This query is quite similar to another one on Stack Overflow regarding how to disable Express BodyParser for file uploads in Node.js. The solution provided there was for Express3, but when tested with the updated Express 4, it didn't work as expected.
In my Node.js + Express web application, I'm utilizing the BodyParser library to parse post parameters. However, I now require more control over multipart form-data POST requests as they are received - specifically, I need to stream the input directly to another server without having to download the whole file first.
All file uploads are currently being parsed automatically and made available using "request.files" before reaching any of my functions.
Is there a way for me to disable BodyParser only for multipart formdata posts without disabling it for other types of requests?
The structure of my app.js file involves defining an authentication route that doesn't expect files, just a token (POST parameter). There's also an upload route that accepts both files and POST parameters via form-data. This route is accessed only after authentication. Therefore, the issue arises where I want to disallow form-data in the authenticated route but allow it in the upload path. Essentially, I need BodyParser to function in the auth route while using Multer (another library) in the upload path to handle file parsing. As my real application has many more routes, I aim to code this efficiently with minimal redundancy.
var express = require('express');
var app = express();
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({
extended: true
}));
var route_auth = require('./routes/auth');
app.use('/api/post/*', route_auth);
var route_upload = require('./routes/post/upload');
app.use('/api/post/upload', route_upload );
app.listen(3000, function() {
console.log('Server listening on port 3000!')
});
The auth route implementation resembles the following:
router.post("/", function(req, res, next) {
if(everythingiscool){
return next()
}
next(err);
});
Meanwhile, the upload route is structured as shown below:
var express = require('express');
var router = express.Router();
var multer = require('multer')
var upload = multer({ dest: 'uploads/' });
router.post("/", upload.single('avatar'), function(req, res, next) {
//work with req.file
});