Help Center> API Gateway> API Reference> Dedicated Gateway APIs (V2)> Environment Variable Management> Modifying a Variable
Updated on 2023-11-30 GMT+08:00
Online Debugging
CLI Examples
View PDF

Modifying a Variable

Function

This API is used to modify an environment variable. If an environment variable is referenced by the backend service address of an API, modifying the environment variable will publish all APIs that use the variable again.

Calling Method

For details, see Calling APIs.

URI

PUT /v2/{project_id}/apigw/instances/{instance_id}/env-variables/{env_variable_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.

env_variable_id

Yes

String

Environment variable 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

variable_value

Yes

String

The variable value can contain 1 to 255 characters. Only letters, digits, and special characters (_-/.:) are allowed.

Response Parameters

Status code: 200

Table 4 Response body parameters

Parameter

Type

Description

variable_value

String

The variable value can contain 1 to 255 characters. Only letters, digits, and special characters (_-/.:) are allowed.

env_id

String

Environment ID.

Minimum: 1

Maximum: 65

group_id

String

API group ID.

Minimum: 1

Maximum: 65

variable_name

String

Variable name, which can contain 3 to 32 characters, starting with a letter. Only letters, digits, hyphens (-), and underscores (_) are allowed. The variable name is equivalent to "#Name#" in API definitions. Characters between the number signs are case-sensitive. The variable name will be replaced with the variable value after API publication.

id

String

Environment variable ID.

Status code: 400

Table 5 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error description.

Status code: 401

Table 6 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error description.

Status code: 403

Table 7 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error description.

Status code: 404

Table 8 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error description.

Status code: 500

Table 9 Response body parameters

Parameter

Type

Description

error_code

String

Error code.

error_msg

String

Error description.

Example Requests

{
  "variable_value" : "192.168.1.5"
}

Example Responses

Status code: 200

OK

{
  "variable_value" : "192.168.1.5",
  "env_id" : "7a1ad0c350844ee69479b47df9a881cb",
  "group_id" : "c77f5e81d9cb4424bf704ef2b0ac7600",
  "id" : "25054838a624400bbf2267cf5b3a3f70",
  "variable_name" : "address"
}

Status code: 400

Bad Request

{
  "error_code" : "APIG.2012",
  "error_msg" : "Invalid parameter value,parameterName:variable_name"
}

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.3003",
  "error_msg" : "Environment 7a1ad0c350844ee69479b47df9a881cb 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.