nitropack/dist/runtime/entries/cloudflare.mjs

Build and Deploy Universal JavaScript Servers

import "#internal/nitro/virtual/polyfill";
import {
  getAssetFromKV,
  mapRequestToAsset
} from "@cloudflare/kv-asset-handler";
import { withoutBase } from "ufo";
import { requestHasBody } from "../utils.mjs";
import { nitroApp } from "#internal/nitro/app";
import { useRuntimeConfig } from "#internal/nitro";
import { getPublicAssetMeta } from "#internal/nitro/virtual/public-assets";
addEventListener("fetch", (event) => {
  event.respondWith(handleEvent(event));
});
async function handleEvent(event) {
  try {
    return await getAssetFromKV(event, {
      cacheControl: assetsCacheControl,
      mapRequestToAsset: baseURLModifier
    });
  } catch {
  }
  const url = new URL(event.request.url);
  let body;
  if (requestHasBody(event.request)) {
    body = Buffer.from(await event.request.arrayBuffer());
  }
  const r = await nitroApp.localCall({
    event,
    context: {
      // https://developers.cloudflare.com/workers//runtime-apis/request#incomingrequestcfproperties
      cf: event.request.cf
    },
    url: url.pathname + url.search,
    host: url.hostname,
    protocol: url.protocol,
    headers: Object.fromEntries(event.request.headers.entries()),
    method: event.request.method,
    redirect: event.request.redirect,
    body
  });
  return new Response(r.body, {
    // @ts-ignore TODO: Should be HeadersInit instead of string[][]
    headers: normalizeOutgoingHeaders(r.headers),
    status: r.status,
    statusText: r.statusText
  });
}
function assetsCacheControl(_request) {
  const url = new URL(_request.url);
  const meta = getPublicAssetMeta(url.pathname);
  if (meta.maxAge) {
    return {
      browserTTL: meta.maxAge,
      edgeTTL: meta.maxAge
    };
  }
  return {};
}
const baseURLModifier = (request) => {
  const url = withoutBase(request.url, useRuntimeConfig().app.baseURL);
  return mapRequestToAsset(new Request(url, request));
};
function normalizeOutgoingHeaders(headers) {
  return Object.entries(headers).map(([k, v]) => [
    k,
    Array.isArray(v) ? v.join(",") : v
  ]);
}