dify

dify/web/utils/error-parser.ts

@@ -0,0 +1,52 @@
+/**
+ * Parse plugin error message from nested error structure
+ * Extracts the real error message from PluginInvokeError JSON string
+ *
+ * @example
+ * Input: { message: "req_id: xxx PluginInvokeError: {\"message\":\"Bad credentials\"}" }
+ * Output: "Bad credentials"
+ *
+ * @param error - Error object (can be Response object or error with message property)
+ * @returns Promise<string> or string - Parsed error message
+ */
+export const parsePluginErrorMessage = async (error: any): Promise<string> => {
+  let rawMessage = ''
+
+  // Handle Response object from fetch/ky
+  if (error instanceof Response) {
+    try {
+      const body = await error.clone().json()
+      rawMessage = body?.message || error.statusText || 'Unknown error'
+    }
+    catch {
+      rawMessage = error.statusText || 'Unknown error'
+    }
+  }
+  else {
+    rawMessage = error?.message || error?.toString() || 'Unknown error'
+  }
+
+  console.log('rawMessage', rawMessage)
+
+  // Try to extract nested JSON from PluginInvokeError
+  // Use greedy match .+ to capture the complete JSON object with nested braces
+  const pluginErrorPattern = /PluginInvokeError:\s*(\{.+\})/
+  const match = rawMessage.match(pluginErrorPattern)
+
+  if (match) {
+    try {
+      const errorData = JSON.parse(match[1])
+      // Return the inner message if exists
+      if (errorData.message)
+        return errorData.message
+      // Fallback to error_type if message not available
+      if (errorData.error_type)
+        return errorData.error_type
+    }
+    catch (parseError) {
+      console.warn('Failed to parse plugin error JSON:', parseError)
+    }
+  }
+
+  return rawMessage
+}