Catch webhook node.js

Question

I'm trying to catch a PUT/webhook request that is being made by the Aftership API in node.js. A PUT request is made each time a push notification is needed to be made, I am using Parse to send the notifications but I need some of the data from the webhook.

The header of the webhook looks like Content-Type: application/json And contains this data:

ts - UTC unix timestamp that the event occurred

event - the name of the event (for tracking update, the value will be 'tracking_update')

msg - details about the message for which the event occurred, in the following format.

How would I go about getting the tracking number, slug and the value for token in the custom fields dictionary in node or js?

{
    "event": "tracking_update",
    "msg": {
        "id": "53aa94fc55ece21582000004",
        "tracking_number": "906587618687",
        "title": "906587618687",
        "origin_country_iso3": null,
        "destination_country_iso3": null,
        "shipment_package_count": 0,
        "active": false,
        "order_id": null,
        "order_id_path": null,
        "customer_name": null,
        "source": "web",
        "emails": [],
        "custom_fields": {},
        "tag": "Delivered",
        "tracked_count": 1,
        "expected_delivery": null,
        "signed_by": "D Johnson",
        "shipment_type": null,
        "tracking_account_number": null,
        "tracking_postal_code": "DA15BU",
        "tracking_ship_date": null,
        "created_at": "2014-06-25T09:23:08+00:00",
        "updated_at": "2014-06-25T09:23:08+00:00",
        "slug": "dx",
        "unique_token": "xk7LesjIgg",
        "checkpoints": [{
            "country_name": null,
            "country_iso3": null,
            "state": null,
            "city": null,
            "zip": null,
            "message": "Signed For by: D Johnson",
            "coordinates": [],
            "tag": "Delivered",
            "created_at": "2014-06-25T09:23:11+00:00",
            "checkpoint_time": "2014-05-02T16:24:38",
            "slug": "dx"
        }]
    },
    "ts": 1403688191
}

Answer 1

It can be done with Express framework, example:

var express = require('express'),
    bodyParser = require('body-parser'),
    app = express(),
    port = 3000;

app.use(bodyParser.json());

app.post('/', function (req, res) {
    var body = req.body;
    var trackingNumber = body.msg.tracking_number;
    var slug = body.msg.slug;
    var token = body.msg.unique_token;

    console.log(trackingNumber, slug, token);

    res.json({
        message: 'ok got it!'
    });
});

var server = app.listen(port, function () {

    var host = server.address().address
    var port = server.address().port

    console.log('Example app listening at http://%s:%s', host, port)

});

Here is the GIT repository, just clone it and do npm install and then npm start. The server will run on port 3000 :D

Note: I saw in Aftership Webhook's documentation, it said they will request POST HTTP method, not PUT so I create an example of post request. Just replace it with put if you want it to catch put request.