Enable query result cache for meta / stats / hashtags trend (#4978)

src/db/postgre.ts

@@ -96,6 +96,18 @@ export function initDb(justBorrow = false, sync = false, log = false) {
 		extra: config.db.extra,
 		synchronize: process.env.NODE_ENV === 'test' || sync,
 		dropSchema: process.env.NODE_ENV === 'test' && !justBorrow,
+		cache: {
+			type: 'redis',
+			options: {
+				host: config.redis.host,
+				port: config.redis.port,
+				options:{
+					auth_pass: config.redis.pass,
+					prefix: config.redis.prefix,
+					db: config.redis.db || 0
+				}
+			}
+		},
 		logging: log,
 		logger: log ? new MyCustomLogger() : undefined,
 		entities: [

src/server/api/endpoints/hashtags/trend.ts

@@ -59,6 +59,7 @@ export default define(meta, async () => {
 		.where(`note.createdAt > :date`, { date: new Date(Date.now() - rangeA) })
 		.andWhere(`note.tags != '{}'`)
 		.select(['note.tags', 'note.userId'])
+		.cache(60000) // 1 min
 		.getMany();
 
 	if (tagNotes.length === 0) {
@@ -108,6 +109,7 @@ export default define(meta, async () => {
 			.where(':tag = ANY(note.tags)', { tag: tag })
 			.andWhere('note.createdAt < :lt', { lt: new Date(Date.now() - (interval * i)) })
 			.andWhere('note.createdAt > :gt', { gt: new Date(Date.now() - (interval * (i + 1))) })
+			.cache(60000) // 1 min
 			.getRawOne()
 			.then(x => parseInt(x.count, 10))
 		)));
@@ -119,6 +121,7 @@ export default define(meta, async () => {
 		.select('count(distinct note.userId)')
 		.where(':tag = ANY(note.tags)', { tag: tag })
 		.andWhere('note.createdAt > :gt', { gt: new Date(Date.now() - (interval * range)) })
+		.cache(60000) // 1 min
 		.getRawOne()
 		.then(x => parseInt(x.count, 10))
 	));

src/server/api/endpoints/meta.ts

@@ -94,7 +94,7 @@ export const meta = {
 export default define(meta, async (ps, me) => {
 	const instance = await fetchMeta(true);
 
-	const emojis = await Emojis.find({ host: null });
+	const emojis = await Emojis.find({ where: { host: null }, cache: 3600000 }); // 1 hour
 
 	const response: any = {
 		maintainerName: instance.maintainerName,

src/server/api/endpoints/stats.ts

@@ -57,10 +57,10 @@ export default define(meta, async () => {
 		driveUsageLocal,
 		driveUsageRemote
 	] = await Promise.all([
-		Notes.count(),
-		Notes.count({ userHost: null }),
-		Users.count(),
-		Users.count({ host: null }),
+		Notes.count({ cache: 3600000 }), // 1 hour
+		Notes.count({ where: { userHost: null }, cache: 3600000 }),
+		Users.count({ cache: 3600000 }),
+		Users.count({ where: { host: null }, cache: 3600000 }),
 		federationChart.getChart('hour', 1).then(chart => chart.instance.total[0]),
 		driveChart.getChart('hour', 1).then(chart => chart.local.totalSize[0]),
 		driveChart.getChart('hour', 1).then(chart => chart.remote.totalSize[0]),