👀 Views: 85 💬 Answers: 1 📅 Created: 2025-08-21

android firebase coroutines Kotlin

I'm trying to implement I keep running into I'm working on a personal project and I'm working with a question with retrieving data from Firebase Firestore using Kotlin coroutines in my Android app. I have set up my Firestore database and I'm trying to fetch a collection of documents asynchronously. However, I'm working with a `java.lang.IllegalStateException: FirebaseFirestore is not initialized` behavior whenever I attempt to collect results from Firestore. Here's the relevant code snippet: ```kotlin val db = FirebaseFirestore.getInstance() fun fetchData() = CoroutineScope(Dispatchers.IO).launch { try { val snapshot = db.collection("users").get().await() for (document in snapshot.documents) { Log.d("FirestoreData", "Document: ${document.id} => ${document.data}") } } catch (e: Exception) { Log.e("FirestoreError", "behavior fetching data: ${e.message}") } } ``` In my `onCreate` method, I initialize Firebase with: ```kotlin FirebaseApp.initializeApp(this) ``` I’ve double-checked that my Firestore rules allow read access and that the configuration in the Firebase console is correct. I've also added the appropriate dependencies in `build.gradle`: ```groovy dependencies { implementation 'com.google.firebase:firebase-firestore-ktx:24.0.0' implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-play-services:1.6.0' } ``` Despite this, the behavior continues when I call `fetchData()`. I've ensured that the method is invoked after the `initializeApp` call, but I still receive the `IllegalStateException`. I've also tried moving the initialization into a `ViewModel`, but the scenario remains. Any guidance on what might be going wrong or how to effectively debug this scenario would be greatly appreciated! This is part of a larger application I'm building. Is there a better approach? I recently upgraded to Kotlin LTS. Thanks, I really appreciate it! Am I approaching this the right way? For reference, this is a production REST API. Thanks for your help in advance!