| --- |
| id: default-query-function |
| title: Default Query Function |
| ref: docs/framework/react/guides/default-query-function.md |
| --- |
| |
| [//]: # 'Example' |
|
|
| ```ts |
| // Define a default query function that will receive the query key |
| const defaultQueryFn: QueryFunction = async ({ queryKey }) => { |
| const { data } = await axios.get( |
| `https://jsonplaceholder.typicode.com${queryKey[0]}`, |
| ) |
| return data |
| } |
| |
| // provide the default query function to your app with defaultOptions |
| const queryClient = new QueryClient({ |
| defaultOptions: { |
| queries: { |
| queryFn: defaultQueryFn, |
| }, |
| }, |
| }) |
| |
| bootstrapApplication(MyAppComponent, { |
| providers: [provideTanStackQuery(queryClient)], |
| }) |
| |
| export class PostsComponent { |
| // All you have to do now is pass a key! |
| postsQuery = injectQuery<Array<Post>>(() => ({ |
| queryKey: ['/posts'], |
| })) |
| // ... |
| } |
| |
| export class PostComponent { |
| // You can even leave out the queryFn and just go straight into options |
| postQuery = injectQuery<Post>(() => ({ |
| enabled: this.postIdSignal() > 0, |
| queryKey: [`/posts/${this.postIdSignal()}`], |
| })) |
| // ... |
| } |
| ``` |
|
|
| [//]: # 'Example' |
|
|
