Nodejs snippet to get presigned url for uploading and viewwing a object in AWS S3 bucket.

s3-manager.js

// Nodejs snippet to get presigned url for uploading and viewwing a object in AWS S3 bucket.

import {
  GetObjectCommand,
  PutObjectCommand,
  S3Client,
} from "@aws-sdk/client-s3";
import {
  getSignedUrl,
  S3RequestPresigner,
} from "@aws-sdk/s3-request-presigner";

const client = new S3Client({
  region: "us-east-1",
  //   apiVersion: "2006-03-01",
  //   signatureVersion: "v4",
  credentials: {
    accessKeyId: "YOUR_ACCESS_KEY_ID",
    secretAccessKey: "YOUR_SECRET_ACCESS_KEY",
  },
});

// * Create Presigned URL for getting object
const createGetPresignedUrl = ({ bucket, key }) => {
  const command = new GetObjectCommand({ Bucket: bucket, Key: key });
  return getSignedUrl(client, command, { expiresIn: 3600 });
};

// * Create Presigned URL for putting object (uploading)
const createPutPresignedUrl = ({ bucket, key, type }) => {
  const command = new PutObjectCommand({
    Bucket: bucket,
    Key: key,
    ContentType: type,
  });
  return getSignedUrl(client, command, { expiresIn: 3600 });
};

async function main() {
    const clientUrl = await createPresignedUrlWithClient({
      region: "us-east-1",
      bucket: "YOUR_BKT_NAME",
      key: "OBJECT_PATH",
    });

  const clientUrl = await createGetPresignedUrl({
    bucket: "YOUR_BKT_NAME",
    key: "KEY",
    type: "FILE_TYPE",
  });

  console.log("Client URL: ", clientUrl);
}

main();