Response Model

Every API returns a top-level request result. Transaction APIs also return a business response.

Request Success With Business Result

{
  "result_code": "200",
  "biz_response": {
    "result_code": "PAY_SUCCESS",
    "data": {}
  }
}

Request Failure

{
  "result_code": "400",
  "error_code": "ILLEGAL_SIGN",
  "error_message": "签名错误"
}

Fields

Field	Scope	Meaning
result_code	top-level	Request processing result. 200 means the request was accepted for business handling.
error_code	top-level	Request-level error when result_code is not 200.
error_message	top-level	Human-readable request-level error.
biz_response.result_code	business	Business operation result.
biz_response.error_code	business	Business error code.
biz_response.error_message	business	Business error message.
biz_response.data	business	Operation-specific data.

Client logic must inspect both layers.