Remove internal notification caller tokens

backend/product/notifications/client.go

@@ -13,13 +13,11 @@ import (
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/credentials/insecure"
-	"google.golang.org/grpc/metadata"
 	"google.golang.org/protobuf/types/known/timestamppb"
 )
 
 type Config struct {
 	Address       string `yaml:"address"`
-	TokenEnv      string `yaml:"token_env"`
 	CAFile        string `yaml:"ca_file"`
 	ServerName    string `yaml:"server_name"`
 	ActivationURL string `yaml:"activation_url"`
@@ -33,15 +31,13 @@ type Sender interface {
 	Send(context.Context, Message) error
 }
 type Client struct {
-	conn  *grpc.ClientConn
-	rpc   pb.NotificationsServiceClient
-	token string
+	conn *grpc.ClientConn
+	rpc  pb.NotificationsServiceClient
 }
 
 func Open(c Config) (*Client, error) {
-	token := os.Getenv(c.TokenEnv)
-	if c.Address == "" || len(token) < 32 {
-		return nil, merrors.InvalidArgument("notification address and caller token of at least 32 bytes are required")
+	if c.Address == "" {
+		return nil, merrors.InvalidArgument("notification address is required")
 	}
 	tlsConfig := &tls.Config{MinVersion: tls.VersionTLS12, ServerName: c.ServerName}
 	if c.CAFile != "" {
@@ -66,13 +62,12 @@ func Open(c Config) (*Client, error) {
 	if err != nil {
 		return nil, merrors.InternalWrap(err, "create notification client")
 	}
-	return &Client{conn: conn, rpc: pb.NewNotificationsServiceClient(conn), token: token}, nil
+	return &Client{conn: conn, rpc: pb.NewNotificationsServiceClient(conn)}, nil
 }
 func (c *Client) Close() error { return c.conn.Close() }
 func (c *Client) Send(ctx context.Context, m Message) error {
 	ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
 	defer cancel()
-	ctx = metadata.AppendToOutgoingContext(ctx, "authorization", "Bearer "+c.token)
 	res, err := c.rpc.Send(ctx, request(m))
 	if err != nil {
 		return merrors.ServiceUnavailableWrap(err, "notification queue unavailable")