O.0 Write Functions

You can write Firebase Functions in JavaScript or TypeScript. Functions can be called from your AIR app and you can send out parameters to them in JSON String format and functions can return to you the results in JSON String format.

The official Firebase docs have great information about what you can do with Functions and they will also teach you how to install and setup the Firebase Functions CLI on your computer. So, below I will only link to useful information on the official docs. But feel free to study the Google docs for more information about Functions. They also have a lot of great examples on how Functions should be written and deployed.

After you are ready with writting and deploying Functions, you may add the Functions ANE to your app and start calling them.

1. What can I do with Cloud Functions?
2. Begin with Functions, video tutorial
3. Installing the CLI and writting some Functions
4. Trigger background Functions:
   • Cloud Firestore Triggers
   • Realtime Database Triggers
   • Remote Config Triggers
   • Authentication triggers
   • Analytics Triggers
   • Crashlytics Triggers
   • Cloud Strorage Triggers
   • Cloud Pub/Sub Triggers
5. Monitor Functions Logs

A simple Function for you to test with your AIR app can be the following Function written in JavaScript. This Function expects to be called from a mobile app because it is functions.https.onCall. It accepts params like: {text:"some String"}. and finally returns a JSON object back to AIR.

exports.helloWorldForAIR = functions.https.onCall((data, context) => {
  // Message text passed from AdobeAIR.
  const text = data.text;
  
  // returning result.
  return {
    var1: 'value from server!',
    var2: 'value from AIR: ' + text
  };
});