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 [email protected]    \
     --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 [email protected] --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();

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" },
			},
		},
	},