MQTT and Firebase Connection with App Inventor

[Simon_Taft]

Hi there,

I'm new to App Inventor and I have as project in my Bachelor Thesis to connect App Inventor with a Firebase project and with MQTT.
I found pretty much stuff regarding App Inventor with Firebase and even some with MQTT, but for some reasons the projects I found are not working.
To clearify in advance, the experimental Firebase tool of App Inventor itself is no option, because it may be disabled in the nearer future and my BA project has to work for many years, so I need to do that with a html implementation.
Does anyone of you have a working example using App Inventor with Firebase or with MQTT and would share this project with me, please?
I won't copy that, but it's hard to fullfill the project requirements without a working example to work from with a similar syntax.

Thanks a lot in advance!

Greeting,
Simon

[ABG]

Have you checked

FAQ Section: Firebase

Introductory FireBase Pending Failure Warning - JIS Brief Intro to Cloud Data and the FireBase Component - HAL FireBase component help Tutorials Atomic queue and delete - @TimAI2 Simple bulletin board - @TIMAI2 Firebase Chat sample - Amerikashi Firebase bus route tutorial - Romin Irani Firebase Spanish tutorial - kio4 Firebase WhatsAppInventorMIT chat project - Montes FireBase DataChanged Detection from IOT updated DB - @Juan_Antonio Pitfalls Unable to open app with firebase on non-…

and

FAQ Section: Web Services Examples

AudD® Music Recognition API - Peter Bar Code File Generation - Amerkashi Check Web Connection - Sivagiri, Imagnity, Taifun Check Web Connection - vknow360 Collect Data via DeviceHub.net API - Timothy Woo cURL to blocks automatic generator - Jerin_Jacob Display a Web Page with a button click Facebook Login Extension - mirxtrem_apps Firebase: with the Web Component - Secure Rules - TimAI2 Google Analytics Google Apps Script via V8-Engine Extension - cttricks Google Books API- JSOn - Saj…

?

[ABG]

@Simon_Taft

BA project has to work for many years, so I need to do that with a html implementation.

Also consider your own CloudDB server as an alternative to Firebase:

FAQ Section: CloudDB

CloudDB Blocks Help Is the MIT CloudDB Server Down? - @jis, @ABG CloudDB Pizza Party remix - TimAI2 HOWTO: Setup a Local Redis Server for CloudDB - TimAI2 Redislabs account config in AI2 - TimAI2 HOWTO Setup Redis with SSL for CloudDB with AI2

[Simon_Taft]

Thanks for your answers, @ABG
I'll check those links.
But for my purpose it would also be great if someone would share it's first hand experience to discuss my mistakes on the projects with.

[Simon_Taft]

@ABG:
All of those examples use the FirebaseDB from App Inventor which may not work in the future, that's why I can't use it for my Bachelor Thesis.
I need to include the functionality into a html document and call the function in the html file via App Inventor.
Do you have any recent solution for that case?

[Juan_Antonio]

A nice project would be to buy a Raspberry Pi and install Mosquitto (Broker MQTT)

MQTT For App Inventor

[Simon_Taft]

Hi Juan,
I found some projects with Raspberry Pi connection, but unfortunally this is not my task
I really need to do it the way I told before, but I didn't find a solution yet.

[TIMAI2]

@Simon_Taft

All of those examples use the FirebaseDB from App Inventor which may not work in the future

Then consider this:

Firebase Database and Storage: with the Web Component - Secure Rules

[fb] This is one of those, could it be done.... did I need to use the built-in firebase component, or the extensions available, in order to use Firebase database and storage, and operate secure rules. Well after some research and testing, it turns out that it could be done. Find out how: Firebase with a Web Component . . . My thanks @ChrisWard for proof reading and suggestions [EDIT - Now updated to include the new PATCH feature of the web component]

or this:

Firebase with Web Component

A couple of somewhat terse guides to using the web component and webviewer to manipulate firebase realtime database, manage authenticated users, and use firebase storage. I have also linked in a previous guide I did for securing firebase rules, which also had a few other bits and pieces for getting tag lists and data changed. Happy to answer questions etc. The first two make no use of the built in Firebase component or any Firebase extensions Firebase Authentication with Web component and HTML …

[Simon_Taft]

Thanks @TIMAI2, this is exactly what I've been looking for regarding Firebase
I'll try it out tomorrow.
Do you also have working examples with MQTT?

[TIMAI2]

This seems to be a good / free extension that provides MQTT access with App Inventor

https://ullisroboterseite.de/android-AI2-PahoMQTT.html