feat: create index file if it doesn't exist

Author: toledompm

src/bucket/bucketModule.ts

@@ -17,7 +17,7 @@ const bucket = new Bucket(
   imageBucket.namespace,
   imageBucket.name,
 );
-const index = new FileIndex(imageBucket.index.file_path);
+const index = new FileIndex(imageBucket.index.filePath);
 const imageBucketService = new ImageBucketService(bucket, index);
 
 export const bucketModule = {

src/common/config.ts

@@ -40,7 +40,7 @@ export const appConfig = () => ({
     namespace: process.env.IMAGE_BUCKET_NAMESPACE || 'aaaaa',
     name: process.env.IMAGE_BUCKET_NAME || 'some-bucket-name',
     index: {
-      file_path: process.env.IMAGE_INDEX_FILE_PATH || './tmp/index.txt',
+      filePath: process.env.IMAGE_INDEX_FILE_PATH || './tmp/index.txt',
     },
   },
   post: {

src/index/fileIndex.ts

@@ -1,12 +1,15 @@
 import type { IIndex } from '@index/types';
-import { createReadStream } from 'fs';
+import { createReadStream, appendFileSync } from 'fs';
 import { appendFile } from 'fs/promises';
 import split2 from 'split2';
 import { Transform } from 'stream';
 import { pipeline } from 'stream/promises';
 
 export class FileIndex implements IIndex {
-  constructor(private filePath: string) {}
+  constructor(private filePath: string) {
+    // Create file if it doesn't exist
+    appendFileSync(this.filePath, '');
+  }
 
   async get(key: string): Promise<string | null> {
     let indexValue = null;