Add bull and caching

src/minio/minio.service.ts

@@ -1,4 +1,6 @@
-import { Injectable } from '@nestjs/common';
+import { CACHE_MANAGER } from '@nestjs/cache-manager';
+import { Cache } from 'cache-manager';
+import { Inject, Injectable } from '@nestjs/common';
 import { ConfigService } from '@nestjs/config';
 import { Client, ItemBucketMetadata, UploadedObjectInfo } from 'minio';
 
@@ -7,7 +9,10 @@ export class MinioService {
   private readonly client: Client;
   public readonly defaultBucketName: string;
 
-  constructor(private readonly configService: ConfigService) {
+  constructor(
+    private readonly configService: ConfigService,
+    @Inject(CACHE_MANAGER) private cacheManager: Cache,
+  ) {
     this.client = new Client({
       endPoint: this.configService.get<string>('S3_ENDPOINT', 's3.hooli.co'),
       port: this.configService.get<number>('S3_PORT', 443),
@@ -46,6 +51,21 @@ export class MinioService {
     );
   }
 
+  public async getCachedBuffer(
+    bucketName: string,
+    objectName: string,
+    cacheTtl: number = 0.1,
+  ): Promise<Buffer> {
+    const cacheKey = `${bucketName}/${objectName}`;
+    const cachedValue = await this.cacheManager.get<Buffer>(cacheKey);
+    if (cachedValue) {
+      return Buffer.from(cachedValue);
+    }
+    const object = await this.getBuffer(bucketName, objectName);
+    this.cacheManager.set(cacheKey, object, cacheTtl);
+    return object;
+  }
+
   public async getBuffer(
     bucketName: string,
     objectName: string,