69 lines
1.8 KiB
TypeScript
69 lines
1.8 KiB
TypeScript
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import { JsonValue } from '$std/json/common.ts'
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export type JsonCompatible = JsonValue | { toJSON(): JsonValue } | unknown
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export function respondApi<
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Kind extends ApiPayload['kind'],
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Payload extends JsonCompatible,
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>(kind: Kind, payload?: Payload, status?: number, statusText?: string): Response {
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if (kind === 'error') {
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return Response.json({
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kind: 'error',
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error: String(payload ?? ''),
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} as ApiPayload, {
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status: status ?? 500,
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statusText
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})
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}
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return Response.json({
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kind: 'success',
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data: payload ?? null,
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} as ApiPayload)
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}
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export async function requestApi<
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Payload extends JsonCompatible | undefined,
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ApiResponse extends JsonCompatible,
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>(
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route: string,
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method: 'GET' | 'POST' | 'DELETE' | 'PATCH',
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payload?: Payload | null,
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): Promise<ApiResponse> {
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const csrf = getCookie('_CSRF') ?? ''
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const base = new URL('/api/', location.origin)
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const endpoint = new URL(route.startsWith('/') ? `.${route}` : route, base.href)
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const response = await fetch(endpoint, {
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method,
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headers: {
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'Content-Type': 'application/json; charset=utf-8',
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'X-CSRF-TOKEN': csrf
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},
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body: payload ? JSON.stringify(payload) : null,
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})
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const apiPayload = await response.json() as ApiPayload<ApiResponse>
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if (apiPayload.kind === 'error') {
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throw new Error(`api request error while getting "${endpoint.href}"`, {
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cause: apiPayload.error,
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})
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}
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return apiPayload.data
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}
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export type ApiPayload<ApiResponse extends JsonCompatible = never> = {
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kind: 'success'
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data: ApiResponse
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} | {
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kind: 'error'
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error: string
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}
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function getCookie(name: string): string | undefined {
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const cookiesEntries = document.cookie.split(';').map(cookie => cookie.trim().split('='))
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const cookies = Object.fromEntries(cookiesEntries)
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return cookies[name]
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}
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