s3-sdk-lite/index.js

Single line code to upload/get files from S3-Bucket AWS in a simple and easy way.

/* Sahil Kalaigar */
require('dotenv').config()
const AWS = require('aws-sdk');
AWS.config.update({
    "accessKeyId":process.env.accessKeyId,
    "secretAccessKey":process.env.secretAccessKey,
    "region":process.env.region
});
const s3Bucket = new AWS.S3( { params: {Bucket: process.env.bucketName} } );

async function fileUploadViaBase64(file_path,base64string)
{
    try
    {
        buf = Buffer.from(base64string.replace(/^data:image\/\w+;base64,/, ""),'base64')
        var data = {
            Key: file_path, 
            Body: buf,
            ACL: 'public-read',
            ContentEncoding: 'base64',
            ContentType: 'image/jpeg'
        };
        return await s3Bucket.putObject(data).promise();
    }catch(err)
    {
        return err;
    }
}

async function deleteKey(file_path)
{
    try
    {
        const params = { Key: file_path };
        return await s3Bucket.deleteObject(params).promise();
    }catch(err)
    {
        return err;
    }
}

async function videoUploadViaBase64(file_path,base64string)
{
    try
    {
        buf = Buffer.from(base64string.replace(/^data:mp4\/\w+;base64,/, ""),'base64')
        var data = {
            Key: file_path, 
            Body: buf,
            ACL: 'public-read',
            ContentEncoding: 'base64',
            ContentType: 'mp4'
        };
        return await s3Bucket.putObject(data).promise();
    }catch(err)
    {
        return err;
    }
}

async function getFiles(key)
{
    try
    {
    var params = { 
        Delimiter: '/',
        Prefix: key
       }
    return await s3Bucket.listObjects(params).promise();
    }catch(err)
    {
        return err;
    }
}

async function multipartFileUpload(file_path,buffer)
{
    try
    {
        const params = {
            ACL: "public-read",
            Body: buffer,
            Key: file_path,
            ContentType: 'jpg',
        };
        return await s3Bucket.upload(params).promise();
    }catch(err)
    {
        return err;
    }
}

module.exports={
    fileUploadViaBase64,
    getFiles,
    videoUploadViaBase64,
    multipartFileUpload,
    deleteKey
}