How to set content type globally in node.js (express)

content-type, express, javascript, node.js

Solution

Try this for Express 4.0 :

// this middleware will be executed for every request to the app
app.use(function (req, res, next) {
  res.header("Content-Type",'application/json');
  next();
});

Problem

I might be wrong but I wasn't able to find this in any documentation. I am trying to set content type globally for any response and did it like: ``` // Set content type GLOBALLY for any response. app.use(function (req, res, next) { res.contentType('application/json'); next(); }); ``` before defining my routes. ``` // Users REST methods. app.post('/api/v1/login', auth.willAuthenticateLocal, users.login); app.get('/api/v1/logout', auth.isAuthenticated, users.logout); app.get('/api/v1/users/:username', auth.isAuthenticated, users.get); ``` For some reason this doesn't work. Do you know what I am doing wrong? Setting it in each method separately, works but I want it globally...

Original source