Upload File to S3 from URL (Firebase Functions / 2020)

gistfile1.txt

const functions = require('firebase-functions');
const AWS = require('aws-sdk');
var https = require('https');
const cors = require('cors')({origin: true});

AWS_ACCESS_KEY = "aws-access-key-goes-here";
AWS_SECRET_KEY = "aws-secret-key-goes-here";
BUCKET_NAME = "bucket-name-goes-here";

const s3 = new AWS.S3({
    accessKeyId: AWS_ACCESS_KEY,
    secretAccessKey: AWS_SECRET_KEY
});

exports.main = functions.https.onRequest((req, res) => {

    cors(req, res, () => {
      
        if(req.method === 'POST') {
            data = req.body;
            
            if(
                data.hasOwnProperty('url') &&
                data.hasOwnProperty('s3_path')
            ) {
                
                url = data['url'].toString().replace("http://", "https://");
                s3_path = data['s3_path'].toString();
                    
                https.get(url, (response) => {
    
                    const params = {
                        Bucket: BUCKET_NAME,
                        Key: s3_path,
                        Body: response
                    };
                
                    s3.upload(params, (err, data) => {
                        if (err) {
                            res.send(JSON.stringify({
                                'success': false,
                                'message': 'upload_failed'
                            }));
                        }
    
                        res.send(JSON.stringify({
                            'success': true,
                            'message': 'file_successfully_uploaded'
                        }));
                    });
            
                });
                
            } else {
    
                res.send(JSON.stringify({
                    'success': false,
                    'message': 'an_error_occured'
                }));
    
            }
    
        } else {
            res.status(204).send('');
        }

    })

});