Forwarding http to https in node.js express app using EBS & ELB environment

edit:my original answer below is for express 3.x, for 4.x you can get a string http or https in req.protocol, thx @BrandonClark

use req.get, not req.headers. Note that POST requests and all other non-GET will not see this middleware.It's also possible that Express does not carry the x-forwarded-proto header across when you redirect. You may need to set it yourself.

app.get('*', function(req, res, next) {//http://docs.aws.amazon.com/ElasticLoadBalancing/latest/DeveloperGuide/TerminologyandKeyConcepts.html#x-forwarded-proto    if (req.get('x-forwarded-proto') != "https") {        res.set('x-forwarded-proto', 'https');        res.redirect('https://' + req.get('host') + req.url);    } else {        next();         }});

Another way to force https:

function ensureSecure(req, res, next){  if(req.secure){    // OK, continue    return next();  };  res.redirect('https://'+req.host+req.url); // handle port numbers if non 443};app.all('*', ensureSecure);

You can edit the nginx config file in the EC2 instance. SSH to ec2 instance and follow the following steps

1. go to /etc/nginx/conf.d
2. open 00_elastic_beanstalk_proxy.confsudo vi 00_elastic_beanstalk_proxy.conf

3. put

   location / { if ($http_x_forwarded_proto != 'https') { rewrite ^ https://$host$request_uri? permanent; } … }

4. reload nginx sudo /usr/sbin/nginx -s reload