Creating an Environment Variable

Function

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

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.

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.

URI

The following table lists the HTTP/HTTPS request method and URI of the API.

**Table 1** HTTP/HTTPS request method and URI
Request Method	URI
POST	/v1.0/apigw/env-variables

Request

**Table 2** Parameter description
Parameter	Mandatory	Type	Description
env_id	Yes	String	Environment ID
group_id	Yes	String	API group ID
variable_name	Yes	String	Variable name A variable name consists of 3–32 characters, starting with a letter. Only letters, digits, hyphens (-), and underscores (_) are allowed. The variable name is equivalent to #Name# in an API definition. Characters between the number signs are case-sensitive. The variable name will be replaced with the variable value after API publishing.
variable_value	Yes	String	Variable value A variable value consists of 1–255 characters. Only letters, digits, and special characters (_-/.:) are allowed.

Example request:

{
	"env_id": "cca3616a-f368-4b32-9064-b2a631cb3eeb",
	"group_id": "73c58022-f20d-495a-a188-85d718647f09",
	"variable_name": "address",
	"variable_value": "192.168.1.5"
}

Response

**Table 3** Parameter description
Parameter	Type	Description
id	String	Environment variable ID
env_id	String	Environment ID
group_id	String	API group ID
variable_name	String	Variable name
variable_value	String	Variable value

Example response:

{
	"id": "104185e5-3e8f-4c63-a7e5-ef4117bf870c",
	"env_id": "cca3616a-f368-4b32-9064-b2a631cb3eeb",
	"group_id": "73c58022-f20d-495a-a188-85d718647f09",
	"variable_name": "address",
	"variable_value": "192.168.1.5"
}