aws ec2 getaddrinfo ENOTFOUND error code

Question

My aim is to get the instanceId when my script is started. (Cause I want to connect my webserver as backend with the aws elb. This even works when I hardcode the id) So now I try to code a function wich gives me the id.

So what I know is that I need the AWS.metadataService but I don't know how to use it. I found this documentation (metaDataService) an command-line tool. I guess I need to combine it like this:

var meta  = new AWS.MetadataService();

meta.request("http://169.254.169.254/latest/meta-data/", function(err, data){
    if(err){
        console.log(err);
    }
    console.log(data);
});

But it produces this error:

{ [Error: getaddrinfo ENOTFOUND 169.254.169.254http 169.254.169.254http:80]
  code: 'ENOTFOUND',
  errno: 'ENOTFOUND',
  syscall: 'getaddrinfo',
  hostname: '169.254.169.254http',
  host: '169.254.169.254http',
  port: 80 }

Any ideas what could fix this? Or at least what causes this error.

Answer 1

Hope it helps.

var meta  = new AWS.MetadataService({
   host: '169.254.169.254'
});

meta.request('/latest/meta-data/', function(err, data){
   if(err){
      console.log(err);
   }
   console.log(data);
});