Angular Query

This library is currently in an experimental stage. This means that breaking changes will happen in minor AND patch releases. Use at your own risk. If you choose to rely on this in production in an experimental stage, please lock your version to a patch-level version to avoid unexpected breakages.

Functions for fetching, caching and updating asynchronous data in Angular

Documentation

Visit https://tanstack.com/query/latest/docs/angular/overview

Quick Features

• Transport/protocol/backend agnostic data fetching (REST, GraphQL, promises, whatever!)
• Auto Caching + Refetching (stale-while-revalidate, Window Refocus, Polling/Realtime)
• Parallel + Dependent Queries
• Mutations + Reactive Query Refetching
• Multi-layer Cache + Automatic Garbage Collection
• Paginated + Cursor-based Queries
• Load-More + Infinite Scroll Queries w/ Scroll Recovery
• Request Cancellation
• Dedicated Devtools

Quick Start

Angular Query requires Angular 16.

1. Install angular-query

   $ npm i @tanstack/angular-query-experimental
   # or
   $ pnpm add @tanstack/angular-query-experimental
   # or
   $ yarn add @tanstack/angular-query-experimental
   # or
   $ bun add @tanstack/angular-query-experimental

2. Initialize Angular Query by adding provideAngularQuery to your application

   import { provideAngularQuery } from '@tanstack/angular-query-experimental'
   import { QueryClient } from '@tanstack/angular-query-experimental'
   
   bootstrapApplication(AppComponent, {
     providers: [provideAngularQuery(new QueryClient())],
   })

3. Inject query

   import { injectQuery } from '@tanstack/angular-query-experimental'
   import { Component } from '@angular/core'
   
   @Component({...})
   export class TodosComponent {
     info = injectQuery(() => ({ queryKey: ['todos'], queryFn: fetchTodoList }))
   }

4. If you need to update options on your query dynamically, make sure to pass them as signals

   import { injectQuery } from '@tanstack/angular-query-experimental'
   import { signal, Component } from '@angular/core'
   
   @Component({...})
   export class TodosComponent {
     id = signal(1)
     enabled = signal(false)
   
     info = injectQuery(() => ({
       queryKey: ['todos', this.id()],
       queryFn: fetchTodoList,
       enabled: this.enabled(),
     }))
   }