node.js＆Express /正文解析器

Question

I write server side application with express & node.js.

I have the next:

app.configure(function () {
    app.use(express.bodyParser());
});

Everything works good, but:

1. As I understand, this method was deprecated.

2. The next method doesn't work well. It writes some random chars instead of writing the correct chars:

    app.post('/randomWrite', function (req, res) { var fileName = req.body.name; var contentLength = parseInt(req.files.file._writeStream.bytesWritten); var start = parseInt(req.body.chunk) * 102400; var buffer = new Buffer(parseInt(req.files.file._writeStream.bytesWritten)); fs.open(req.files.file.path, 'r', function (status, fd) { if (fd == null) { console.log("Can't open the file with the fd"); return; } fileNameLocation = "./" + fileName; fs.open(fileNameLocation, 'w+', function (err, fd1) { fs.read(fd, buffer, 0, contentLength, start, function (err, bytesRead, buffer1) { if (err) console.log("ERROR: " + err); fs.write(fd1, buffer1, 0, contentLength, start, function (err, bytesWrite, buffer) { if (req.body.chunk == req.body.chunks - 1) { fs.close(fd, function (err) { }) fs.close(fd1, function (err) { }) FileServer.prototype.returnResCodeWithId(res, 200, id); } else { fs.close(fd, function (err) { }) fs.close(fd1, function (err) { }) FileServer.prototype.returnResCode(res, 200); } }) }) }) }) 

Instead of writing in the correct offset, it seems that something get wrong and some text from the middleware (bodyParser) is written.

How can i change the express.bodyParser()? It will fix my problem with the writing?

Answer 1

You need to use the Body-parser middleware.

You can install it with

npm install body-parser

and include it with Express using

var bodyparser = require('body-parser');
app.use(bodyparser());

If you want file uploads too, then have a look at multer .