Stream Workflow Events

GET

workflow

{workflow_run_id}

events

curl --request GET \
  --url https://{api_base_url}/workflow/{workflow_run_id}/events \
  --header 'Authorization: Bearer <token>'

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://{api_base_url}/workflow/{workflow_run_id}/events', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{api_base_url}/workflow/{workflow_run_id}/events",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://{api_base_url}/workflow/{workflow_run_id}/events"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://{api_base_url}/workflow/{workflow_run_id}/events")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

"data: {\"event\": \"human_input_form_filled\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"node_id\": \"approval_node\", \"node_title\": \"Approval\", \"rendered_content\": \"Please review the draft.\", \"action_id\": \"approve\", \"action_text\": \"Approve\"}} data: {\"event\": \"node_started\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"id\": \"node_exec_2\", \"node_id\": \"node_1\", \"node_type\": \"llm\", \"title\": \"LLM Node\", \"index\": 2, \"created_at\": 1705407705}} data: {\"event\": \"reasoning_chunk\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"reasoning\": \"Approved, now translating.\", \"node_id\": \"node_1\", \"is_final\": false}} data: {\"event\": \"reasoning_chunk\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"reasoning\": \"\", \"node_id\": \"node_1\", \"is_final\": true}} data: {\"event\": \"text_chunk\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"text\": \"Bonjour\", \"from_variable_selector\": [\"node_1\", \"text\"]}} data: {\"event\": \"workflow_finished\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"workflow_id\": \"7c3e33d4-2a8b-4e5f-9b1a-d3c6e8f12345\", \"status\": \"succeeded\", \"outputs\": {\"result\": \"Bonjour\"}, \"elapsed_time\": 2.1, \"total_tokens\": 42, \"total_steps\": 2, \"created_at\": 1705407629, \"finished_at\": 1705407706}}"

{
  "status": 400,
  "code": "not_workflow_app",
  "message": "Please check if your app mode matches the right API route."
}

{
  "status": 404,
  "code": "not_found",
  "message": "Workflow run not found"
}

Authorizations

Authorization

string

header

required

API Key authentication. For all API requests, include your API Key in the Authorization HTTP Header, prefixed with Bearer. Example: Authorization: Bearer {API_KEY}. Strongly recommend storing your API Key on the server-side, not shared or stored on the client-side, to avoid possible API-Key leakage that can lead to serious consequences.

Path Parameters

workflow_run_id

string<uuid>

required

The workflow run ID (the workflow_run_id from the original run response) whose event stream to resume.

Query Parameters

user

string

required

End-user identifier that originally triggered the run. Must match the creator of the workflow run.

include_state_snapshot

boolean

default:false

When true, replay from the persisted state snapshot to include a status summary of already-executed nodes before streaming new events.

continue_on_pause

boolean

default:false

Set to true to keep the stream open across multiple workflow_paused events (useful when the workflow has more than one Human Input node in sequence). Default closes the stream after the first pause.

Response

Server-Sent Events stream. Each event is delivered as data: {JSON}\n\n. Event payloads follow the same schemas as the original streaming response.

SSE stream of events from a resumed workflow run, in the same format as Run Workflow. When the resumed portion runs an LLM node with reasoning_format: separated, this stream also carries reasoning_chunk events.

Last modified on July 2, 2026

Stream Workflow Events

curl --request GET \
  --url https://{api_base_url}/workflow/{workflow_run_id}/events \
  --header 'Authorization: Bearer <token>'

const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};

fetch('https://{api_base_url}/workflow/{workflow_run_id}/events', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{api_base_url}/workflow/{workflow_run_id}/events",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://{api_base_url}/workflow/{workflow_run_id}/events"

	req, _ := http.NewRequest("GET", url, nil)

	req.Header.Add("Authorization", "Bearer <token>")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://{api_base_url}/workflow/{workflow_run_id}/events")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

"data: {\"event\": \"human_input_form_filled\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"node_id\": \"approval_node\", \"node_title\": \"Approval\", \"rendered_content\": \"Please review the draft.\", \"action_id\": \"approve\", \"action_text\": \"Approve\"}} data: {\"event\": \"node_started\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"id\": \"node_exec_2\", \"node_id\": \"node_1\", \"node_type\": \"llm\", \"title\": \"LLM Node\", \"index\": 2, \"created_at\": 1705407705}} data: {\"event\": \"reasoning_chunk\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"reasoning\": \"Approved, now translating.\", \"node_id\": \"node_1\", \"is_final\": false}} data: {\"event\": \"reasoning_chunk\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"reasoning\": \"\", \"node_id\": \"node_1\", \"is_final\": true}} data: {\"event\": \"text_chunk\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"text\": \"Bonjour\", \"from_variable_selector\": [\"node_1\", \"text\"]}} data: {\"event\": \"workflow_finished\", \"task_id\": \"c3800678-a077-43df-a102-53f23ed20b88\", \"workflow_run_id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"data\": {\"id\": \"fb47b2e6-5e43-4f90-be01-d5c5a088d156\", \"workflow_id\": \"7c3e33d4-2a8b-4e5f-9b1a-d3c6e8f12345\", \"status\": \"succeeded\", \"outputs\": {\"result\": \"Bonjour\"}, \"elapsed_time\": 2.1, \"total_tokens\": 42, \"total_steps\": 2, \"created_at\": 1705407629, \"finished_at\": 1705407706}}"

{
  "status": 400,
  "code": "not_workflow_app",
  "message": "Please check if your app mode matches the right API route."
}

{
  "status": 404,
  "code": "not_found",
  "message": "Workflow run not found"
}

Chat and Agent

Chatflow

Workflow

Knowledge

Text Completion

Stream Workflow Events

Authorizations

Path Parameters

Query Parameters

Response