HTTP requests not working on aws ec2 - http

Question

I am building an app in node.js and I’m using AWS EC2 to host it. However, my HTTP requests are not working.
My app is split into two repositories: app-ui and app-server. app-server contains all of my server side code/API’s. In app-ui, I am making simple POST requests such as:
$.ajax({
type: "POST",
url: "http://ec2-xx-xxx-xx/api/users",
success: function(data) {
console.log(data);
},
error: function(a) {
console.log(a);
}
});
However, I keep getting the net::ERR_CONNECTION_TIMED_OUT error.
Does anyone know what might be happening?

Answer 1

Add an inbound rule for the security group attached to your server for the specific port you're using.

Answer 2

I'm having the same issue this is because the amazon servers were down today, but take a look on your server to see if it is working in my case:
/etc/init.d/apache2 status
Response:
Active: active (running) since Wed 2017-03-01 02:21:53 UTC; 2h 3min ago
Docs: man:systemd-sysv-generator(8)
Apparently the S3 was one of the services down and also the routing system, if your server was located on AWS EST side you will find this issue, this affected several apps like HockeyApp and Trello
Take a look on the current status: status.aws.amazon.com
Of course assuming that you have the security groups, the elastic or static ip's set and configured and that you see this issue on all your site and not just on your API

Answer 3

I was struggling with the same situation. I managed it. Go to AWS -> login -> ec2 -> select the options in the left sidebar "security and groups". then select your default instance on the right side that is listed in the table then clicked the action button on the top of the table. that will show the inbound menu.
there you click the "add rule" button. there the type is "custom TCP" then you give port 8080 or whatever you prepare. then save it.
Now go ahead with postman it will work. enjoy your work. !!!!