var sendgrid = require('tisendgrid')('SENDGRID-USERNAME', 'SENDGRID-PASSOWORD');
sendgrid.send({
	to: 'john@email.com',
	from: 'doe@email.com',
	subject: 'Hello!',
	text: 'Hello again!'
}, function (e) {
	if (e) {
		console.log(e); // Email wasn't sent
	}
});

var sendgrid = require('tisendgrid')('SENDGRID-USERNAME', 'SENDGRID-PASSOWORD');
var email = sendgrid.Email({to: ['john@email', 'doe@email.com']});
var otherEmail = sendgrid.Email();

email.addTo('jose@email.com');
email.addTo(['jose2@email.com', 'happy@email.com']);

email.addToName('Jose');
email.addToName(['Jose 2', 'Happy']);

email.setFrom('joseph@email.com');

email.setFromName('Joseph');

email.setSubject('subject');

email.setText('this text');

email.setHTML('<b>that html</b>');

email.addBcc('jose@email.com');
email.addBcc(['jose2@email.com', 'happy@email.com']);

email.setReplyTo('email@email.com');

email.setDate(new Date().toUTCString());

// Filename parameter is optional
email.addFile('./filepath/file', 'filename');
email.addFile(file); // Titanium.Filesystem.File

email.setHeader('some header');

email.setAPIHeader('{sub:{key:value}}');

email.addSubstitution('key', 'value')

email.addSection('section', 'value')

email.addCategory('category')

email.addUniqueArg('key', 'value')

email.addFilter('filter', 'setting', 'value')