Does anyone know how to tell Node.js´ module nodemailer to use an external HTML file (with links to stylesheets) as email content?
I am able to type in HTML tags as email content but I prefer loading complete HTML files. I´m using nodemailer 1.3.0.
Unfortunately I can´t find any example covering this issue for the actual nodemailer version.
Ideas?
It is a node.js package that allows you to inline your css, so that you can then use nodemailer to send the complete HTML email.
It can also prepend / update links within your email so that they are not relative links any more. (ie. you could change a link like "coverage/local.html" to "\myhostname\afolder\coverage\local.html"
Here's a rough and ready script that I knocked up to send the output of Istanbul code coverage via email.
/*
* Use this script to send Istanbul code coverage results via email.
*
* NPM REQUIREMENTS:
* The following packages need to be installed:
* - npm install styliner
* - npm install nodemailer
* - npm install nodemailer-smtp-transport
*
* Usage: node sendNodeJSCoverageEmail.js <origfile> <basedir> <receipient>
*
* <origfile> : This is the original Istanbul index.html from the code coverage report
* <basedir> : TeamCity directory where the index.html resides. Must contain "DevTC" folder (see below)
* <recipient> : Email address to send the results to.
*
* What it does:
* Istanbul creates an html report for code coverage. It is a complete web page, and has an index.html,
* some CSS style sheets, and relative links to other coverage.
*
* This script takes the index.html, reads the referenced .css files, and inlines the css, so that external
* files are no longer needed. (this is because you can't send multiple files for an html email).
* Also, the relative links are prepended with the UNC path to the files: this means that the recipients
* can click on the links in the html email and they will work.
*
* NOTE: it assumes the TeamCity folder where the coverage reports reside is shared, and also contains the
* folder DevTC (it looks for this folder to do the substitution). All build machines have this
* folder structure.
*
*/
var nodemailer = require('nodemailer');
var os = require("os");
var hostname = os.hostname();
var originalFile = process.argv[2].toString();
var baseDir = process.argv[3].toString();
var recipient = process.argv[4].toString();
var Styliner = require('styliner');
var uncDrive = '\\\\' + hostname + '\\DevTC';
var uncPath = baseDir.replace(/.*DevTC/gi, uncDrive);
// prependUNCPath is a function called by Styliner for every
// link that is found in the HTML.
function prependUNCPath(path, type) {
return uncPath + path;
}
// See http://styliner.slaks.net/#about for Styliner options
var options = { url : prependUNCPath, noCSS : true };
var styliner = new Styliner(baseDir, options);
function sendEmail(source) {
var nodemailer = require('nodemailer');
var smtpTransport = require('nodemailer-smtp-transport');
// create reusable transporter object using SMTP transport
var transport = nodemailer.createTransport(smtpTransport({
host: 'your-smtp-server.local', // FIXME: Change this!
port: 25,
}));
// setup e-mail data with unicode symbols
var mailOptions = {
from: 'TeamCity <teamcity@company.com>', // sender address
to: recipient, // list of receivers
subject: 'Code Coverage results', // Subject line
// text: 'Hello world ?', // plaintext body, not used
html: source // html body
};
// send mail with defined transport object
transport.sendMail(mailOptions, function (error, info) {
if (error) {
console.log(error);
} else {
console.log('Message sent: ' + info.response);
}
});
}
var fs = require('fs')
// Do the reading of the original index.html, and kick everything off.
fs.readFile(originalFile, 'utf8', function (err, data) {
if (err) {
return console.log(err);
}
styliner.processHTML(data)
.then(function (source)
{
sendEmail(source);
fs.writeFile("newindex.html", source, function (err) {
if (err) {
return console.log(err);
}
console.log("The file was saved!");
});
}
);
});
You should use inline css, not a separate file since HTML rendering of head elements and such are defined by provider not by nodemailer.
I'd recomend mailChim's css inliner tool, it's pretty handy, just set the
html: '<div style="font - family: verdana; max-width:500px; margin-left">' + 'more string and string'
I would suggest using the fs module's readFile function to read in your HTML file, then send it in an email inside the callback.
Tutorial on readFile: http://docs.nodejitsu.com/articles/file-system/how-to-read-files-in-nodejs
