Add eslint rules for dealing with promises

src/utils/queryCacher.ts

@@ -53,7 +53,7 @@ async function getAndSplit<T, U extends string>(fetchFromDB: (values: U[]) => Pr
     if (valuesToBeFetched.length > 0) {
         data = await fetchFromDB(valuesToBeFetched);
 
-        new Promise(() => {
+        void new Promise(() => {
             const newResults: Record<string, T[]> = {};
             for (const item of data) {
                 const splitValue = (item as unknown as Record<string, string>)[splitKey];

src/utils/redis.ts

@@ -28,7 +28,7 @@ let exportClient: RedisSB = {
 if (config.redis?.enabled) {
     Logger.info("Connected to redis");
     const client = createClient(config.redis);
-    client.connect();
+    void client.connect(); // void as we don't care about the promise
     exportClient = client as RedisSB;
 
     const get = client.get.bind(client);
@@ -40,7 +40,7 @@ if (config.redis?.enabled) {
         }).catch((err) => reject(err));
     });
     exportClient.increment = (key) => new Promise((resolve, reject) =>
-        client.multi()
+        void client.multi()
             .incr(key)
             .expire(key, 60)
             .exec()

src/utils/youtubeApi.ts

@@ -39,8 +39,8 @@ export class YouTubeAPI {
                 }
                 const apiResult = data as APIVideoData;
                 DiskCache.set(cacheKey, apiResult)
-                    .catch((err: any) => Logger.warn(err))
-                    .then(() => Logger.debug(`YouTube API: video information cache set for: ${videoID}`));
+                    .then(() => Logger.debug(`YouTube API: video information cache set for: ${videoID}`))
+                    .catch((err: any) => Logger.warn(err));
 
                 return { err: false, data: apiResult };
             } else {