API Calling

• What Are the Possible Causes for an API Calling Failure?

• What Should I Do If an Error Code Is Returned During API Calling?

• Why Am I Seeing the Error Message "414 Request URI too large" When I Call an API?

• What Should I Do If "The API does not exist or has not been published in the environment." Is Displayed?

• Why Am I Seeing the Message "No backend available"?

• What Are the Possible Causes If the Message "Backend unavailable" or "Backend timeout" Is Displayed?

• Why Am I Seeing the Message "Backend domain name resolution failed" When a Backend Service Is Called?

• Why Doesn't Modification of the backend_timeout Parameter Take Effect?

• How Do I Switch the Environment for API Calling?

• What Is the Maximum Size of an API Request Package?

• How Do I Perform App Authentication in iOS System?

• Why Can't I Create a Header Parameter Named x-auth-token for an API Called Through IAM Authentication?

• App (Credential) FAQs

• Can Mobile Apps Call APIs?

• Can Applications Deployed in a VPC Call APIs?

• Does APIG Support WebSocket Data Transmission?

• Does APIG Support Persistent Connections?

• How Will the Requests for an API with Multiple Backend Policies Be Matched and Executed?

• Is There a Limit on the Size of the Response to an API Request?

• How Can I Access Backend Services over Public Networks Through APIG?

last updated: 2025-07-31 14:50 UTC - commit: 1c77c90c87dfb555cb7009a0d8080c66156ddefd