use native nats headers

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

.github/workflows/codeql-analysis.yml

@@ -12,6 +12,10 @@
 name: "CodeQL"
 
 on:
+  workflow_run:
+    workflows: ["prbuild"]
+    types:
+      - completed
   push:
     branches: [ master ]
   pull_request:

.github/workflows/dependabot-automerge.yml

@@ -0,0 +1,66 @@
+name: "prautomerge"
+
+on:
+  workflow_run:
+    workflows: ["prbuild"]
+    types:
+      - completed
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  Dependabot-Automerge:
+    runs-on: ubuntu-latest
+    # Contains workaround to execute if dependabot updates the PR by checking for the base branch in the linked PR
+    # The the github.event.workflow_run.event value is 'push' and not 'pull_request'
+    # dont work with multiple workflows when last returns success
+    if: >-
+      github.event.workflow_run.conclusion == 'success'
+      && github.actor == 'dependabot[bot]'
+      && github.event.sender.login == 'dependabot[bot]'
+      && github.event.sender.type == 'Bot'
+      && (github.event.workflow_run.event == 'pull_request'
+          || (github.event.workflow_run.event == 'push' && github.event.workflow_run.pull_requests[0].base.ref == github.event.repository.default_branch ))
+    steps:
+      - name: Approve Changes and Merge changes if label 'dependencies' is set
+        uses: actions/github-script@v4
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            console.log(context.payload.workflow_run);
+            
+            var labelNames = await github.paginate(
+              github.issues.listLabelsOnIssue,
+              {
+                repo: context.repo.repo,
+                owner: context.repo.owner,
+                issue_number: context.payload.workflow_run.pull_requests[0].number,
+              },
+              (response) => response.data.map(
+                (label) => label.name
+              )
+            );
+
+            console.log(labelNames);
+
+            if (labelNames.includes('dependencies')) {
+              console.log('Found label');
+
+              await github.pulls.createReview({
+                repo: context.repo.repo,
+                owner: context.repo.owner,
+                pull_number: context.payload.workflow_run.pull_requests[0].number,
+                event: 'APPROVE'
+              });
+              console.log('Approved PR');
+
+              await github.pulls.merge({
+                repo: context.repo.repo,
+                owner: context.repo.owner,
+                pull_number: context.payload.workflow_run.pull_requests[0].number,
+              });
+
+              console.log('Merged PR');
+            }

go.mod

@@ -4,9 +4,8 @@ go 1.16
 
 require (
 	github.com/nats-io/nats-server/v2 v2.5.0 // indirect
-	github.com/nats-io/nats.go v1.12.1
+	github.com/nats-io/nats.go v1.12.3
-	github.com/unistack-org/micro-proto v0.0.9 // indirect
+	github.com/unistack-org/micro/v3 v3.7.3
-	github.com/unistack-org/micro/v3 v3.7.0
 	golang.org/x/crypto v0.0.0-20210817164053-32db794688a5 // indirect
 	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect

go.sum

@@ -1,98 +1,58 @@
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@@ -101,39 +61,20 @@ golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9sn
 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 v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/time v0.0.0-20200416051211-89c76fbcd5d1 h1:NusfzzA6yGQ+ua51ck7E3omNUX/JuqbFSaRGqU8CcLI=
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 google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
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 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
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nats.go

@@ -15,6 +15,12 @@ import (
 	"golang.org/x/sync/errgroup"
 )
 
+var pPool = sync.Pool{
+	New: func() interface{} {
+		return &publication{msg: broker.NewMessage("")}
+	},
+}
+
 type natsBroker struct {
 	sync.Once
 	sync.RWMutex
@@ -33,17 +39,17 @@ type natsBroker struct {
 }
 
 type publication struct {
-	t   string
+	topic string
-	err error
+	err   error
-	m   *broker.Message
+	msg   *broker.Message
 }
 
 func (p *publication) Topic() string {
-	return p.t
+	return p.topic
 }
 
 func (p *publication) Message() *broker.Message {
-	return p.m
+	return p.msg
 }
 
 func (p *publication) Ack() error {
@@ -186,19 +192,33 @@ func (n *natsBroker) Options() broker.Options {
 	return n.opts
 }
 
-func (n *natsBroker) BatchPublish(ctx context.Context, msg []*broker.Message, opts ...broker.PublishOption) error {
+func (n *natsBroker) BatchPublish(ctx context.Context, p []*broker.Message, opts ...broker.PublishOption) error {
-	msgs := make(map[string][][]byte)
+	var err error
+	msgs := make([]*nats.Msg, len(p))
 	var wg sync.WaitGroup
 
-	wg.Add(len(msg))
+	wg.Add(len(p))
 
-	for _, m := range msg {
+	options := broker.NewPublishOptions(opts...)
-		b, err := n.opts.Codec.Marshal(m)
+
-		if err != nil {
+	for _, m := range p {
-			return err
+		rec := &nats.Msg{}
+		rec.Subject, _ = m.Header.Get(metadata.HeaderTopic)
+		if options.BodyOnly {
+			rec.Data = m.Body
+		} else if n.opts.Codec.String() == "noop" {
+			rec.Data = m.Body
+			rec.Header = make(nats.Header, len(m.Header))
+			for k, v := range m.Header {
+				rec.Header.Add(k, v)
+			}
+		} else {
+			rec.Data, err = n.opts.Codec.Marshal(m)
+			if err != nil {
+				return err
+			}
 		}
-		topic, _ := m.Header.Get(metadata.HeaderTopic)
+		msgs = append(msgs, rec)
-		msgs[topic] = append(msgs[topic], b)
 	}
 
 	n.RLock()
@@ -206,12 +226,11 @@ func (n *natsBroker) BatchPublish(ctx context.Context, msg []*broker.Message, op
 
 	g := errgroup.Group{}
 
-	for topic, ms := range msgs {
+	for _, ms := range msgs {
-		for _, m := range ms {
+		m := ms
-			g.Go(func() error {
+		g.Go(func() error {
-				return n.conn.Publish(topic, m)
+			return n.conn.PublishMsg(m)
-			})
+		})
-		}
 	}
 
 	return g.Wait()
@@ -219,9 +238,6 @@ func (n *natsBroker) BatchPublish(ctx context.Context, msg []*broker.Message, op
 
 func (n *natsBroker) Publish(ctx context.Context, topic string, msg *broker.Message, opts ...broker.PublishOption) error {
 	var err error
-	var buf []byte
-
-	options := broker.NewPublishOptions(opts...)
 
 	n.RLock()
 	if n.conn == nil {
@@ -230,10 +246,20 @@ func (n *natsBroker) Publish(ctx context.Context, topic string, msg *broker.Mess
 	}
 	n.RUnlock()
 
+	options := broker.NewPublishOptions(opts...)
+
+	rec := &nats.Msg{}
+	rec.Subject, _ = msg.Header.Get(metadata.HeaderTopic)
 	if options.BodyOnly {
-		buf = msg.Body
+		rec.Data = msg.Body
+	} else if n.opts.Codec.String() == "noop" {
+		rec.Data = msg.Body
+		rec.Header = make(nats.Header, len(msg.Header))
+		for k, v := range msg.Header {
+			rec.Header.Add(k, v)
+		}
 	} else {
-		buf, err = n.opts.Codec.Marshal(msg)
+		rec.Data, err = n.opts.Codec.Marshal(msg)
 		if err != nil {
 			return err
 		}
@@ -241,7 +267,8 @@ func (n *natsBroker) Publish(ctx context.Context, topic string, msg *broker.Mess
 
 	n.RLock()
 	defer n.RUnlock()
-	return n.conn.Publish(topic, buf)
+
+	return n.conn.PublishMsg(rec)
 }
 
 func (n *natsBroker) BatchSubscribe(ctx context.Context, topic string, handler broker.BatchHandler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
@@ -256,29 +283,42 @@ func (n *natsBroker) Subscribe(ctx context.Context, topic string, handler broker
 	}
 	n.RUnlock()
 
-	opt := broker.NewSubscribeOptions(opts...)
+	options := broker.NewSubscribeOptions(opts...)
+
+	eh := n.opts.ErrorHandler
+	if options.ErrorHandler != nil {
+		eh = options.ErrorHandler
+	}
 
 	fn := func(msg *nats.Msg) {
-		m := &broker.Message{}
+		pub := pPool.Get().(*publication)
-		pub := &publication{t: msg.Subject}
+		pub.msg.Header = nil
+		pub.msg.Body = nil
+		pub.topic = msg.Subject
+		pub.err = nil
 
-		eh := n.opts.ErrorHandler
+		if options.BodyOnly {
-		if opt.ErrorHandler != nil {
+			pub.msg.Body = msg.Data
-			eh = opt.ErrorHandler
+		} else if n.opts.Codec.String() == "noop" {
-		}
+			pub.msg.Body = msg.Data
-		err := n.opts.Codec.Unmarshal(msg.Data, &m)
+			pub.msg.Header = metadata.New(len(msg.Header))
-		pub.err = err
+			for k, v := range msg.Header {
-		pub.m = m
+				pub.msg.Header.Set(k, strings.Join(v, ","))
-		if err != nil {
+			}
-			pub.m.Body = msg.Data
+		} else {
-			if eh != nil {
+			err := n.opts.Codec.Unmarshal(msg.Data, pub.msg)
-				eh(pub)
+			pub.err = err
-			} else {
+			if err != nil {
-				if n.opts.Logger.V(logger.ErrorLevel) {
+				pub.msg.Body = msg.Data
-					n.opts.Logger.Error(n.opts.Context, err)
+				if eh != nil {
-				}
+					eh(pub)
+				} else {
+					if n.opts.Logger.V(logger.ErrorLevel) {
+						n.opts.Logger.Error(n.opts.Context, err)
+					}
+				}
+				return
 			}
-			return
 		}
 		if err := handler(pub); err != nil {
 			pub.err = err
@@ -296,8 +336,8 @@ func (n *natsBroker) Subscribe(ctx context.Context, topic string, handler broker
 	var err error
 
 	n.RLock()
-	if len(opt.Group) > 0 {
+	if len(options.Group) > 0 {
-		sub, err = n.conn.QueueSubscribe(topic, opt.Group, fn)
+		sub, err = n.conn.QueueSubscribe(topic, options.Group, fn)
 	} else {
 		sub, err = n.conn.Subscribe(topic, fn)
 	}
@@ -305,7 +345,7 @@ func (n *natsBroker) Subscribe(ctx context.Context, topic string, handler broker
 	if err != nil {
 		return nil, err
 	}
-	return &subscriber{s: sub, opts: opt}, nil
+	return &subscriber{s: sub, opts: options}, nil
 }
 
 func (n *natsBroker) String() string {
@@ -366,9 +406,13 @@ func (n *natsBroker) onDisconnectedError(conn *nats.Conn, err error) {
 	n.closeCh <- err
 }
 
-func NewBroker(opts ...broker.Option) broker.Broker {
+func NewBroker(opts ...broker.Option) *natsBroker {
 	options := broker.NewOptions(opts...)
 
+	if options.Codec.String() != "noop" {
+		options.Logger.Infof(options.Context, "broker codec not noop, disable plain nats headers usage")
+	}
+
 	n := &natsBroker{
 		opts: options,
 	}