63 lines
1.6 KiB
TypeScript
63 lines
1.6 KiB
TypeScript
import type { Route } from './+types'
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export const loader = proxy
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export const action = proxy
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const maxAge = 3600 * 8 // 8 hours
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async function proxy({
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request,
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context
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}: Route.ActionArgs): Promise<Response> {
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const pathname = new URL(request.url).pathname
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const url = new URL(pathname, context.cloudflare.env.ISSUER_URL)
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const headers = new Headers(request.headers)
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const shouldCache =
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request.method === 'GET' && pathname.startsWith('/.well-known/')
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const cache = caches.default
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const cacheKey = new Request(url.toString(), request)
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if (shouldCache) {
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const cached = await cache.match(cacheKey)
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if (cached) {
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return cached
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}
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}
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const response = await fetch(url.toString(), {
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method: request.method,
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headers,
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...(['GET', 'HEAD'].includes(request.method)
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? {}
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: { body: await request.text() })
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})
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if (shouldCache && response.ok) {
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const headers_ = new Headers(response.headers)
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headers_.set('Cache-Control', `public, max-age=${maxAge}`)
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const cacheResponse = new Response(response.clone().body, {
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status: response.status,
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headers: headers_
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})
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// Store asynchronously (don’t block response)
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context.cloudflare.ctx.waitUntil(cache.put(cacheKey, cacheResponse))
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}
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const contentType = response.headers.get('content-type') || ''
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if (
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contentType.includes('application/json') ||
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contentType.startsWith('text/')
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) {
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return new Response(await response.text(), {
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status: response.status,
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headers: response.headers
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})
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}
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return response
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}
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