3Commas Helpers for generating a Signature and flatten a JSON body

3commas.helper.js

/**
 * Create a proper 3Commas signature (HMACSHA256)
 *
 * @param str string
 * @param secret string
 * @return {string}
 */
export function sign(str, secret) {
  return crypto.createHmac('sha256', secret).update(str).digest('hex');
}

/**
 * Take an object, parse it and stringify it and render a flat string.
 * Careful: this will remove all spaces in your JSON strings.
 *
 * @param body object
 * @return {string}
 */
export function transformBody(body) {
  return JSON.stringify(body)
    .replace(/(\r\n|\n|\r)/gm, "")
    .replace(/\s+/g, "");
}

/**
 * EXAMPLE
 */
export function main() {
  const uri = '/public/api/v2/smart_trades';
  const body = {foo: 'bar'};
  const fullParams = `${uri}?${transformBody(body)}`;
  const signature = sign(fullParams, process.env.THREECOMMAS_SECRET);
}