Help Center/API Gateway/API Reference (Ally Region)/Dedicated Gateway APIs (V2)/API Management/Debugging an API
Updated on 2025-12-19 GMT+08:00
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Debugging an API

Function

This API is used to debug an API in a specified environment. The API caller must have the permissions required for accessing this API.

Calling Method

For details, see Calling APIs.

URI

POST /v2/{project_id}/apigw/instances/{instance_id}/apis/debug/{api_id}

Table 1 Path Parameters

Parameter

Mandatory

Type

Description

project_id

Yes

String

Project ID. For details about how to obtain it, see Obtaining a Project ID.

instance_id

Yes

String

Gateway ID, which can be obtained from the gateway information on the APIG console.

api_id

Yes

String

API ID.

Request Parameters

Table 2 Request header parameters

Parameter

Mandatory

Type

Description

X-Auth-Token

Yes

String

User token. It can be obtained by calling the IAM API used to obtain a user token. The value of X-Subject-Token in the response header is a token.

Table 3 Request body parameters

Parameter

Mandatory

Type

Description

body

No

String

Message body, with a maximum of 2,097,152 bytes.

header

No

Map<String,Array<String>>

Header parameters, with each value being a character string array. Each parameter name must meet the following requirements:

  • Contains letters, digits, periods (.), or hyphens (-).

  • Starts with a letter, with a maximum of 32 bytes.

  • Case-insensitive and cannot start with X-Apig- or X-Sdk-.

  • Case-insensitive and cannot be X-Stage.

  • Case-insensitive and cannot be X-Auth-Token or Authorization when mode is set to MARKET or CONSUMER.

NOTE:

Each header name is normalized before use. For example, x-MY-hEaDer is normalized as X-My-Header.

method

Yes

String

API request method.

mode

Yes

String

Debugging mode:

  • DEVELOPER: Debug the definitions of an API that has not been published.

  • CONSUMER: Debug the definitions of an API that has been published in a specified environment.

NOTE:

In DEVELOPER mode, the API caller must be the API provider.

In CONSUMER mode, the API caller must be the API provider or has been authorized to access the API in a specific environment.

path

Yes

String

Request path of the API, starting with a slash (/) and containing up to 1024 characters.

NOTE:

The request path must meet the requirements so that it can be correctly decoded after percent-encoding.

query

No

Map<String,Array<String>>

Query strings, with each value being a character string array. Each parameter name must meet the following requirements:

  • Contains letters, digits, periods (.), hyphens (-), or underscores (_).

  • Starts with a letter, with a maximum of 32 bytes.

  • Case-insensitive and cannot start with X-Apig- or X-Sdk-.

  • Case-insensitive and cannot be X-Stage.

scheme

Yes

String

Request protocol.

  • HTTP

  • HTTPS

app_key

No

String

AppKey used in the debugging request.

app_secret

No

String

AppSecret used in the debugging request.

domain

No

String

Access domain name of the API. For gateways with custom inbound ports, the port information must be contained and separated by colons (:), for example, test.com:8080.

If no value is specified, one of the following default values will be used based on the mode:

  • DEVELOPER: The subdomain name of the API group will be used.

  • MARKET: This parameter is not used currently.

  • CONSUMER: The subdomain name of the API group will be used.

stage

No

String

Running environment specified by the debugging request. This parameter is valid only when mode is set to CONSUMER. If this parameter is not specified, the following default value is used:

  • CONSUMER RELEASE

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

request

String

Body of the debugging request.

response

String

Body of the debugging response, with a maximum of 2,097,152 bytes. Any content beyond this threshold will be truncated.

NOTE:

Any content beyond the length limit will be truncated, and text [TRUNCATED] will be added to the response body.

latency

Integer

Debugging duration in milliseconds.

log

String

Debugging logs.

Status code: 400

Table 5 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

Status code: 401

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

Status code: 403

Table 7 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

Status code: 404

Table 8 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

Status code: 500

Table 9 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error message.

Example Requests

Debugging an API

{
  "mode" : "DEVELOPER",
  "scheme" : "HTTPS",
  "method" : "GET",
  "path" : "/test/mock"
}

Example Responses

Status code: 200

OK

{
  "request" : "GET /test/mock HTTP/1.1\nHost: c77f5e81d9cb4424bf704ef2b0ac7600.apic.****.com\nUser-Agent: APIGatewayDebugClient/1.0\nX-Apig-Mode: debug\n\n",
  "response" : "HTTP/1.1 200 OK\nTransfer-Encoding: chunked\nConnection: keep-alive\nContent-Type: application/json\nDate: Mon, 03 Aug 2020 02:51:22 GMT\nServer: api-gateway\nX-Apig-Latency: 0\nX-Apig-Ratelimit-Api: remain:99,limit:100,time:1 minute\nX-Apig-Ratelimit-Api-Allenv: remain:14999,limit:15000,time:1 second\nX-Request-Id: d4ec6e33148bdeffe8f55b43472d1251\n\nmock success",
  "latency" : 5,
  "log" : ""
}

Status code: 400

Bad Request

{
  "error_code" : "APIG.2011",
  "error_msg" : "Invalid parameter value,parameterName:mode. Please refer to the support documentation"
}

Status code: 401

Unauthorized

{
  "error_code" : "APIG.1002",
  "error_msg" : "Incorrect token or token resolution failed"
}

Status code: 403

Forbidden

{
  "error_code" : "APIG.1005",
  "error_msg" : "No permissions to request this method"
}

Status code: 404

Not Found

{
  "error_code" : "APIG.3002",
  "error_msg" : "API 3a955b791bd24b1c9cd94c745f8d1aad does not exist"
}

Status code: 500

Internal Server Error

{
  "error_code" : "APIG.9999",
  "error_msg" : "System error"
}

Status Codes

Status Code

Description

200

OK

400

Bad Request

401

Unauthorized

403

Forbidden

404

Not Found

500

Internal Server Error

Error Codes

See Error Codes.

Parent topic:API Management