multi: address linter issues

aperture.go

@@ -8,6 +8,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	_ "net/http/pprof" // Blank import to set up profiling HTTP handlers.
 	"os"
 	"path/filepath"
 	"regexp"
@@ -35,12 +36,10 @@ import (
 	"golang.org/x/net/http2/h2c"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/credentials/insecure"
 	"google.golang.org/grpc/keepalive"
 	"google.golang.org/protobuf/encoding/protojson"
 	"gopkg.in/yaml.v2"
-
-	// Blank import to set up profiling HTTP handlers.
-	_ "net/http/pprof"
 )
 
 const (
@@ -867,7 +866,9 @@ func createHashMailServer(cfg *Config) ([]proxy.LocalService, func(), error) {
 		&tls.Config{InsecureSkipVerify: true},
 	))
 	if cfg.Insecure {
-		restProxyTLSOpt = grpc.WithInsecure()
+		restProxyTLSOpt = grpc.WithTransportCredentials(
+			insecure.NewCredentials(),
+		)
 	}
 
 	mux := gateway.NewServeMux(customMarshalerOption)

hashmail_server_test.go

@@ -17,6 +17,7 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials/insecure"
 	"google.golang.org/grpc/test/bufconn"
 )
 
@@ -42,7 +43,11 @@ func TestHashMailServerReturnStream(t *testing.T) {
 	setupAperture(t)
 
 	// Create a client and connect it to the server.
-	conn, err := grpc.Dial(testApertureAddress, grpc.WithInsecure())
+	conn, err := grpc.Dial(
+		testApertureAddress, grpc.WithTransportCredentials(
+			insecure.NewCredentials(),
+		),
+	)
 	require.NoError(t, err)
 	client := hashmailrpc.NewHashMailClient(conn)
 
@@ -114,7 +119,11 @@ func TestHashMailServerLargeMessage(t *testing.T) {
 	setupAperture(t)
 
 	// Create a client and connect it to the server.
-	conn, err := grpc.Dial(testApertureAddress, grpc.WithInsecure())
+	conn, err := grpc.Dial(
+		testApertureAddress, grpc.WithTransportCredentials(
+			insecure.NewCredentials(),
+		),
+	)
 	require.NoError(t, err)
 	client := hashmailrpc.NewHashMailClient(conn)
 
@@ -410,7 +419,7 @@ func (h *hashMailHarness) newClientConn() *grpc.ClientConn {
 	conn, err := grpc.Dial("bufnet", grpc.WithContextDialer(
 		func(ctx context.Context, s string) (net.Conn, error) {
 			return h.lis.Dial()
-		}), grpc.WithInsecure(),
+		}), grpc.WithTransportCredentials(insecure.NewCredentials()),
 	)
 	require.NoError(h.t, err)
 	h.t.Cleanup(func() {

pricer/grpcPricer.go

@@ -9,6 +9,7 @@ import (
 	"github.com/lightninglabs/aperture/pricesrpc"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/credentials/insecure"
 )
 
 // Config holds all the config values required to initialise the GRPCPricer.
@@ -44,7 +45,7 @@ func NewGRPCPricer(cfg *Config) (*GRPCPricer, error) {
 	)
 
 	if cfg.Insecure {
-		opt = grpc.WithInsecure()
+		opt = grpc.WithTransportCredentials(insecure.NewCredentials())
 	} else {
 		tlsCredentials, err := credentials.NewClientTLSFromFile(
 			cfg.TLSCertPath, "",