Dispatch approval execution (v2)

Start a new approval workflow execution from a definition using the Velt v2 REST API, passing inputs and context to launch a fresh run.

POST /v2/workflow/executions/dispatch

Dispatch Execution

cURL

curl --request POST \
  --url https://api.velt.dev/v2/workflow/executions/dispatch \
  --header 'Content-Type: application/json' \
  --header 'x-velt-api-key: <x-velt-api-key>' \
  --header 'x-velt-auth-token: <x-velt-auth-token>' \
  --data '
{
  "data": {
    "definitionId": "<string>",
    "idempotencyKey": "<string>",
    "correlationId": "<string>",
    "triggerContext": {},
    "organizationId": "<string>",
    "documentId": "<string>",
    "folderId": "<string>",
    "webhookUrl": "<string>",
    "webhookSecret": "<string>"
  }
}
'

import requests

url = "https://api.velt.dev/v2/workflow/executions/dispatch"

payload = { "data": {
        "definitionId": "<string>",
        "idempotencyKey": "<string>",
        "correlationId": "<string>",
        "triggerContext": {},
        "organizationId": "<string>",
        "documentId": "<string>",
        "folderId": "<string>",
        "webhookUrl": "<string>",
        "webhookSecret": "<string>"
    } }
headers = {
    "x-velt-api-key": "<x-velt-api-key>",
    "x-velt-auth-token": "<x-velt-auth-token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-velt-api-key': '<x-velt-api-key>',
    'x-velt-auth-token': '<x-velt-auth-token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    data: {
      definitionId: '<string>',
      idempotencyKey: '<string>',
      correlationId: '<string>',
      triggerContext: {},
      organizationId: '<string>',
      documentId: '<string>',
      folderId: '<string>',
      webhookUrl: '<string>',
      webhookSecret: '<string>'
    }
  })
};

fetch('https://api.velt.dev/v2/workflow/executions/dispatch', 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.velt.dev/v2/workflow/executions/dispatch",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'data' => [
        'definitionId' => '<string>',
        'idempotencyKey' => '<string>',
        'correlationId' => '<string>',
        'triggerContext' => [
                
        ],
        'organizationId' => '<string>',
        'documentId' => '<string>',
        'folderId' => '<string>',
        'webhookUrl' => '<string>',
        'webhookSecret' => '<string>'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-velt-api-key: <x-velt-api-key>",
    "x-velt-auth-token: <x-velt-auth-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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.velt.dev/v2/workflow/executions/dispatch"

	payload := strings.NewReader("{\n  \"data\": {\n    \"definitionId\": \"<string>\",\n    \"idempotencyKey\": \"<string>\",\n    \"correlationId\": \"<string>\",\n    \"triggerContext\": {},\n    \"organizationId\": \"<string>\",\n    \"documentId\": \"<string>\",\n    \"folderId\": \"<string>\",\n    \"webhookUrl\": \"<string>\",\n    \"webhookSecret\": \"<string>\"\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-velt-api-key", "<x-velt-api-key>")
	req.Header.Add("x-velt-auth-token", "<x-velt-auth-token>")
	req.Header.Add("Content-Type", "application/json")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.velt.dev/v2/workflow/executions/dispatch")
  .header("x-velt-api-key", "<x-velt-api-key>")
  .header("x-velt-auth-token", "<x-velt-auth-token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"data\": {\n    \"definitionId\": \"<string>\",\n    \"idempotencyKey\": \"<string>\",\n    \"correlationId\": \"<string>\",\n    \"triggerContext\": {},\n    \"organizationId\": \"<string>\",\n    \"documentId\": \"<string>\",\n    \"folderId\": \"<string>\",\n    \"webhookUrl\": \"<string>\",\n    \"webhookSecret\": \"<string>\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.velt.dev/v2/workflow/executions/dispatch")

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

request = Net::HTTP::Post.new(url)
request["x-velt-api-key"] = '<x-velt-api-key>'
request["x-velt-auth-token"] = '<x-velt-auth-token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"data\": {\n    \"definitionId\": \"<string>\",\n    \"idempotencyKey\": \"<string>\",\n    \"correlationId\": \"<string>\",\n    \"triggerContext\": {},\n    \"organizationId\": \"<string>\",\n    \"documentId\": \"<string>\",\n    \"folderId\": \"<string>\",\n    \"webhookUrl\": \"<string>\",\n    \"webhookSecret\": \"<string>\"\n  }\n}"

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

{
  "result": {
    "executionId": "exec_1777374504255_xzy43k9q",
    "correlationId": "corr_campaign_42",
    "deduplicated": false
  }
}

Use this API to start a new execution of a workflow definition. Dispatch pins the current definition version, stamps a correlation ID and idempotency key, and enqueues the first step(s).

Endpoint

POST https://api.velt.dev/v2/workflow/executions/dispatch

Headers

x-velt-api-key · string · required

Your API key.

x-velt-auth-token · string · required

Your Auth Token.

Body

Params

data · object · required

Show properties

definitionId · string · required

Must exist with status: "active".

idempotencyKey · string

^[A-Za-z0-9:_\-.]{1,200}$. Replaying with the same key returns the prior executionId.

correlationId · string

^[A-Za-z0-9:_\-.]{1,200}$. Server-generated if omitted.

triggerContext · object

Free-form payload exposed as execution.input.* in edge expressions.

organizationId · string

Required when the definition is scoped to an organization or document.

documentId · string

Required when the definition is scoped to a document.

folderId · string

Optional folder association.

webhookUrl · string

HTTPS-only per-execution receiver. Must be paired with webhookSecret.

webhookSecret · string

16–512 chars. Used to sign webhook deliveries with HMAC-SHA256.

webhookUrl is validated at the schema boundary and re-checked at delivery time. Scheme must be https://. Literal IP hosts in loopback, private (RFC 1918), link-local, or IPv4-mapped-private ranges are rejected. Forbidden hostnames include localhost, metadata.google.internal, metadata, and any *.internal. At delivery, DNS resolution is repeated; if any resolved address is private, the request is not sent. Redirects are never followed.

Example Requests

Dispatch with idempotency and webhook

{
  "data": {
    "definitionId": "marketing-copy-approval",
    "idempotencyKey": "campaign-42-dispatch",
    "correlationId": "corr_campaign_42",
    "triggerContext": { "assetId": "asset_8f3", "campaign": "Q2 launch" },
    "webhookUrl": "https://hooks.acme.com/velt/approvals",
    "webhookSecret": "whsec_9a8fS2l..."
  }
}

Response

Success Response

{
  "result": {
    "executionId": "exec_1777374504255_xzy43k9q",
    "correlationId": "corr_campaign_42",
    "deduplicated": false
  }
}

deduplicated: true indicates a replay (including in-tx contention) — the returned executionId is the original execution’s id.

Failure Response

{
  "error": {
    "message": "ERROR_MESSAGE",
    "status": "NOT_FOUND"
  }
}

Errors: NOT_FOUND (no definition or tombstoned) / FAILED_PRECONDITION (tombstoned) / INVALID_ARGUMENT (schema validation).

{
  "result": {
    "executionId": "exec_1777374504255_xzy43k9q",
    "correlationId": "corr_campaign_42",
    "deduplicated": false
  }
}