How to get header request in nodejs

Question

Currently developing the elasticsearch API application, I need to get the header request from AJAX call in server side. Ajax request given below.

$.ajax({
          url: 'http://localhost:3002/api/v1/getAutoSuggest/'+elasticsearchIndex+'/'+elasticsearchType,
          dataType: 'JSONP',
          type: 'GET',
          beforeSend: function(xhr){xhr.setRequestHeader('access-control-request-headers', 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9');},
          success: function (data) {

          }
});

In nodejs, I tried to get by using req.headers['x-access-token'] but couldn't get it.

var checkToken = app.use(function(req, res, next) {
var token = req.param.token || req.headers['x-access-token'];

  if (token) {
    jwt.verify(token, config.secret, function(err, decoded) {      
      if (err) {
        return res.json({ success: false, message: 'Failed to authenticate token.' });    
      } else {

   req.decoded = decoded;    
        next();
      }
    });

  } else {
  }
});

And also I have added the following statements in nodejs server side.

 var allowedOrigins = ['http://127.0.0.1:8000', 'http://localhost:8000', 'http://127.0.0.1:9000', 'http://localhost:9000'];
     var origin = req.headers.origin;
     if(allowedOrigins.indexOf(origin) > -1){
       res.setHeader('Access-Control-Allow-Origin', origin);
     }

    res.header('Access-Control-Allow-Methods', 'GET, OPTIONS');
res.header('Access-Control-Allow-Headers', 'access-control-request-headers');
    res.header('Access-Control-Expose-Headers', '*');
    res.header('Access-Control-Allow-Credentials', true);

But getting token in lowercase eyjhbgcioijiuzi1niisinr5cci6ikpxvcj9 .

Thanks in advance!

req.headers['x-access-token'] works for me

sac Dahal
– sac Dahal

2016-12-23 11:48:21 +00:00
Commented Dec 23, 2016 at 11:48 — sac Dahal
– sac Dahal, Commented Dec 23, 2016 at 11:48
what console.log(JSON.stringify(req.headers)) return?

GeekAb
– GeekAb

2016-12-23 11:49:00 +00:00
Commented Dec 23, 2016 at 11:49 — GeekAb
– GeekAb, Commented Dec 23, 2016 at 11:49

Darin Dimitrov · Accepted Answer · 2016-12-23 11:57:38Z

1

You cannot set headers when using JSONP. The reason for that is because when using JSONP for cross domain requests, jquery implements this by injecting a special <script> tag into the DOM in order to load the remote resource. And as you know, when using <script> tags you have no way of specifying custom headers.

An alternative approach to JSONP would be to use CORS. The server will need to support it and explicitly allow the origins and headers that need to be set.

answered Dec 23, 2016 at 11:57

Darin Dimitrov

1.0m276 gold badges3.3k silver badges3k bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to get header request in nodejs

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related