Skip to main content

How to upload files to S3

1. Copy paste the lines into .env file.​

S3_SECRETE_KEY= (On slack)
S3_ACCESS_KEY= (On slack)
BUCKET=onboarding-visa

2. Import the upload function from the s3.js file.​

import { upload } from "../utils/s3.js";

3. Use upload.single('fieldName') to upload a single file to S3.​

  • fieldName should be the name of the input in the front-end form.
  • fieldName will also be the folder where the file will be stored in the S3 bucket.
  • Example: if fieldName is 'visaDoc', the file will be stored in the visaDoc folder in the S3 bucket.
visaRouter.post('/visa-doc', upload.single('visaDoc'), uploadOptVisa);

4. To handle files in S3:​

  • Import s3 from the AWS SDK.

  • Write a command (e.g., ListObjectsCommand for retrieving all files).

  • Use s3.send() to execute the command.

  • Reference: AWS SDK

const command = new ListObjectsCommand({
  Bucket: process.env.BUCKET,
  Prefix: 'visaDoc/',
  // Delimiter: '/'
});

let result = await s3.send(command);