lint (#32)

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

grpc.go

@@ -9,7 +9,6 @@ import (
 	"reflect"
 	"strings"
 	"sync"
-	"sync/atomic"
 	"time"
 
 	"github.com/unistack-org/micro/v3/broker"
@@ -24,11 +23,9 @@ import (
 )
 
 type grpcClient struct {
-	opts   client.Options
-	codecs map[string]encoding.Codec
-	pool   *pool
-	once   atomic.Value
-	init   bool
+	opts client.Options
+	pool *pool
+	init bool
 	sync.RWMutex
 }
 
@@ -42,7 +39,7 @@ func (g *grpcClient) secure(addr string) grpc.DialOption {
 	}
 
 	// default config
-	tlsConfig := &tls.Config{}
+	tlsConfig := &tls.Config{MinVersion: tls.VersionTLS12}
 	defaultCreds := grpc.WithTransportCredentials(credentials.NewTLS(tlsConfig))
 
 	// check if the address is prepended with https
@@ -120,7 +117,7 @@ func (g *grpcClient) call(ctx context.Context, addr string, req client.Request,
 	}
 	defer func() {
 		// defer execution of release
-		g.pool.release(addr, cc, grr)
+		g.pool.release(cc, grr)
 	}()
 
 	ch := make(chan error, 1)
@@ -128,7 +125,8 @@ func (g *grpcClient) call(ctx context.Context, addr string, req client.Request,
 	go func() {
 		grpcCallOptions := []grpc.CallOption{
 			grpc.ForceCodec(&wrapMicroCodec{cf}),
-			grpc.CallContentSubtype((&wrapMicroCodec{cf}).Name())}
+			grpc.CallContentSubtype((&wrapMicroCodec{cf}).Name()),
+		}
 		if opts := g.getGrpcCallOptions(); opts != nil {
 			grpcCallOptions = append(grpcCallOptions, opts...)
 		}
@@ -220,7 +218,7 @@ func (g *grpcClient) stream(ctx context.Context, addr string, req client.Request
 		// cancel the context
 		cancel()
 		// release the connection
-		g.pool.release(addr, cc, err)
+		g.pool.release(cc, err)
 		// now return the error
 		return errors.InternalServerError("go.micro.client", fmt.Sprintf("Error creating stream: %v", err))
 	}
@@ -242,13 +240,13 @@ func (g *grpcClient) stream(ctx context.Context, addr string, req client.Request
 		},
 		conn: cc,
 		close: func(err error) {
-			// cancel the context if an error occured
+			// cancel the context if an error occurred
 			if err != nil {
 				cancel()
 			}
 
 			// defer execution of release
-			g.pool.release(addr, cc, err)
+			g.pool.release(cc, err)
 		},
 	}