Questions tagged [google-cloud-firestore]
Cloud Firestore is an auto-scaling real-time document database for storing, syncing, and querying data for mobile, web and server development.
google-cloud-firestore
4,071
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Why does my function that calls an API or launches a coroutine return an empty or null value?
(Disclaimer: There are a ton of questions which arise from people asking about data being null/incorrect when using asynchronous operations through requests such as facebook,firebase, etc. My ...
- 8,089
30
votes
2
answers
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How to return a DocumentSnapShot as a result of a method?
A custom object that takes a parameter of (DocumentSnapShot documentsnapShot). also is an inner object from Firebase that retrieves a snapshot and set the values to my custom model also have its ...
- 305
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votes
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answer
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Firestore whereEqualTo, orderBy and limit(1) not working
I want to query my Workout Collection for the latest workout from a routine. Meaning I query with whereEqualTo my routineKey, order it by the Started TimeStamp in descending order and then limit to 1 ...
- 7,584
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How to return a list from Firestore database as a result of a function in Kotlin?
I'm building an app for a friend and I use Firestore. What I want is to display a list of favorite places but for some reason, the list is always empty.
I cannot get the data from Firestore. This is ...
- 205
202
votes
17
answers
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Google Firestore - How to get several documents by multiple ids in one round-trip?
I am wondering if it's possible to get multiple documents by a list of ids in one round trip (network call) to the Firestore database.
- 9,714
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How to paginate Firestore with Android?
I read Firestore documentation and all articles on internet(stackoverflow) about Firestore pagination but no luck. I tried to implement the exact code in docs, but nothing happens. I have a basic ...
- 895
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How to check a certain data already exists in firestore or not
Before adding a new data into the firestore, i want to check already a data of the same kind exists in the database or not.if already a data was present means i want to prevent the user from entering ...
100
votes
17
answers
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Firestore: How to get random documents in a collection
It is crucial for my application to be able to select multiple documents at random from a collection in firebase.
Since there is no native function built in to Firebase (that I know of) to achieve a ...
- 2,532
496
votes
28
answers
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No Firebase App '[DEFAULT]' has been created - call Firebase.initializeApp() in Flutter and Firebase
I am building a Flutter application and I have integrated Firebase, but I keep getting this error when I click on a button either to register, login, or logout. I have seen other people have asked the ...
- 5,980
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votes
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answers
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How to perform compound queries with logical OR in Cloud Firestore?
From the docs:
You can also chain multiple where() methods to create more specific queries (logical AND).
How can I perform an OR query?
Example:
Give me all documents where the field status is ...
- 20.9k
185
votes
12
answers
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Why is my React component is rendering twice?
I don't know why my React component is rendering twice. So I am pulling a phone number from params and saving it to state so I can search through Firestore. Everything seems to be working fine except ...
- 1,919
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votes
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Cloud Firestore collection count
Is it possible to count how many items a collection has using the new Firebase database, Cloud Firestore?
If so, how do I do that?
- 15.3k
216
votes
28
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Google Firestore: Query on substring of a property value (text search)
I am looking to add a simple search field, would like to use something like
collectionRef.where('name', 'contains', 'searchTerm')
I tried using where('name', '==', '%searchTerm%'), but it didn't ...
- 3,393
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votes
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What is denormalization in Firebase Cloud Firestore?
What is really this denormalization all about when talking about Firebase Cloud Firestore? I read a few articles on the internet and some answers here on stackoverflow and most of the answers ...
- 209
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How to list subcollections in a Cloud Firestore document
Say I have this minimal database stored in Cloud Firestore. How could I retrieve the names of subCollection1 and subCollection2?
rootCollection {
aDocument: {
someField: { value: 1 },
...
- 1,411