Using a Realtime Database in Python (Kivy) using Firebase 

That's cool to hear! If your app is finished, feel free to post a link to the App Store page. I always like to promote and look at what other developers have created with Kivy. EDIT: Yes, when we work with large data sets, It would be much smarter to query the database for a specific data point instead of downloading it all then parsing through it in Python. Having the database do the work will cut down on the bytes downloaded. Another way you can save on data is by specifying the URL too when you query the database. Although, we do get 10GBs of reading and writing, which is more than enough for my projects. If you plan on making having many users with a lot of data, querying the database is worth doing

Hey Erik, I watch your tutorial videos. They're great :D

thanks a lot, it's help me out of my issue

check my channel you will find that video

its a little but..if you are on Linux, you can use buildozer

You're welcome! I use PyCharm Community edition. There is a way to have .kv files show the different colors but I never had success setting that up.

I use Atom and they recognize kv files, but the problem is the need to setup new virtual environment for library through cmd and run the py file from there

I'd see if you have the proper permissions, and your buIldozer looks as it should, etc.

Hello. This is a general error not from my tutorial. The error is saying that you cannot import "App". In your code, you might have written "import App" which you cannot do. You should remove "import App"

@@PetarLuketina Thanks a Lot!! :-)

This would work in Python 3. You could test if my code is the problem by removing the code then compiling the file. If it works, then it’s an issue with the requests library. But I think your issue is a general one where you cannot compile it properly at all, to which I’d say that I cannot help you since it’s been over 3 years since I compiled my last app. I would reach out to the kivy community.

@@PetarLuketina Hello Dear! thank you for your quick response but i just figured that out by set up the requirements in buildozer like that requirements = python3,kivy,kivymd,pillow,requests,openssl,android,futures,idna, urllib3, chardet, certifi

If it helps, you can send me your code snippet in a private message and we can fix it together.

Hey Adam. I'll check the version soon, but in the mean time, which object is throwing the error?

Yes, I should have said so in the beginning instead of the end! But it's better to write the code out and focus on what's being written than copy and pasting. It leads to better understanding of the code, at least for myself 👍

@@PetarLuketina Yes, you absolutely right - without thoughtful coding there is no progress in programming. By the way, if someone is watching this one with same issue as mine - at first, I missed 'android' in requirements, but when I added it to my .spec files requirements my buildozer just started throwing some errors. Solution was to just delete buildozer, downgrade cyton and install buildozer from scratch. Once more thank you Petar for your video and your reply - It was really a bless for me to find information I needed in such easy example. I know that I could learnd it probably by storming Firebase knowledge base, but I just wanted to focus more on my app and its solutions and ideas rather than spreading my time and attention on every single aspect.

I'm sure you can for a regular script but some people say they had trouble compiling.

@@PetarLuketina Yeah, I faced same problem. I just wanted to make sure. I think your way is the only way it works...Thanks...

Hello. When did you get this error? Which line of code triggered the error?

Hey, unfortunately, this is a Kivy question, and I stopped coding in Kivy. I don't not even have a coding environment for it. Kindly try Stackoverflow.

I am not sure , but one way you can do that is by storing the json value from firebase in a string variable [ str ], and then using object property in your python function , you can do your_label_id.text = str

@@yashmehta7196 thank you

Hey, I *think* I had the same error because when I searched for the error, my browser showed that I previously clicked on it. Does this answer the question: askubuntu.com/questions/930460/aidl-not-found-please-install-it . You probably saw that, right? It's been so long since I did a deployment, sorry! I know the deployment is the worst part of the coding process... You said that you see the error when you try something similar, meaning that you can do a simple "Hello World" app without a problem? It looks like it would be a requirement issue, or maybe something with your buildozer.spec file. Did you copy my buildozer file from GitHub?

@@PetarLuketina I just found the solution. It's because I'm using raspberry pi to do the buildozer (I don't have any other Linux OS computers), I need to download Aidl for Raspbian and then replace it manually. I guess I need to install Linux on my computers soon haha.

Also, keep up the good work here, your tutorial is very nice and useful!

Just the top of my head, I'd get a list of all the files then perform a for-loop on each of the files and delete them. You can skip over the one you want to exclude. Does that make sense?

I using firebase_admin

I don't know specifically about Pyrebase, but Android should have a library to send posts to the Firebase backend.

Hey Klannahar, I appreciate the constrictive criticism! I learned from this video and adjusted my microphone.

You will need to use Patch, I believe. Which functions are you using?

@@PetarLuketina yeah I'm using patch but it replaces the previous one but I need to add that to the existing one

​@@dhakshnamoorthy8673 Okay, I understand what you need to do. You must add the name of the parent key to the firebase URL. For example, if your URL is "example.firebaseio.com/.json", you add the key after the ".com/" to get "example.firebaseio.com/parent_key/.json". Then you will use the patch function and it will work.

@@PetarLuketina thanks a lot u saved me

There are differences in how you compile the apps but I am unsure of everything you have to do because it has been over a year since I worked on mobile applications. I would ask the community or look at what the documentation says.

@@PetarLuketina ok. just tell me one thing. that ios which you created and made tutorial about that, did you compile that app both for ios and android? or only for ios?

@@mdAshikuzzamanAkash the tutorial that I showed, I complied it on Android. Unfortunately, I never compiled any apps in iOS.

Yes, if you specify all the write permissions and requirements for the app.

I know that Python 2 is fully deprecated. I am not sure if buildozer also deprecated the use of Python 2. When I was making apps, there was a way to use Python 3 but it required some extra steps. I am unsure if they standardized Python 3 more. That's something you'll want to ask the community.

I know this reply is kind of late, you cannot use buildozer to create apk package on windows. Kivy requires buildozer to build the apk , you can do that by installing a Linux VM or OSX

You can use Google Colab to package your kivy app with buildozer.

Yes, it should. The requests library is for Python and can go on any Python environment

You'll be able to use the same URL. You can post to that URL from any environment, like a command line cURL post or in a Python IDE using the requests library, etc.

@@PetarLuketina great help

Hey Py Suhayb, thank you for the encouragement! I've actually taken a break from Kivy. I'm starting to learn Django, but I can make a tutorial for Kivy if you or the community needs. Just let me know what trouble you're having.

Petar Luketina Thanks mate i have nothing in trouble with i just if can make tutorial for more resource

@@pysuhayb15 Ah, I understand. 👍

Yeah, you should be able to; however, Apple has many guidelines/restrictions that make it a longer process to publish. They also look at your app to see if it's high quality and allowed to be in their store. With the Kivy compiler, there are also a few parameters that need to be specified which are different from Android. I never published my apps to iOS for these reasons.

What libraries are you importing?

You can also try to remove parts of your code, the compile to see where the issue actually is.

@@PetarLuketina from kivy.app import App from kivy.uix.label import Label from kivy.uix.gridlayout import GridLayout from kivy.uix.textinput import TextInput from kivy.uix.button import Button from firebase import firebase Only these stuffs help me

@@dhakshnamoorthy8673 so in my video, I never import firebase. I use the requests library to speak with firebase. Have you followed the video from start to finish, or considered using the requests library? What I believe is happening is the firebase library is using dependencies that you do not have.

@@PetarLuketina thank you so much Thanks a lot you saved me

As long as it's in your backend it should be fine. I know there's extra precaution one could take to secure a variable's value which you could do if you're working with a team.

@@PetarLuketina In Android app if I use ..then any one can get that link by decompile my app ..

You're right. I was thinking of a backend for a webserver since I haven't worked on apps in a long time. I would try and see how others get around the fact that someone could get your Firebase credentials if they decompiled the code. Perhaps an Android or Kivy forum. I'm sorry that I couldn't be more help!

@@PetarLuketina okk..But @Erik Sandberg developed android app using firebase ...I don't know how he applied protection ...I want to develop some apps using firebase ...but I am thinking about security

It looks like he wasn't tagged in the comment above. I'd reach out to him via his channel or his email because he's done quite a few projects on mobile as you already know.

Hey Jesse. Sorry for the late response. I didn't receive a notification from your comment. I tried to look at the pastebin but it was removed. Were you about to figure out the issue?

​@@PetarLuketina I've solved it! The problem was that I used the default bulldozer.spec and imported firebase (from firebase import firebase) but when I use requests and your bulldozer.spec everything works perfectly. thnx

Hey. You already got the library via conda or pip then added it to the project interpreter, right? Please send a screenshot via pastebin so I can take a look.

pastebin.com/fKKTCtjv

@@AdityaSingh-in9lr Are you using the example code from the tutorial or have it in your own project? Please use pasteboard for a complete screenshot of the code.