Questions tagged [firebase]

Firebase is a real-time application platform, optimized for building collaborative, asynchronous applications with mostly client-side code.

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8 views

Firebase object convertion to hashmap exception

I am making an online chess with firebase realtime. I have a gameConnector class to connect the players. To connect, I change the value of a variable and the other ...
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19 views

Advice converting an onCreate firebase cloud function trigger with FCM Messaging to support async/await and database reads

I initially had a simple firebase cloud function that sent out a push notification to a topic when a new message child was created in my real-time database. But I wanted to add message filtering where ...
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Angular observables piping

I wanted to check and see if this was as efficient as can be. The goal is to get a user's data from a group of documents that contains references to users in Firestore. ngOnInit ...
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31 views

JavaScript async/await function performance improvement

I have a simple async/await function which gets data from a firebase endpoint. I would like to know if there is any room for improvement performance wise. ...
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1answer
83 views

Private desktop and mobile WebSocket connections with Node.js

Background info To learn a new branch of my dev career, I've started a new project in my spare time (I've never used WebSockets before and I also want to learn more about common authentication flows). ...
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16 views

Validating firebase insert

I have been learning firebase with react js lately and I have stumbled upon a situation where I think my code is somewhat not okay. ...
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1answer
56 views

Swift iOS rewrite a function that use Firebase database without updating a global variable

I'm learning swift programming and i built a music trivia app for iOS that use firebase real time database. I have a function that before the game start get the number of record for each category of ...
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50 views

Firestore async function with array and object transform for jquery datatables - improve efficiency and maintainability

How could this Firestore function be improved, please? This is a question to help us learn to write better code. So by improved, I don't mean made shorter... I mean made clearer as to what it is doing,...
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1answer
77 views

Search filter for words in dart

I need to add search filters for firebase So that I can get search result easily and precisely I was altering the code from hereThis Medium Post I would like to optimize this code. ...
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1answer
325 views

@angular/fire Firestore cached service

I've written a service for firebase that handles all my Firestore calls. The goal is to only read the database once on app init( load() function) and then keep a copy of the database inside local ...
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1answer
47 views

ZooRater mobile app. This code is responsible for displaying and handling zoo dashboard. Need general advice

Context: gitlab link I know, it's a lot of code but I need your help ladies and gentleman. I'm not sure if I can ask for code review for the whole project so I just ask to review this activity. I ...
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1answer
994 views

Handling google authentication with firebase in nextjs web app

Background info I have just started using/ learning how to use Next.js and developed a basic application which allows users to view several pages, some of which are authentication protected. Users ...
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1answer
141 views

Cloud Function: Deleting from both Firestorage and Firestore in a kind of “batch”

I've written code that deletes a "post" the user has sent with my Android app. A "post" is made of an image (stored in Firestorage) named A, of a Firestore document named B which is the user UID (this ...
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147 views

Fulfillment webhook with Dialogflow to operate on a Firestore database

I'm currently calling a fulfillment webhook with dialogflow in my node backend, performing crud operations on a firestore db. Is there a better, cleaner way to ...
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1answer
66 views

Managing Angular subscriptions

There are different methods to get data from server in Angular application: Get Observable from the service and subscribe to it at component Create Subject at the service and subscribe to the Subject ...
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62 views

Google Play billing + Firebase functions: Creating a one-time product, server-side

My Android app must request my Cloud Functions server to create in-app products at runtime ; then, the server responds with the created one-time product. I've written the server Cloud Function that ...
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13 views

Functions to handle async calls and also handle loading and error status in React component

I've got the following component structure: Component hierarchy: <AdminBlogPostContainer> <AdminBlogPostPage> <BlogPostForm> ...
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179 views

Angular polling and plotting component using Firebase

I could use some help refactoring my component and service. I have a lot of nested logic and wasn't sure what I could do to improve this. I'm new to Angular 7 and their piping syntax. I suspect this ...
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23 views

Simplifying a firestore querying function

I have this function where it queries through the database and returns a random user if the requirement is met if not then try it again. It works and all but I feel like the code could be better/...
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71 views

Firebase login/registration process for a dating app

I am developing another bigger project, I want to try a simple DatingApp and currently I try to develop a Login and Registration Form. There is no special register / login button, the code will later ...
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1answer
900 views

Destroy Singleton pattern in kotlin

I am practicing Singleton pattern in kotlin. It is a quiz app which has question tile with four options and one correctIndex. McqOldActivity.classs ...
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2answers
112 views

NoSQL data model design for players in a game

I am modelling a game which can be single (player1 vs player2) or double (pair 1 vs pair 2, where each pair contains 2 players) and each game has a score. The game is group and date based e.g. Group A ...
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1answer
471 views

Updating text with JavaScript and Firebase [closed]

My problem is this causes more lag as time goes on. I use this commonly to chat with my friends, and I need it the site to update in real-time whenever a message gets edited/deleted/added. Any ...
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1answer
96 views

How can this swift, firebase image fetching, function be made more concise?

I am trying to fetch a group of images within a place in Firebase database ref. I then loop through each image adding it to an array which is then supposed to be added to a tableview cell. I was ...
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85 views

Correct Callback for each item

I have added a correct question callback for different types of questions like: radio, checkbox and descriptive.. QuestionListActivity.class (it shows the list of questions to attempt) ...
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2answers
66 views

Loading items for an eCommerce site

I am attempting to make an eCommerce site from scratch. Right now I have the following code that gets all the items from a Firebase Firestore database and then adds HTML into an items div element ...
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32 views

Firebase Plotter for Ionic

I've written this plotter for Ionic in Typescript to plot data that I push to a Firebase list. I'm new to Typescript so I'm interested in all kinds of feedback, especially on the style. First I've ...
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1answer
109 views

Swift UITableViewCell class to show cameras, ratings for a car wash and other information

I have an UITableViewCell class that written in Swift. And it seems to me that I did it the wrong way. It works fine, but I want improve the code or refactor it somehow to make it look better. Any ...
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502 views

Firebase server-side auth with persistent websocket connection

I've been diving a bit into JavaScript for the first time in forever, generally trying things out, and getting acquainted. I gave my toy project the following requirements: single-page react app ...
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2k views

Authenticate ASP.NET Web Api 2 using OWIN and Firebase

I'm about to go live with an app, and would, therefore, appreciate a review of my firebase authentication setup. I haven't been able to find many resources describing how to perform such ...
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2answers
51 views

Parameter guards for Firebase calls

I have code to ensure parameters existence all over the place. Is there a better way to do it? So that I do not have so many repeated codes inside different functions ...
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2answers
109 views

Controlling Finances with Web Development

Purpose First, let me explain the title: I previously had managed my finances like an old fashioned company might, and it worked wonders for making financial decisions (at least for me). I wanted my ...
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1answer
823 views

Maintainable networking layer architecture

There are so many different solutions and examples on how to build a proper networking layer, but every app has different constraints, and design decisions are made based off trade-offs, leaving me ...
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1answer
642 views

Vue + Vuex + Firebase serverless realtime chat

I am "discovering" Firebase and I'm trying create simple chat with Vue, Vuex and Firebase. But because I'm just starting out with Vue, I need code review or advices from more experienced programmers. ...
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2answers
79 views

Uploading photos of various sizes

In my solution I've implemented transaction-like methods of uploading posts media. For example I'm adding new post with photo. I want to have 700x700, 200x200, 70x70, 10x10 px sizes in my storage and ...
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64 views

Make methods shorter when parsing Firebase data

I have a simple parsing method from firebase. How i can do it smaller?The fact is that after the data is changed I will need to update my View so that the code can be added, which also does not sound ...
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1answer
371 views

Simple networking layer in Swift using Strategy design pattern

Does the following code demonstrate proper use of Strategy design pattern for a simple networking layer in swift 3? Some code smells I'm unsure about: violates Single responsibiility principle. ...
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1answer
321 views

Fetch nearby chat users using Firebase and nested completion handlers

I have a method that calls three functions that each make a request to Firebase and pass back data in a completion handler. Once the data from 2 of the completion handlers is sent back, I call another ...
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2answers
610 views

Angular Guards - Firebase loggedInAndVerified

I have an app that I want to limit to both logged in and verified users. I was able to make two separate guards (logged-in.guard.ts and ...
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68 views

Chrome Extension Code: LOL Link Sharer

I made a hacky version of a chrome extension to compliment a weekly literary/arts publication. The extension helps me curate links from my publication's readers since there's only so much I can curate ...
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1answer
362 views

Populating a UITableView with staff members using Firebase data

The end user will be able to see a list of staff that works at a church. The staff consists of 5 individuals with 5 different position titles (Minister, Pastor, etc.). This data is pulled from ...
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1answer
106 views

HackerNews news fetcher

The following code is part of a big application. I am new to Go, and appreciate feedback on the best practices and improvements. Please consider styling and comments as well. Every 30 minutes, this ...
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85 views

Collecting a user's Stripe information

I am new to both asynchronous programming and Android development. I am allowing the user to sign in with either their email/password or their Google account. Upon successfully signing in, the user's ...
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2k views

Populate country-province-city dropdowns from Firebase query

I'm new to Firebase and am a recovering SQL developer, so I haven't quite wrapped my mind around all aspects of firebase querying. I have an app that has basic functionality in place, but some aspects ...
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51 views

Authenticating voting

My aim is to prevent authenticated users from voting more than once. I am using angularfire2. The code gives me the expected behavior and I was wondering the better way of doing this. The ...
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0answers
1k views

Firebase many to many relationship structure

I'm trying to create a logical and scalable many to many relationship data structure in Firebase. A user can authenticate with Facebook/Google, upload 3 photos, and a video. Users can also "star" ...
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1answer
177 views

Reduce amount of calls to database for authentication

I'm currently having a bit of code, which I just know can be improved a lot. I am just blind to it. All of my code looks quite neat to me, except these parts... The login + authentication process is ...
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2k views

Function to conect to Firebase Rest API via Access VBA

This is the application for small school, which will store students' info in Firebase and also retrieve data from Firebase. I am using JSON Parser to parse the data and save the same in Access tables. ...
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0answers
2k views

Handling Firebase's asynchronous calls Android

I have written a helper class to manage callbacks from Firebase's asynchronous calls. Can this be implemented in a better way? ...
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0answers
4k views

React Native - Rendering different scenes based on application state

I am using react-native-router-flux to organize the routes for my application. Using Firebase, I am able to call ...