Merge pull request 'fix gen' (#90) from ff into master

Reviewed-on: #90

go.mod

@@ -5,14 +5,14 @@ go 1.19
 require (
 	github.com/fatih/structtag v1.2.0
 	go.unistack.org/micro-proto/v4 v4.0.1
-	golang.org/x/tools v0.1.12
+	golang.org/x/tools v0.11.0
-	google.golang.org/protobuf v1.28.1
+	google.golang.org/protobuf v1.31.0
 )
 
 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
-	golang.org/x/mod v0.8.0 // indirect
+	golang.org/x/mod v0.12.0 // indirect
-	golang.org/x/sys v0.5.0 // indirect
+	golang.org/x/sys v0.10.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -37,8 +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=
@@ -75,8 +76,8 @@ golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/mod v0.8.0 h1:LUYupSeNrTNCGzR/hVBk2NHZO4hXcVaW1k4Qx7rjPx8=
+golang.org/x/mod v0.12.0 h1:rmsUpXtvNzj340zd98LZ4KntptpfRHwpFOHG188oHXc=
-golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
+golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -92,6 +93,7 @@ golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.3.0 h1:ftCYgMx6zT/asHUrPw8BLLscYtGznsLAnjq5RH9P66E=
 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 v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -100,8 +102,8 @@ 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 v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
+golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 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=
@@ -112,8 +114,8 @@ golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGm
 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 v0.1.12 h1:VveCTK38A2rkS8ZqFY25HIDFscX5X9OoEhJd3quQmXU=
+golang.org/x/tools v0.11.0 h1:EMCa6U9S2LtZXLAMoWiR/R8dAQFRqbAitmbJ2UKhoi8=
-golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.11.0/go.mod h1:anzJrxPjNtfgiYQYirP2CPGzGLxrH2u2QBhn6Bf3qY8=
 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=
@@ -143,8 +145,8 @@ 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 v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
-google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+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=

http.go

@@ -38,14 +38,15 @@ func (g *Generator) httpGenerate(component string, plugin *protogen.Plugin, genC
 		}
 
 		for _, service := range file.Services {
+			g.generateServiceEndpoints(gfile, service, component)
 			if genClient {
-				g.generateServiceClient(gfile, service)
+				g.generateServiceClient(gfile, file, service)
 				g.generateServiceClientMethods(gfile, service, component)
 			}
 			if genServer {
-				generateServiceServer(gfile, service)
+				g.generateServiceServer(gfile, file, service)
 				g.generateServiceServerMethods(gfile, service)
-				g.generateServiceRegister(gfile, service, component)
+				g.generateServiceRegister(gfile, file, service, component)
 			}
 		}
 	}

main.go

@@ -90,6 +90,9 @@ func (g *Generator) Generate(plugin *protogen.Plugin) error {
 			continue
 		case "micro":
 			err = g.microGenerate(component, plugin, genClient, genServer)
+			if err == nil {
+				err = g.writeErrors(plugin)
+			}
 		case "http":
 			err = g.httpGenerate(component, plugin, genClient, genServer)
 		case "grpc", "drpc", "rpc":

micro.go

@@ -40,7 +40,6 @@ func (g *Generator) microGenerate(component string, plugin *protogen.Plugin, gen
 		// generate services
 		for _, service := range file.Services {
 			g.generateServiceName(gfile, service)
-			g.generateServiceEndpoints(gfile, service)
 			if genClient {
 				g.generateServiceClientInterface(gfile, service)
 				g.generateServiceClientStreamInterface(gfile, service)

rpc.go

@@ -37,13 +37,13 @@ func (g *Generator) rpcGenerate(component string, plugin *protogen.Plugin, genCl
 		}
 		for _, service := range file.Services {
 			if genClient {
-				g.generateServiceClient(gfile, service)
+				g.generateServiceClient(gfile, file, service)
 				g.generateServiceClientMethods(gfile, service, component)
 			}
 			if genServer {
-				generateServiceServer(gfile, service)
+				g.generateServiceServer(gfile, file, service)
 				g.generateServiceServerMethods(gfile, service)
-				g.generateServiceRegister(gfile, service, component)
+				g.generateServiceRegister(gfile, file, service, component)
 			}
 			if component == "grpc" && g.reflection {
 				g.generateServiceDesc(gfile, file, service)

util.go

@@ -31,8 +31,8 @@ func unexport(s string) string {
 	return strings.ToLower(s[:1]) + s[1:]
 }
 
-func (g *Generator) generateServiceClient(gfile *protogen.GeneratedFile, service *protogen.Service) {
+func (g *Generator) generateServiceClient(gfile *protogen.GeneratedFile, file *protogen.File, service *protogen.Service) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
 	// if rule, ok := getMicroApiService(service); ok {
 	//		gfile.P("// client wrappers ", strings.Join(rule.ClientWrappers, ", "))
 	//	}
@@ -41,14 +41,18 @@ func (g *Generator) generateServiceClient(gfile *protogen.GeneratedFile, service
 	gfile.P("name string")
 	gfile.P("}")
 
+	if g.standalone {
+		gfile.P("func New", serviceName, "Client(name string, c ", microClientPackage.Ident("Client"), ") ", file.GoImportPath.Ident(serviceName), "Client {")
+	} else {
 		gfile.P("func New", serviceName, "Client(name string, c ", microClientPackage.Ident("Client"), ") ", serviceName, "Client {")
+	}
 	gfile.P("return &", unexport(serviceName), "Client{c: c, name: name}")
 	gfile.P("}")
 	gfile.P()
 }
 
 func (g *Generator) generateServiceClientMethods(gfile *protogen.GeneratedFile, service *protogen.Service, component string) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
 	for _, method := range service.Methods {
 		methodName := fmt.Sprintf("%s.%s", serviceName, method.GoName)
 		if component == "drpc" {
@@ -319,16 +323,20 @@ func (g *Generator) generateServiceClientMethods(gfile *protogen.GeneratedFile,
 	}
 }
 
-func generateServiceServer(gfile *protogen.GeneratedFile, service *protogen.Service) {
+func (g *Generator) generateServiceServer(gfile *protogen.GeneratedFile, file *protogen.File, service *protogen.Service) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
 	gfile.P("type ", unexport(serviceName), "Server struct {")
+	if g.standalone {
+		gfile.P(file.GoImportPath.Ident(serviceName), "Server")
+	} else {
 		gfile.P(serviceName, "Server")
+	}
 	gfile.P("}")
 	gfile.P()
 }
 
 func (g *Generator) generateServiceServerMethods(gfile *protogen.GeneratedFile, service *protogen.Service) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
 	for _, method := range service.Methods {
 		generateServerFuncSignature(gfile, serviceName, method, true)
 		if rule, ok := getMicroApiMethod(method); ok {
@@ -477,9 +485,13 @@ func (g *Generator) generateServiceServerMethods(gfile *protogen.GeneratedFile,
 	}
 }
 
-func (g *Generator) generateServiceRegister(gfile *protogen.GeneratedFile, service *protogen.Service, component string) {
+func (g *Generator) generateServiceRegister(gfile *protogen.GeneratedFile, file *protogen.File, service *protogen.Service, component string) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
-	gfile.P("func Register", serviceName, "Server(s ", microServerPackage.Ident("Server"), ", sh ", serviceName, "Server, opts ...", microServerPackage.Ident("HandlerOption"), ") error {")
+	if g.standalone {
+		gfile.P("func Register", serviceName, "Server(s ", microServerPackage.Ident("Server"), ", sh ", file.GoImportPath.Ident(serviceName), "Server, opts ...", microOptionsPackage.Ident("Option"), ") error {")
+	} else {
+		gfile.P("func Register", serviceName, "Server(s ", microServerPackage.Ident("Server"), ", sh ", serviceName, "Server, opts ...", microOptionsPackage.Ident("Option"), ") error {")
+	}
 	gfile.P("type ", unexport(serviceName), " interface {")
 	for _, method := range service.Methods {
 		generateServerSignature(gfile, serviceName, method, true)
@@ -489,11 +501,15 @@ func (g *Generator) generateServiceRegister(gfile *protogen.GeneratedFile, servi
 	gfile.P(unexport(serviceName))
 	gfile.P("}")
 	gfile.P("h := &", unexport(serviceName), "Server{sh}")
-	gfile.P("var nopts []", microServerPackage.Ident("HandlerOption"))
+	gfile.P("var nopts []", microOptionsPackage.Ident("Option"))
 	if component == "http" {
+		//	if g.standalone {
+		//		gfile.P("nopts = append(nopts, ", microServerHttpPackage.Ident("HandlerEndpoints"), "(", file.GoImportPath.Ident(serviceName), "ServerEndpoints))")
+		//	} else {
 		gfile.P("nopts = append(nopts, ", microServerHttpPackage.Ident("HandlerEndpoints"), "(", serviceName, "ServerEndpoints))")
+		//	}
 	}
-	gfile.P("return s.Handle(s.NewHandler(&", serviceName, "{h}, append(nopts, opts...)...))")
+	gfile.P("return s.Handle(&", serviceName, "{h}, append(nopts, opts...)...)")
 	gfile.P("}")
 }
 
@@ -552,11 +568,11 @@ func (g *Generator) generateClientFuncSignature(gfile *protogen.GeneratedFile, s
 	if !method.Desc.IsStreamingClient() {
 		args = append(args, "req *", gfile.QualifiedGoIdent(method.Input.GoIdent), ", ")
 	}
-	args = append(args, "opts ...", microClientPackage.Ident("CallOption"), ") (")
+	args = append(args, "opts ...", microOptionsPackage.Ident("Option"), ") (")
 	if !method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
 		args = append(args, "*", gfile.QualifiedGoIdent(method.Output.GoIdent))
 	} else {
-		args = append(args, serviceName, "_", method.GoName, "Client")
+		args = append(args, gfile.QualifiedGoIdent(protogen.GoIdent{GoName: serviceName + "_" + method.GoName + "Client", GoImportPath: method.Output.GoIdent.GoImportPath}))
 	}
 	args = append(args, ", error) {")
 	gfile.P(args...)
@@ -570,7 +586,7 @@ func generateClientSignature(gfile *protogen.GeneratedFile, serviceName string,
 	if !method.Desc.IsStreamingClient() {
 		args = append(args, "req *", gfile.QualifiedGoIdent(method.Input.GoIdent), ", ")
 	}
-	args = append(args, "opts ...", microClientPackage.Ident("CallOption"), ") (")
+	args = append(args, "opts ...", microOptionsPackage.Ident("Option"), ") (")
 	if !method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
 		args = append(args, "*", gfile.QualifiedGoIdent(method.Output.GoIdent))
 	} else {
@@ -581,7 +597,7 @@ func generateClientSignature(gfile *protogen.GeneratedFile, serviceName string,
 }
 
 func (g *Generator) generateServiceClientInterface(gfile *protogen.GeneratedFile, service *protogen.Service) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
 	gfile.P("type ", serviceName, "Client interface {")
 	for _, method := range service.Methods {
 		generateClientSignature(gfile, serviceName, method)
@@ -591,7 +607,7 @@ func (g *Generator) generateServiceClientInterface(gfile *protogen.GeneratedFile
 }
 
 func (g *Generator) generateServiceServerInterface(gfile *protogen.GeneratedFile, service *protogen.Service) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
 	gfile.P("type ", serviceName, "Server interface {")
 	for _, method := range service.Methods {
 		generateServerSignature(gfile, serviceName, method, false)
@@ -601,7 +617,7 @@ func (g *Generator) generateServiceServerInterface(gfile *protogen.GeneratedFile
 }
 
 func (g *Generator) generateServiceClientStreamInterface(gfile *protogen.GeneratedFile, service *protogen.Service) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
 	for _, method := range service.Methods {
 		if !method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
 			continue
@@ -613,7 +629,7 @@ func (g *Generator) generateServiceClientStreamInterface(gfile *protogen.Generat
 		gfile.P("RecvMsg(msg interface{}) error")
 		if method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
 			gfile.P("CloseAndRecv() (*", gfile.QualifiedGoIdent(method.Output.GoIdent), ", error)")
-			gfile.P("CloseSend() () error")
+			gfile.P("CloseSend() error")
 		}
 		gfile.P("Close() error")
 		if method.Desc.IsStreamingClient() {
@@ -629,7 +645,7 @@ func (g *Generator) generateServiceClientStreamInterface(gfile *protogen.Generat
 }
 
 func (g *Generator) generateServiceServerStreamInterface(gfile *protogen.GeneratedFile, service *protogen.Service) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
 	for _, method := range service.Methods {
 		if !method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
 			continue
@@ -641,7 +657,7 @@ func (g *Generator) generateServiceServerStreamInterface(gfile *protogen.Generat
 		gfile.P("RecvMsg(msg interface{}) error")
 		if method.Desc.IsStreamingClient() && !method.Desc.IsStreamingServer() {
 			gfile.P("SendAndClose(msg *", gfile.QualifiedGoIdent(method.Output.GoIdent), ") error")
-			gfile.P("CloseSend() error")
+			//	gfile.P("CloseSend() error")
 		}
 		gfile.P("Close() error")
 		if method.Desc.IsStreamingClient() {
@@ -776,6 +792,35 @@ func (g *Generator) getGoIdentByXref(xref string) (protogen.GoIdent, error) {
 	return protogen.GoIdent{}, fmt.Errorf("not found")
 }
 
+func (g *Generator) getMessageByXref(xref string) (*protogen.Message, error) {
+	idx := strings.LastIndex(xref, ".")
+	pkg := xref[:idx]
+	msg := xref[idx+1:]
+	for _, file := range g.plugin.Files {
+		if strings.Compare(pkg, *(file.Proto.Package)) != 0 {
+			continue
+		}
+		if pmsg, err := getProtoMessage(file.Messages, msg); err == nil {
+			return pmsg, nil
+		}
+	}
+	return nil, fmt.Errorf("not found")
+}
+
+func getProtoMessage(messages []*protogen.Message, msg string) (*protogen.Message, error) {
+	for _, message := range messages {
+		if strings.Compare(msg, message.GoIdent.GoName) == 0 {
+			return message, nil
+		}
+		if len(message.Messages) > 0 {
+			if pmsg, err := getProtoMessage(message.Messages, msg); err == nil {
+				return pmsg, nil
+			}
+		}
+	}
+	return nil, fmt.Errorf("not found")
+}
+
 func getGoIdentByMessage(messages []*protogen.Message, msg string) (protogen.GoIdent, error) {
 	for _, message := range messages {
 		if strings.Compare(msg, message.GoIdent.GoName) == 0 {
@@ -791,7 +836,7 @@ func getGoIdentByMessage(messages []*protogen.Message, msg string) (protogen.GoI
 }
 
 func (g *Generator) generateServiceDesc(gfile *protogen.GeneratedFile, file *protogen.File, service *protogen.Service) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
 
 	gfile.P("// ", serviceName, "_ServiceDesc", " is the ", grpcPackage.Ident("ServiceDesc"), " for ", serviceName, " service.")
 	gfile.P("// It's only intended for direct use with ", grpcPackage.Ident("RegisterService"), ",")
@@ -833,14 +878,17 @@ func (g *Generator) generateServiceDesc(gfile *protogen.GeneratedFile, file *pro
 }
 
 func (g *Generator) generateServiceName(gfile *protogen.GeneratedFile, service *protogen.Service) {
-	serviceName := service.GoName
+	serviceName := getServiceName(service)
 	gfile.P("var (")
 	gfile.P(serviceName, "Name", "=", `"`, serviceName, `"`)
 	gfile.P(")")
 }
 
-func (g *Generator) generateServiceEndpoints(gfile *protogen.GeneratedFile, service *protogen.Service) {
+func (g *Generator) generateServiceEndpoints(gfile *protogen.GeneratedFile, service *protogen.Service, component string) {
-	serviceName := service.GoName
+	if component != "http" {
+		return
+	}
+	serviceName := getServiceName(service)
 
 	gfile.P("var (")
 	gfile.P(serviceName, "ServerEndpoints = []", microServerHttpPackage.Ident("EndpointMetadata"), "{")
@@ -865,3 +913,122 @@ func (g *Generator) generateServiceEndpoints(gfile *protogen.GeneratedFile, serv
 	gfile.P("}")
 	gfile.P(")")
 }
+
+func getServiceName(s *protogen.Service) string {
+	if strings.HasSuffix(s.GoName, "Service") {
+		return s.GoName
+	}
+	return s.GoName + "Service"
+}
+
+func (g *Generator) writeErrors(plugin *protogen.Plugin) error {
+	errorsMap := make(map[string]struct{})
+
+	for _, file := range plugin.Files {
+		for _, service := range file.Services {
+			for _, method := range service.Methods {
+				if method.Desc.Options() != nil {
+					if proto.HasExtension(method.Desc.Options(), v2.E_Openapiv2Operation) {
+						opts := proto.GetExtension(method.Desc.Options(), v2.E_Openapiv2Operation)
+						if opts != nil {
+							r := opts.(*v2.Operation)
+							if r.Responses == nil {
+								continue
+							}
+
+							for _, rsp := range r.Responses.ResponseCode {
+								if schema := rsp.Value.GetJsonReference(); schema != nil {
+									xref := schema.XRef
+									if xref[0] == '.' {
+										xref = xref[1:]
+									}
+									errorsMap[xref] = struct{}{}
+								}
+							}
+						}
+					}
+					if proto.HasExtension(method.Desc.Options(), v3.E_Openapiv3Operation) {
+						opts := proto.GetExtension(method.Desc.Options(), v3.E_Openapiv3Operation)
+						if opts != nil {
+							r := opts.(*v3.Operation)
+							if r.Responses == nil {
+								continue
+							}
+							resps := r.Responses.ResponseOrReference
+							if r.Responses.GetDefault() != nil {
+								resps = append(resps, &v3.NamedResponseOrReference{Name: "default", Value: r.Responses.GetDefault()})
+							}
+							for _, rsp := range resps {
+								if schema := rsp.Value.GetReference(); schema != nil {
+									xref := schema.XRef
+									if xref[0] == '.' {
+										xref = xref[1:]
+									}
+									errorsMap[xref] = struct{}{}
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+	}
+
+	var gfile *protogen.GeneratedFile
+	var importPath protogen.GoImportPath
+
+	if len(errorsMap) > 0 {
+
+		var packageName string
+
+		for _, file := range plugin.Files {
+			if !file.Generate {
+				continue
+			}
+			if len(file.Services) == 0 {
+				continue
+			}
+			packageName = string(file.GoPackageName)
+			importPath = file.GoImportPath
+			break
+		}
+
+		if g.standalone {
+			importPath = "."
+		}
+
+		gfile = plugin.NewGeneratedFile("micro_errors.pb.go", importPath)
+
+		gfile.P("// Code generated by protoc-gen-go-micro. DO NOT EDIT.")
+		gfile.P("// protoc-gen-go-micro version: " + versionComment)
+		gfile.P()
+		gfile.P("package ", packageName)
+		gfile.P()
+
+		gfile.Import(protojsonPackage)
+
+		gfile.P("var (")
+		gfile.P("marshaler = ", protojsonPackage.Ident("MarshalOptions"), "{}")
+		gfile.P(")")
+	}
+
+	for xref := range errorsMap {
+		msg, err := g.getMessageByXref(xref)
+		if err != nil {
+			return err
+		}
+
+		for _, field := range msg.Fields {
+			if field.GoName == "Error" {
+				return fmt.Errorf("failed generate Error() string interface for %s message %s already have Error field", field.Location.SourceFile, msg.Desc.Name())
+			}
+		}
+		gfile.P(`func (m *`, msg.GoIdent.GoName, `) Error() string {`)
+		gfile.P(`buf, _ := marshaler.Marshal(m)`)
+		gfile.P("return string(buf)")
+		gfile.P(`}`)
+		// log.Printf("xref %#+v %v\n", msg.GoIdent.GoName, err)
+	}
+
+	return nil
+}

variables.go

@@ -16,10 +16,12 @@ var (
 	microServerPackage     = protogen.GoImportPath("go.unistack.org/micro/v4/server")
 	microClientHttpPackage = protogen.GoImportPath("go.unistack.org/micro-client-http/v4")
 	microServerHttpPackage = protogen.GoImportPath("go.unistack.org/micro-server-http/v4")
-	microCodecPackage      = protogen.GoImportPath("go.unistack.org/micro/v4/codec")
+	microCodecPackage      = protogen.GoImportPath("go.unistack.org/micro-proto/v4/codec")
 	microErrorsPackage     = protogen.GoImportPath("go.unistack.org/micro/v4/errors")
+	microOptionsPackage    = protogen.GoImportPath("go.unistack.org/micro/v4/options")
 	grpcPackage            = protogen.GoImportPath("google.golang.org/grpc")
+	protojsonPackage       = protogen.GoImportPath("google.golang.org/protobuf/encoding/protojson")
 	timePackage            = protogen.GoImportPath("time")
 	deprecationComment     = "// Deprecated: Do not use."
-	versionComment         = "v4.0.0"
+	versionComment         = "v4.0.2"
 )