Merge pull request 'add request id in context' (#99) from rq into v3

Reviewed-on: #99

go.mod

@@ -2,4 +2,4 @@ module go.unistack.org/micro-wrapper-requestid/v3
 
 go 1.16
 
-require go.unistack.org/micro/v3 v3.10.14
+require go.unistack.org/micro/v3 v3.10.19

go.sum

@@ -1,8 +1,7 @@
-github.com/imdario/mergo v0.3.13/go.mod h1:4lJ1jqUDcsbIECGy0RUJAXNIhg+6ocWgb1ALK2O4oXg=
+github.com/imdario/mergo v0.3.14/go.mod h1:WBLT9ZmE3lPoWsEzCh9LPo3TiwVN+ZKEjmz+hD27ysY=
 github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
 github.com/silas/dag v0.0.0-20211117232152-9d50aa809f35/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
-go.unistack.org/micro/v3 v3.10.14 h1:7fgLpwGlCN67twhwtngJDEQvrMkUBDSA5vzZqxIDqNE=
-go.unistack.org/micro/v3 v3.10.14/go.mod h1:uMAc0U/x7dmtICCrblGf0ZLgYegu3VwQAquu+OFCw1Q=
+go.unistack.org/micro/v3 v3.10.19 h1:JtPacglETxHyb+GiuMdfxqGtnWSTYXPQm6PlDQfNIl8=
+go.unistack.org/micro/v3 v3.10.19/go.mod h1:XIArw29f0b3uvF4cq96X/nQt2f0J2OGnjh8J+DBbC0s=
 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=

requestid.go

@@ -10,6 +10,8 @@ import (
 	"go.unistack.org/micro/v3/util/id"
 )
 
+var XRequestIDKey struct{}
+
 // DefaultMetadataKey contains metadata key
 var DefaultMetadataKey = textproto.CanonicalMIMEHeaderKey("x-request-id")
 
@@ -40,7 +42,8 @@ var DefaultMetadataFunc = func(ctx context.Context) (context.Context, error) {
 	omd.Set(DefaultMetadataKey, v)
 	ctx = metadata.NewIncomingContext(ctx, imd)
 	ctx = metadata.NewOutgoingContext(ctx, omd)
-	return ctx, nil
+
+	return context.WithValue(ctx, XRequestIDKey, v), nil
 }
 
 type wrapper struct {