changes

app/workflow_actions.py

@@ -111,41 +111,66 @@ def api_call_action(params, context):
     method = params["method"].upper()
     url = resolve_value(params["url"], context)
     save_as = params.get("save_as")
-    
+
     raw_body = params.get("body")
-    
-    # Nếu body chứa biểu thức $map, thực hiện biến đổi dữ liệu trước khi gửi
+
+    # ============================
+    # Resolve body
+    # ============================
     if isinstance(raw_body, str) and raw_body.startswith("$map"):
         body = handle_map_expression(raw_body, context)
     elif isinstance(raw_body, dict):
         body = deep_resolve_values(raw_body, context)
+    elif raw_body is None:
+        body = None
     else:
         body = resolve_value(raw_body, context)
 
     print(f"      [API_CALL] {method} {url}")
     print(f"      [API_CALL] Resolved Body: {body}")
 
-    # Thực hiện request
+    # ============================
+    # Execute request
+    # ============================
     if method == "POST":
         resp = client.post(url, body, content_type="application/json")
     elif method == "PATCH":
         resp = client.patch(url, body, content_type="application/json")
     elif method == "PUT":
         resp = client.put(url, body, content_type="application/json")
+    elif method == "DELETE":
+        resp = client.delete(url)
     else:
         resp = client.get(url)
 
     print(f"      [API_CALL] Status Code: {resp.status_code}")
 
+    # ============================
+    # Handle error
+    # ============================
     if resp.status_code >= 400:
-        error_content = resp.content.decode('utf-8')
+        error_content = resp.content.decode("utf-8") if resp.content else ""
         print(f"      [API_CALL] Error: {error_content}")
         raise Exception(f"API Call failed: {error_content}")
 
-    result = resp.json()
+    # ============================
+    # Handle response safely
+    # ============================
+    if resp.status_code == 204 or not resp.content:
+        # DELETE / No Content
+        result = {"deleted": True}
+    else:
+        try:
+            result = resp.json()
+        except ValueError:
+            # Fallback nếu response không phải JSON
+            result = resp.content.decode("utf-8")
+
     print(f"      [API_CALL] Result: {result}")
+
     if save_as:
         context[save_as] = result
+
     return result