Langflow V2 Workflow API (1.8.0)
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Filtered API for Langflow V2 workflow operations (3 endpoints)
Execute Workflow
Execute a workflow with support for sync, stream, and background modes
Authorizations:
API key queryAPI key header
Request Body schema: application/jsonrequired
| background | boolean (Background) Default: false |
| stream | boolean (Stream) Default: false |
| flow_id required | string (Flow Id) |
Inputs (object) or Inputs (null) (Inputs) Component-specific inputs in flat format: 'component_id.param_name': value |
Responses
Request samples
- Payload
Content type
application/json
{- "background": false,
- "flow_id": "flow_67ccd2be17f0819081ff3bb2cf6508e60bb6a6b452d3795b",
- "inputs": {
- "ChatInput-abc.input_value": "Hello, how can you help me today?",
- "ChatInput-abc.session_id": "session-123",
- "LLM-xyz.max_tokens": 100,
- "LLM-xyz.temperature": 0.7,
}, - "stream": false
}Response samples
- 200
- 422
Content type
Example
{- "flow_id": "string",
- "job_id": "string",
- "object": "response",
- "created_timestamp": "string",
- "status": "queued",
- "errors": [ ],
- "inputs": { },
- "outputs": { }
}Get Workflow Status
Get status of workflow job by job ID
Authorizations:
API key queryAPI key header
query Parameters
Job Id (string) or Job Id (string) or Job Id (null) (Job Id) Job ID to query |
Responses
Response samples
- 200
- 422
Content type
Example
{- "flow_id": "string",
- "job_id": "string",
- "object": "response",
- "created_timestamp": "string",
- "status": "queued",
- "errors": [ ],
- "inputs": { },
- "outputs": { }
}Stop Workflow
Stop a running workflow execution
Authorizations:
API key queryAPI key header
Request Body schema: application/jsonrequired
required | Job Id (string) or Job Id (string) (Job Id) |
Any of string (Job Id) | |
Responses
Request samples
- Payload
Content type
application/json
{- "job_id": "string"
}Response samples
- 200
- 422
Content type
application/json
{- "job_id": "string",
- "message": "string"
}