Creating a Variable¶

Function¶

Publishing an API in different environments may involve various variables, such as API service deployment address and request version.

You can define environment variables when creating an API. When the API is called, the environment variables will be replaced with the variable values to distinguish environments.

Environment variables are defined for an API group and apply to all APIs in the group.

Note

Environment variable names must be unique for an API group in the same environment.
Environment variable names are case-sensitive. For example, ABC and abc are two different variables.
APIs that use environment variables cannot be debugged.
You must enclose an environment variable in number signs (#) so that it can be replaced with the actual value of the environment in which the API is published. For example, if the URL of an API is https://#address#:8080 and the value of variable address is 192.168.1.5 in the RELEASE environment, the real URL of the API is https://192.168.1.5:8080 after publishing.

Calling Method¶

For details, see Calling APIs.

URI¶

POST /v2/{project_id}/apigw/instances/{instance_id}/env-variables

**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.

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.
env_id	Yes	String	Environment ID. Minimum: 1 Maximum: 65
group_id	Yes	String	API group ID. Minimum: 1 Maximum: 65
variable_name	Yes	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.

Response Parameters¶

Status code: 201

**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 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¶

Creating an environment variable

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

Example Responses¶

Status code: 201

Created

{
  "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:instance_id. 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.3003",
  "error_msg" : "The instance does not exist;id:f0fa1789-3b76-433b-a787-9892951c620ec"
}

Status code: 500

Internal Server Error

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

Status Codes¶

Status Code	Description
201	Created
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
500	Internal Server Error

Error Codes¶

See Error Codes.

last updated: 2024-12-13 16:21 UTC - commit: 9ff5103dad551eb3fcc6439582ab3ab13e6670f5