Firebase

[dBorzack]

Hello,

I'm using experimental Firebase with default URL, with discrete success too. Now I'm intrested to use a customized firebase url. Someone know how do it?

Thanks

[Taifun]

copied from here https://amerkashi.wordpress.com/2016/03/06/firebasechat/

By default, it uses the shared default Firebase account. You can change this behaviour though using the FirebaseDB designer properties. Just create a FirebaseDB account for yourself and change the designer property to point to your own account.

Taifun

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Trying to push the limits of App Inventor! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun. 

[dBorzack]

Yes I read it, but the question is how do it?

[Abraham Getzler]

Start here and hit "create project".

https://console.firebase.google.com/?pli=1

ABG

[dBorzack]

Thanks, I did this, so I've a firebase URL. Now I don't know how take Firebase Token.

[Abraham Getzler]

It's been a while since I did mine, and Firebase changed their web site.

I think the attached is the route thru the jungle ...

Get into your project (app?)

Start at AUTH on the left, then hit Web Setup in the upper right.

A popup will appear with several text values you can copy.

ABG

[dBorzack]

Thanks Abraham,

my doubt is that the Defaul firebase token on ai2 is this

eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHAiOjE2NzQwNDkxODY5LCJ2IjowLCJkIjp7InVpZCI6ImU2NzRlNDNlLWRkMGMtNDdhMC05ZDUyLTQ1MTllMmQ2YjVjNCIsInByb2plY3QiOiIiLCJkZXZlbG9wZXIiOiJib3J6YWNrMUBnbWFpbDpjb20ifSwiaWF0IjoxNDY2OTU5MDY5fQ.CjEcgLqqHIcBcL8EGW18lXFvAOE0BVoWbaZj8Soygjg

when I try to create one customized with firebase console (also following your suggest) there isn't nothing similar at this, only API KEY, databaseURL, and so on.

So I don't know if I'm doing the right thing.

[Abraham Getzler]

Both the AI2 Token and the FireBaseDB API-Key are 40 characters (or so, I may be off by 1 or 2).

I'll bet they are the same thing.

Try it.

ABG

[Abraham Getzler]

I think the Token you got by default was so much longer because it was meant to work with the default AI2 shared Firebase database instance, and needed the extra length to distinguish authors and projects within the same data base (URL).

My leftover token in my old project was only 40 characters, to go with the URL of my own free instance.

It worked for me in my experiments a few months ago.

I see disclaimers in AI2 docs of March 2016 warning that private data base support doesn't exist yet.

I haven't tried it recently, though it worked for me a while ago.

The easiest test is to paste in your API-Key and URL, insert a few items theu AI2, and inspect the data base thru the firebase console database section.

ABG

[dBorzack]

Thanks,

I'll try to follow your suggest with api key.

[dBorzack]

Hi  Abraham, I've tried to follow your suggestion without success.

I think the protocol is more complicate now.

[Abraham Getzler]

I tried a little test Firebase app on the stock emulator, and got a nasty surprise (see attached.)

I will try a re-download and install, to see if that helps.

So far, the emulator file name and size don't look different than my last download....

ABG

[Abraham Getzler]

It looks like the AI2 emulator won't support Firebase.

I started a thread https://groups.google.com/d/msg/mitappinventortest/d8FQMu8MyKY/nLkSBiBxBQAJ

on that.

Maybe Genymotion will help.

(See my FAQ https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/mitappinventortest/2cd6Uz__xA0/cPQSiZpcDAAJ

)

ABG

[dBorzack]

Hello Abraham ,

I've tried also on a phone, but doesn't work the same. Maybe I wrong something, do you have more detail to me about the procedure used in the past?

Thanks 

[Abraham Getzler]

I finally got FirebaseDB working in an emulator, but I had to use a recent Genymotion emulator (free).

I attached screen shots using a test app (.aia included) and my personal trash instance.

Things I had to do ...

Install GenyMotion free

Download and start a virtual device from Genymotion

download the Companion .apk file from the AI2 USB Setup linkat http://appinventor.mit.edu/explore/ai2/setup-device-usb.html

 link: http://ai2.appinventor.mit.edu/companions/MITAI2Companion.apk

Drag the .apk file into the running Genymotion device Window to install it.

(It should start running by itself)

Start aistarter.exe on your pc to watch for connection

Set up your firebase db intance , go into its console, and go to auth tab / web setup

Copy these two items into your Ai2 Designer firebasedb component attributes:

  (turn off the default flag first and clear the token and URL fields )

  apikey goes into Firebase Token

  databseURL goes into FirebaseURL

  leave the projectBucket same as the AI2 app name to allow reuse of the storage

From Ai2, Connect-->USB 

The app should start on the emulator.

ABG

  

[dBorzack]

I don't know why but I've this kind of error "permission denied"

[dBorzack]

Finally works, I've changed rules too, with this snippet:

// These rules give anyone, even people who are not users of your app,
// read and write access to your database
{
  "rules": {
    ".read": true,
    ".write": true
  }
}

[dBorzack]

this is database with a pubblic access, with API Key. Is there a way to do with a private account too?