curl --request POST \
  --url https://api.grainfinance.co/v1/payouts/{proposalId}/submit \
  --header 'Authorization: Basic <encoded-value>'

import requests

url = "https://api.grainfinance.co/v1/payouts/{proposalId}/submit"

headers = {"Authorization": "Basic <encoded-value>"}

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

print(response.text)

const options = {method: 'POST', headers: {Authorization: 'Basic <encoded-value>'}};

fetch('https://api.grainfinance.co/v1/payouts/{proposalId}/submit', 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.grainfinance.co/v1/payouts/{proposalId}/submit",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>"
  ],
]);

$response = curl_exec($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.grainfinance.co/v1/payouts/{proposalId}/submit"

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

	req.Header.Add("Authorization", "Basic <encoded-value>")

	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.grainfinance.co/v1/payouts/{proposalId}/submit")
  .header("Authorization", "Basic <encoded-value>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.grainfinance.co/v1/payouts/{proposalId}/submit")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Basic <encoded-value>'

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

{
  "id": "8173b9a7-ee61-413e-b9e3-7c04b2a067c5",
  "status": "in_process",
  "externalPayoutId": "inv_2026_001",
  "currency": "USD",
  "amount": 5000,
  "fee": 1.5,
  "totalAmount": 5001.5,
  "reason": 2,
  "description": "<string>",
  "payoutDate": "2026-05-15",
  "payoutMethod": "SEPA",
  "vendorDetails": {
    "vendorId": "1b0ada1e-fa1b-4cfe-a553-01b340c5650e",
    "vendorName": "Acme Supplies Ltd",
    "externalVendorId": "vendor_001",
    "bankDetails": {
      "accountHolderName": "Acme Payments Ltd",
      "accountNumber": "8290041523",
      "bankName": "JPMorgan Chase Bank, N.A.",
      "bankAddress": "383 Madison Avenue, New York, NY 10017",
      "bankCountry": "US",
      "bankState": "NY",
      "iban": "<string>",
      "bicSwift": "CHASUS33XXX",
      "routingCode": "<string>",
      "bankCode": "<string>",
      "branchCode": "<string>",
      "sortCode": "560036",
      "bsbCode": "082902"
    }
  }
}

{
  "message": "Can't perform this action",
  "reason": "Supplied object is in *Cancelled* state, which prevents performing this action"
}

{
  "message": "Can't perform this action",
  "reason": "Supplied object is in *Cancelled* state, which prevents performing this action"
}

{
  "message": "Can't perform this action",
  "reason": "Supplied object is in *Cancelled* state, which prevents performing this action"
}

{
  "message": "Can't perform this action",
  "reason": "Supplied object is in *Cancelled* state, which prevents performing this action"
}

{
  "message": "Can't perform this action",
  "reason": "Supplied object is in *Cancelled* state, which prevents performing this action"
}