code: function getExchangeRate(config) {
    const options = {
      method: "GET",
      uri: `${config.obServer}:${config.obPort}/ob/exchangerate`,
      json: true, // Automatically stringifies the body to JSON
      headers: {
        Authorization: config.apiCredentials,
      },
      // resolveWithFullResponse: true
    };
  
    return rp(options);
  }
docs: Get wallet balance