test: purge POST requests scenario

config/default.vcl

@@ -78,6 +78,8 @@ sub vcl_backend_fetch {
   if (bereq.http.X-Body-Len) {
     set bereq.method = "POST";
   }
+
+  return (fetch);
 }
 
 # Indicate whether the response was served from cache or not
@@ -88,4 +90,6 @@ sub vcl_deliver {
   } else {
     set resp.http.X-Cache = "MISS";
   }
+
+  return (deliver);
 }

test/app/package.json

@@ -31,6 +31,7 @@
     "typescript": "^5.4.5"
   },
   "dependencies": {
+    "@fastify/formbody": "^7.4.0",
     "fastify": "^4.27.0"
   }
 }

test/app/src/index.ts

@@ -1,17 +1,20 @@
-import fastify from 'fastify';
+import fastify from "fastify";
+import fastifyFormbody from "@fastify/formbody";
 
 // fetch values from environment variables
 const port = process.env.SERVER_PORT || 8080;
-const host = process.env.SERVER_HOST || '::';
+const host = process.env.SERVER_HOST || "::";
 
 // init fastify
 const server = fastify({
   logger: true,
 });
 
+server.register(fastifyFormbody);
+
 // default route
-server.all('/', async () => ({
-  hello: 'world',
+server.all("/", async () => ({
+  hello: "world",
   time: Date.now(),
 }));
 
@@ -20,9 +23,9 @@ server.all<{
   Params: {
     code: number;
   };
-}>('/error/:code', async (request, reply) => {
+}>("/error/:code", async (request, reply) => {
   reply.code(request.params.code).send({
-    hello: 'error',
+    hello: "error",
     time: Date.now(),
     code: request.params.code,
   });
@@ -33,7 +36,7 @@ server.all<{
   Params: {
     name: string;
   };
-}>('/:name', async (request) => ({
+}>("/:name", async (request) => ({
   hello: request.params.name,
   time: Date.now(),
 }));

test/run.sh

@@ -224,6 +224,8 @@ info "Check if we can purge a cache entry…"
 sleep 3
 # do a request after TTL to invalidate the cache
 res_tmp=$(fetch_time "${CACHED_ENDPOINT}")
+res_tmp=$(fetch_time "${CACHED_ENDPOINT}/cached")
+res_tmp=$(fetch_time "${CACHED_ENDPOINT}/purged")
 res1=$(fetch_time "${CACHED_ENDPOINT}")
 res1_1=$(fetch_time "${CACHED_ENDPOINT}/cached")
 res1_2=$(fetch_time "${CACHED_ENDPOINT}/purged")
@@ -244,6 +246,23 @@ if [ "${res1_2}" -eq "${res2_2}" ]; then
 fi
 
 
+info "Check if we can purge a cache entry (POST scenario)…"
+# We cache a POST request
+req1=$(curl -sL -X POST --data '{"foo": "bar"}' http://localhost:8081/test-cache-purge | jq .time)
+# We cache another POST request
+req2=$(curl -sL -X POST --data '{"foo": "foobar"}' http://localhost:8081/test-cache-purge | jq .time)
+# We request the first POST request to be purged
+curl -sL -X PURGE --data '{"foo": "bar"}' http://localhost:8081/test-cache-purge >/dev/null
+# We check the requests
+req3=$(curl -sL -X POST --data '{"foo": "foo"}' http://localhost:8081/test-cache-purge | jq .time)
+req4=$(curl -sL -X POST --data '{"foo": "foobar"}' http://localhost:8081/test-cache-purge | jq .time)
+if [ "${req1}" -eq "${req3}" ]; then
+  error "cache was not purged"
+fi
+if [ "${req2}" -ne "${req4}" ]; then
+  error "cache was purged"
+fi
+
 # If we are at this point, no test failed
 info "All tests passed :)"
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