s3Utils.js

import AWS from 'aws-sdk';
// set your process env

const {
  S3_BUCKET,
  STAGE } = process.env;

const endpoint = 'http://localhost:4572';
// set your config look 
// https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/s3-example-configuring-buckets.html
const s3Config = { endpoint };

export default class S3Util {

  /**
   *
   * @param {Bucket} Bucket defines the bucket for every call for s3
   */
  constructor(Bucket = S3_BUCKET) {
    this.params = {
      Bucket
    };

    this.s3 = new AWS.S3(s3Config);
  }

  /**
 *
 * @param {params} defines the params for s3 call like BUcket, Key, etc.
 */
  headObject = (params) => {

    return this.s3.headObject({ ...this.params, ...params }).promise();
  }

  /**
*
* @param {params} defines the params for s3 call like BUcket, Key, etc.
*/
  copyObject = (params) => {

    return this.s3.copyObject({ ...this.params, ...params }).promise();
  }
  /**
 *
 * @param {params} defines the params for s3 call like BUcket, Key, etc.
 * @param {operation} got as default getObject, you can set the operation you need
 */
  getSignedUrl = (params, operation = 'getObject') => {

    return this.s3.getSignedUrl(operation, { ...this.params, ...params });
  }
  /**
 *
 * @param {params} defines the params for s3 call like BUcket, Key, etc.
 */
  createPresignedPost = (params) => {

    return this.s3.createPresignedPost({ ...this.params, ...params });
  }
  /**
 *
 * @param {params} defines the params for s3 call like BUcket, Key, etc.
 */
  getTaggingObjects = async (params) => {

    return this.s3.getObjectTagging({ ...this.params, ...params }).promise();
  }
  /**
 *
 * @param {params} defines the params for s3 call like BUcket, Key, etc.
 */
  deleteObject = async (params) => {

    return this.s3.deleteObject({ ...this.params, ...params }).promise();
  }

}