Merge pull request 'move to micro v4' (#109) from v4 into master

Reviewed-on: #109

README.md

@@ -5,14 +5,14 @@ This plugin is a http client for micro.
 ## Overview
 
 The http client wraps `net/http` to provide a robust micro client with service discovery, load balancing and streaming. 
-It complies with the [micro.Client](https://godoc.org/go.unistack.org/micro-client-http/v3#Client) interface.
+It complies with the [micro.Client](https://godoc.org/go.unistack.org/micro-client-http/v4#Client) interface.
 
 ## Usage
 
 ### Use directly
 
 ```go
-import "go.unistack.org/micro-client-http/v3"
+import "go.unistack.org/micro-client-http/v4"
 
 service := micro.NewService(
 	micro.Name("my.service"),

go.mod

@@ -1,5 +1,5 @@
-module go.unistack.org/micro-client-http/v3
+module go.unistack.org/micro-client-http/v4
 
-go 1.18
+go 1.19
 
-require go.unistack.org/micro/v3 v3.10.16
+require go.unistack.org/micro/v4 v4.0.1

go.sum

@@ -1,8 +1,2 @@
-github.com/imdario/mergo v0.3.13/go.mod h1:4lJ1jqUDcsbIECGy0RUJAXNIhg+6ocWgb1ALK2O4oXg=
+go.unistack.org/micro/v4 v4.0.1 h1:xo1IxbVfgh8i0eY0VeYa3cbb13u5n/Mxnp3FOgWD4Jo=
-github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
+go.unistack.org/micro/v4 v4.0.1/go.mod h1:p/J5UcSJjfHsWGT31uKoghQ5rUQZzQJBAFy+Z4+ZVMs=
-github.com/silas/dag v0.0.0-20211117232152-9d50aa809f35/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
-go.unistack.org/micro/v3 v3.10.16 h1:2er/SKKYbV60M+UuJM4eYCF0MZYAIq/yNUrAbTfgq8Q=
-go.unistack.org/micro/v3 v3.10.16/go.mod h1:uMAc0U/x7dmtICCrblGf0ZLgYegu3VwQAquu+OFCw1Q=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

http.go

@@ -1,5 +1,5 @@
 // Package http provides a http client
-package http // import "go.unistack.org/micro-client-http/v3"
+package http // import "go.unistack.org/micro-client-http/v4"
 
 import (
 	"bufio"
@@ -15,14 +15,14 @@ import (
 	"sync"
 	"time"
 
-	"go.unistack.org/micro/v3/broker"
+	"go.unistack.org/micro/v4/broker"
-	"go.unistack.org/micro/v3/client"
+	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v3/codec"
+	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v3/errors"
+	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v4/logger"
-	"go.unistack.org/micro/v3/metadata"
+	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v3/selector"
+	"go.unistack.org/micro/v4/selector"
-	rutil "go.unistack.org/micro/v3/util/reflect"
+	rutil "go.unistack.org/micro/v4/util/reflect"
 )
 
 var DefaultContentType = "application/json"

message.go

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

options.go

@@ -4,8 +4,8 @@ import (
 	"net"
 	"net/http"
 
-	"go.unistack.org/micro/v3/client"
+	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v3/metadata"
+	"go.unistack.org/micro/v4/metadata"
 )
 
 var (

request.go

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

stream.go

@@ -2,19 +2,17 @@ package http
 
 import (
 	"bufio"
-	"bytes"
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net"
 	"net/http"
 	"sync"
 
-	"go.unistack.org/micro/v3/client"
+	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v3/codec"
+	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v3/errors"
+	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v4/logger"
 )
 
 // Implements the streamer interface
@@ -121,59 +119,55 @@ func (h *httpStream) Close() error {
 
 func (h *httpStream) parseRsp(ctx context.Context, log logger.Logger, hrsp *http.Response, cf codec.Codec, rsp interface{}, opts client.CallOptions) error {
 	var err error
+	var buf []byte
+
+	// fast path return
+	if hrsp.StatusCode == http.StatusNoContent {
+		return nil
+	}
 
 	select {
 	case <-ctx.Done():
 		err = ctx.Err()
 	default:
-		// fast path return
+		if hrsp.Body != nil {
-		if hrsp.StatusCode == http.StatusNoContent {
+			buf, err = io.ReadAll(hrsp.Body)
-			return nil
+			if err != nil {
+				if log.V(logger.ErrorLevel) {
+					log.Errorf(ctx, "failed to read body: %v", err)
+				}
+				return errors.InternalServerError("go.micro.client", string(buf))
+			}
+		}
+
+		if log.V(logger.DebugLevel) {
+			log.Debugf(ctx, "response %s with %v", buf, hrsp.Header)
 		}
 
 		if hrsp.StatusCode < 400 {
-			if log.V(logger.DebugLevel) {
+			if err = cf.Unmarshal(buf, rsp); err != nil {
-				buf, rerr := io.ReadAll(hrsp.Body)
-				log.Debugf(ctx, "response %s with %v", buf, hrsp.Header)
-				if err != nil {
-					return errors.InternalServerError("go.micro.client", rerr.Error())
-				}
-				hrsp.Body = ioutil.NopCloser(bytes.NewBuffer(buf))
-			}
-			if err = cf.ReadBody(hrsp.Body, rsp); err != nil {
 				return errors.InternalServerError("go.micro.client", err.Error())
 			}
 			return nil
 		}
 
+		var rerr interface{}
 		errmap, ok := opts.Context.Value(errorMapKey{}).(map[string]interface{})
 		if ok && errmap != nil {
-			if err, ok = errmap[fmt.Sprintf("%d", hrsp.StatusCode)].(error); !ok {
+			if rerr, ok = errmap[fmt.Sprintf("%d", hrsp.StatusCode)].(error); !ok {
-				err, ok = errmap["default"].(error)
+				rerr, ok = errmap["default"].(error)
 			}
 		}
-		if !ok || err == nil {
+		if !ok || rerr == nil {
-			buf, cerr := io.ReadAll(hrsp.Body)
-			if log.V(logger.DebugLevel) {
-				log.Debugf(ctx, "response %s with %v", buf, hrsp.Header)
-			}
-			if cerr != nil {
-				return errors.InternalServerError("go.micro.client", cerr.Error())
-			}
 			return errors.New("go.micro.client", string(buf), int32(hrsp.StatusCode))
 		}
 
-		if log.V(logger.DebugLevel) {
+		if cerr := cf.Unmarshal(buf, rerr); cerr != nil {
-			buf, rerr := io.ReadAll(hrsp.Body)
+			return errors.InternalServerError("go.micro.client", cerr.Error())
-			log.Debugf(ctx, "response %s with %v", buf, hrsp.Header)
-			if err != nil {
-				return errors.InternalServerError("go.micro.client", rerr.Error())
-			}
-			hrsp.Body = ioutil.NopCloser(bytes.NewBuffer(buf))
 		}
 
-		if cerr := cf.ReadBody(hrsp.Body, err); cerr != nil {
+		if err, ok = rerr.(error); !ok {
-			err = errors.InternalServerError("go.micro.client", cerr.Error())
+			err = &Error{rerr}
 		}
 	}
 

util.go

@@ -1,21 +1,19 @@
 package http
 
 import (
-	"bytes"
 	"context"
 	"fmt"
 	"io"
-	"io/ioutil"
 	"net/http"
 	"net/url"
 	"reflect"
 	"strings"
 	"sync"
 
-	"go.unistack.org/micro/v3/client"
+	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v3/errors"
+	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v4/logger"
-	rutil "go.unistack.org/micro/v3/util/reflect"
+	rutil "go.unistack.org/micro/v4/util/reflect"
 )
 
 var (
@@ -247,45 +245,48 @@ func newTemplate(path string) ([]string, error) {
 
 func (h *httpClient) parseRsp(ctx context.Context, hrsp *http.Response, rsp interface{}, opts client.CallOptions) error {
 	var err error
+	var buf []byte
+
+	// fast path return
+	if hrsp.StatusCode == http.StatusNoContent {
+		return nil
+	}
 
 	select {
 	case <-ctx.Done():
 		err = ctx.Err()
 	default:
-		// fast path return
-		if hrsp.StatusCode == http.StatusNoContent {
-			return nil
-		}
 		ct := DefaultContentType
 
 		if htype := hrsp.Header.Get("Content-Type"); htype != "" {
 			ct = htype
 		}
 
-		cf, cerr := h.newCodec(ct)
+		if hrsp.Body != nil {
-		if hrsp.StatusCode >= 400 && cerr != nil {
+			buf, err = io.ReadAll(hrsp.Body)
-			var buf []byte
+			if err != nil {
-			if hrsp.Body != nil {
+				if h.opts.Logger.V(logger.ErrorLevel) {
-				buf, err = io.ReadAll(hrsp.Body)
-				if err != nil && h.opts.Logger.V(logger.ErrorLevel) {
 					h.opts.Logger.Errorf(ctx, "failed to read body: %v", err)
 				}
+				return errors.InternalServerError("go.micro.client", string(buf))
 			}
+		}
+
+		cf, cerr := h.newCodec(ct)
+		if cerr != nil {
 			if h.opts.Logger.V(logger.DebugLevel) {
-				h.opts.Logger.Debugf(ctx, "response %s with %v", buf, hrsp.Header)
+				h.opts.Logger.Debugf(ctx, "response with %v unknown content-type %s", hrsp.Header, ct, buf)
-			}
-			// response like text/plain or something else, return original error
-			return errors.New("go.micro.client", string(buf), int32(hrsp.StatusCode))
-		} else if cerr != nil {
-			if h.opts.Logger.V(logger.DebugLevel) {
-				h.opts.Logger.Debugf(ctx, "response with %v unknown content-type", hrsp.Header, ct)
 			}
 			return errors.InternalServerError("go.micro.client", cerr.Error())
 		}
 
+		if h.opts.Logger.V(logger.DebugLevel) {
+			h.opts.Logger.Debugf(ctx, "response %s with %v", buf, hrsp.Header)
+		}
+
 		// succeseful response
 		if hrsp.StatusCode < 400 {
-			if err = cf.ReadBody(hrsp.Body, rsp); err != nil {
+			if err = cf.Unmarshal(buf, rsp); err != nil {
 				return errors.InternalServerError("go.micro.client", err.Error())
 			}
 			return nil
@@ -302,26 +303,10 @@ func (h *httpClient) parseRsp(ctx context.Context, hrsp *http.Response, rsp inte
 		}
 
 		if !ok || rerr == nil {
-			buf, rerr := io.ReadAll(hrsp.Body)
-			if h.opts.Logger.V(logger.DebugLevel) {
-				h.opts.Logger.Debugf(ctx, "response %s with %v", buf, hrsp.Header)
-			}
-			if rerr != nil {
-				return errors.InternalServerError("go.micro.client", rerr.Error())
-			}
 			return errors.New("go.micro.client", string(buf), int32(hrsp.StatusCode))
 		}
 
-		if h.opts.Logger.V(logger.DebugLevel) {
+		if cerr := cf.Unmarshal(buf, rerr); cerr != nil {
-			buf, rerr := io.ReadAll(hrsp.Body)
-			h.opts.Logger.Debugf(ctx, "response %s with %v", buf, hrsp.Header)
-			if err != nil {
-				return errors.InternalServerError("go.micro.client", rerr.Error())
-			}
-			hrsp.Body = ioutil.NopCloser(bytes.NewBuffer(buf))
-		}
-
-		if cerr := cf.ReadBody(hrsp.Body, rerr); cerr != nil {
 			return errors.InternalServerError("go.micro.client", cerr.Error())
 		}