/ ai-anxieties-audio / node_modules / busboy /

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README.md

Description

A node.js module for parsing incoming HTML form data.

Changes (breaking or otherwise) in v1.0.0 can be found here.

Requirements

Install

npm install busboy

Examples

const http = require('http');

const busboy = require('busboy');

http.createServer((req, res) => {
  if (req.method === 'POST') {
    console.log('POST request');
    const bb = busboy({ headers: req.headers });
    bb.on('file', (name, file, info) => {
      const { filename, encoding, mimeType } = info;
      console.log(
        `File [${name}]: filename: %j, encoding: %j, mimeType: %j`,
        filename,
        encoding,
        mimeType
      );
      file.on('data', (data) => {
        console.log(`File [${name}] got ${data.length} bytes`);
      }).on('close', () => {
        console.log(`File [${name}] done`);
      });
    });
    bb.on('field', (name, val, info) => {
      console.log(`Field [${name}]: value: %j`, val);
    });
    bb.on('close', () => {
      console.log('Done parsing form!');
      res.writeHead(303, { Connection: 'close', Location: '/' });
      res.end();
    });
    req.pipe(bb);
  } else if (req.method === 'GET') {
    res.writeHead(200, { Connection: 'close' });
    res.end(`
      <html>
        <head></head>
        <body>
          <form method="POST" enctype="multipart/form-data">
            <input type="file" name="filefield"><br />
            <input type="text" name="textfield"><br />
            <input type="submit">
          </form>
        </body>
      </html>
    `);
  }
}).listen(8000, () => {
  console.log('Listening for requests');
});

// Example output:
//
// Listening for requests
//   < ... form submitted ... >
// POST request
// File [filefield]: filename: "logo.jpg", encoding: "binary", mime: "image/jpeg"
// File [filefield] got 11912 bytes
// Field [textfield]: value: "testing! :-)"
// File [filefield] done
// Done parsing form!
const { randomFillSync } = require('crypto');
const fs = require('fs');
const http = require('http');
const os = require('os');
const path = require('path');

const busboy = require('busboy');

const random = (() => {
  const buf = Buffer.alloc(16);
  return () => randomFillSync(buf).toString('hex');
})();

http.createServer((req, res) => {
  if (req.method === 'POST') {
    const bb = busboy({ headers: req.headers });
    bb.on('file', (name, file, info) => {
      const saveTo = path.join(os.tmpdir(), `busboy-upload-${random()}`);
      file.pipe(fs.createWriteStream(saveTo));
    });
    bb.on('close', () => {
      res.writeHead(200, { 'Connection': 'close' });
      res.end(`That's all folks!`);
    });
    req.pipe(bb);
    return;
  }
  res.writeHead(404);
  res.end();
}).listen(8000, () => {
  console.log('Listening for requests');
});

API

Exports

busboy exports a single function:

( function )(< _object_ >config) - Creates and returns a new Writable form parser stream.

This function can throw exceptions if there is something wrong with the values in config. For example, if the Content-Type in headers is missing entirely, is not a supported type, or is missing the boundary for 'multipart/form-data' requests.

(Special) Parser stream events

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