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fix(type): improve type inference on asyncData option
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@ -28,13 +28,13 @@ type MultiWatchSources = (WatchSource<unknown> | object)[]
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export interface AsyncDataOptions<
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DataT,
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Transform extends _Transform<DataT, any> = _Transform<DataT, DataT>,
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PickKeys extends KeyOfRes<_Transform> = KeyOfRes<Transform>
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TransformData = DataT,
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PickKeys extends KeysOf<TransformData> =KeysOf<TransformData>,
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> {
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server?: boolean
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lazy?: boolean
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default?: () => DataT | Ref<DataT> | null
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transform?: Transform
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default?: () => TransformData | Ref<TransformData> | null
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transform?: _Transform<DataT, TransformData>,
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pick?: PickKeys
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watch?: MultiWatchSources
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immediate?: boolean
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@ -64,33 +64,33 @@ const getDefault = () => null
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export function useAsyncData<
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DataT,
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DataE = Error,
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Transform extends _Transform<DataT> = _Transform<DataT, DataT>,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>
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TransformData = DataT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>
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> (
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handler: (ctx?: NuxtApp) => Promise<DataT>,
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options?: AsyncDataOptions<DataT, Transform, PickKeys>
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): AsyncData<PickFrom<ReturnType<Transform>, PickKeys>, DataE | null>
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options?: AsyncDataOptions<DataT, TransformData, PickKeys>
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): AsyncData<PickFrom<TransformData, PickKeys>, DataE | null>
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export function useAsyncData<
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DataT,
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DataE = Error,
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Transform extends _Transform<DataT> = _Transform<DataT, DataT>,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>
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TransformData = DataT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>
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> (
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key: string,
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handler: (ctx?: NuxtApp) => Promise<DataT>,
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options?: AsyncDataOptions<DataT, Transform, PickKeys>
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): AsyncData<PickFrom<ReturnType<Transform>, PickKeys>, DataE | null>
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options?: AsyncDataOptions<DataT, TransformData, PickKeys>
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): AsyncData<PickFrom<TransformData, PickKeys>, DataE | null>
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export function useAsyncData<
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DataT,
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DataE = Error,
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Transform extends _Transform<DataT> = _Transform<DataT, DataT>,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>
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> (...args: any[]): AsyncData<PickFrom<ReturnType<Transform>, PickKeys>, DataE | null> {
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TransformData = DataT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>
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> (...args: any[]): AsyncData<PickFrom<TransformData, PickKeys>, DataE | null> {
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const autoKey = typeof args[args.length - 1] === 'string' ? args.pop() : undefined
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if (typeof args[0] !== 'string') { args.unshift(autoKey) }
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// eslint-disable-next-line prefer-const
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let [key, handler, options = {}] = args as [string, (ctx?: NuxtApp) => Promise<DataT>, AsyncDataOptions<DataT, Transform, PickKeys>]
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let [key, handler, options = {}] = args as [string, (ctx?: NuxtApp) => Promise<DataT>, AsyncDataOptions<DataT, TransformData, PickKeys>]
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// Validate arguments
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if (typeof key !== 'string') {
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@ -122,7 +122,7 @@ export function useAsyncData<
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}
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}
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// TODO: Else, somehow check for conflicting keys with different defaults or fetcher
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const asyncData = { ...nuxt._asyncData[key] } as AsyncData<DataT, DataE>
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const asyncData = { ...nuxt._asyncData[key] } as AsyncData<TransformData, DataE>
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asyncData.refresh = asyncData.execute = (opts = {}) => {
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if (nuxt._asyncDataPromises[key]) {
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@ -146,15 +146,16 @@ export function useAsyncData<
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reject(err)
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}
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})
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.then((result) => {
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.then((_result) => {
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// If this request is cancelled, resolve to the latest request.
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if ((promise as any).cancelled) { return nuxt._asyncDataPromises[key] }
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let result = _result as unknown as TransformData
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if (options.transform) {
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result = options.transform(result)
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result = options.transform(_result)
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}
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if (options.pick) {
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result = pick(result as any, options.pick) as DataT
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result = pick(result as any, options.pick) as TransformData
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}
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asyncData.data.value = result
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asyncData.error.value = null
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@ -239,36 +240,36 @@ export function useAsyncData<
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const asyncDataPromise = Promise.resolve(nuxt._asyncDataPromises[key]).then(() => asyncData) as AsyncData<DataT, DataE>
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Object.assign(asyncDataPromise, asyncData)
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return asyncDataPromise as AsyncData<PickFrom<ReturnType<Transform>, PickKeys>, DataE>
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return asyncDataPromise as AsyncData<PickFrom<TransformData, PickKeys>, DataE>
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}
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export function useLazyAsyncData<
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DataT,
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DataE = Error,
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Transform extends _Transform<DataT> = _Transform<DataT, DataT>,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>
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TransformData = DataT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>
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> (
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handler: (ctx?: NuxtApp) => Promise<DataT>,
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options?: Omit<AsyncDataOptions<DataT, Transform, PickKeys>, 'lazy'>
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): AsyncData<PickFrom<ReturnType<Transform>, PickKeys>, DataE | null>
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options?: Omit<AsyncDataOptions<DataT, TransformData, PickKeys>, 'lazy'>
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): AsyncData<PickFrom<TransformData, PickKeys>, DataE | null>
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export function useLazyAsyncData<
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DataT,
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DataE = Error,
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Transform extends _Transform<DataT> = _Transform<DataT, DataT>,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>
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TransformData = DataT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>
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> (
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key: string,
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handler: (ctx?: NuxtApp) => Promise<DataT>,
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options?: Omit<AsyncDataOptions<DataT, Transform, PickKeys>, 'lazy'>
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): AsyncData<PickFrom<ReturnType<Transform>, PickKeys>, DataE | null>
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options?: Omit<AsyncDataOptions<DataT, TransformData, PickKeys>, 'lazy'>
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): AsyncData<PickFrom<TransformData, PickKeys>, DataE | null>
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export function useLazyAsyncData<
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DataT,
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DataE = Error,
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Transform extends _Transform<DataT> = _Transform<DataT, DataT>,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>
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> (...args: any[]): AsyncData<PickFrom<ReturnType<Transform>, PickKeys>, DataE | null> {
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TransformData = DataT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>
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> (...args: any[]): AsyncData<PickFrom<TransformData, PickKeys>, DataE | null> {
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const autoKey = typeof args[args.length - 1] === 'string' ? args.pop() : undefined
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if (typeof args[0] !== 'string') { args.unshift(autoKey) }
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const [key, handler, options] = args as [string, (ctx?: NuxtApp) => Promise<DataT>, AsyncDataOptions<DataT, Transform, PickKeys>]
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const [key, handler, options] = args as [string, (ctx?: NuxtApp) => Promise<DataT>, AsyncDataOptions<DataT, TransformData, PickKeys>]
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// @ts-ignore
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return useAsyncData(key, handler, { ...options, lazy: true }, null)
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}
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@ -4,7 +4,7 @@ import type { Ref } from 'vue'
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import { computed, unref, reactive } from 'vue'
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import { hash } from 'ohash'
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import { useRequestFetch } from './ssr'
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import type { AsyncDataOptions, _Transform, KeyOfRes, AsyncData, PickFrom } from './asyncData'
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import type { AsyncDataOptions, _Transform, KeysOf, AsyncData, PickFrom } from './asyncData'
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import { useAsyncData } from './asyncData'
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export type FetchResult<ReqT extends NitroFetchRequest, M extends AvailableRouterMethod<ReqT>> = TypedInternalResponse<ReqT, unknown, M>
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@ -17,11 +17,11 @@ type ComputedFetchOptions<R extends NitroFetchRequest, M extends AvailableRouter
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export interface UseFetchOptions<
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DataT,
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Transform extends _Transform<DataT, any> = _Transform<DataT, DataT>,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>,
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TransformData = DataT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>,
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R extends NitroFetchRequest = string & {},
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M extends AvailableRouterMethod<R> = AvailableRouterMethod<R>
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> extends AsyncDataOptions<DataT, Transform, PickKeys>, ComputedFetchOptions<R, M> {
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> extends AsyncDataOptions<DataT, TransformData, PickKeys>, ComputedFetchOptions<R, M> {
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key?: string
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$fetch?: typeof globalThis.$fetch
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}
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@ -32,23 +32,23 @@ export function useFetch<
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ReqT extends NitroFetchRequest = NitroFetchRequest,
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Method extends AvailableRouterMethod<ReqT> = 'get' extends AvailableRouterMethod<ReqT> ? 'get' : AvailableRouterMethod<ReqT>,
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_ResT = ResT extends void ? FetchResult<ReqT, Method> : ResT,
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Transform extends (res: _ResT) => any = (res: _ResT) => _ResT,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>
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TransformData = _ResT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>
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> (
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request: Ref<ReqT> | ReqT | (() => ReqT),
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opts?: UseFetchOptions<_ResT, Transform, PickKeys, ReqT, Method>
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): AsyncData<PickFrom<ReturnType<Transform>, PickKeys>, ErrorT | null>
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opts?: UseFetchOptions<_ResT, TransformData, PickKeys, ReqT, Method>
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): AsyncData<PickFrom<TransformData, PickKeys>, ErrorT | null>
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export function useFetch<
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ResT = void,
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ErrorT = FetchError,
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ReqT extends NitroFetchRequest = NitroFetchRequest,
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Method extends AvailableRouterMethod<ReqT> = 'get' extends AvailableRouterMethod<ReqT> ? 'get' : AvailableRouterMethod<ReqT>,
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_ResT = ResT extends void ? FetchResult<ReqT, Method> : ResT,
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Transform extends (res: _ResT) => any = (res: _ResT) => _ResT,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>
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TransformData = _ResT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>
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> (
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request: Ref<ReqT> | ReqT | (() => ReqT),
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arg1?: string | UseFetchOptions<_ResT, Transform, PickKeys, ReqT, Method>,
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arg1?: string | UseFetchOptions<_ResT, TransformData, PickKeys, ReqT, Method>,
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arg2?: string
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) {
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const [opts = {}, autoKey] = typeof arg1 === 'string' ? [{}, arg1] : [arg1, arg2]
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@ -85,7 +85,7 @@ export function useFetch<
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cache: typeof opts.cache === 'boolean' ? undefined : opts.cache
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})
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const _asyncDataOptions: AsyncDataOptions<_ResT, Transform, PickKeys> = {
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const _asyncDataOptions: AsyncDataOptions<_ResT, TransformData, PickKeys> = {
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server,
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lazy,
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default: defaultFn,
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@ -101,7 +101,7 @@ export function useFetch<
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let controller: AbortController
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const asyncData = useAsyncData<_ResT, ErrorT, Transform, PickKeys>(key, () => {
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const asyncData = useAsyncData<_ResT, ErrorT, TransformData, PickKeys>(key, () => {
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controller?.abort?.()
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controller = typeof AbortController !== 'undefined' ? new AbortController() : {} as AbortController
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@ -124,28 +124,28 @@ export function useLazyFetch<
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ReqT extends NitroFetchRequest = NitroFetchRequest,
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Method extends AvailableRouterMethod<ReqT> = 'get' extends AvailableRouterMethod<ReqT> ? 'get' : AvailableRouterMethod<ReqT>,
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_ResT = ResT extends void ? FetchResult<ReqT, Method> : ResT,
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Transform extends (res: _ResT) => any = (res: _ResT) => _ResT,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>
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TransformData = _ResT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>
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> (
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request: Ref<ReqT> | ReqT | (() => ReqT),
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opts?: Omit<UseFetchOptions<_ResT, Transform, PickKeys, Method>, 'lazy'>
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): AsyncData<PickFrom<ReturnType<Transform>, PickKeys>, ErrorT | null>
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opts?: Omit<UseFetchOptions<_ResT, TransformData, PickKeys, Method>, 'lazy'>
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): AsyncData<PickFrom<TransformData, PickKeys>, ErrorT | null>
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export function useLazyFetch<
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ResT = void,
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ErrorT = FetchError,
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ReqT extends NitroFetchRequest = NitroFetchRequest,
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Method extends AvailableRouterMethod<ReqT> = 'get' extends AvailableRouterMethod<ReqT> ? 'get' : AvailableRouterMethod<ReqT>,
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_ResT = ResT extends void ? FetchResult<ReqT, Method> : ResT,
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Transform extends (res: _ResT) => any = (res: _ResT) => _ResT,
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PickKeys extends KeyOfRes<Transform> = KeyOfRes<Transform>
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TransformData = _ResT,
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PickKeys extends KeysOf<TransformData> = KeysOf<TransformData>
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> (
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request: Ref<ReqT> | ReqT | (() => ReqT),
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arg1?: string | Omit<UseFetchOptions<_ResT, Transform, PickKeys, Method>, 'lazy'>,
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arg1?: string | Omit<UseFetchOptions<_ResT, TransformData, PickKeys, Method>, 'lazy'>,
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arg2?: string
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) {
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const [opts, autoKey] = typeof arg1 === 'string' ? [{}, arg1] : [arg1, arg2]
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return useFetch<ResT, ErrorT, ReqT, _ResT, Transform, PickKeys>(request, {
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return useFetch<ResT, ErrorT, ReqT, _ResT, PickKeys>(request, {
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...opts,
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lazy: true
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},
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9
test/fixtures/basic/types.ts
vendored
9
test/fixtures/basic/types.ts
vendored
@ -199,9 +199,7 @@ describe('composables', () => {
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expectTypeOf(useAsyncData('test', () => Promise.resolve(500), { default: () => ref(500) }).data).toEqualTypeOf<Ref<number | null>>()
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expectTypeOf(useAsyncData('test', () => Promise.resolve(500), { default: () => 500 }).data).toEqualTypeOf<Ref<number | null>>()
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// @ts-expect-error
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expectTypeOf(useAsyncData('test', () => Promise.resolve('500'), { default: () => ref(500) }).data).toEqualTypeOf<Ref<number | null>>()
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// @ts-expect-error
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expectTypeOf(useAsyncData('test', () => Promise.resolve('500'), { default: () => 500 }).data).toEqualTypeOf<Ref<number | null>>()
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expectTypeOf(useFetch('/test', { default: () => ref(500) }).data).toEqualTypeOf<Ref<number | null>>()
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@ -235,6 +233,13 @@ describe('composables', () => {
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.toEqualTypeOf(useLazyAsyncData(() => Promise.resolve({ foo: Math.random() })))
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expectTypeOf(useLazyAsyncData('test', () => Promise.resolve({ foo: Math.random() }), { transform: data => data.foo }))
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.toEqualTypeOf(useLazyAsyncData(() => Promise.resolve({ foo: Math.random() }), { transform: data => data.foo }))
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// Default values: #14437
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expectTypeOf(useAsyncData('test', () => Promise.resolve({ foo: { bar: 500 } }), { default: () => ({ bar: 500 }), transform: v => v.foo }).data).toEqualTypeOf<Ref<{bar: number} | null>>()
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expectTypeOf(useLazyAsyncData('test', () => Promise.resolve({ foo: { bar: 500 } }), { default: () => ({ bar: 500 }), transform: v => v.foo }))
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.toEqualTypeOf(useLazyAsyncData(() => Promise.resolve({ foo: { bar: 500 } }), { default: () => ({ bar: 500 }), transform: v => v.foo }))
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expectTypeOf(useFetch('/api/hey', { default: () => 'bar', transform: v => v.foo }).data).toEqualTypeOf<Ref<string | null>>()
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expectTypeOf(useLazyFetch('/api/hey', { default: () => 'bar', transform: v => v.foo }).data).toEqualTypeOf<Ref<string | null>>()
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})
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})
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