Help Center/ FunctionGraph/ API Reference/ APIs/ Function Flows/ Executing a Flow Synchronously

Updated on 2024-01-12 GMT+08:00

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Executing a Flow Synchronously

Function

This API is used to execute an express flow synchronously. It is available only in the Chinese mainland regions.

URI

POST /v2/{project_id}/fgs/workflows/{workflow_id}/sync-executions

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
project_id	Yes	String	Project ID. For details, see Obtaining a Project ID. Minimum: 1 Maximum: 64
workflow_id	Yes	String	Flow definition ID. Minimum: 1 Maximum: 512

Request Parameters

**Table 2** Request body parameters
Parameter	Mandatory	Type	Description
headers	No	Object	Headers for flow execution.
input	Yes	Object	Input parameters for flow execution. You can use JSONPath for parameter mapping and specify a default value.

Response Parameters

Status code: 200

**Table 3** Response body parameters
Parameter	Type	Description
execution_id	String	Flow instance ID. Minimum: 1 Maximum: 64
status	String	Flow execution status. Minimum: 1 Maximum: 64 Enumeration values: success fail timeout
output	Object	Flow execution result in JSON format. This parameter has a value only when the status is success.
errors	Array of SyncExecutionNodeErrorDetail objects	Flow execution error information. This parameter has a value only when status is fail. Array Length: 0 - 200
begin_time	String	Flow instance creation time (UTC), in the format yyyy-MM-ddTHH:mm:ssZ. Minimum: 0 Maximum: 64
end_time	String	Flow instance end time (UTC), in the format yyyy-MM-ddTHH:mm:ssZ. Minimum: 0 Maximum: 64

**Table 4** SyncExecutionNodeErrorDetail
Parameter	Type	Description
node_id	String	Flow node ID. Minimum: 1 Maximum: 64
error_message	String	Error details. Minimum: 1 Maximum: 2048
begin_time	String	Flow instance creation time (UTC), in the format yyyy-MM-ddTHH:mm:ssZ. Minimum: 0 Maximum: 64
end_time	String	Flow instance end time (UTC), in the format yyyy-MM-ddTHH:mm:ssZ. Minimum: 0 Maximum: 64

Status code: 400

**Table 5** Response body parameters
Parameter	Type	Description
error_code	String	Error code. Minimum: 1 Maximum: 36
error_msg	String	Error description. Minimum: 2 Maximum: 512

Status code: 404

**Table 6** Response body parameters
Parameter	Type	Description
error_code	String	Error code. Minimum: 1 Maximum: 36
error_msg	String	Error description. Minimum: 2 Maximum: 512

Status code: 500

**Table 7** Response body parameters
Parameter	Type	Description
error_code	String	Error code. Minimum: 1 Maximum: 36
error_msg	String	Error description. Minimum: 2 Maximum: 512

Example Requests

Execute a flow synchronously.

POST /{project_id}/fgs/workflows/{workflow_id}/sync-executions

{
  "headers" : {
    "tenantId" : "user1"
  },
  "input" : {
    "arg1" : "argument_1",
    "arg2" : "argument_2"
  }
}

Example Responses

Status code: 200

Success

{
  "execution_id" : "48aff955-ea10-4ffd-b426-190bc192dc14",
  "status" : "success",
  "output" : {
    "result" : 200,
    "message" : "success"
  },
  "errors" : [ {
    "node_id" : "48aff955-ea10-4ffd-b426-190bc192dc14",
    "error_message" : "Exception happened",
    "begin_time" : "2021-01-01T00:00:00Z",
    "end_time" : "2021-01-01T00:00:00Z"
  } ],
  "begin_time" : "2021-01-01T00:00:00Z",
  "end_time" : "2021-01-01T00:00:00Z"
}