Node.js: how to limit the HTTP request size and upload file size?

Question

I\'m using Node.js and express.

I would like to limit the HTTP request size. Let\'s say, if someone sends me a HTTP request more than 2 MB then I stop the request r

Answer 1

Source code of node github :

/* Maximium header size allowed. If the macro is not defined
 * before including this header then the default is used. To
 * change the maximum header size, define the macro in the build
 * environment (e.g. -DHTTP_MAX_HEADER_SIZE=). To remove
 * the effective limit on the size of the header, define the macro
 * to a very large number (e.g. -DHTTP_MAX_HEADER_SIZE=0x7fffffff)
 */
#ifndef HTTP_MAX_HEADER_SIZE
# define HTTP_MAX_HEADER_SIZE (80*1024)
#endif 

So, you need to rebuild node from source to surpass the limit of 80*1024

You can use this with Express 4 to limit request body size/Upload file size, instead of express.json() and express.urlencoded(), you must require the body-parser module and use its json() and urlencoded() methods, if the extended option is not explicitly defined for bodyParser.urlencoded(), it will throw a warning (body-parser deprecated undefined extended: provide extended option).

var bodyParser = require('body-parser');
app.use(bodyParser.json({limit: '50mb'}));
app.use(bodyParser.urlencoded({limit: '50mb', extended: true}));