Note: This was recently updated to run directly on node.js 0.4.0 so there are no other dependencies. If you were using this before, it should upgrade perfectly fine without any change.

Send emails with the greatest of ease! Now your node.js application can send emails through Postmark using their HTTP API. To send any email, including attachments, all you need to do is this:

    var postmark = require("postmark")("YOURAPIKEY");
    postmark.send({
        "From": "[email protected]", 
        "To": "[email protected]", 
        "Subject": "Test", 
        "TextBody": "Test Message"
    });

Replace YOURAPIKEY with the API key provided by Postmark and you are good to go! Your message must be provided in the format specified in the Postmark API and will be verified. If you provide the object in a manner not as specified (including case sensitivity), an exception will be thrown. Send takes a callback as the second parameter that indicates success or failure, following the normal node.js callback pattern callback(error, result), if there is an issue with the submission an error object will be returned as the first argument.

To send attachments with the email, use the following format:

    var postmark = require("postmark")("YOURAPIKEY");
    postmark.send({
        "From": "[email protected]", 
        "To": "[email protected]", 
        "Subject": "Test", 
        "TextBody": "Test Message",
        "Attachments": [{
          "Content": File.readFileSync("./unicorns.jpg").toString('base64'),
          "Name": "PrettyUnicorn.jpg",
          "ContentType": "image/jpeg"
        }]
    }, function(error, success) {
        if(error) {
            console.error("Unable to send via postmark: " + error.message);
            return;
        }
        console.info("Sent to postmark for delivery")
    });

The Postmark API provides functionality for sending batches of emails with a single command, rather than issuing separate API calls for each message. You can access this feature by using postmark.batch(), which behaves similarly to postmark.send() except that the first parameter is an array of messages formatted as above.

For example:

var postmark = require("postmark")("YOURAPIKEY");

var messages = [
    {
        "From": "[email protected]",
        "To": "[email protected]",
        "Subject": "Message #1",
        "TextBody": "This is email number 1."
    },
    {
        "From": "[email protected]",
        "To": "[email protected]",
        "Subject": "Message #2",
        "TextBody": "This is email number 2."
    }
];

postmark.batch(messages, function (error, success) {
    if (error) {
        console.error("Unable to send via postmark: " + error.message);
        return;
    }
    console.info("Messages sent to postmark");
});

The Postmark API will return an array of statuses, one for each message sent. You can access the data about individual messages in either error or success. For further details, please see the Postmark Batch API.

Enjoy sending.

  npm install postmark

• Postmark