chore: improve error messages in WebsocketApiClient.SendMessage (#37)

* chore: improve error messages in WebsocketApiClient.SendMessage

* fix logger variable

---------

Co-authored-by: Tobiasz Heller <tobiaszheller@gmail.com>

internal/api/mobile/app/command/send_2fa_token.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/avast/retry-go/v4"
 	"github.com/google/uuid"
+
 	"github.com/twofas/2fas-server/internal/api/browser_extension/domain"
 	"github.com/twofas/2fas-server/internal/api/mobile/adapters"
 	"github.com/twofas/2fas-server/internal/common/logging"
@@ -45,13 +46,12 @@ type Send2FaTokenHandler struct {
 
 func (h *Send2FaTokenHandler) Handle(ctx context.Context, cmd *Send2FaToken) error {
 	extId, _ := uuid.Parse(cmd.ExtensionId)
-	log := logging.FromContext(ctx)
+	log := logging.FromContext(ctx).WithFields(logging.Fields{
-
-	log.WithFields(logging.Fields{
 		"browser_extension_id": cmd.ExtensionId,
 		"device_id":            cmd.DeviceId,
 		"token_request_id":     cmd.TokenRequestId,
-	}).Info("Start command `Send2FaToken`")
+	})
+	log.Info("Start command `Send2FaToken`")
 
 	browserExtension, err := h.BrowserExtensionsRepository.FindById(extId)
 
@@ -74,7 +74,7 @@ func (h *Send2FaTokenHandler) Handle(ctx context.Context, cmd *Send2FaToken) err
 	if err != nil {
 		log.WithFields(logging.Fields{
 			"error":             err.Error(),
-			"message": message,
+			"websocket_message": message,
 		}).Error("Cannot send websocket message")
 	}
 

internal/common/websocket/gorilla_websocket_client.go

@@ -2,11 +2,13 @@ package websocket
 
 import (
 	"encoding/json"
+	"fmt"
 	"net/http"
 	"net/url"
 	"path"
 
 	"github.com/gorilla/websocket"
+
 	app_http "github.com/twofas/2fas-server/internal/common/http"
 	"github.com/twofas/2fas-server/internal/common/logging"
 )
@@ -22,13 +24,15 @@ func NewWebsocketApiClient(websocketApiUrl string) *WebsocketApiClient {
 }
 
 func (ws *WebsocketApiClient) SendMessage(uri string, message interface{}) error {
-	u, _ := url.Parse(ws.wsAddr)
+	u, err := url.Parse(ws.wsAddr)
+	if err != nil {
+		return fmt.Errorf("failed to parse %q: %w", ws.wsAddr, err)
+	}
 	u.Path = path.Join(u.Path, uri)
 
 	msg, err := json.Marshal(message)
-
 	if err != nil {
-		return err
+		return fmt.Errorf("failed to marshal message: %w", err)
 	}
 
 	logging.WithFields(logging.Fields{
@@ -41,23 +45,20 @@ func (ws *WebsocketApiClient) SendMessage(uri string, message interface{}) error
 	}
 
 	c, _, err := websocket.DefaultDialer.Dial(u.String(), requestHeaders)
-
 	if err != nil {
-		return err
+		return fmt.Errorf("failed to dial: %q: %w", u.String(), err)
 	}
 
 	err = c.WriteMessage(websocket.TextMessage, msg)
-
 	if err != nil {
 		logging.WithField("error", err.Error()).Error("Cannot send websocket message")
-		return err
+		return fmt.Errorf("failed to write message to the conection: %w", err)
 	}
 
 	err = c.WriteMessage(websocket.CloseMessage, websocket.FormatCloseMessage(websocket.CloseNormalClosure, ""))
-
 	if err != nil {
 		logging.WithField("error", err.Error()).Error("Cannot close websocket connection")
-		return err
+		return fmt.Errorf("failed to write close message to the conection: %w", err)
 	}
 
 	return nil