fix: Download file method would break due to missing file destination

* fix: creates files folder if it doesn't exist * generalize logic for folder creation * add more explanation to the downloadFile method --------- Co-authored-by: Antoine Hurard <antoine.reliefapps@gmail.com>

Author: matheus-relief

src/utils/files/downloadFile.ts

@@ -1,6 +1,7 @@
 import { BlobServiceClient } from '@azure/storage-blob';
 import { logger } from '@services/logger.service';
 import config from 'config';
+import fs from 'fs';
 
 /** Azure storage connection string */
 const AZURE_STORAGE_CONNECTION_STRING: string = config.get(
@@ -20,12 +21,22 @@ export const downloadFile = async (
  blobName: string,
  path: string
 ): Promise<void> => {
+ // Azure Blob Storage API : Create the blob client
  const blobServiceClient = BlobServiceClient.fromConnectionString(
  AZURE_STORAGE_CONNECTION_STRING
  );
  const containerClient = blobServiceClient.getContainerClient(containerName);
  const blockBlobClient = containerClient.getBlockBlobClient(blobName);
  try {
+ // If path does not exist, create it
+ const pathArr = path.split('/');
+ pathArr.pop();
+ const pathToFile = pathArr.join('/');
+
+ if (!fs.existsSync(pathToFile))
+ fs.mkdirSync(pathToFile, { recursive: true });
+
+ // Download the file
  await blockBlobClient.downloadToFile(path);
  } catch (err) {
  logger.error(err.message);