The request structure of Volcano Engine OpenAPI is as follows:

Request structure #

To call the Volcano Engine OpenAPI, customers must send a request to the specified service address, and the request must include both the Volcano Engine signature information and the business information required by the specific API. The organization of the Volcano Engine OpenAPI request structure is as follows, using an unencoded URL request example for GetCluster:

POST /?Action=GetCluster&Version=2025-08-15&<接口请求参数> HTTP/1.1
Host: las.cn-beijing.volcengineapi.com 
Region: cn-beijing
Service: las

• POST indicates the request method.
• Action=GetCluster specifies the API to be called, and Version=2025-08-15 is the version of the API.
• Host specifies the Volcano Engine service access address (endpoint). For details, see Service address.
• Region and Service are the region and service name for the request. For details, see the common parameters.
• HTTP specifies the communication protocol for the request.

Communication protocol #

It is recommended to use HTTPS, which provides higher security, to send requests.

Request method #

For details on the request method, refer to the specific requirements of each API. Most OpenAPI interfaces in Volcano Engine support GET or POST requests.

Request parameters #

Volcano Engine OpenAPI requests include two types of parameters: common request parameters and API request parameters. Common request parameters must be included in every request. API request parameters should be referenced in the documentation for each service.

Character encoding #

Requests and responses use the UTF-8 character set for encoding.