Firestore startafter id. Please help! Hi! Firestore startA...
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Firestore startafter id. Please help! Hi! Firestore startAfter () returning the same data in infinite scrolling when ordered by descending timestamp - Cannot refactor solution to my circumstances How to combine Firestore orderBy desc with startAfter cursor - Cannot refactor solution to my circumstances (this uses Firebase v8) Home > @firebase/database > startAfter startAfter () function Creates a QueryConstraint with the specified starting point (exclusive). limit 10 I'm writing a profile page with chronological user posts (latest post on top) using Firestore on Ionic by setting orderBy () to " timestamp " descending. For example, if you Dec 5, 2019 · A simple way to think of this: if you order on questionID you'll need to know at least the value of questionID of the document to start after. return Firestore. Dec 18, 2025 · This guide demystifies the problem, explains why it occurs, and provides step-by-step solutions with code examples to ensure your Firestore pagination works flawlessly with descending order. You'll often also want to know the key, to disambiguate between documents with the same values. How to use startAfter in next query? Firestore. The starting point is exclusive. Using startAt(), startAfter(), endBefore(), endAt() and equalTo() allows you to choose arbitrary starting and ending points for your queries. Issue If you have a collection where multiple documents have the same value for a field you order on, the startAfter method always returns the first document with the value. Order and limit data orderBy() limit() limit() Note: An orderBy() clause also filters for existence of the given field. But startAfter always give the same response. instance. orderBy( Home > @firebase/firestore > / @firebase/firestore Classes Functions How best to handle when there are no more documents to load when using "start after". I'm giving this two examples of the issue the first image is when it works, filtering with a property (createdAt), the second passing the whole doc returns empty and can't make the forEach to loop through the data Explore the Firebase JavaScript API reference for Firestore, featuring detailed documentation and examples for seamless integration in your applications. 6 days ago · Use the startAt() or startAfter() methods to define the start point for a query. I'm using Ionic's infinite loading to load more posts when the user reaches the bottom, but the result is that Firestore loads the exact same posts over and over again. For detailed documentation that includes this code sample, see the following: To authenticate to Firestore, set up Application The SDK handles situations where the documents contain the same field value by also including the document id, such that you don't accidently skip over any when using pagination. then I fetch next 10 questions. 5 i'm having this problem where I can't make the startAfter work with my data in Firestore. If user got 8 marks out of 10. Check total vs current and if they are equal, disable the load more function? If so, how do I find the total count of the collections documents?. Use start cursors and limits to paginate Firestore collections. collection('Posts'). It is supposed to use the ID of the document as a disambiguatio Cloud Firestore get() addSnapshotListener() Get Data Note: While the code samples cover multiple languages, the text explaining the samples refers to the Web method names. Should I grab the collections total document length each time I fire a "load more" function. collection('products') . val questionCollectionRe I am using Flutter (cloud_firestore) and trying to get data from Firestore after document with title 'xxx', but it returns 0 results. Learn how to solve common Firestore query problems when using `startAfter` to navigate through chat messages effectively. In my react app I want to add firestore pagination using startAfter, the idea is that initially user sees 20 blogs, then if user selects a new page, I fetch the next "20*page_number" blog I want to update my gridview and get data from firestore with startAfter. I created a quiz like app where 10 questions are fetched once. The startAt() method includes the start point, while the startAfter() method excludes it. Aug 21, 2024 · We store the last document snapshot in the afterThis state value and we pass it to startAfter method in order for the query to start looking for documents from afterThis doc. My code how I get first data is below.
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