Bitvavo get balance via REST API

bitvavo.js

const crypto = require('crypto');
const fetch = require('node-fetch')

// Replace with your actual API key and secret
const API_KEY = 'YOUR_KEY';
const API_SECRET = 'YOUR_SECRET';

// Define the endpoint and method
const endpoint = 'https://api.bitvavo.com/v2/balance';
const method = 'GET';

// Generate the current timestamp in milliseconds
const timestamp = Date.now();

// Define the window in milliseconds
const accessWindow = 30000;

// Construct the signature payload
const signaturePayload = timestamp + method + '/v2/balance';

// Create the HMAC SHA256 signature
const signature = crypto
  .createHmac('sha256', API_SECRET)
  .update(signaturePayload)
  .digest('hex');

// Create the headers
const headers = {
  'bitvavo-access-key': API_KEY,
  'bitvavo-access-timestamp': timestamp,
  'bitvavo-access-signature': signature,
  'bitvavo-access-window': accessWindow.toString(),
  'accept': 'application/json',
};

async function callBitvavo() {
  const response = await fetch(endpoint, {
      method: method,
      headers: headers,
    });

    if (!response.ok) {
      throw new Error(
        `HTTP Error ${response.status}: ${await response.text()}`
      );
    }

    const data = await response.json();
    return data
}
const data = await callBitvavo()
// Make the request using fetch
return { data }