Merged in fix/delete-fuzzy (pull request #1538)

Support for delete keys fuzzy

* Support for delete keys fuzzy

* Added some logs


Approved-by: Anton Gunnarsson

apps/redis-api/src/routes/api/cache.ts

@@ -56,13 +56,14 @@ export const cacheRoutes = new Elysia({ prefix: "/cache" })
     "/",
     async ({ query: { key, fuzzy }, set }) => {
       key = validateKey(key);
-            console.log("DELETE /cache", key);
+      console.log("DELETE /cache", key, { fuzzy });
 
       if (fuzzy) {
-                key = `*${key}*`;
-            }
-
+        await deleteWithPattern(`*${key}*`);
+      } else {
         await redis.del(key);
+        console.log("Deleted key: ", key);
+      }
 
       set.status = 204;
       return;
@@ -80,9 +81,7 @@ function validateKey(key: string) {
   const parsedKey = decodeURIComponent(key);
 
   if (parsedKey.length < MIN_LENGTH) {
-        throw new ModelValidationError(
-            "Key has to be atleast 1 character long"
-        );
+    throw new ModelValidationError("Key has to be atleast 1 character long");
   }
 
   if (parsedKey.includes("*")) {
@@ -91,3 +90,25 @@ function validateKey(key: string) {
 
   return parsedKey;
 }
+
+async function deleteWithPattern(pattern: string) {
+  let cursor = "0";
+  let keys: string[] = [];
+
+  do {
+    const [newCursor, foundKeys] = await redis.scan(
+      cursor,
+      "MATCH",
+      pattern,
+      "COUNT",
+      5000
+    );
+    cursor = newCursor;
+    keys.push(...foundKeys);
+  } while (cursor !== "0");
+
+  if (keys.length > 0) {
+    await redis.del(...keys);
+  }
+  console.log("Deleted number of keys: ", keys.length);
+}