* Add query caching for lthe long running leaderboard queries -- 2hr ttl

app/api/package.json

@@ -25,32 +25,34 @@
     "test:e2e": "jest --config ./test/jest-e2e.json"
   },
   "dependencies": {
-    "@nestjs/common": "^7.4.4",
-    "@nestjs/config": "^0.5.0",
-    "@nestjs/core": "^7.4.4",
-    "@nestjs/mapped-types": "^0.1.0",
-    "@nestjs/platform-express": "^7.4.4",
-    "@nestjs/swagger": "^4.5.12",
-    "@nestjs/typeorm": "^7.1.4",
+    "@nestjs/common": "^8.0.7",
+    "@nestjs/config": "^1.0.1",
+    "@nestjs/core": "^8.0.7",
+    "@nestjs/mapped-types": "^1.0.0",
+    "@nestjs/platform-express": "^8.0.7",
+    "@nestjs/swagger": "^5.0.9",
+    "@nestjs/typeorm": "^8.0.2",
+    "cache-manager": "^3.4.4",
     "class-transformer": "^0.3.1",
     "class-validator": "^0.12.2",
-    "joi": "^17.2.1",
-    "pg": "^8.3.2",
+    "joi": "^17.4.2",
+    "pg": "^8.7.1",
     "reflect-metadata": "^0.1.13",
     "rimraf": "^3.0.2",
-    "rxjs": "^6.6.3",
-    "swagger-ui-express": "^4.1.4",
-    "typeorm": "^0.2.26"
+    "rxjs": "^7.3.0",
+    "swagger-ui-express": "^4.1.6",
+    "typeorm": "^0.2.37"
   },
   "devDependencies": {
-    "@nestjs/cli": "^7.0.0",
-    "@nestjs/schematics": "^7.1.2",
-    "@nestjs/testing": "^7.4.4",
-    "@types/express": "^4.17.8",
-    "@types/hapi__joi": "^17.1.4",
-    "@types/jest": "^26.0.14",
-    "@types/node": "^14.11.1",
-    "@types/supertest": "^2.0.8",
+    "@nestjs/cli": "^8.1.1",
+    "@nestjs/schematics": "^8.0.3",
+    "@nestjs/testing": "^8.0.7",
+    "@types/cache-manager": "^3.4.2",
+    "@types/express": "^4.17.13",
+    "@types/hapi__joi": "^17.1.7",
+    "@types/jest": "^27.0.2",
+    "@types/node": "^16.10.1",
+    "@types/supertest": "^2.0.11",
     "@typescript-eslint/eslint-plugin": "^3.10.1",
     "@typescript-eslint/parser": "^3.10.1",
     "eslint": "^7.9.0",
@@ -63,7 +65,7 @@
     "ts-loader": "^8.0.3",
     "ts-node": "^9.0.0",
     "tsconfig-paths": "^3.9.0",
-    "typescript": "^4.0.2"
+    "typescript": "^4.4.3"
   },
   "jest": {
     "moduleFileExtensions": [

app/api/src/players/players.controller.ts

@@ -1,4 +1,5 @@
-import { Controller, Get, Query, Param } from '@nestjs/common';
+import { Controller, Get, Query, Param, Inject, CACHE_MANAGER } from '@nestjs/common';
+import { Cache } from 'cache-manager';
 import { ApiOperation } from '@nestjs/swagger';
 
 import { PlayersService } from './players.service';
@@ -7,10 +8,14 @@ import {
 	TopAccuracyQueryDto,
 	TopWinsQueryDto,
 } from '../common/dto/top-players-query.dto';
+import { cache } from 'joi';
 
 @Controller('players')
 export class PlayersController {
-	constructor(private readonly playerService: PlayersService) {}
+	constructor(
+		private readonly playerService: PlayersService,
+		@Inject(CACHE_MANAGER) private cacheManager: Cache
+	) {}
 
 	// /players
 	@Get()
@@ -25,7 +30,7 @@ export class PlayersController {
 		tags: ['Player', 'Leaderboard'],
 		summary: 'Return a leaderboard of players for a specific accuracy stat',
 	})
-	findTopAccuracy(@Query() topPlayersQuery: TopAccuracyQueryDto) {
+	async findTopAccuracy(@Query() topPlayersQuery: TopAccuracyQueryDto) {
 		const {
 			stat,
 			gameType,
@@ -34,7 +39,12 @@ export class PlayersController {
 			limit = 10,
 			timePeriod,
 		} = topPlayersQuery;
-		return this.playerService.findTopAccuracy({
+
+		const cacheKey =`topacc_${stat}_${gameType}_${minGames}_${minShots}_${limit}_${timePeriod}`;
+		const queryCache = await this.cacheManager.get(cacheKey);
+
+		if(!queryCache){
+			const results = await this.playerService.findTopAccuracy({
 				stat,
 				gameType,
 				minGames,
@@ -42,19 +52,41 @@ export class PlayersController {
 				limit,
 				timePeriod,
 			});
+			
+			await this.cacheManager.set(cacheKey, results, { ttl: 3600 * 2 }); // 2 hours
+			return results
 		}
 		
+		return queryCache
+	}
+
+
 	@Get('top/wins')
 	@ApiOperation({
 		tags: ['Player', 'Leaderboard'],
 		summary: 'Return a leaderboard of players for win percentage',
 	})
-	findTopWins(@Query() topPlayersQuery: TopWinsQueryDto) {
+	async findTopWins(@Query() topPlayersQuery: TopWinsQueryDto) {
 		const { minGames = 100, limit = 10, timePeriod } = topPlayersQuery;
-		return this.playerService.findTopWins({
+
+		const cacheKey =`topwins_${minGames}_${limit}_${timePeriod}`;
+		const queryCache = await this.cacheManager.get(cacheKey);
+
+		/*
+			If we don't have a cache ready, lets make one so the next hit is super fast
+			Cache ttl is in seconds
+		*/
+		if(!queryCache){
+			const results = await this.playerService.findTopWins({
 				minGames,
 				limit,
 				timePeriod,
 			});
+
+			await this.cacheManager.set(cacheKey, results, { ttl: 3600 * 2 }); // 2 hours
+			return results
+		}
+
+		return queryCache
 	}
 }

app/api/src/players/players.module.ts

@@ -1,4 +1,4 @@
-import { Module } from '@nestjs/common';
+import { Module, CacheModule } from '@nestjs/common';
 import { ConfigModule } from '@nestjs/config';
 import { TypeOrmModule } from '@nestjs/typeorm';
 
@@ -9,7 +9,11 @@ import { Players } from './entities/Players';
 import { GameDetail } from '../game/entities/GameDetail';
 
 @Module({
-	imports: [TypeOrmModule.forFeature([Players, GameDetail]), ConfigModule],
+	imports: [
+		CacheModule.register(),
+		TypeOrmModule.forFeature([Players, GameDetail]),
+		ConfigModule
+	],
 	providers: [PlayersService],
 	controllers: [PlayersController],
 })