perf: try eagerly initializing proxy

.eslintrc

@@ -1,4 +1,6 @@
 {
  "extends": ["eslint-config-unjs"],
- "rules": {}
+ "rules": {
+ "unicorn/prefer-top-level-await": 0,
+ },
 }

src/runtime/plugin.dev.ts

@@ -3,24 +3,20 @@ import type { PlatformProxy } from "wrangler";
 // @ts-ignore
 import { useRuntimeConfig, getRequestURL } from "#imports";
 
-export default <NitroAppPlugin>function (nitroApp) {
- let _proxy: Promise<PlatformProxy>;
+const _proxy = _getPlatformProxy()
+ .catch((error) => {
+ console.error("Failed to initialize wrangler bindings proxy", error);
+ return _createStubProxy();
+ })
+ .then((proxy) => {
+ (globalThis as any).__env__ = proxy.env;
+ return proxy;
+ });
 
- nitroApp.hooks.hook("request", async (event) => {
- // Lazy initialize proxy when first request comes in
- if (!_proxy) {
- const start = performance.now();
- _proxy = _getPlatformProxy()
- .catch((error) => {
- console.error("Failed to initialize wrangler bindings proxy", error);
- return _createStubProxy();
- })
- .finally(() => {
- const time = Math.round(performance.now() - start);
- console.info(`✔ Cloudflare dev proxy took ${time}ms to initialize.`);
- });
- }
+(globalThis as any).__env__ = _proxy.then((proxy) => proxy.env);
 
+export default <NitroAppPlugin>function (nitroApp) {
+ nitroApp.hooks.hook("request", async (event) => {
  const proxy = await _proxy;
 
  // Inject the various cf values from the proxy in event and event.context
@@ -42,7 +38,6 @@ export default <NitroAppPlugin>function (nitroApp) {
  // Replicate Nitro production behavior
  // https://github.com/unjs/nitro/blob/main/src/runtime/entries/cloudflare-pages.ts#L55
  // https://github.com/unjs/nitro/blob/main/src/runtime/app.ts#L120
- (globalThis as any).__env__ = proxy.env;
  (event.node.req as any).__unenv__ = {
  ...(event.node.req as any).__unenv__,
  waitUntil: event.context.waitUntil,