Starting a Graph

This API is used to start a graph. You can disable a graph if it is not used temporarily.

POST /v2/{project_id}/graphs/{graph_id}/start

**Table 1** URI parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details about how to obtain the project ID, see Obtaining a Project ID.
graph_id	Yes	String	Graph ID

**Table 2** Request header parameter
Parameter	Mandatory	Type	Description
X-Auth-Token	Yes	String	User token. It is used to obtain the permission to call APIs. For details about how to obtain the token, see Authentication. The value of X-Subject-Token in the response header is the token.

**Table 3** Request body parameters
Parameter	Mandatory	Type	Description
graph_backup_id	No	String	Backup ID associated during graph startup. If this parameter is configured, the graph starts from the backup. If this parameter is left blank, the graph starts from the status when it was closed last time.

Status code: 200

**Table 4** Response body parameters
Parameter	Type	Description
job_id	String	ID of the graph startup job. This parameter is left blank when the request fails.

Status code: 400

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	System prompt. If the execution succeeds, this parameter may be left blank. If the execution fails, this parameter is used to display the error code.
error_msg	String	System prompt. If the execution succeeds, this parameter may be left blank. If the execution fails, this parameter is used to display the error message.

Start a graph whose associated backup ID is 08a898ae-3ff8-40e8-a7ed-03afe05aedbb.

POST https://Endpoint/v2/{project_id}/graphs/{graph_id}/start

{
  "graph_backup_id" : "08a898ae-3ff8-40e8-a7ed-03afe05aedbb"
}

Status code: 200

Example response for a successful request

{
  "job_id" : "ff8080816025a0a1016025a5a2700007"
}

Status code: 400

Example response for a failed request

{
  "error_code" : "GES.7006",
  "error_msg" : "An internal error occurs in the underlying service of the graph engine."
}