Form/file uploads with hapi.js

README.md

Demo of multipart form/file uploading with hapi.js.

Usage

npm install
npm run setup
npm run server

Then ...

npm run test

... or try:

curl --form file=@data.csv    \
     --form firstName=Melvin  \
     --form lastName=Mooney   \
     http://localhost:8080/submit

See also

Other multipart/form-data demos:

• hapi - serving various upload clients
• http - sans framework
• express

data.csv

package.json

{
  "name": "file-upload-demo",
  "version": "0.0.0",
  "description": "multipart form/file upload demo with hapi.js",
  "main": "server.js",
  "scripts": {
    "setup": "[ -d uploads ] || mkdir uploads",
    "test": "curl --form file=@data.csv --form user=Jones http://localhost:8080/submit",
    "server": "node server.js"
  },
  "keywords": [
    "multipart",
    "upload",
    "file",
    "form",
    "hapi",
    "demo"
  ],
  "author": "J. Voigt",
  "license": "BSD-2-Clause",
  "dependencies": {
    "hapi": "^17.5.4"
  }
}

server.js

const fs = require('fs');
const Hapi = require('hapi');

const server = Hapi.server({
    host: 'localhost', 
    port: Number(process.argv[2] || 8080)
});

server.route({
    method: 'POST',
    path: '/submit',
    handler: (request, h) => {

        const data = request.payload;
        if (data.file) {
            const name = data.file.hapi.filename;
            const path = __dirname + "/uploads/" + name;
            const file = fs.createWriteStream(path);

            file.on('error', (err) => console.error(err));

            data.file.pipe(file);

            data.file.on('end', (err) => { 
                const ret = {
                    filename: data.file.hapi.filename,
                    headers: data.file.hapi.headers
                }
                return JSON.stringify(ret);
            })
        }
        return 'ok';
    },
    options: {
        payload: {
            output: 'stream',
            parse: true,
            allow: 'multipart/form-data'
        }
    }
});

const init = async () => {

        await server.start();
        console.log(`Server running at: ${server.info.uri}`);
};

init();

Many thanks.

great thank you!

how to track progress of the upload? bytes loaded / bytes total

thks

Yeah, thanks for this. Nice and concise.

thank you for this!

Thanks !
Would you give you advice about iterating through a FileList object and write each one of them async ?

I finally get how to to receive multiple text and files here the code:

const Home = {
files: {
relativeTo: Path.join(__dirname, '../static/src')
},
handler: (req, res) => {
var data = req.payload;
for(var i = 0; i < Object.keys(data).length; i++){
if (data.hasOwnProperty('file-'+i)){
var g = "file-"+i;
var name = data[g].hapi.filename;
console.log(name);
var path = Path.join(__dirname, '../uploadFiles/'+name);
var file = Fs.createWriteStream(path);

       file.on('error', function (err){
           console.error(err);
       });
       data[g].pipe(file);

       data[g].on('end', function (err){

           setTimeout(function(){
               var ret = {
               filename: data[g].hapi.filename,
               headers: data[g].hapi.headers
           }
           res(JSON.stringify(ret));
           }, 200);
       })
       }

   }

},

payload: {
    output : 'stream',
    parse: true,
    uploads: 'up_files',
    timeout: 30034,
    // allow: 'multipart/form-data',
    failAction: 'log',
    maxBytes: 3000000
}

};

//Root Loading
const Root = {
files: {
relativeTo: Path.join(__dirname, '../static/src')
},
handler: (req, res) => {
res.file('index.html');
}
}

module.exports = [
{ method: 'GET', path:'/{static*}', config: Static },
{ method: 'POST', path: '/home', config: Home },
{ method: 'GET', path: '/', config: Root }
]

Thanks!

Works like a charm. Thanks.

Hi,

Thanks for the code. I have a question though.

Instead of using data.file.on('end',...) as the trigger to send response, wouldn't it be better to use file.on('finish',...) as the trigger? Would it ensure that the buffer stream has indeed been written into the file before a response is sent?

Could you have time to discuss this?

Thanks

so uploading files in haps works without any external module (as in exporess) ?

Thank you for the code above - works fine with the curl command when I test. However, when I try to use it from an HTML file the server just hangs? /submit is the url and testcsvfile.csv is the file I am trying to upload. Can I not simply use an HTML form as below?

<form action="/submit" method="post" enctype="multipart/form-data">
  <input type="file" name="testcsvfile">
  <input type="submit" value="upload">
</form>

I also tried making the call using postman which received the following response

{
    "statusCode": 415,
    "error": "Unsupported Media Type",
    "message": "Unsupported Media Type"
}

The file is a simple csv text file? Any ideas would be helpful?

I'm using content-type as application/octet-stream and data.file is undefined. Any ideas? I'm using application/octet-stream as the service i'm going to pass the file to needs that, not quite sure if having application/octet-stream is required in the hapi path?

It is very helping!

if the file size is less then 15 kb its not working

most of these old samples wont compile anymore.

Thank you so much the demo. It really helped 👍

updated code

	{
		method: "POST",
		path: "/upload",
		handler: clientController.postClientFile,
		config: {
			description: "Home",
			auth: false,
			payload: {
				maxBytes: 209715200,
				parse: true,
				allow: "multipart/form-data",
				multipart: { output: "stream" },
			},
		},
	},