chore: add asynchronous webhook dispatch

plugin/webhook/webhook.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"io"
+	"log/slog"
 	"net/http"
 	"time"
 
@@ -63,3 +64,17 @@ func Post(requestPayload *v1pb.WebhookRequestPayload) error {
 
 	return nil
 }
+
+// PostAsync posts the message to webhook endpoint asynchronously.
+// It spawns a new goroutine to handle the request and does not wait for the response.
+func PostAsync(requestPayload *v1pb.WebhookRequestPayload) {
+	go func() {
+		if err := Post(requestPayload); err != nil {
+			// Since we're in a goroutine, we can only log the error
+			slog.Warn("Failed to dispatch webhook asynchronously",
+				slog.String("url", requestPayload.Url),
+				slog.String("activityType", requestPayload.ActivityType),
+				slog.Any("err", err))
+		}
+	}()
+}

server/router/api/v1/memo_service.go

@@ -689,9 +689,9 @@ func (s *APIV1Service) dispatchMemoRelatedWebhook(ctx context.Context, memo *v1p
 		}
 		payload.ActivityType = activityType
 		payload.Url = hook.URL
-		if err := webhook.Post(payload); err != nil {
-			return errors.Wrap(err, "failed to post webhook")
-		}
+
+		// Use asynchronous webhook dispatch
+		webhook.PostAsync(payload)
 	}
 	return nil
 }