# [Node.js Cloud Tasks sample for Google App Engine and Cloud Functions][tutorial-link]

This is the sample application for the
[Using Cloud Tasks to trigger Cloud Functions][tutorial-link] tutorial.

This tutorial shows how to create [Cloud Tasks][cloud-tasks] on
[Google App Engine Standard][gae-std] to trigger a [Cloud Function][cloud-func]
in order to send a postcard email.

## Application Architecture

* The App Engine application calls the Cloud Tasks API to add a scheduled task
to the queue.

* The queue processes tasks and sends requests to a Cloud Function.

* The Cloud Function calls the SendGrid API to send a postcard email.

[tutorial-link]: https://cloud.google.com/tasks/docs/tutorial-gcf
[cloud-tasks]: https://cloud.google.com/tasks/docs/
[gae-std]: https://cloud.google.com/appengine/docs/standard/nodejs/
[cloud-func]: https://cloud.google.com/functions/