()
 		if opts.Context != nil {
 			if m, ok := opts.Context.Value(methodKey{}).(string); ok {
@@ -55,6 +69,9 @@ func newRequest(addr string, req client.Request, cf codec.Codec, msg interface{}
 			if b, ok := opts.Context.Value(bodyKey{}).(string); ok {
 				body = b
 			}
+			if t, ok := opts.Context.Value(structTagsKey{}).([]string); ok && len(t) > 0 {
+				tags = t
+			}
 		}
 		hreq.URL, err = u.Parse(ep)
 		if err != nil {
@@ -62,44 +79,65 @@ func newRequest(addr string, req client.Request, cf codec.Codec, msg interface{}
 		}
 	}
 
-	path, nmsg, err := newPathRequest(hreq.URL.Path, hreq.Method, body, msg)
+	if len(tags) == 0 {
+		switch ct {
+		default:
+			tags = append(tags, "json", "protobuf")
+		case "text/xml":
+			tags = append(tags, "xml")
+		}
+	}
+
+	path, nmsg, err := newPathRequest(hreq.URL.Path, hreq.Method, body, msg, tags)
+	if err != nil {
+		return nil, errors.BadRequest("go.micro.client", err.Error())
+	}
+
+	if scheme != "" {
+		hreq.URL, err = url.Parse(scheme + "://" + addr + path)
+	} else {
+		hreq.URL, err = url.Parse(addr + path)
+	}
 	if err != nil {
 		return nil, errors.BadRequest("go.micro.client", err.Error())
 	}
 
-	hreq.URL.Path = path
-	// marshal request
 	b, err := cf.Marshal(nmsg)
 	if err != nil {
 		return nil, errors.BadRequest("go.micro.client", err.Error())
 	}
 
-	hreq.Body = ioutil.NopCloser(bytes.NewBuffer(b))
-	hreq.ContentLength = int64(len(b))
+	if len(b) > 0 {
+		hreq.Body = ioutil.NopCloser(bytes.NewBuffer(b))
+		hreq.ContentLength = int64(len(b))
+	}
 
 	return hreq, nil
 }
 
 func (h *httpClient) call(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions) error {
 	header := make(http.Header, 2)
-	if md, ok := metadata.FromContext(ctx); ok {
+	if md, ok := metadata.FromOutgoingContext(ctx); ok {
 		for k, v := range md {
 			header.Set(k, v)
 		}
 	}
 
+	ct := req.ContentType()
+	if len(opts.ContentType) > 0 {
+		ct = opts.ContentType
+	}
+
 	// set timeout in nanoseconds
 	header.Set("Timeout", fmt.Sprintf("%d", opts.RequestTimeout))
 	// set the content type for the request
-	header.Set("Content-Type", req.ContentType())
+	header.Set("Content-Type", ct)
 
-	// get codec
-	cf, err := h.newCodec(req.ContentType())
+	cf, err := h.newCodec(ct)
 	if err != nil {
 		return errors.InternalServerError("go.micro.client", err.Error())
 	}
-
-	hreq, err := newRequest(addr, req, cf, req.Body(), opts)
+	hreq, err := newRequest(addr, req, ct, cf, req.Body(), opts)
 	if err != nil {
 		return err
 	}
@@ -110,27 +148,27 @@ func (h *httpClient) call(ctx context.Context, addr string, req client.Request,
 	hrsp, err := h.httpcli.Do(hreq.WithContext(ctx))
 	if err != nil {
 		switch err := err.(type) {
-		case net.Error:
-			if err.Timeout() {
-				return errors.Timeout("go.micro.client", err.Error())
-			}
 		case *url.Error:
 			if err, ok := err.Err.(net.Error); ok && err.Timeout() {
 				return errors.Timeout("go.micro.client", err.Error())
 			}
+		case net.Error:
+			if err.Timeout() {
+				return errors.Timeout("go.micro.client", err.Error())
+			}
 		}
 		return errors.InternalServerError("go.micro.client", err.Error())
 	}
 
 	defer hrsp.Body.Close()
 
-	return parseRsp(ctx, hrsp, cf, rsp, opts)
+	return h.parseRsp(ctx, hrsp, rsp, opts)
 }
 
 func (h *httpClient) stream(ctx context.Context, addr string, req client.Request, opts client.CallOptions) (client.Stream, error) {
 	var header http.Header
 
-	if md, ok := metadata.FromContext(ctx); ok {
+	if md, ok := metadata.FromOutgoingContext(ctx); ok {
 		header = make(http.Header, len(md)+2)
 		for k, v := range md {
 			header.Set(k, v)
@@ -139,23 +177,24 @@ func (h *httpClient) stream(ctx context.Context, addr string, req client.Request
 		header = make(http.Header, 2)
 	}
 
+	ct := req.ContentType()
+	if len(opts.ContentType) > 0 {
+		ct = opts.ContentType
+	}
 	// set timeout in nanoseconds
-	header.Set("Timeout", fmt.Sprintf("%d", opts.RequestTimeout))
+	if opts.StreamTimeout > time.Duration(0) {
+		header.Set("Timeout", fmt.Sprintf("%d", opts.StreamTimeout))
+	}
 	// set the content type for the request
-	header.Set("Content-Type", req.ContentType())
+	header.Set("Content-Type", ct)
 
 	// get codec
-	cf, err := h.newCodec(req.ContentType())
+	cf, err := h.newCodec(ct)
 	if err != nil {
 		return nil, errors.InternalServerError("go.micro.client", err.Error())
 	}
 
-	dialAddr := addr
-	u, err := url.Parse(dialAddr)
-	if err == nil && u.Scheme != "" && u.Host != "" {
-		dialAddr = u.Host
-	}
-	cc, err := h.dialer.DialContext(ctx, "tcp", addr)
+	cc, err := (h.httpcli.Transport).(*http.Transport).DialContext(ctx, "tcp", addr)
 	if err != nil {
 		return nil, errors.InternalServerError("go.micro.client", fmt.Sprintf("Error dialing: %v", err))
 	}
@@ -166,7 +205,8 @@ func (h *httpClient) stream(ctx context.Context, addr string, req client.Request
 		closed:  make(chan bool),
 		opts:    opts,
 		conn:    cc,
-		codec:   cf,
+		ct:      ct,
+		cf:      cf,
 		header:  header,
 		reader:  bufio.NewReader(cc),
 		request: req,
@@ -174,6 +214,13 @@ func (h *httpClient) stream(ctx context.Context, addr string, req client.Request
 }
 
 func (h *httpClient) newCodec(ct string) (codec.Codec, error) {
+	h.RLock()
+	defer h.RUnlock()
+
+	if idx := strings.IndexRune(ct, ';'); idx >= 0 {
+		ct = ct[:idx]
+	}
+
 	if c, ok := h.opts.Codecs[ct]; ok {
 		return c, nil
 	}
@@ -182,9 +229,32 @@ func (h *httpClient) newCodec(ct string) (codec.Codec, error) {
 }
 
 func (h *httpClient) Init(opts ...client.Option) error {
+	if len(opts) == 0 && h.init {
+		return nil
+	}
 	for _, o := range opts {
 		o(&h.opts)
 	}
+
+	if err := h.opts.Broker.Init(); err != nil {
+		return err
+	}
+	if err := h.opts.Tracer.Init(); err != nil {
+		return err
+	}
+	if err := h.opts.Router.Init(); err != nil {
+		return err
+	}
+	if err := h.opts.Logger.Init(); err != nil {
+		return err
+	}
+	if err := h.opts.Meter.Init(); err != nil {
+		return err
+	}
+	if err := h.opts.Transport.Init(); err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -196,8 +266,8 @@ func (h *httpClient) NewMessage(topic string, msg interface{}, opts ...client.Me
 	return newHTTPMessage(topic, msg, h.opts.ContentType, opts...)
 }
 
-func (h *httpClient) NewRequest(service, method string, req interface{}, reqOpts ...client.RequestOption) client.Request {
-	return newHTTPRequest(service, method, req, h.opts.ContentType, reqOpts...)
+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 ...client.CallOption) error {
@@ -217,7 +287,7 @@ 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
-		opt := client.WithRequestTimeout(d.Sub(time.Now()))
+		opt := client.WithRequestTimeout(time.Until(d))
 		opt(&callOpts)
 	}
 
@@ -330,22 +400,22 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 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 _, opt := range opts {
-		opt(&callOpts)
+	for _, o := range opts {
+		o(&callOpts)
 	}
 
 	// check if we already have a deadline
 	d, ok := ctx.Deadline()
-	if !ok {
+	if !ok && callOpts.StreamTimeout > time.Duration(0) {
 		var cancel context.CancelFunc
 		// no deadline so we create a new one
-		ctx, cancel = context.WithTimeout(ctx, callOpts.RequestTimeout)
+		ctx, cancel = context.WithTimeout(ctx, callOpts.StreamTimeout)
 		defer cancel()
 	} else {
 		// got a deadline so no need to setup context
 		// but we need to set the timeout we pass along
-		opt := client.WithRequestTimeout(d.Sub(time.Now()))
-		opt(&callOpts)
+		o := client.WithStreamTimeout(time.Until(d))
+		o(&callOpts)
 	}
 
 	// should we noop right here?
@@ -357,10 +427,7 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...cli
 
 	/*
 		// make copy of call method
-		hstream, err := h.stream()
-		if err != nil {
-			return nil, err
-		}
+		hstream := h.stream
 		// wrap the call in reverse
 		for i := len(callOpts.CallWrappers); i > 0; i-- {
 			hstream = callOpts.CallWrappers[i-1](hstream)
@@ -397,9 +464,9 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...cli
 
 	call := func(i int) (client.Stream, error) {
 		// call backoff first. Someone may want an initial start delay
-		t, err := callOpts.Backoff(ctx, req, i)
-		if err != nil {
-			return nil, errors.InternalServerError("go.micro.client", err.Error())
+		t, cerr := callOpts.Backoff(ctx, req, i)
+		if cerr != nil {
+			return nil, errors.InternalServerError("go.micro.client", cerr.Error())
 		}
 
 		// only sleep if greater than 0
@@ -409,19 +476,19 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...cli
 
 		node := next()
 
-		stream, err := h.stream(ctx, node, req, callOpts)
+		stream, cerr := h.stream(ctx, node, req, callOpts)
 
 		// record the result of the call to inform future routing decisions
-		if verr := h.opts.Selector.Record(node, err); verr != nil {
+		if verr := h.opts.Selector.Record(node, cerr); verr != nil {
 			return nil, verr
 		}
 
 		// try and transform the error to a go-micro error
-		if verr, ok := err.(*errors.Error); ok {
+		if verr, ok := cerr.(*errors.Error); ok {
 			return nil, verr
 		}
 
-		return stream, err
+		return stream, cerr
 	}
 
 	type response struct {
@@ -434,8 +501,8 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...cli
 
 	for i := 0; i <= callOpts.Retries; i++ {
 		go func() {
-			s, err := call(i)
-			ch <- response{s, err}
+			s, cerr := call(i)
+			ch <- response{s, cerr}
 		}()
 
 		select {
@@ -466,7 +533,7 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...cli
 func (h *httpClient) Publish(ctx context.Context, p client.Message, opts ...client.PublishOption) error {
 	options := client.NewPublishOptions(opts...)
 
-	md, ok := metadata.FromContext(ctx)
+	md, ok := metadata.FromOutgoingContext(ctx)
 	if !ok {
 		md = metadata.New(2)
 	}
@@ -506,7 +573,10 @@ func (h *httpClient) Publish(ctx context.Context, p client.Message, opts ...clie
 	return h.opts.Broker.Publish(ctx, topic, &broker.Message{
 		Header: md,
 		Body:   body,
-	}, broker.PublishContext(ctx))
+	},
+		broker.PublishContext(ctx),
+		broker.PublishBodyOnly(options.BodyOnly),
+	)
 }
 
 func (h *httpClient) String() string {
@@ -521,24 +591,38 @@ func NewClient(opts ...client.Option) client.Client {
 	options := client.NewOptions(opts...)
 
 	if len(options.ContentType) == 0 {
-		options.ContentType = "application/json"
+		options.ContentType = DefaultContentType
 	}
 
 	rc := &httpClient{
 		opts: options,
 	}
 
+	dialer, ok := options.Context.Value(httpDialerKey{}).(*net.Dialer)
+	if !ok {
+		dialer = &net.Dialer{
+			Timeout:   30 * time.Second,
+			KeepAlive: 30 * time.Second,
+		}
+	}
+
 	if httpcli, ok := options.Context.Value(httpClientKey{}).(*http.Client); ok {
 		rc.httpcli = httpcli
 	} else {
-		rc.httpcli = http.DefaultClient
+		// TODO customTransport := http.DefaultTransport.(*http.Transport).Clone()
+		tr := &http.Transport{
+			Proxy:                 http.ProxyFromEnvironment,
+			DialContext:           dialer.DialContext,
+			ForceAttemptHTTP2:     true,
+			MaxConnsPerHost:       100,
+			MaxIdleConns:          20,
+			IdleConnTimeout:       60 * time.Second,
+			TLSHandshakeTimeout:   10 * time.Second,
+			ExpectContinueTimeout: 1 * time.Second,
+			TLSClientConfig:       options.TLSConfig,
+		}
+		rc.httpcli = &http.Client{Transport: tr}
 	}
-	if dialer, ok := options.Context.Value(httpDialerKey{}).(*net.Dialer); ok {
-		rc.dialer = dialer
-	} else {
-		rc.dialer = &net.Dialer{}
-	}
-
 	c := client.Client(rc)
 
 	// wrap in reverse
@@ -548,38 +632,3 @@ func NewClient(opts ...client.Option) client.Client {
 
 	return c
 }
-
-func parseRsp(ctx context.Context, hrsp *http.Response, cf codec.Codec, rsp interface{}, opts client.CallOptions) error {
-	b, err := ioutil.ReadAll(hrsp.Body)
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	if hrsp.StatusCode < 400 {
-		// unmarshal
-		if err := cf.Unmarshal(b, rsp); err != nil {
-			return errors.InternalServerError("go.micro.client", err.Error())
-		}
-		return nil
-	}
-
-	errmap, ok := opts.Context.Value(errorMapKey{}).(map[string]interface{})
-	if !ok || errmap == nil {
-		// user not provide map of errors
-		// id: req.Service() ??
-		return errors.New("go.micro.client", string(b), int32(hrsp.StatusCode))
-	}
-
-	if err, ok = errmap[fmt.Sprintf("%d", hrsp.StatusCode)].(error); !ok {
-		err, ok = errmap["default"].(error)
-	}
-	if !ok {
-		return errors.New("go.micro.client", string(b), int32(hrsp.StatusCode))
-	}
-
-	if cerr := cf.Unmarshal(b, err); cerr != nil {
-		return errors.InternalServerError("go.micro.client", cerr.Error())
-	}
-
-	return err
-}

http_test.go

@@ -1,6 +1,8 @@
 package http
 
 import (
+	"net/url"
+	"strings"
 	"testing"
 )
 
@@ -13,16 +15,24 @@ type Request struct {
 
 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)
+	p, m, err := newPathRequest("/api/v1/{name}/list", "GET", "", req, nil)
 	if err != nil {
 		t.Fatal(err)
 	}
-	_, _ = p, m
+	u, err := url.Parse(p)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_ = m
+	parts := strings.Split(u.RawQuery, "&")
+	if len(parts) != 3 {
+		t.Fatalf("invalid path: %v", parts)
+	}
 }
 
 func TestInvalidPath(t *testing.T) {
 	req := &Request{Name: "vtolstov", Field1: "field1", Field2: "field2", Field3: 10}
-	p, m, err := newPathRequest("/api/v1/{xname}/list", "GET", "", req)
+	p, m, err := newPathRequest("/api/v1/{xname}/list", "GET", "", req, nil)
 	if err == nil {
 		t.Fatalf("path param must not be filled")
 	}

message.go

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

options.go

@@ -1,7 +1,6 @@
 package http
 
 import (
-	"crypto/tls"
 	"net"
 	"net/http"
 
@@ -27,34 +26,28 @@ var (
 )
 
 type poolMaxStreams struct{}
-type poolMaxIdle struct{}
-type codecsKey struct{}
-type tlsAuth struct{}
-type maxRecvMsgSizeKey struct{}
-type maxSendMsgSizeKey struct{}
 
-// maximum streams on a connectioin
+// PoolMaxStreams maximum streams on a connectioin
 func PoolMaxStreams(n int) client.Option {
 	return client.SetOption(poolMaxStreams{}, n)
 }
 
-// maximum idle conns of a pool
+type poolMaxIdle struct{}
+
+// PoolMaxIdle maximum idle conns of a pool
 func PoolMaxIdle(d int) client.Option {
 	return client.SetOption(poolMaxIdle{}, d)
 }
 
-// AuthTLS should be used to setup a secure authentication using TLS
-func AuthTLS(t *tls.Config) client.Option {
-	return client.SetOption(tlsAuth{}, t)
-}
+type maxRecvMsgSizeKey struct{}
 
-//
 // MaxRecvMsgSize set the maximum size of message that client can receive.
 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) client.Option {
 	return client.SetOption(maxSendMsgSizeKey{}, s)
@@ -62,12 +55,14 @@ func MaxSendMsgSize(s int) client.Option {
 
 type httpClientKey struct{}
 
+// nolint: golint
 func HTTPClient(c *http.Client) client.Option {
 	return client.SetOption(httpClientKey{}, c)
 }
 
 type httpDialerKey struct{}
 
+// nolint: golint
 func HTTPDialer(d *net.Dialer) client.Option {
 	return client.SetOption(httpDialerKey{}, d)
 }
@@ -95,3 +90,9 @@ type errorMapKey struct{}
 func ErrorMap(m map[string]interface{}) client.CallOption {
 	return client.SetCallOption(errorMapKey{}, m)
 }
+
+type structTagsKey struct{}
+
+func StructTags(tags []string) client.CallOption {
+	return client.SetCallOption(structTagsKey{}, tags)
+}

request.go

@@ -15,7 +15,6 @@ type httpRequest struct {
 
 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
 	}

stream.go

@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"context"
 	"fmt"
+	"io"
 	"net"
 	"net/http"
 	"sync"
@@ -15,23 +16,21 @@ import (
 
 // Implements the streamer interface
 type httpStream struct {
-	sync.RWMutex
-	address string
-	opts    client.CallOptions
-	codec   codec.Codec
-	context context.Context
-	header  http.Header
-	seq     uint64
-	closed  chan bool
 	err     error
 	conn    net.Conn
-	reader  *bufio.Reader
+	cf      codec.Codec
+	context context.Context
 	request client.Request
+	header  http.Header
+	closed  chan bool
+	reader  *bufio.Reader
+	address string
+	ct      string
+	opts    client.CallOptions
+	sync.RWMutex
 }
 
-var (
-	errShutdown = fmt.Errorf("connection is shut down")
-)
+var errShutdown = fmt.Errorf("connection is shut down")
 
 func (h *httpStream) isClosed() bool {
 	select {
@@ -63,7 +62,7 @@ func (h *httpStream) Send(msg interface{}) error {
 		return errShutdown
 	}
 
-	hreq, err := newRequest(h.address, h.request, h.codec, msg, h.opts)
+	hreq, err := newRequest(h.address, h.request, h.ct, h.cf, msg, h.opts)
 	if err != nil {
 		return err
 	}
@@ -88,7 +87,7 @@ func (h *httpStream) Recv(msg interface{}) error {
 	}
 	defer hrsp.Body.Close()
 
-	return parseRsp(h.context, hrsp, h.codec, msg, h.opts)
+	return h.parseRsp(h.context, hrsp, h.cf, msg, h.opts)
 }
 
 func (h *httpStream) Error() error {
@@ -106,3 +105,44 @@ func (h *httpStream) Close() error {
 		return h.conn.Close()
 	}
 }
+
+func (h *httpStream) parseRsp(ctx context.Context, hrsp *http.Response, cf codec.Codec, rsp interface{}, opts client.CallOptions) error {
+	var err error
+
+	select {
+	case <-ctx.Done():
+		err = ctx.Err()
+	default:
+		// fast path return
+		if hrsp.StatusCode == http.StatusNoContent {
+			return nil
+		}
+
+		if hrsp.StatusCode < 400 {
+			if err = cf.ReadBody(hrsp.Body, rsp); err != nil {
+				return errors.InternalServerError("go.micro.client", err.Error())
+			}
+			return nil
+		}
+
+		errmap, ok := opts.Context.Value(errorMapKey{}).(map[string]interface{})
+		if ok && errmap != nil {
+			if err, ok = errmap[fmt.Sprintf("%d", hrsp.StatusCode)].(error); !ok {
+				err, ok = errmap["default"].(error)
+			}
+		}
+		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.ReadBody(hrsp.Body, err); cerr != nil {
+			err = errors.InternalServerError("go.micro.client", cerr.Error())
+		}
+	}
+
+	return err
+}

util.go

@@ -1,12 +1,17 @@
 package http
 
 import (
+	"context"
 	"fmt"
+	"io"
 	"net/http"
+	"net/url"
 	"reflect"
 	"strings"
 	"sync"
 
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/errors"
 	rutil "github.com/unistack-org/micro/v3/util/reflect"
 	util "github.com/unistack-org/micro/v3/util/router"
 )
@@ -16,17 +21,18 @@ var (
 	mu            sync.RWMutex
 )
 
-func newPathRequest(path string, method string, body string, msg interface{}) (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 {
 		return "", nil, err
 	}
 
-	if len(tpl.Fields) == 0 {
-		return path, msg, nil
+	if len(tpl.Fields) > 0 && msg == nil {
+		return "", nil, fmt.Errorf("nil message but path params requested: %v", path)
 	}
 
+	fieldsmapskip := make(map[string]struct{})
 	fieldsmap := make(map[string]string, len(tpl.Fields))
 	for _, v := range tpl.Fields {
 		fieldsmap[v] = ""
@@ -48,7 +54,7 @@ func newPathRequest(path string, method string, body string, msg interface{}) (s
 		tnmsg = tnmsg.Elem()
 	}
 
-	values := make(map[string]string)
+	values := url.Values{}
 	// copy cycle
 	for i := 0; i < tmsg.NumField(); i++ {
 		val := tmsg.Field(i)
@@ -56,20 +62,69 @@ func newPathRequest(path string, method string, body string, msg interface{}) (s
 			continue
 		}
 		fld := tmsg.Type().Field(i)
-		lfield := strings.ToLower(fld.Name)
-		if _, ok := fieldsmap[lfield]; ok {
-			fieldsmap[lfield] = fmt.Sprintf("%v", val.Interface())
-		} else if body == "*" || body == lfield && method != http.MethodGet {
+
+		t := &tag{}
+		for _, tn := range tags {
+			ts, ok := fld.Tag.Lookup(tn)
+			if !ok {
+				continue
+			}
+
+			tp := strings.Split(ts, ",")
+			// special
+			switch tn {
+			case "protobuf": // special
+				for _, p := range tp {
+					if idx := strings.Index(p, "name="); idx > 0 {
+						t = &tag{key: tn, name: p[idx:]}
+					}
+				}
+			default:
+				t = &tag{key: tn, name: tp[0]}
+			}
+			if t.name != "" {
+				break
+			}
+		}
+
+		if t.name == "" {
+			// fallback to lowercase
+			t.name = strings.ToLower(fld.Name)
+		}
+
+		if !val.IsValid() || val.IsZero() {
+			continue
+		}
+
+		// nolint: gocritic
+		if _, ok := fieldsmap[t.name]; ok {
+			switch val.Type().Kind() {
+			case reflect.Slice:
+				for idx := 0; idx < val.Len(); idx++ {
+					values.Add(t.name, fmt.Sprintf("%v", val.Index(idx).Interface()))
+				}
+				fieldsmapskip[t.name] = struct{}{}
+			default:
+				fieldsmap[t.name] = fmt.Sprintf("%v", val.Interface())
+			}
+		} else if (body == "*" || body == t.name) && method != http.MethodGet {
 			tnmsg.Field(i).Set(val)
-		} else if method == http.MethodGet {
-			values[lfield] = fmt.Sprintf("%v", val.Interface())
+		} else {
+			if val.Type().Kind() == reflect.Slice {
+				for idx := 0; idx < val.Len(); idx++ {
+					values.Add(t.name, fmt.Sprintf("%v", val.Index(idx).Interface()))
+				}
+			} else {
+				values.Add(t.name, fmt.Sprintf("%v", val.Interface()))
+			}
 		}
 	}
 
 	// check not filled stuff
 	for k, v := range fieldsmap {
-		if v == "" {
-			return "", nil, fmt.Errorf("path param %s not filled %s", k, v)
+		_, ok := fieldsmapskip[k]
+		if !ok && v == "" {
+			return "", nil, fmt.Errorf("path param %s not filled", k)
 		}
 	}
 
@@ -77,25 +132,21 @@ func newPathRequest(path string, method string, body string, msg interface{}) (s
 	for _, fld := range tpl.Pool {
 		_, _ = b.WriteRune('/')
 		if v, ok := fieldsmap[fld]; ok {
-			_, _ = b.WriteString(v)
+			if v != "" {
+				_, _ = b.WriteString(v)
+			}
 		} else {
 			_, _ = b.WriteString(fld)
 		}
 	}
 
-	if method == http.MethodGet {
-		idx := 0
-		for k, v := range values {
-			if idx == 0 {
-				_, _ = b.WriteRune('?')
-			} else {
-				_, _ = b.WriteRune('&')
-			}
-			_, _ = b.WriteString(k)
-			_, _ = b.WriteRune('=')
-			_, _ = b.WriteString(v)
-			idx++
-		}
+	if len(values) > 0 {
+		_, _ = b.WriteRune('?')
+		_, _ = b.WriteString(values.Encode())
+	}
+
+	if rutil.IsZero(nmsg) {
+		return b.String(), nil, nil
 	}
 
 	return b.String(), nmsg, nil
@@ -122,3 +173,60 @@ func newTemplate(path string) (util.Template, error) {
 
 	return tpl, nil
 }
+
+func (h *httpClient) parseRsp(ctx context.Context, hrsp *http.Response, rsp interface{}, opts client.CallOptions) error {
+	var err error
+
+	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 cerr != nil {
+			return errors.InternalServerError("go.micro.client", cerr.Error())
+		}
+
+		if hrsp.StatusCode < 400 {
+			if err = cf.ReadBody(hrsp.Body, rsp); err != nil {
+				return errors.InternalServerError("go.micro.client", err.Error())
+			}
+			return nil
+		}
+
+		errmap, ok := opts.Context.Value(errorMapKey{}).(map[string]interface{})
+		if ok && errmap != nil {
+			if err, ok = errmap[fmt.Sprintf("%d", hrsp.StatusCode)].(error); !ok {
+				err, ok = errmap["default"].(error)
+			}
+		}
+		if !ok || err == 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.ReadBody(hrsp.Body, err); cerr != nil {
+			err = errors.InternalServerError("go.micro.client", cerr.Error())
+		}
+	}
+
+	return err
+}
+
+type tag struct {
+	key  string
+	name string
+}

util_test.go

@@ -0,0 +1,81 @@
+package http
+
+import (
+	"net/url"
+	"testing"
+)
+
+func TestTemplate(t *testing.T) {
+	tpl, err := newTemplate("/v1/{ClientID}/list")
+	if err != nil {
+		t.Fatal(err)
+	}
+	_ = tpl
+	//	fmt.Printf("%#+v\n", tpl.Pool)
+}
+
+func TestNewPathRequest(t *testing.T) {
+	type Message struct {
+		Name string `json:"name"`
+		Val1 string `protobuf:"bytes,1,opt,name=val1,proto3" json:"val1"`
+		Val3 []string
+		Val2 int64
+	}
+
+	omsg := &Message{Name: "test_name", Val1: "test_val1", Val2: 100, Val3: []string{"slice"}}
+
+	for _, m := range []string{"POST", "PUT", "PATCH", "GET", "DELETE"} {
+		body := ""
+		path, nmsg, err := newPathRequest("/v1/test", m, body, omsg, []string{"protobuf", "json"})
+		if err != nil {
+			t.Fatal(err)
+		}
+		u, err := url.Parse(path)
+		if err != nil {
+			t.Fatal(err)
+		}
+		vals := u.Query()
+		if v, ok := vals["name"]; !ok || v[0] != "test_name" {
+			t.Fatalf("invalid path: %v nmsg: %v", path, nmsg)
+		}
+	}
+}
+
+func TestNewPathVarRequest(t *testing.T) {
+	type Message struct {
+		Name string `json:"name"`
+		Val1 string `protobuf:"bytes,1,opt,name=val1,proto3" json:"val1"`
+		Val3 []string
+		Val2 int64
+	}
+
+	omsg := &Message{Name: "test_name", Val1: "test_val1", Val2: 100, Val3: []string{"slice"}}
+
+	for _, m := range []string{"POST", "PUT", "PATCH", "GET", "DELETE"} {
+		body := ""
+		if m != "GET" {
+			body = "*"
+		}
+		path, nmsg, err := newPathRequest("/v1/test/{val1}", m, body, omsg, []string{"protobuf", "json"})
+		if err != nil {
+			t.Fatal(err)
+		}
+		u, err := url.Parse(path)
+		if err != nil {
+			t.Fatal(err)
+		}
+		if m != "GET" {
+			if _, ok := nmsg.(*Message); !ok {
+				t.Fatalf("invalid nmsg: %#+v\n", nmsg)
+			}
+			if nmsg.(*Message).Name != "test_name" {
+				t.Fatalf("invalid nmsg: %v nmsg: %v", path, nmsg)
+			}
+		} else {
+			vals := u.Query()
+			if v, ok := vals["val2"]; !ok || v[0] != "100" {
+				t.Fatalf("invalid path: %v nmsg: %v", path, nmsg)
+			}
+		}
+	}
+}