Node.js Google Maps geocode API wrapper

google-geocoder.js

'use strict'

const request = require('request-promise');

module.exports = Geocoder;

function Geocoder(options) {
  if(!options.apiKey) {
    throw new Error('api key is required');
  }

  if (!(this instanceof Geocoder)) {
    return new Geocoder();
  }

  this.url = 'https://maps.googleapis.com/maps/api/geocode/json';
  this.apiKey = options.apiKey;
}

function validateOptions(options) {
  if(!options.address && !options.components) {
    throw new Error('address or components parameters are required');
  }
}

Geocoder.prototype.geocode = function(options) {
  validateOptions(options);

  let rOptions = {
    uri: this.url,
    qs: { key: this.apiKey },
    json: true
  }

  if(options.components) {
    rOptions.qs.components = options.components;
  }

  if(options.address) {
    rOptions.qs.address = options.address;
  }

  return request(rOptions);
}