.github/workflows/autoapprove.yml

@@ -0,0 +1,20 @@
+name: "autoapprove"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  autoapprove:
+    runs-on: ubuntu-latest
+    steps:
+      - name: approve
+        uses: hmarr/auto-approve-action@v2
+        if: github.actor == 'vtolstov' || github.actor == 'dependabot[bot]'
+        id: approve
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/automerge.yml

@@ -0,0 +1,21 @@
+name: "automerge"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  automerge:
+    runs-on: ubuntu-latest
+    if: github.actor == 'vtolstov'
+    steps:
+      - name: merge
+        id: merge
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.TOKEN}}

.github/workflows/build.yml

@@ -3,6 +3,7 @@ on:
  push:
     branches:
     - master
+    - v3
 jobs:
   test:
     name: test
@@ -11,7 +12,7 @@ jobs:
     - name: setup
       uses: actions/setup-go@v2
       with:
-        go-version: 1.16
+        go-version: 1.17
     - name: checkout
       uses: actions/checkout@v3
     - name: cache
@@ -33,7 +34,7 @@ jobs:
       - name: checkout
         uses: actions/checkout@v3
       - name: lint
-        uses: golangci/golangci-lint-action@v3.1.0
+        uses: golangci/golangci-lint-action@v3
         continue-on-error: true
         with:
           # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.

.github/workflows/codeql-analysis.yml

@@ -47,7 +47,7 @@ jobs:
     - name: setup
       uses: actions/setup-go@v2
       with:
-        go-version: 1.16
+        go-version: 1.17
     # Initializes the CodeQL tools for scanning.
     - name: init
       uses: github/codeql-action/init@v1

.github/workflows/dependabot-automerge.yml

@@ -1,4 +1,4 @@
-name: "prautomerge"
+name: "dependabot-automerge"
 
 on:
   pull_request_target:
@@ -9,21 +9,17 @@ permissions:
   contents: write
 
 jobs:
-  dependabot:
+  automerge:
     runs-on: ubuntu-latest
-    if: ${{ github.actor == 'dependabot[bot]' }}
+    if: github.actor == 'dependabot[bot]'
     steps:
       - name: metadata
         id: metadata
-        uses: dependabot/fetch-metadata@v1.1.1
+        uses: dependabot/fetch-metadata@v1.3.0
         with:
           github-token: "${{ secrets.TOKEN }}"
-      - name: approve
-        run: gh pr review --approve "$PR_URL"
-        env:
-          PR_URL: ${{github.event.pull_request.html_url}}
-          GITHUB_TOKEN: ${{secrets.TOKEN}}
       - name: merge
+        id: merge
         if: ${{contains(steps.metadata.outputs.dependency-names, 'go.unistack.org')}}
         run: gh pr merge --auto --merge "$PR_URL"
         env:

.github/workflows/pr.yml

@@ -3,6 +3,7 @@ on:
   pull_request:
     branches:
     - master
+    - v3
 jobs:
   test:
     name: test
@@ -11,7 +12,7 @@ jobs:
     - name: setup
       uses: actions/setup-go@v2
       with:
-        go-version: 1.16
+        go-version: 1.17
     - name: checkout
       uses: actions/checkout@v3
     - name: cache
@@ -33,7 +34,7 @@ jobs:
       - name: checkout
         uses: actions/checkout@v3
       - name: lint
-        uses: golangci/golangci-lint-action@v3.1.0
+        uses: golangci/golangci-lint-action@v3
         continue-on-error: true
         with:
           # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.

go.mod

@@ -4,7 +4,11 @@ go 1.16
 
 require (
 	github.com/google/uuid v1.3.0
+	go.unistack.org/micro-proto/v3 v3.2.7 // indirect
 	go.unistack.org/micro/v3 v3.8.21
-	google.golang.org/grpc v1.44.0
+	golang.org/x/net v0.0.0-20220225172249-27dd8689420f // indirect
+	golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5 // indirect
+	google.golang.org/genproto v0.0.0-20220310185008-1973136f34c6 // indirect
+	google.golang.org/grpc v1.45.0
 	google.golang.org/protobuf v1.27.1
 )

go.sum

@@ -45,6 +45,7 @@ github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw
 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/google/gnostic v0.6.6 h1:MVSM2r2j9aRUvYNym66JGW96Ddd5MN4sTi59yktb6yk=
 github.com/google/gnostic v0.6.6/go.mod h1:Nm8234We1lq6iB9OmlgNv3nH91XLLVZHCDayfA3xq+E=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
@@ -79,6 +80,8 @@ github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQ
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.unistack.org/micro-proto/v3 v3.2.1 h1:z7+V97LcAwMbBiYStmf8b6fFk2UPJTzni+rxNqk4NrI=
 go.unistack.org/micro-proto/v3 v3.2.1/go.mod h1:ZltVWNECD5yK+40+OCONzGw4OtmSdTpVi8/KFgo9dqM=
+go.unistack.org/micro-proto/v3 v3.2.7 h1:zG6d69kHc+oij2lwQ3AfrCgdjiEVRG2A7TlsxjusWs4=
+go.unistack.org/micro-proto/v3 v3.2.7/go.mod h1:ZltVWNECD5yK+40+OCONzGw4OtmSdTpVi8/KFgo9dqM=
 go.unistack.org/micro/v3 v3.8.21 h1:8vYxtIlPnCBZ888BrQSP6+b0CFQcn5FiaqDpI5XqorQ=
 go.unistack.org/micro/v3 v3.8.21/go.mod h1:aBOCQ6SkAwKMRI7Q1CIsQA2S88ibyJfweJZlT1M2qpE=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
@@ -98,6 +101,8 @@ golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96b
 golang.org/x/net v0.0.0-20210805182204-aaa1db679c0d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20210928044308-7d9f5e0b762b h1:eB48h3HiRycXNy8E0Gf5e0hv7YT6Kt14L/D73G1fuwo=
 golang.org/x/net v0.0.0-20210928044308-7d9f5e0b762b/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.0.0-20220225172249-27dd8689420f h1:oA4XRj0qtSt8Yo1Zms0CUlsT3KG69V2UGQWPBxujDmc=
+golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -113,12 +118,19 @@ golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007 h1:gG67DSER+11cZvqIMb8S8bt0vZtiN6xWYARwirrOSfE=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5 h1:y/woIyUBFbpQGKS0u1aHF/40WUDnek3fPOyD08H5Vng=
+golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 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=
 golang.org/x/text v0.3.5/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/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 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=
@@ -135,6 +147,8 @@ google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfG
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
 google.golang.org/genproto v0.0.0-20220107163113-42d7afdf6368 h1:Et6SkiuvnBn+SgrSYXs/BrUpGB4mbdwt4R3vaPIlicA=
 google.golang.org/genproto v0.0.0-20220107163113-42d7afdf6368/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
+google.golang.org/genproto v0.0.0-20220310185008-1973136f34c6 h1:FglFEfyj61zP3c6LgjmVHxYxZWXYul9oiS1EZqD5gLc=
+google.golang.org/genproto v0.0.0-20220310185008-1973136f34c6/go.mod h1:kGP+zUP2Ddo0ayMi4YuN7C3WZyJvGLZRh8Z5wnAqvEI=
 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 v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
@@ -144,6 +158,8 @@ google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAG
 google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
 google.golang.org/grpc v1.44.0 h1:weqSxi/TMs1SqFRMHCtBgXRs8k3X39QIDEZ0pRcttUg=
 google.golang.org/grpc v1.44.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
+google.golang.org/grpc v1.45.0 h1:NEpgUqV3Z+ZjkqMsxMg11IaDrXY4RY6CQukSGK0uI1M=
+google.golang.org/grpc v1.45.0/go.mod h1:lN7owxKUQEqMfSyQikvvk5tf/6zMPsrK+ONuO11+0rQ=
 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=
@@ -164,6 +180,7 @@ gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
 gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/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=

micro/service_micro.pb.go

@@ -22,9 +22,9 @@ func NewLoggerServiceEndpoints() []api.Endpoint {
 }
 
 type LoggerServiceClient interface {
-	Log(ctx context.Context, req *proto.Message, opts ...client.CallOption) (*proto.Empty, error)
+	Log(ctx context.Context, req *proto.LogReq, opts ...client.CallOption) (*proto.LogRsp, error)
 }
 
 type LoggerServiceServer interface {
-	Log(ctx context.Context, req *proto.Message, rsp *proto.Empty) error
+	Log(ctx context.Context, req *proto.LogReq, rsp *proto.LogRsp) error
 }

micro/service_micro_rpc.pb.go

@@ -21,8 +21,8 @@ func NewLoggerServiceClient(name string, c client.Client) LoggerServiceClient {
 	return &loggerServiceClient{c: c, name: name}
 }
 
-func (c *loggerServiceClient) Log(ctx context.Context, req *proto.Message, opts ...client.CallOption) (*proto.Empty, error) {
+func (c *loggerServiceClient) Log(ctx context.Context, req *proto.LogReq, opts ...client.CallOption) (*proto.LogRsp, error) {
-	rsp := &proto.Empty{}
+	rsp := &proto.LogRsp{}
 	err := c.c.Call(ctx, c.c.NewRequest(c.name, "LoggerService.Log", req), rsp, opts...)
 	if err != nil {
 		return nil, err
@@ -34,13 +34,13 @@ type loggerServiceServer struct {
 	LoggerServiceServer
 }
 
-func (h *loggerServiceServer) Log(ctx context.Context, req *proto.Message, rsp *proto.Empty) error {
+func (h *loggerServiceServer) Log(ctx context.Context, req *proto.LogReq, rsp *proto.LogRsp) error {
 	return h.LoggerServiceServer.Log(ctx, req, rsp)
 }
 
 func RegisterLoggerServiceServer(s server.Server, sh LoggerServiceServer, opts ...server.HandlerOption) error {
 	type loggerService interface {
-		Log(ctx context.Context, req *proto.Message, rsp *proto.Empty) error
+		Log(ctx context.Context, req *proto.LogReq, rsp *proto.LogRsp) error
 	}
 	type LoggerService struct {
 		loggerService

proto/service.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc        v3.19.4
 // source: service.proto
 
 package servicepb
@@ -20,14 +20,14 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
-type Empty struct {
+type LogRsp struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 }
 
-func (x *Empty) Reset() {
+func (x *LogRsp) Reset() {
-	*x = Empty{}
+	*x = LogRsp{}
 	if protoimpl.UnsafeEnabled {
 		mi := &file_service_proto_msgTypes[0]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -35,13 +35,13 @@ func (x *Empty) Reset() {
 	}
 }
 
-func (x *Empty) String() string {
+func (x *LogRsp) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*Empty) ProtoMessage() {}
+func (*LogRsp) ProtoMessage() {}
 
-func (x *Empty) ProtoReflect() protoreflect.Message {
+func (x *LogRsp) ProtoReflect() protoreflect.Message {
 	mi := &file_service_proto_msgTypes[0]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -53,12 +53,12 @@ func (x *Empty) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use Empty.ProtoReflect.Descriptor instead.
+// Deprecated: Use LogRsp.ProtoReflect.Descriptor instead.
-func (*Empty) Descriptor() ([]byte, []int) {
+func (*LogRsp) Descriptor() ([]byte, []int) {
 	return file_service_proto_rawDescGZIP(), []int{0}
 }
 
-type Message struct {
+type LogReq struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
@@ -69,8 +69,8 @@ type Message struct {
 	Fields []*Field `protobuf:"bytes,4,rep,name=fields,proto3" json:"fields,omitempty"`
 }
 
-func (x *Message) Reset() {
+func (x *LogReq) Reset() {
-	*x = Message{}
+	*x = LogReq{}
 	if protoimpl.UnsafeEnabled {
 		mi := &file_service_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -78,13 +78,13 @@ func (x *Message) Reset() {
 	}
 }
 
-func (x *Message) String() string {
+func (x *LogReq) String() string {
 	return protoimpl.X.MessageStringOf(x)
 }
 
-func (*Message) ProtoMessage() {}
+func (*LogReq) ProtoMessage() {}
 
-func (x *Message) ProtoReflect() protoreflect.Message {
+func (x *LogReq) ProtoReflect() protoreflect.Message {
 	mi := &file_service_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
@@ -96,33 +96,33 @@ func (x *Message) ProtoReflect() protoreflect.Message {
 	return mi.MessageOf(x)
 }
 
-// Deprecated: Use Message.ProtoReflect.Descriptor instead.
+// Deprecated: Use LogReq.ProtoReflect.Descriptor instead.
-func (*Message) Descriptor() ([]byte, []int) {
+func (*LogReq) Descriptor() ([]byte, []int) {
 	return file_service_proto_rawDescGZIP(), []int{1}
 }
 
-func (x *Message) GetLevel() int32 {
+func (x *LogReq) GetLevel() int32 {
 	if x != nil {
 		return x.Level
 	}
 	return 0
 }
 
-func (x *Message) GetFormat() string {
+func (x *LogReq) GetFormat() string {
 	if x != nil {
 		return x.Format
 	}
 	return ""
 }
 
-func (x *Message) GetMsg() string {
+func (x *LogReq) GetMsg() string {
 	if x != nil {
 		return x.Msg
 	}
 	return ""
 }
 
-func (x *Message) GetFields() []*Field {
+func (x *LogReq) GetFields() []*Field {
 	if x != nil {
 		return x.Fields
 	}
@@ -135,12 +135,7 @@ type Field struct {
 	unknownFields protoimpl.UnknownFields
 
 	Key string `protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
-	// Types that are assignable to Val:
+	Val string `protobuf:"bytes,2,opt,name=val,proto3" json:"val,omitempty"`
-	//	*Field_DoubleVal
-	//	*Field_FloatVal
-	//	*Field_Int32Val
-	//	*Field_Int64Val
-	Val isField_Val `protobuf_oneof:"val"`
 }
 
 func (x *Field) Reset() {
@@ -182,101 +177,37 @@ func (x *Field) GetKey() string {
 	return ""
 }
 
-func (m *Field) GetVal() isField_Val {
+func (x *Field) GetVal() string {
-	if m != nil {
+	if x != nil {
-		return m.Val
+		return x.Val
 	}
-	return nil
+	return ""
 }
 
-func (x *Field) GetDoubleVal() float64 {
-	if x, ok := x.GetVal().(*Field_DoubleVal); ok {
-		return x.DoubleVal
-	}
-	return 0
-}
-
-func (x *Field) GetFloatVal() float32 {
-	if x, ok := x.GetVal().(*Field_FloatVal); ok {
-		return x.FloatVal
-	}
-	return 0
-}
-
-func (x *Field) GetInt32Val() int32 {
-	if x, ok := x.GetVal().(*Field_Int32Val); ok {
-		return x.Int32Val
-	}
-	return 0
-}
-
-func (x *Field) GetInt64Val() int64 {
-	if x, ok := x.GetVal().(*Field_Int64Val); ok {
-		return x.Int64Val
-	}
-	return 0
-}
-
-type isField_Val interface {
-	isField_Val()
-}
-
-type Field_DoubleVal struct {
-	// https://developers.google.com/protocol-buffers/docs/proto3#scalar
-	DoubleVal float64 `protobuf:"fixed64,2,opt,name=double_val,json=doubleVal,proto3,oneof"`
-}
-
-type Field_FloatVal struct {
-	FloatVal float32 `protobuf:"fixed32,3,opt,name=float_val,json=floatVal,proto3,oneof"`
-}
-
-type Field_Int32Val struct {
-	Int32Val int32 `protobuf:"varint,4,opt,name=int32_val,json=int32Val,proto3,oneof"`
-}
-
-type Field_Int64Val struct {
-	Int64Val int64 `protobuf:"varint,5,opt,name=int64_val,json=int64Val,proto3,oneof"` //1
-}
-
-func (*Field_DoubleVal) isField_Val() {}
-
-func (*Field_FloatVal) isField_Val() {}
-
-func (*Field_Int32Val) isField_Val() {}
-
-func (*Field_Int64Val) isField_Val() {}
-
 var File_service_proto protoreflect.FileDescriptor
 
 var file_service_proto_rawDesc = []byte{
 	0x0a, 0x0d, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
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+	0x74, 0x61, 0x63, 0x6b, 0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x6d, 0x69, 0x63, 0x72, 0x6f, 0x2d, 0x6c,
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+	0x6f, 0x67, 0x67, 0x65, 0x72, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2f, 0x76, 0x33,
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+	0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x3b, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x70, 0x62,
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+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-	0x67, 0x12, 0x12, 0x2e, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x70, 0x62, 0x2e, 0x4d, 0x65,
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-	0x62, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x22, 0x00, 0x42, 0x39, 0x5a, 0x37, 0x67, 0x6f, 0x2e,
-	0x75, 0x6e, 0x69, 0x73, 0x74, 0x61, 0x63, 0x6b, 0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x6d, 0x69, 0x63,
-	0x72, 0x6f, 0x2d, 0x6c, 0x6f, 0x67, 0x67, 0x65, 0x72, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63,
-	0x65, 0x2f, 0x76, 0x33, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x3b, 0x73, 0x65, 0x72, 0x76, 0x69,
-	0x63, 0x65, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -293,14 +224,14 @@ func file_service_proto_rawDescGZIP() []byte {
 
 var file_service_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
 var file_service_proto_goTypes = []interface{}{
-	(*Empty)(nil),   // 0: servicepb.Empty
+	(*LogRsp)(nil), // 0: servicepb.LogRsp
-	(*Message)(nil), // 1: servicepb.Message
+	(*LogReq)(nil), // 1: servicepb.LogReq
 	(*Field)(nil),  // 2: servicepb.Field
 }
 var file_service_proto_depIdxs = []int32{
-	2, // 0: servicepb.Message.fields:type_name -> servicepb.Field
+	2, // 0: servicepb.LogReq.fields:type_name -> servicepb.Field
-	1, // 1: servicepb.LoggerService.Log:input_type -> servicepb.Message
+	1, // 1: servicepb.LoggerService.Log:input_type -> servicepb.LogReq
-	0, // 2: servicepb.LoggerService.Log:output_type -> servicepb.Empty
+	0, // 2: servicepb.LoggerService.Log:output_type -> servicepb.LogRsp
 	2, // [2:3] is the sub-list for method output_type
 	1, // [1:2] is the sub-list for method input_type
 	1, // [1:1] is the sub-list for extension type_name
@@ -315,7 +246,7 @@ func file_service_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_service_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Empty); i {
+			switch v := v.(*LogRsp); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -327,7 +258,7 @@ func file_service_proto_init() {
 			}
 		}
 		file_service_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*Message); i {
+			switch v := v.(*LogReq); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -351,12 +282,6 @@ func file_service_proto_init() {
 			}
 		}
 	}
-	file_service_proto_msgTypes[2].OneofWrappers = []interface{}{
-		(*Field_DoubleVal)(nil),
-		(*Field_FloatVal)(nil),
-		(*Field_Int32Val)(nil),
-		(*Field_Int64Val)(nil),
-	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{

proto/service.proto

@@ -4,12 +4,12 @@ package servicepb;
 option go_package="go.unistack.org/micro-logger-service/v3/proto;servicepb";
 
 service LoggerService {
-	rpc Log(Message) returns (Empty) {};
+	rpc Log(LogReq) returns (LogRsp) {};
 }
 
-message Empty {};
+message LogRsp {};
 
-message Message {
+message LogReq {
   int32 level = 1;
 	string format = 2;
 	string msg = 3;
@@ -18,12 +18,5 @@ message Message {
 
 message Field {
   string key = 1;
-  oneof val {
+  string val = 2;
-    // https://developers.google.com/protocol-buffers/docs/proto3#scalar
-    double double_val = 2;
-    float float_val = 3;
-    int32 int32_val = 4;
-    int64 int64_val = 5;
-    //1
-  };
 };

proto/service_grpc.pb.go

@@ -1,4 +1,8 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-grpc v1.2.0
+// - protoc             v3.19.4
+// source: service.proto
 
 package servicepb
 
@@ -18,7 +22,7 @@ const _ = grpc.SupportPackageIsVersion7
 //
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type LoggerServiceClient interface {
-	Log(ctx context.Context, in *Message, opts ...grpc.CallOption) (*Empty, error)
+	Log(ctx context.Context, in *LogReq, opts ...grpc.CallOption) (*LogRsp, error)
 }
 
 type loggerServiceClient struct {
@@ -29,8 +33,8 @@ func NewLoggerServiceClient(cc grpc.ClientConnInterface) LoggerServiceClient {
 	return &loggerServiceClient{cc}
 }
 
-func (c *loggerServiceClient) Log(ctx context.Context, in *Message, opts ...grpc.CallOption) (*Empty, error) {
+func (c *loggerServiceClient) Log(ctx context.Context, in *LogReq, opts ...grpc.CallOption) (*LogRsp, error) {
-	out := new(Empty)
+	out := new(LogRsp)
 	err := c.cc.Invoke(ctx, "/servicepb.LoggerService/Log", in, out, opts...)
 	if err != nil {
 		return nil, err
@@ -42,7 +46,7 @@ func (c *loggerServiceClient) Log(ctx context.Context, in *Message, opts ...grpc
 // All implementations must embed UnimplementedLoggerServiceServer
 // for forward compatibility
 type LoggerServiceServer interface {
-	Log(context.Context, *Message) (*Empty, error)
+	Log(context.Context, *LogReq) (*LogRsp, error)
 	mustEmbedUnimplementedLoggerServiceServer()
 }
 
@@ -50,7 +54,7 @@ type LoggerServiceServer interface {
 type UnimplementedLoggerServiceServer struct {
 }
 
-func (UnimplementedLoggerServiceServer) Log(context.Context, *Message) (*Empty, error) {
+func (UnimplementedLoggerServiceServer) Log(context.Context, *LogReq) (*LogRsp, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method Log not implemented")
 }
 func (UnimplementedLoggerServiceServer) mustEmbedUnimplementedLoggerServiceServer() {}
@@ -67,7 +71,7 @@ func RegisterLoggerServiceServer(s grpc.ServiceRegistrar, srv LoggerServiceServe
 }
 
 func _LoggerService_Log_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(Message)
+	in := new(LogReq)
 	if err := dec(in); err != nil {
 		return nil, err
 	}
@@ -79,7 +83,7 @@ func _LoggerService_Log_Handler(srv interface{}, ctx context.Context, dec func(i
 		FullMethod: "/servicepb.LoggerService/Log",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(LoggerServiceServer).Log(ctx, req.(*Message))
+		return srv.(LoggerServiceServer).Log(ctx, req.(*LogReq))
 	}
 	return interceptor(ctx, in, info, handler)
 }

service.go

@@ -13,15 +13,29 @@ import (
 	"go.unistack.org/micro/v3/store"
 )
 
+var _ logger.Logger = &serviceLogger{}
+
 type serviceLogger struct {
 	opts    logger.Options
 	service string
 	client  pbmicro.LoggerServiceClient
 	store   store.Store
-	fields  map[string]interface{}
+}
+
+func (l *serviceLogger) Clone(opts ...logger.Option) logger.Logger {
+	nl := &serviceLogger{service: l.service, store: l.store, client: l.client, opts: l.opts}
+	for _, o := range opts {
+		o(&nl.opts)
+	}
+	return nl
+}
+
+func (l *serviceLogger) Level(lvl logger.Level) {
+	l.opts.Level = lvl
 }
 
 func (l *serviceLogger) Init(opts ...logger.Option) error {
+	// TODO: optimize to store only []string as fields
 	for _, o := range opts {
 		o(&l.opts)
 	}
@@ -49,13 +63,9 @@ func (l *serviceLogger) Init(opts ...logger.Option) error {
 	return nil
 }
 
-func (l *serviceLogger) Fields(fields map[string]interface{}) logger.Logger {
+func (l *serviceLogger) Fields(fields ...interface{}) logger.Logger {
-	nl := &serviceLogger{opts: l.opts, client: l.client, store: l.store}
+	// TODO: optimize to store only []string as fields
-	nl.fields = make(map[string]interface{}, len(fields))
+	return l.Clone(logger.WithFields(fields...))
-	for k, v := range fields {
-		nl.fields[k] = v
-	}
-	return nl
 }
 
 func (l *serviceLogger) V(level logger.Level) bool {
@@ -114,17 +124,15 @@ func (l *serviceLogger) Fatalf(ctx context.Context, msg string, args ...interfac
 
 func (l *serviceLogger) Log(ctx context.Context, level logger.Level, args ...interface{}) {
 	msg := l.newMessage(level, "", args...)
-	_, err := l.client.Log(ctx, msg)
+	if _, err := l.client.Log(ctx, msg); err != nil {
-	if err != nil {
+		_ = l.storeMessage(ctx, msg)
-		l.storeMessage(ctx, msg)
 	}
 }
 
 func (l *serviceLogger) Logf(ctx context.Context, level logger.Level, format string, args ...interface{}) {
 	msg := l.newMessage(level, "", args...)
-	_, err := l.client.Log(ctx, msg)
+	if _, err := l.client.Log(ctx, msg); err != nil {
-	if err != nil {
+		_ = l.storeMessage(ctx, msg)
-		l.storeMessage(ctx, msg)
 	}
 }
 
@@ -143,12 +151,18 @@ func NewLogger(opts ...logger.Option) logger.Logger {
 	return l
 }
 
-func (l *serviceLogger) newMessage(level logger.Level, format string, args ...interface{}) *pb.Message {
+func (l *serviceLogger) newMessage(level logger.Level, format string, args ...interface{}) *pb.LogReq {
-	msg := &pb.Message{Level: int32(level), Format: format}
+	msg := &pb.LogReq{Level: int32(level), Format: format, Fields: make([]*pb.Field, 0, len(l.opts.Fields)/2)}
+	for idx := 0; idx < len(l.opts.Fields); idx += 2 {
+		msg.Fields = append(msg.Fields, &pb.Field{
+			Key: fmt.Sprintf("%v", l.opts.Fields[idx]),
+			Val: fmt.Sprintf("%v", l.opts.Fields[idx+1]),
+		})
+	}
 	return msg
 }
 
-func (l *serviceLogger) storeMessage(ctx context.Context, msg *pb.Message) error {
+func (l *serviceLogger) storeMessage(ctx context.Context, msg *pb.LogReq) error {
 	if l.store == nil {
 		return nil
 	}