CODEWITHSUNDEEP
node.jsamazon-web-servicesaws-lambda
Alvin Quezon
Alvin Quezon

Reputation: 1201

AWS Lambda FormData body with File Upload

Hi I am currently looking for library that uses AWS Lambda Proxy Integration service from amazon that would help me parse formdata and send the data using https library using nodejs. A sample code will do as well on how to get the body and the file from the formdata request.

Please someone let me know if there is one. Your help would be much appreciated.

Upvotes: 0

Views: 1329

Answers (1)

Subhashis Pandey
Subhashis Pandey

Reputation: 1538

Try this code, complete the form element as per your need.

HTML form

    <form id="hfrm" method="POST" action="/fileUpload" enctype="multipart/form-data">

    </form>

Use AJAX to submit the code

var form = $('#hfrm').get(0); 
var formData = new FormData(form);
var xhr = new XMLHttpRequest();
xhr.open("POST", "URL");
xhr.send(formData);

The server side code to handle the request, please note there are few places where you must use credentials and names like AWS Region, S3 bucket name etc.

    var xpress          = require('express')
    const fileUpload    = require('express-fileupload');
    const app           = xpress();

    app.use(fileUpload());


    var AWS = require('aws-sdk');

    app.post('/fileUpload', async (req, res) => {

        AWS.config.update({
            accessKeyId: "ACCESS-KEY",
            secretAccesskey: "SECRET-ACCESS-KEY",
            region: "AWS REGION"
        })


        const s3 = new AWS.S3();

        const fileContent  = Buffer.from(req.files.uploadedFileName.data, 'binary');

        const params = {
                Bucket: 'S3 BUKET-NAME',
                Key: "Name of the File",
                Body: fileContent 
        };

        s3.upload(params, function(err, data) {
                if (err) {
                    throw err;
                }
                res.send({
                    "response_code": 200,
                    "response_message": "Success message",
                    "response_data": data
                });
        });

    })

    app.listen(3000, function () {
        console.log('Sample app listening on port 3000!');
    });

Upvotes: 1

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