update

src/handler.ts

@@ -1,32 +1,25 @@
-import { timeNow } from './utils';
+import { allowedMethod, timeNow } from './utils';
 import serveResult from './helpers';
 
-export default async function checkCache(request: Request): Promise<Response> {
-  if (request.method === 'GET' || request.method === 'HEAD') {
-    const now = timeNow();
-    let cache = caches.default;
-    let response = await cache.match(request.url);
-    if (!response) {
-      response = await serveResult(request);
-      await cache.put(request.url, response.clone());
-    }
-    response = new Response(response.body, response);
-    response.head
-    response.headers.delete('Cache-Control');
-    response.headers.append('X-Response-Time', timeNow() - now);
-    return response;
-  } else {
-    return new Response(
-      JSON.stringify({
-        success: false,
-        message: 'Method not allowed'
-      }), 
-      {
-        status: 405,
-        headers: {
-          'Content-Type': 'application/json; charset=utf-8',
-        }
+export default async function checkCache(request: Request): Promise <Response> {
+  if (allowedMethod.indexOf(request.method) === -1) {
+    return new Response(JSON.stringify({ success: false, message: 'Method not allowed' }), {
+      status: 405,
+      headers: {
+        'Content-Type': 'application/json; charset=utf-8',
       }
-    );
+    });
   }
+  const now = timeNow();
+  let cache = caches.default;
+  let response = await cache.match(request.url);
+  if (!response) {
+    response = await serveResult(request);
+    await cache.put(request.url, response.clone());
+  }
+  response = new Response(response.body, response);
+  response.head
+  response.headers.delete('Cache-Control');
+  response.headers.set('X-Response-Time', timeNow() - now);
+  return response;
 }

src/helpers.ts

@@ -1,4 +1,4 @@
-import { getUrl, Result } from './utils';
+import { allowedMethod, getUrl, Result } from './utils';
 import callAPI from './routing';
 
 export default async function serveResult(request: Request): Promise<Response> {
@@ -21,7 +21,7 @@ export default async function serveResult(request: Request): Promise<Response> {
     status: code,
     headers: {
       'Access-Control-Allow-Origin': '*',
-      'Access-Control-Allow-Methods': 'GET, HEAD',
+      'Access-Control-Allow-Methods': allowedMethod.join(', '),
       'Access-Control-Expose-Headers': 'X-Response-Time',
       'Age': 0,
       'CF-Cache-Status': 'MISS',

src/utils.ts

@@ -1,3 +1,5 @@
+export const allowedMethod = ['GET', 'HEAD', 'OPTION', 'POST'];
+
 export function getUrl(request: Request): URL {
   return new URL(request.url);
 }

wrangler.toml

@@ -1,6 +1,4 @@
 name = "validev"
 main = "./src/index.ts"
 workers_dev = true
-compatibility_date = "2022-01-01"
-[placement]
-mode = "smart"
+compatibility_date = "2022-01-01"