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SendGrid Node.js helper library

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README.md

sendgrid-nodejs

This nodejs module allows you to quickly and easily send emails through SendGrid using nodejs.

License

Licensed under the MIT License.

Install

npm install sendgrid-nodejs

Usage

It can be this easy

var SendGrid = require('sendgrid').SendGrid;
var sendgrid = new SendGrid(user, key);
sendgrid.send({
  to: 'example@example.com',
  from: 'other@example.com',
  subject: 'Hello World',
  text: 'My first email through SendGrid'
});

And you're done!

Digging in

There are two objects that you really need to know to get started:

  • SendGrid
  • Email

Email

Email is the object that will help you easily perpare your message to be sent.

NOTE: anything that is available in the Email constructor is available for use in both the sendgrid.send and sendgrid.smtp functions.

To get started create an Email object:

var Email = require('sendgrid-nodejs').Email;
var email = new Email(optionalParams);

You can pass in as much or as little to optionalParams as you want, as the email object has methods for manipulating all of the data.

params structure

var optionalParams = {
  to: [],
  from: '',
  smtpapi: new SmtpapiHeaders(),
  subject: '',
  text: '',
  html: '',
  bcc: [],
  replyto: '',
  date: new Date(),
  files: [
    {
      filename: '',          // required only if file.content is used.
      contentType: '',       // optional
      path: '',              //
      url: '',               // == One of these three options is required
      content: ('' | Buffer) //
    }
  ],
  file_data: {},
  headers: {}
};

Sample for using it:

var email = new Email({
  to: 'walks.it.in@sample.com',
  from: 'arsenal@sample.com',
  subject: 'What was Wenger thinking sending Walcott on that early?',
  text: 'Did you see that ludicrous display last night?'
});
Setting data

Here is an example of all of the functions available on the email object. The comments to the right show the current state of the variables as the functions are called. If you have specific question, see the SendGrid API Docs. Feel free to open an issue if you find bugs or missing features.

var email = new Email({
  to: 'denim@sample.com',
  from: 'roy@sample.com',
  subject: 'Listen',
  text: 'Have you tried turning it off and on again'
});

/** The following examples update the 'x-smtpapi' headers **/

/* To Addresses */
email.addTo('moo@cow.com');       // to = ['moo@cow.com']
email.addTo(['solid@snake.com',
            'liquid@snake.com']); // to = ['moo@cow.com', 'solid@snake.com', 'liquid@snake.com']

/* Custom Email Headers */
email.setHeaders({full: 'hearts'});   // headers = {full: 'hearts'}
email.addHeaders({spin: 'attack'});   // headers = {full: 'hearts', spin: 'attack'}
email.setHeaders({mask: 'salesman'}); // headers = {mask: 'salesman'}

/* Substitution */
email.addSubVal('keep', 'secret'); // sub = {keep: ['secret']}
email.addSubVal('keep', 'safe');   // sub = {keep: ['secret', 'safe']}

/* Section */
email.setSection({'-charge-': 'This ship is useless.'}); // section = {'-charge-': 'This ship is useless.'}
email.addSection({'-bomber-': 'Only for sad vikings.'}); // section = {'-charge-': 'This ship is useless.',
                                                         //            '-bomber-': 'Only for sad vikings.'}
email.setSection({'-beam-': 'The best is for first'});   // section = {'-beam-': 'The best is for first'}

/* Unique Args */
email.setUniqueArgs({cow: 'chicken'}); // unique_args = {cow: 'chicken'}
email.addUniqueArgs({cat: 'dog'});     // unique_args = {cow: 'chicken', cat: 'dog'}
email.setUniqueArgs({dad: 'proud'});   // unique_args = {dad: 'proud'}

/* Category */
email.setCategory('tactics');        // category = ['tactics']
email.addCategory('advanced');       // category = ['tactics', 'advanced']
email.setCategory('snowball-fight'); // category = ['snowball-fight']

/* Filters */
// You can set a filter using an object literal
email.setFilterSetting({
  'footer': {
    'setting': {
      'enable': 1,
      'text/plain': 'You can haz footers!'
    }
  }
});

// Alternatively, you can add filter settings one at a time.
email.addFilterSetting('footer', 'enable', 1);
email.addFilterSetting('footer', 'text/html', '<strong>boo</strong>');

/* Attachments */

/*
 * You can add files directly from content in memory.
 *
 * It will try to guess the contentType based on the filename.
 */
email.addFile({
  filename: 'secret.txt',
  content:  new Buffer('You will never know....')
});

/*
 * You can add files directly from a url.
 *
 * It will try to guess the contentType based on the filename.
 */
email.addFile({
  filename: 'icon.jpg',
  url: 'http://i.imgur.com/2fDh8.jpg'
});

/*
 * You can add files from a path on the filesystem.
 *
 * It will try to grap the filename and contentType from the path.
 */
email.addFile({
  path: '../files/resume.txt'
});

Tests

  • Test written in the test/lib folder can be ran as-is and should all pass.
  • Test written in test/intergration need values in test/test.setup to be set in order to run. These require a valid SendGrid account. These tests send real emails, so be advised.

make test will run all tests.

You can run individual tests with mocha /path/to/test.test.js

For information on how to use Sendgrid see the SendGrid API Docs

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