noop impl (#32)

* improve logger usage
* add noop client and server

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

api/handler/rpc/rpc.go

@@ -444,7 +444,7 @@ func writeError(w http.ResponseWriter, r *http.Request, err error) {
 
 	_, werr := w.Write([]byte(ce.Error()))
 	if werr != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+		if logger.V(logger.ErrorLevel) {
 			logger.Error(werr)
 		}
 	}
@@ -470,7 +470,7 @@ func writeResponse(w http.ResponseWriter, r *http.Request, rsp []byte) {
 	// write response
 	_, err := w.Write(rsp)
 	if err != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+		if logger.V(logger.ErrorLevel) {
 			logger.Error(err)
 		}
 	}

api/handler/rpc/stream.go

@@ -49,7 +49,7 @@ func serveWebsocket(ctx context.Context, w http.ResponseWriter, r *http.Request,
 	}
 	payload, err := requestPayload(r)
 	if err != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+		if logger.V(logger.ErrorLevel) {
 			logger.Error(err)
 		}
 		return
@@ -72,7 +72,7 @@ func serveWebsocket(ctx context.Context, w http.ResponseWriter, r *http.Request,
 
 	conn, rw, _, err := upgrader.Upgrade(r, w)
 	if err != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+		if logger.V(logger.ErrorLevel) {
 			logger.Error(err)
 		}
 		return
@@ -80,7 +80,7 @@ func serveWebsocket(ctx context.Context, w http.ResponseWriter, r *http.Request,
 
 	defer func() {
 		if err := conn.Close(); err != nil {
-			if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+			if logger.V(logger.ErrorLevel) {
 				logger.Error(err)
 			}
 			return
@@ -116,7 +116,7 @@ func serveWebsocket(ctx context.Context, w http.ResponseWriter, r *http.Request,
 	// create a new stream
 	stream, err := c.Stream(ctx, req, callOpt)
 	if err != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+		if logger.V(logger.ErrorLevel) {
 			logger.Error(err)
 		}
 		return
@@ -124,7 +124,7 @@ func serveWebsocket(ctx context.Context, w http.ResponseWriter, r *http.Request,
 
 	if request != nil {
 		if err = stream.Send(request); err != nil {
-			if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+			if logger.V(logger.ErrorLevel) {
 				logger.Error(err)
 			}
 			return
@@ -150,7 +150,7 @@ func serveWebsocket(ctx context.Context, w http.ResponseWriter, r *http.Request,
 				if strings.Contains(err.Error(), "context canceled") {
 					return
 				}
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+				if logger.V(logger.ErrorLevel) {
 					logger.Error(err)
 				}
 				return
@@ -158,13 +158,13 @@ func serveWebsocket(ctx context.Context, w http.ResponseWriter, r *http.Request,
 
 			// write the response
 			if err := wsutil.WriteServerMessage(rw, op, buf); err != nil {
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+				if logger.V(logger.ErrorLevel) {
 					logger.Error(err)
 				}
 				return
 			}
 			if err = rw.Flush(); err != nil {
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+				if logger.V(logger.ErrorLevel) {
 					logger.Error(err)
 				}
 				return
@@ -195,7 +195,7 @@ func writeLoop(rw io.ReadWriter, stream client.Stream) {
 						return
 					}
 				}
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+				if logger.V(logger.ErrorLevel) {
 					logger.Error(err)
 				}
 				return
@@ -212,7 +212,7 @@ func writeLoop(rw io.ReadWriter, stream client.Stream) {
 			// if the extracted payload isn't empty lets use it
 			request := &raw.Frame{Data: buf}
 			if err := stream.Send(request); err != nil {
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+				if logger.V(logger.ErrorLevel) {
 					logger.Error(err)
 				}
 				return

api/router/registry/registry.go

@@ -53,7 +53,7 @@ func (r *registryRouter) refresh() {
 		services, err := r.opts.Registry.ListServices()
 		if err != nil {
 			attempts++
-			if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+			if logger.V(logger.ErrorLevel) {
 				logger.Errorf("unable to list services: %v", err)
 			}
 			time.Sleep(time.Duration(attempts) * time.Second)
@@ -66,7 +66,7 @@ func (r *registryRouter) refresh() {
 		for _, s := range services {
 			service, err := r.opts.Registry.GetService(s.Name)
 			if err != nil {
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+				if logger.V(logger.ErrorLevel) {
 					logger.Errorf("unable to get service: %v", err)
 				}
 				continue
@@ -94,7 +94,7 @@ func (r *registryRouter) process(res *registry.Result) {
 	// get entry from cache
 	service, err := r.opts.Registry.GetService(res.Service.Name)
 	if err != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+		if logger.V(logger.ErrorLevel) {
 			logger.Errorf("unable to get %v service: %v", res.Service.Name, err)
 		}
 		return
@@ -129,7 +129,7 @@ func (r *registryRouter) store(services []*registry.Service) {
 			}
 			// if we got nothing skip
 			if err := api.Validate(end); err != nil {
-				if logger.V(logger.TraceLevel, logger.DefaultLogger) {
+				if logger.V(logger.TraceLevel) {
 					logger.Tracef("endpoint validation failed: %v", err)
 				}
 				continue
@@ -176,7 +176,7 @@ func (r *registryRouter) store(services []*registry.Service) {
 			}
 			hostreg, err := regexp.CompilePOSIX(h)
 			if err != nil {
-				if logger.V(logger.TraceLevel, logger.DefaultLogger) {
+				if logger.V(logger.TraceLevel) {
 					logger.Tracef("endpoint have invalid host regexp: %v", err)
 				}
 				continue
@@ -197,7 +197,7 @@ func (r *registryRouter) store(services []*registry.Service) {
 
 			rule, err := util.Parse(p)
 			if err != nil && !pcreok {
-				if logger.V(logger.TraceLevel, logger.DefaultLogger) {
+				if logger.V(logger.TraceLevel) {
 					logger.Tracef("endpoint have invalid path pattern: %v", err)
 				}
 				continue
@@ -208,7 +208,7 @@ func (r *registryRouter) store(services []*registry.Service) {
 			tpl := rule.Compile()
 			pathreg, err := util.NewPattern(tpl.Version, tpl.OpCodes, tpl.Pool, "")
 			if err != nil {
-				if logger.V(logger.TraceLevel, logger.DefaultLogger) {
+				if logger.V(logger.TraceLevel) {
 					logger.Tracef("endpoint have invalid path pattern: %v", err)
 				}
 				continue
@@ -233,7 +233,7 @@ func (r *registryRouter) watch() {
 		w, err := r.opts.Registry.Watch()
 		if err != nil {
 			attempts++
-			if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+			if logger.V(logger.ErrorLevel) {
 				logger.Errorf("error watching endpoints: %v", err)
 			}
 			time.Sleep(time.Duration(attempts) * time.Second)
@@ -258,7 +258,7 @@ func (r *registryRouter) watch() {
 			// process next event
 			res, err := w.Next()
 			if err != nil {
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
+				if logger.V(logger.ErrorLevel) {
 					logger.Errorf("error getting next endpoint: %v", err)
 				}
 				close(ch)
@@ -324,7 +324,7 @@ func (r *registryRouter) Endpoint(req *http.Request) (*api.Service, error) {
 		if !mMatch {
 			continue
 		}
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+		if logger.V(logger.DebugLevel) {
 			logger.Debugf("api method match %s", req.Method)
 		}
 
@@ -347,7 +347,7 @@ func (r *registryRouter) Endpoint(req *http.Request) (*api.Service, error) {
 		if !hMatch {
 			continue
 		}
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+		if logger.V(logger.DebugLevel) {
 			logger.Debugf("api host match %s", req.URL.Host)
 		}
 
@@ -355,12 +355,12 @@ func (r *registryRouter) Endpoint(req *http.Request) (*api.Service, error) {
 		for _, pathreg := range cep.pathregs {
 			matches, err := pathreg.Match(path, "")
 			if err != nil {
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+				if logger.V(logger.DebugLevel) {
 					logger.Debugf("api gpath not match %s != %v", path, pathreg)
 				}
 				continue
 			}
-			if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+			if logger.V(logger.DebugLevel) {
 				logger.Debugf("api gpath match %s = %v", path, pathreg)
 			}
 			pMatch = true
@@ -381,12 +381,12 @@ func (r *registryRouter) Endpoint(req *http.Request) (*api.Service, error) {
 			// 4. try path via pcre path matching
 			for _, pathreg := range cep.pcreregs {
 				if !pathreg.MatchString(req.URL.Path) {
-					if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+					if logger.V(logger.DebugLevel) {
 						logger.Debugf("api pcre path not match %s != %v", path, pathreg)
 					}
 					continue
 				}
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+				if logger.V(logger.DebugLevel) {
 					logger.Debugf("api pcre path match %s != %v", path, pathreg)
 				}
 				pMatch = true

api/router/static/static.go

@@ -249,8 +249,8 @@ func (r *staticRouter) endpoint(req *http.Request) (*endpoint, error) {
 		if !mMatch {
 			continue
 		}
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+		if logger.V(logger.TraceLevel) {
-			logger.Debugf("api method match %s", req.Method)
+			logger.Tracef("api method match %s", req.Method)
 		}
 
 		// 2. try host
@@ -272,21 +272,21 @@ func (r *staticRouter) endpoint(req *http.Request) (*endpoint, error) {
 		if !hMatch {
 			continue
 		}
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+		if logger.V(logger.TraceLevel) {
-			logger.Debugf("api host match %s", req.URL.Host)
+			logger.Tracef("api host match %s", req.URL.Host)
 		}
 
 		// 3. try google.api path
 		for _, pathreg := range ep.pathregs {
 			matches, err := pathreg.Match(path, "")
 			if err != nil {
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+				if logger.V(logger.TraceLevel) {
-					logger.Debugf("api gpath not match %s != %v", path, pathreg)
+					logger.Tracef("api gpath not match %s != %v", path, pathreg)
 				}
 				continue
 			}
-			if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+			if logger.V(logger.TraceLevel) {
-				logger.Debugf("api gpath match %s = %v", path, pathreg)
+				logger.Tracef("api gpath match %s = %v", path, pathreg)
 			}
 			pMatch = true
 			ctx := req.Context()
@@ -306,8 +306,8 @@ func (r *staticRouter) endpoint(req *http.Request) (*endpoint, error) {
 			// 4. try path via pcre path matching
 			for _, pathreg := range ep.pcreregs {
 				if !pathreg.MatchString(req.URL.Path) {
-					if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+					if logger.V(logger.TraceLevel) {
-						logger.Debugf("api pcre path not match %s != %v", req.URL.Path, pathreg)
+						logger.Tracef("api pcre path not match %s != %v", req.URL.Path, pathreg)
 					}
 					continue
 				}

api/server/acme/autocert/autocert.go

@@ -31,7 +31,7 @@ func (a *autocertProvider) TLSConfig(hosts ...string) (*tls.Config, error) {
 	}
 	dir := cacheDir()
 	if err := os.MkdirAll(dir, 0700); err != nil {
-		if logger.V(logger.InfoLevel, logger.DefaultLogger) {
+		if logger.V(logger.InfoLevel) {
 			logger.Infof("warning: autocert not using a cache: %v", err)
 		}
 	} else {

api/server/http/http.go

@@ -75,7 +75,7 @@ func (s *httpServer) Start() error {
 		return err
 	}
 
-	if logger.V(logger.InfoLevel, logger.DefaultLogger) {
+	if logger.V(logger.InfoLevel) {
 		logger.Infof("HTTP API Listening on %s", l.Addr().String())
 	}
 

broker/options.go

@@ -27,10 +27,16 @@ type Options struct {
 	Context context.Context
 }
 
-func NewOptions() Options {
+func NewOptions(opts ...Option) Options {
-	return Options{
+	options := Options{
+		Registry: registry.DefaultRegistry,
+		Logger:   logger.DefaultLogger,
 		Context:  context.Background(),
 	}
+	for _, o := range opts {
+		o(&options)
+	}
+	return options
 }
 
 type PublishOptions struct {

client/client.go

@@ -9,7 +9,7 @@ import (
 )
 
 var (
-	DefaultClient Client
+	DefaultClient Client = newClient()
 )
 
 // Client is the interface used to make requests to services.

client/noop.go

@@ -0,0 +1,157 @@
+package client
+
+import (
+	"context"
+
+	"github.com/unistack-org/micro/v3/codec"
+)
+
+type noopClient struct {
+	opts Options
+}
+
+type noopMessage struct {
+	topic       string
+	payload     interface{}
+	contentType string
+}
+
+type noopRequest struct {
+	service     string
+	method      string
+	endpoint    string
+	contentType string
+	body        interface{}
+	codec       codec.Writer
+	stream      bool
+}
+
+func (n *noopRequest) Service() string {
+	return n.service
+}
+
+func (n *noopRequest) Method() string {
+	return n.method
+}
+
+func (n *noopRequest) Endpoint() string {
+	return n.endpoint
+}
+
+func (n *noopRequest) ContentType() string {
+	return n.contentType
+}
+
+func (n *noopRequest) Body() interface{} {
+	return n.body
+}
+
+func (n *noopRequest) Codec() codec.Writer {
+	return n.codec
+}
+
+func (n *noopRequest) Stream() bool {
+	return n.stream
+}
+
+type noopResponse struct {
+	codec  codec.Reader
+	header map[string]string
+}
+
+func (n *noopResponse) Codec() codec.Reader {
+	return n.codec
+}
+
+func (n *noopResponse) Header() map[string]string {
+	return n.header
+}
+
+func (n *noopResponse) Read() ([]byte, error) {
+	return nil, nil
+}
+
+type noopStream struct{}
+
+func (n *noopStream) Context() context.Context {
+	return context.Background()
+}
+
+func (n *noopStream) Request() Request {
+	return &noopRequest{}
+}
+
+func (n *noopStream) Response() Response {
+	return &noopResponse{}
+}
+
+func (n *noopStream) Send(interface{}) error {
+	return nil
+}
+
+func (n *noopStream) Recv(interface{}) error {
+	return nil
+}
+
+func (n *noopStream) Error() error {
+	return nil
+}
+
+func (n *noopStream) Close() error {
+	return nil
+}
+
+func (n *noopMessage) Topic() string {
+	return n.topic
+}
+
+func (n *noopMessage) Payload() interface{} {
+	return n.payload
+}
+
+func (n *noopMessage) ContentType() string {
+	return n.contentType
+}
+
+func (n *noopClient) Init(opts ...Option) error {
+	for _, o := range opts {
+		o(&n.opts)
+	}
+	return nil
+}
+
+func (n *noopClient) Options() Options {
+	return n.opts
+}
+
+func (n *noopClient) String() string {
+	return "noop"
+}
+
+func (n *noopClient) Call(ctx context.Context, req Request, rsp interface{}, opts ...CallOption) error {
+	return nil
+}
+
+func (n *noopClient) NewRequest(service, endpoint string, req interface{}, opts ...RequestOption) Request {
+	return &noopRequest{}
+}
+
+func (n *noopClient) NewMessage(topic string, msg interface{}, opts ...MessageOption) Message {
+	return &noopMessage{}
+}
+
+func (n *noopClient) Stream(ctx context.Context, req Request, opts ...CallOption) (Stream, error) {
+	return &noopStream{}, nil
+}
+
+func (n *noopClient) Publish(ctx context.Context, msg Message, opts ...PublishOption) error {
+	return nil
+}
+
+func newClient(opts ...Option) Client {
+	options := NewOptions()
+	for _, o := range opts {
+		o(&options)
+	}
+	return &noopClient{opts: options}
+}

client/options.go

@@ -105,8 +105,8 @@ type RequestOptions struct {
 	Context context.Context
 }
 
-func NewOptions(options ...Option) Options {
+func NewOptions(opts ...Option) Options {
-	opts := Options{
+	options := Options{
 		Cache:       NewCache(),
 		Context:     context.Background(),
 		ContentType: "application/protobuf",
@@ -122,13 +122,15 @@ func NewOptions(options ...Option) Options {
 		PoolSize: DefaultPoolSize,
 		PoolTTL:  DefaultPoolTTL,
 		Selector: random.NewSelector(),
+		Logger:   logger.DefaultLogger,
+		Broker:   broker.DefaultBroker,
 	}
 
-	for _, o := range options {
+	for _, o := range opts {
-		o(&opts)
+		o(&options)
 	}
 
-	return opts
+	return options
 }
 
 // Broker to be used for pub/sub

go.mod

@@ -8,26 +8,26 @@ require (
 	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible
 	github.com/ef-ds/deque v1.0.4-0.20190904040645-54cb57c252a1
-	github.com/evanphx/json-patch/v5 v5.0.0
+	github.com/evanphx/json-patch/v5 v5.1.0
 	github.com/ghodss/yaml v1.0.0
 	github.com/go-acme/lego/v3 v3.4.0
 	github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee
 	github.com/gobwas/ws v1.0.3
 	github.com/golang/protobuf v1.4.2
-	github.com/google/uuid v1.1.1
+	github.com/google/uuid v1.1.2
 	github.com/hashicorp/hcl v1.0.0
 	github.com/kr/text v0.2.0 // indirect
 	github.com/micro/cli/v2 v2.1.2
-	github.com/miekg/dns v1.1.27
+	github.com/miekg/dns v1.1.31
 	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
 	github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/stretchr/testify v1.5.1
-	github.com/unistack-org/micro-codec-bytes v0.0.0-20200827104921-3616a69473a6
+	github.com/unistack-org/micro-codec-bytes v0.0.0-20200828083432-4e49e953d844
 	github.com/unistack-org/micro-config-cmd v0.0.0-20200828075439-d859b9d7265b
-	golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899
+	golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a
-	golang.org/x/net v0.0.0-20200707034311-ab3426394381
+	golang.org/x/net v0.0.0-20200904194848-62affa334b73
-	google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013
+	google.golang.org/genproto v0.0.0-20200904004341-0bd0a958aa1d
 	google.golang.org/protobuf v1.25.0
 	gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
 )

go.sum

@@ -75,6 +75,8 @@ github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.m
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/evanphx/json-patch/v5 v5.0.0 h1:dKTrUeykyQwKb/kx7Z+4ukDs6l+4L41HqG1XHnhX7WE=
 github.com/evanphx/json-patch/v5 v5.0.0/go.mod h1:G79N1coSVB93tBe7j6PhzjmR3/2VvlbKOFpnXhI9Bw4=
+github.com/evanphx/json-patch/v5 v5.1.0 h1:B0aXl1o/1cP8NbviYiBMkcHBtUjIJ1/Ccg6b+SwCLQg=
+github.com/evanphx/json-patch/v5 v5.1.0/go.mod h1:G79N1coSVB93tBe7j6PhzjmR3/2VvlbKOFpnXhI9Bw4=
 github.com/exoscale/egoscale v0.18.1/go.mod h1:Z7OOdzzTOz1Q1PjQXumlz9Wn/CddH0zSYdCF3rnBKXE=
 github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
 github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
@@ -139,6 +141,8 @@ github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OI
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/google/uuid v1.1.1 h1:Gkbcsh/GbpXz7lPftLA3P6TYMwjCLYm83jiFQZF/3gY=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/google/uuid v1.1.2 h1:EVhdT+1Kseyi1/pUmXKaFxYsDNy9RQYkMWRH68J/W7Y=
+github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
 github.com/gophercloud/gophercloud v0.3.0/go.mod h1:vxM41WHh5uqHVBMZHzuwNOHh8XEoIEcSTewFxm1c5g8=
@@ -197,6 +201,8 @@ github.com/micro/cli/v2 v2.1.2/go.mod h1:EguNh6DAoWKm9nmk+k/Rg0H3lQnDxqzu5x5srOt
 github.com/miekg/dns v1.1.15/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
 github.com/miekg/dns v1.1.27 h1:aEH/kqUzUxGJ/UHcEKdJY+ugH6WEzsEBBSPa8zuy1aM=
 github.com/miekg/dns v1.1.27/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=
+github.com/miekg/dns v1.1.31 h1:sJFOl9BgwbYAWOGEwr61FU28pqsBNdpRBnhGXtO06Oo=
+github.com/miekg/dns v1.1.31/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/mitchellh/go-vnc v0.0.0-20150629162542-723ed9867aed/go.mod h1:3rdaFaCv4AyBgu5ALFM0+tSuHrBh6v692nyQe3ikrq0=
@@ -275,8 +281,8 @@ github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5
 github.com/timewasted/linode v0.0.0-20160829202747-37e84520dcf7/go.mod h1:imsgLplxEC/etjIhdr3dNzV3JeT27LbVu5pYWm0JCBY=
 github.com/transip/gotransip v0.0.0-20190812104329-6d8d9179b66f/go.mod h1:i0f4R4o2HM0m3DZYQWsj6/MEowD57VzoH0v3d7igeFY=
 github.com/uber-go/atomic v1.3.2/go.mod h1:/Ct5t2lcmbJ4OSe/waGBoaVvVqtO0bmtfVNex1PFV8g=
-github.com/unistack-org/micro-codec-bytes v0.0.0-20200827104921-3616a69473a6 h1:bBPX47ly/xhLhuCMIvybXKevCOCZCmxzvDwR61zu3cQ=
+github.com/unistack-org/micro-codec-bytes v0.0.0-20200828083432-4e49e953d844 h1:5b1yuSllbsMm/9fUIlIXSr8DbsKT/sAKSCgOx6+SAfI=
-github.com/unistack-org/micro-codec-bytes v0.0.0-20200827104921-3616a69473a6/go.mod h1:g5sOI8TWgGZiVHe8zoUPdtz7+0oLnqTnfBoai6Qb7jE=
+github.com/unistack-org/micro-codec-bytes v0.0.0-20200828083432-4e49e953d844/go.mod h1:g5sOI8TWgGZiVHe8zoUPdtz7+0oLnqTnfBoai6Qb7jE=
 github.com/unistack-org/micro-config-cmd v0.0.0-20200828075439-d859b9d7265b h1:v5Ak+Sr780jZclFDnx82g5biF0N5HRVKphEpJhbnVUs=
 github.com/unistack-org/micro-config-cmd v0.0.0-20200828075439-d859b9d7265b/go.mod h1:6pm1cadbwsFcEW1ZbV5Fp0i3goR3TNfROMNSPih3I8k=
 github.com/unistack-org/micro/v3 v3.0.0-20200827083227-aa99378adc6e/go.mod h1:rPQbnry3nboAnMczj8B1Gzlcyv/HYoMZLgd3/3nttJ4=
@@ -303,6 +309,8 @@ golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899 h1:DZhuSZLsGlFL4CmhA8BcRA0mnthyA/nZ00AqCUo7vHg=
 golang.org/x/crypto v0.0.0-20200709230013-948cd5f35899/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a h1:vclmkQCjlDX5OydZ9wv8rBCcS0QyQY66Mpf/7BZbInM=
+golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -345,6 +353,8 @@ golang.org/x/net v0.0.0-20190930134127-c5a3c61f89f3/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20191027093000-83d349e8ac1a/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200707034311-ab3426394381 h1:VXak5I6aEWmAXeQjA+QSZzlgNrpq9mjcfDemuexIKsU=
 golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
+golang.org/x/net v0.0.0-20200904194848-62affa334b73 h1:MXfv8rhZWmFeqX3GNZRsd6vOLoaCHjYEX3qkRo3YBUA=
+golang.org/x/net v0.0.0-20200904194848-62affa334b73/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45 h1:SVwTIAaPC2U/AvvLNZ2a7OVsmBpC8L5BlwK1whH3hm0=
@@ -405,6 +415,7 @@ golang.org/x/tools v0.0.0-20190911174233-4f2ddba30aff/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20191012152004-8de300cfc20a/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191125144606-a911d9008d1f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191216052735-49a3e744a425/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.0.0-20191216173652-a0e659d51361 h1:RIIXAeV6GvDBuADKumTODatUqANFZ+5BPMnzsy4hulY=
 golang.org/x/tools v0.0.0-20191216173652-a0e659d51361/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -432,6 +443,8 @@ google.golang.org/genproto v0.0.0-20190911173649-1774047e7e51/go.mod h1:IbNlFCBr
 google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013 h1:+kGHl1aib/qcwaRi1CbqBZ1rk19r85MNUf8HaBghugY=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20200904004341-0bd0a958aa1d h1:92D1fum1bJLKSdr11OJ+54YeCMCGYIygTA7R/YZxH5M=
+google.golang.org/genproto v0.0.0-20200904004341-0bd0a958aa1d/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.19.1/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
@@ -448,6 +461,7 @@ google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzi
 google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
 google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=

logger/level.go

@@ -117,10 +117,6 @@ func Fatalf(template string, args ...interface{}) {
 }
 
 // Returns true if the given level is at or lower the current logger level
-func V(lvl Level, log Logger) bool {
+func V(lvl Level) bool {
-	l := DefaultLogger
+	return DefaultLogger.Options().Level <= lvl
-	if log != nil {
-		l = log
-	}
-	return l.Options().Level <= lvl
 }

registry/options.go

@@ -19,11 +19,15 @@ type Options struct {
 	Context context.Context
 }
 
-func NewOptions() Options {
+func NewOptions(opts ...Option) Options {
-	return Options{
+	options := Options{
 		Logger:  logger.DefaultLogger,
 		Context: context.Background(),
 	}
+	for _, o := range opts {
+		o(&options)
+	}
+	return options
 }
 
 type RegisterOptions struct {

server/handler.go

@@ -9,6 +9,10 @@ type HandlerOptions struct {
 	Metadata map[string]map[string]string
 }
 
+func NewHandlerOptions() HandlerOptions {
+	return HandlerOptions{}
+}
+
 type SubscriberOption func(*SubscriberOptions)
 
 type SubscriberOptions struct {
@@ -20,6 +24,19 @@ type SubscriberOptions struct {
 	Context  context.Context
 }
 
+func NewSubscriberOptions(opts ...SubscriberOption) SubscriberOptions {
+	opt := SubscriberOptions{
+		AutoAck: true,
+		Context: context.Background(),
+	}
+
+	for _, o := range opts {
+		o(&opt)
+	}
+
+	return opt
+}
+
 // EndpointMetadata is a Handler option that allows metadata to be added to
 // individual endpoints.
 func EndpointMetadata(name string, md map[string]string) HandlerOption {
@@ -44,18 +61,6 @@ func InternalSubscriber(b bool) SubscriberOption {
 		o.Internal = b
 	}
 }
-func NewSubscriberOptions(opts ...SubscriberOption) SubscriberOptions {
-	opt := SubscriberOptions{
-		AutoAck: true,
-		Context: context.Background(),
-	}
-
-	for _, o := range opts {
-		o(&opt)
-	}
-
-	return opt
-}
 
 // DisableAutoAck will disable auto acking of messages
 // after they have been handled.

server/noop.go

@@ -0,0 +1,108 @@
+package server
+
+import "github.com/unistack-org/micro/v3/registry"
+
+type noopServer struct {
+	h    Handler
+	opts Options
+}
+
+type noopHandler struct {
+	opts HandlerOptions
+	h    interface{}
+}
+
+type noopSubscriber struct {
+	topic string
+	opts  SubscriberOptions
+	h     interface{}
+}
+
+func (n *noopSubscriber) Topic() string {
+	return n.topic
+}
+
+func (n *noopSubscriber) Subscriber() interface{} {
+	return n.h
+}
+
+func (n *noopSubscriber) Endpoints() []*registry.Endpoint {
+	return nil
+}
+
+func (n *noopSubscriber) Options() SubscriberOptions {
+	return n.opts
+}
+
+func (n *noopHandler) Endpoints() []*registry.Endpoint {
+	return nil
+}
+
+func (n *noopHandler) Handler() interface{} {
+	return nil
+}
+
+func (n *noopHandler) Options() HandlerOptions {
+	return n.opts
+}
+
+func (n *noopHandler) Name() string {
+	return "noop"
+}
+
+func (n *noopServer) Handle(handler Handler) error {
+	n.h = handler
+	return nil
+}
+
+func (n *noopServer) Subscribe(subscriber Subscriber) error {
+	//	n.s = handler
+	return nil
+}
+
+func (n *noopServer) NewHandler(h interface{}, opts ...HandlerOption) Handler {
+	options := NewHandlerOptions()
+	for _, o := range opts {
+		o(&options)
+	}
+	return &noopHandler{opts: options, h: h}
+}
+
+func (n *noopServer) NewSubscriber(topic string, h interface{}, opts ...SubscriberOption) Subscriber {
+	options := NewSubscriberOptions()
+	for _, o := range opts {
+		o(&options)
+	}
+	return &noopSubscriber{topic: topic, opts: options, h: h}
+}
+
+func (n *noopServer) Init(opts ...Option) error {
+	for _, o := range opts {
+		o(&n.opts)
+	}
+	return nil
+}
+
+func (n *noopServer) Start() error {
+	return nil
+}
+
+func (n *noopServer) Stop() error {
+	return nil
+}
+
+func (n *noopServer) Options() Options {
+	return n.opts
+}
+
+func (n *noopServer) String() string {
+	return "noop"
+}
+
+func newServer(opts ...Option) Server {
+	options := NewOptions()
+	for _, o := range opts {
+		o(&options)
+	}
+	return &noopServer{opts: options}
+}

server/options.go

@@ -51,39 +51,19 @@ type Options struct {
 	Context context.Context
 }
 
-func newOptions(opt ...Option) Options {
+func NewOptions() Options {
-	opts := Options{
+	return Options{
 		Codecs:           make(map[string]codec.NewCodec),
+		Context:          context.Background(),
 		Metadata:         map[string]string{},
 		RegisterInterval: DefaultRegisterInterval,
 		RegisterTTL:      DefaultRegisterTTL,
+		RegisterCheck:    DefaultRegisterCheck,
+		Address:          DefaultAddress,
+		Name:             DefaultName,
+		Version:          DefaultVersion,
+		Id:               DefaultId,
 	}
-
-	for _, o := range opt {
-		o(&opts)
-	}
-
-	if opts.RegisterCheck == nil {
-		opts.RegisterCheck = DefaultRegisterCheck
-	}
-
-	if len(opts.Address) == 0 {
-		opts.Address = DefaultAddress
-	}
-
-	if len(opts.Name) == 0 {
-		opts.Name = DefaultName
-	}
-
-	if len(opts.Id) == 0 {
-		opts.Id = DefaultId
-	}
-
-	if len(opts.Version) == 0 {
-		opts.Version = DefaultVersion
-	}
-
-	return opts
 }
 
 // Server name

server/server.go

@@ -11,7 +11,7 @@ import (
 )
 
 var (
-	DefaultServer Server
+	DefaultServer Server = newServer()
 )
 
 // Server is a simple micro server abstraction
@@ -138,7 +138,7 @@ type Option func(*Options)
 
 var (
 	DefaultAddress          = ":0"
-	DefaultName             = "go.micro.server"
+	DefaultName             = "server"
 	DefaultVersion          = "latest"
 	DefaultId               = uuid.New().String()
 	DefaultRegisterCheck    = func(context.Context) error { return nil }

service.go

@@ -149,7 +149,7 @@ func (s *service) Run() error {
 		defer s.opts.Profile.Stop()
 	}
 
-	if logger.V(logger.InfoLevel, logger.DefaultLogger) {
+	if logger.V(logger.InfoLevel) {
 		logger.Infof("Starting [service] %s", s.Name())
 	}
 

store/options.go

@@ -23,11 +23,15 @@ type Options struct {
 	Context context.Context
 }
 
-func NewOptions() Options {
+func NewOptions(opts ...Option) Options {
-	return Options{
+	options := Options{
 		Logger:  logger.DefaultLogger,
 		Context: context.Background(),
 	}
+	for _, o := range opts {
+		o(&options)
+	}
+	return options
 }
 
 // Option sets values in Options

util/auth/auth.go

@@ -25,7 +25,7 @@ func Verify(a auth.Auth) error {
 		if err != nil {
 			return err
 		}
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+		if logger.V(logger.DebugLevel) {
 			logger.Debugf("Auth [%v] Generated an auth account", a.String())
 		}
 
@@ -67,7 +67,9 @@ func Verify(a auth.Auth) error {
 				auth.WithExpiry(time.Minute*10),
 			)
 			if err != nil {
+				if logger.V(logger.WarnLevel) {
 					logger.Warnf("[Auth] Error refreshing token: %v", err)
+				}
 				continue
 			}
 

util/kubernetes/client/client.go

@@ -227,7 +227,7 @@ func (c *client) Watch(r *Resource, opts ...WatchOption) (Watcher, error) {
 
 // NewService returns default micro kubernetes service definition
 func NewService(name, version, typ, namespace string) *Service {
-	if logger.V(logger.TraceLevel, logger.DefaultLogger) {
+	if logger.V(logger.TraceLevel) {
 		logger.Tracef("kubernetes default service: name: %s, version: %s", name, version)
 	}
 
@@ -270,7 +270,7 @@ func NewService(name, version, typ, namespace string) *Service {
 
 // NewService returns default micro kubernetes deployment definition
 func NewDeployment(name, version, typ, namespace string) *Deployment {
-	if logger.V(logger.TraceLevel, logger.DefaultLogger) {
+	if logger.V(logger.TraceLevel) {
 		logger.Tracef("kubernetes default deployment: name: %s, version: %s", name, version)
 	}
 

util/router/parse.go

@@ -102,21 +102,21 @@ type parser struct {
 
 // topLevelSegments is the target of this parser.
 func (p *parser) topLevelSegments() ([]segment, error) {
-	if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+	if logger.V(logger.TraceLevel) {
 		logger.Debugf("Parsing %q", p.tokens)
 	}
 	segs, err := p.segments()
 	if err != nil {
 		return nil, err
 	}
-	if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+	if logger.V(logger.TraceLevel) {
-		logger.Debugf("accept segments: %q; %q", p.accepted, p.tokens)
+		logger.Tracef("accept segments: %q; %q", p.accepted, p.tokens)
 	}
 	if _, err := p.accept(typeEOF); err != nil {
 		return nil, fmt.Errorf("unexpected token %q after segments %q", p.tokens[0], strings.Join(p.accepted, ""))
 	}
-	if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+	if logger.V(logger.TraceLevel) {
-		logger.Debugf("accept eof: %q; %q", p.accepted, p.tokens)
+		logger.Tracef("accept eof: %q; %q", p.accepted, p.tokens)
 	}
 	return segs, nil
 }
@@ -127,8 +127,8 @@ func (p *parser) segments() ([]segment, error) {
 		return nil, err
 	}
 
-	if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+	if logger.V(logger.TraceLevel) {
-		logger.Debugf("accept segment: %q; %q", p.accepted, p.tokens)
+		logger.Tracef("accept segment: %q; %q", p.accepted, p.tokens)
 	}
 	segs := []segment{s}
 	for {
@@ -140,8 +140,8 @@ func (p *parser) segments() ([]segment, error) {
 			return segs, err
 		}
 		segs = append(segs, s)
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+		if logger.V(logger.TraceLevel) {
-			logger.Debugf("accept segment: %q; %q", p.accepted, p.tokens)
+			logger.Tracef("accept segment: %q; %q", p.accepted, p.tokens)
 		}
 	}
 }

util/router/runtime.go

@@ -62,7 +62,7 @@ func NewPattern(version int, ops []int, pool []string, verb string, opts ...Patt
 	}
 
 	if version != 1 {
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+		if logger.V(logger.DebugLevel) {
 			logger.Debugf("unsupported version: %d", version)
 		}
 		return Pattern{}, ErrInvalidPattern
@@ -70,7 +70,7 @@ func NewPattern(version int, ops []int, pool []string, verb string, opts ...Patt
 
 	l := len(ops)
 	if l%2 != 0 {
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+		if logger.V(logger.DebugLevel) {
 			logger.Debugf("odd number of ops codes: %d", l)
 		}
 		return Pattern{}, ErrInvalidPattern
@@ -95,8 +95,8 @@ func NewPattern(version int, ops []int, pool []string, verb string, opts ...Patt
 			stack++
 		case OpPushM:
 			if pushMSeen {
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+				if logger.V(logger.TraceLevel) {
-					logger.Debug("pushM appears twice")
+					logger.Trace("pushM appears twice")
 				}
 				return Pattern{}, ErrInvalidPattern
 			}
@@ -104,8 +104,8 @@ func NewPattern(version int, ops []int, pool []string, verb string, opts ...Patt
 			stack++
 		case OpLitPush:
 			if op.operand < 0 || len(pool) <= op.operand {
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+				if logger.V(logger.TraceLevel) {
-					logger.Debugf("negative literal index: %d", op.operand)
+					logger.Tracef("negative literal index: %d", op.operand)
 				}
 				return Pattern{}, ErrInvalidPattern
 			}
@@ -115,23 +115,23 @@ func NewPattern(version int, ops []int, pool []string, verb string, opts ...Patt
 			stack++
 		case OpConcatN:
 			if op.operand <= 0 {
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+				if logger.V(logger.TraceLevel) {
-					logger.Debugf("negative concat size: %d", op.operand)
+					logger.Tracef("negative concat size: %d", op.operand)
 				}
 				return Pattern{}, ErrInvalidPattern
 			}
 			stack -= op.operand
 			if stack < 0 {
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+				if logger.V(logger.TraceLevel) {
-					logger.Debug("stack underflow")
+					logger.Trace("stack underflow")
 				}
 				return Pattern{}, ErrInvalidPattern
 			}
 			stack++
 		case OpCapture:
 			if op.operand < 0 || len(pool) <= op.operand {
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+				if logger.V(logger.TraceLevel) {
-					logger.Debugf("variable name index out of bound: %d", op.operand)
+					logger.Tracef("variable name index out of bound: %d", op.operand)
 				}
 				return Pattern{}, ErrInvalidPattern
 			}
@@ -140,14 +140,14 @@ func NewPattern(version int, ops []int, pool []string, verb string, opts ...Patt
 			vars = append(vars, v)
 			stack--
 			if stack < 0 {
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+				if logger.V(logger.DebugLevel) {
-					logger.Debug("stack underflow")
+					logger.Trace("stack underflow")
 				}
 				return Pattern{}, ErrInvalidPattern
 			}
 		default:
-			if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+			if logger.V(logger.DebugLevel) {
-				logger.Debugf("invalid opcode: %d", op.code)
+				logger.Tracef("invalid opcode: %d", op.code)
 			}
 			return Pattern{}, ErrInvalidPattern
 		}
@@ -171,7 +171,7 @@ func NewPattern(version int, ops []int, pool []string, verb string, opts ...Patt
 // MustPattern is a helper function which makes it easier to call NewPattern in variable initialization.
 func MustPattern(p Pattern, err error) Pattern {
 	if err != nil {
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
+		if logger.V(logger.FatalLevel) {
 			logger.Fatalf("Pattern initialization failed: %v", err)
 		}
 	}