feat: enhance API and query handling with Redis caching; add QueryGuard for query validation; refactor services to utilize RedisClient for improved performance

src/databaseManager/database.manager.module.ts

@@ -9,12 +9,14 @@ import { DatabaseManagerController } from "./database/database.manager.controlle
 import { DatabaseManagerService } from "./database/database.manager.service";
 import { DatabaseNodeService } from "./databaseNode/database.node.service";
 import { ApiModule } from "src/api/api.module";
+import { RedisModule } from "src/redis/redis.module";
 
 @Module({
   imports: [
     forwardRef(() => ProjectModule),
     forwardRef(() => MigrationModule),
     forwardRef(() => ApiModule),
+    forwardRef(() => RedisModule),
     TypeOrmModule.forFeature([Database, DatabaseNode, Project]),
   ],
   controllers: [DatabaseManagerController],

src/databaseManager/database/database.manager.service.ts

@@ -1,4 +1,4 @@
-import { Injectable } from "@nestjs/common";
+import { Inject, Injectable } from "@nestjs/common";
 import { InjectRepository } from "@nestjs/typeorm";
 import { Database } from "../entities/database.entity";
 import { Repository } from "typeorm";
@@ -6,6 +6,7 @@ import { ProjectService } from "src/project/project.service";
 import { DatabaseEncryptionService } from "../database.encryption.service";
 import { DatabaseNodeService } from "../databaseNode/database.node.service";
 import * as mysql from "mysql2/promise";
+import { RedisClient } from "src/redis/redis.service";
 
 @Injectable()
 export class DatabaseManagerService extends DatabaseEncryptionService {
@@ -13,7 +14,9 @@ export class DatabaseManagerService extends DatabaseEncryptionService {
     @InjectRepository(Database)
     private databaseRepository: Repository<Database>,
     private readonly projectService: ProjectService,
-    private readonly databaseNodeService: DatabaseNodeService
+    private readonly databaseNodeService: DatabaseNodeService,
+    @Inject(RedisClient)
+    private readonly redisClient: RedisClient
   ) {
     super();
   }
@@ -64,6 +67,14 @@ export class DatabaseManagerService extends DatabaseEncryptionService {
       throw new Error("Project not found");
     }
 
+    const cached = await this.redisClient.get(
+      `db_conn_opts_${projectId}_${queryUser}`
+    );
+
+    if (cached) {
+      return cached;
+    }
+
     const database = await this.databaseRepository.findOne({
       where: { project: { id: project.id } },
       relations: ["node"],
@@ -73,7 +84,7 @@ export class DatabaseManagerService extends DatabaseEncryptionService {
       throw new Error("Database not found");
     }
 
-    return {
+    const connectionOptions = {
       host: database.node.host,
       port: database.node.port,
       user: queryUser ? database.q_username : database.c_username,
@@ -82,6 +93,14 @@ export class DatabaseManagerService extends DatabaseEncryptionService {
       idleTimeout: 150e3,
       connectTimeout: 2e3,
     };
+
+    await this.redisClient.set(
+      `db_conn_opts_${projectId}_${queryUser}`,
+      connectionOptions,
+      300
+    );
+
+    return connectionOptions;
   }
 
   async createDatabase(projectId: string): Promise<Database> {