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52 lines
1.4 KiB
52 lines
1.4 KiB
import { createUseFetch } from '#imports'
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import type { NitroFetchRequest } from 'nitropack/types'
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import type { $Fetch } from 'ofetch'
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import type { NuxtApp } from '#app'
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/** 与 `R.success` / `R.error` 返回结构对齐 */
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export type ApiResponse<T = unknown> = {
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code: number
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message: string
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data: T
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}
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/** 从 Nitro 推断的响应体上剥离一层 `ApiResponse`，得到 `data` 字段类型 */
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export type UnwrapApiResponse<T> = T extends ApiResponse<infer D> ? D : T
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export function unwrapApiBody<T>(payload: ApiResponse<T>): T {
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if (payload.code !== 0) {
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throw new Error(payload.message)
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}
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return payload.data
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}
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export const request = $fetch.create({
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credentials: 'include',
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})
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interface AsyncDataRequestContext {
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cause: 'initial' | 'refresh:manual' | 'refresh:hook' | 'watch'
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}
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function ssrFriendlyCache<DataT>(key: string, nuxtApp: NuxtApp, ctx: AsyncDataRequestContext): DataT | undefined {
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// SSR 首次水合用 payload 缓存（零闪烁），refresh 时跳过缓存走真实请求
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if (ctx.cause === 'initial') {
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return nuxtApp.payload.data[key] as DataT | undefined
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}
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return undefined
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}
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const httpFetchDefaults = {
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retry: 0,
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$fetch: import.meta.server ? undefined : request,
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transform: unwrapApiBody,
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getCachedData: ssrFriendlyCache,
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}
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export const _useHttpFetch = createUseFetch(httpFetchDefaults)
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export const _useLazyHttpFetch = createUseFetch({
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...httpFetchDefaults,
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lazy: true,
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})
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