Get notifications from every event supported by IFTTT.

First, create the stream you'd like to use for IFTTT notifications, and subscribe all interested parties to this stream.

{{ external_api_uri_subdomain }}/v1/external/ifttt?api_key=abcdefgh&stream=ifttt

Next, create an IFTTT recipe, picking the service you'd like to receive notifications from as this, and Maker as that.

Choose the Make a web request action, and configure it as follows:

• URL is the url we created above
• method is POST
• Content Type is application/json

Finally, configure the request body. You need to construct a JSON object with two parameters: content and subject.
Example: {"content": "message content", "subject": "message subject"}

You will most likely want to specify some IFTTT "Ingredients" (click the beaker to see the available options) to customize the subject and content of your messages; the below screenshot uses ingredients available if this is IFTTT's incoming email service.

Example configuration:

You're done! Example message: