Help Center/ ROMA Connect/ API Reference/ Service Integration APIs/ Environment Variable Management/ Creating an Environment Variable

Updated on 2023-06-29 GMT+08:00

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Creating an Environment Variable

Function

After an API is published in different environments, the environment variables, such as the API service deployment address and request version number, may vary depending on the environment.

Users can define different environment variables when defining APIs. When an API is called, APIC replaces the variables with actual values to distinguish different environments.

Environment variables are defined in an API group and can be used by all APIs in the group.

The name of an environment variable must be unique. That is, an API group cannot have two variables with the same name in the same environment.

Environment variables are case sensitive. That is, variables ABC and abc are different.
After an environment variable is set, the debugging function of the API that uses the variable cannot be used.
After the environment variables are defined, the places where the environment variables are used must be symmetric.

URI

POST /v2/{project_id}/apic/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 the project ID, see Appendix > Obtaining a Project ID in the ROMA Connect API Reference.
instance_id	Yes	String	Instance ID.

Request Parameters

**Table 2** Request header parameters
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token, which can be obtained by calling the IAM API (value of X-Subject-Token in the response header).

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
variable_value	Yes	String	The variable value can contain 1 to 255 characters, including letters, digits, underscores (_), hyphens (-), slashes (/), periods (.), and colons (:).
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, including letters, digits, underscores (_), hyphens (-), slashes (/), periods (.), and colons (:).
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_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: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
201	Created
400	Bad Request
401	Unauthorized
403	Forbidden
404	Not Found
500	Internal Server Error

Error Codes

See Error Codes.

Parent topic: Environment Variable Management

Previous topic: Environment Variable Management

Next topic: Deleting an Environment Variable

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