feathers-google-maps

A Feathers service for Google Maps API

Installation

yarn add feathers-google-maps

Documentation

This service is a light wrapper around the @googlemaps/google-maps-services-js library. Please refer to the @googlemaps/google-maps-services-js documenation for options that can be passed. You will also find it helpful to reference the Google Maps Web Service APIs docs.

Available Services

The following methods are supported and map to the appropriate @google/maps methods:

• directions
• distancematrix
• elevation
• geocode
• reverseGeocode
• geolocate
• placeAutocomplete
• placeDetails
• findPlaceFromText
• placePhoto
• placesNearby
• placeQueryAutocomplete
• textSearch
• nearestRoads
• snapToRoads
• timezone

Creating a Service

const GoogleMapsService = require('feathers-google-maps');

const Directions = new GoogleMapsService({
  key: 'YOUR API KEY',
  method: 'directions'
});

app.use('directions', Directions);

The service exposes two methods, find(params) and create(data, params). These two methods are functionally equivalent. The create() method is added so that you can take advantage of the .on('created') service event.

When using the find(params) method, include the query as the params to be passed to the underlying GoogleMaps method.

app.service('directions').find({
  query: {
    origin: 'Nashville, TN',
    destination: 'Memphis, TN'
  }
});

// This will call the googlMaps method like
googleMaps.directions({
  params: {
    origin: 'Nashville, TN',
    destination: 'Memphis, TN',
    key: 'YOUR API KEY'
  }
});

When using the create(data, params) method, the data will be passed to the underlying GoogleMaps method.

app.service('directions').create({
  origin: 'Nashville, TN',
  destination: 'Memphis, TN'
});

// This will also call the googlMaps method like
googleMaps.directions({
  params: {
    origin: 'Nashville, TN',
    destination: 'Memphis, TN',
    key: 'YOUR API KEY'
  }
});

Complete Example

const feathers = require('@feathersjs/feathers');
const express = require('@feathersjs/express');
const socketio = require('@feathersjs/socketio');
const GoogleMapsService = require('feathers-google-maps');

// Initialize the application
const app = feathers()
  .configure(express.rest())
  .configure(socketio())
  .use(express.json())
  .use(express.urlencoded({ extended: true }))
  .use(express.errorHandler({ html: false }));

// Create a directions service
app.use('directions', new GoogleMapsService({
  key: 'YOUR API KEY',
  method: 'directions'
}));

// Create a geocode service
app.use('geocode', new GoogleMapsService({
  key: 'YOUR API KEY',
  method: 'geocode'
}));

const directionsService = app.service('directions');
const geocodeService = app.service('geocode');

const successHook = context => {
  // On success, context.params.googleMaps will include a `response`
  console.log('Success: ', context.data, context.params.googleMaps);
}

const errorHook = context => {
  // On error, context.params.googleMaps will include an `error`
  console.log('Error: ', context.error, context.params.googleMaps);
}

directionsService.hooks(
  after: {
    find: [successHook]
    create: [successHook]
  },
  error: {
    find: [errorHook]
    create: [errorHook]
  },
);

directionsService.on('created', result => {
  console.log('Directions created event');
})

geocodeService.hooks(
  after: {
    find: [successHook]
    create: [successHook]
  },
  error: {
    find: [errorHook]
    create: [errorHook]
  },
);

geocodeService.on('created', result => {
  console.log('Geocode created event');
})

directionsService
  .find({ query: { origin: 'Nashville, TN', destination: 'Memphis, TN' } })
  .then(result => {
    console.log('Directions found', result);
  })
  .catch(error => {
    console.log('Error finding directions', error);
  });

directionsService
  .create({ origin: 'Nashville, TN', destination: 'Memphis, TN' })
  .then(result => {
    console.log('Directions created', result);
  })
  .catch(error => {
    console.log('Error creating directions', error);
  });

geocodeService
  .find({ query: { address: '1010 Forrest Ave, Nashville, TN' } })
  .then(result => {
    console.log('Geocode found', result);
  })
  .catch(error => {
    console.log('Error geocoding', error);
  });

geocodeService
  .create({ address: '1010 Forrest Ave, Nashville, TN' })
  .then(result => {
    console.log('Geocode found', result);
  })
  .catch(error => {
    console.log('Error geocoding', error);
  });

app.listen(3030);

console.log('Feathers app started on 127.0.0.1:3030');

License

Copyright (c) 2019

Licensed under the MIT license.