Put header information of request into the Body of the request?

Anjna_Bhati · April 4, 2016, 11:13am

HI,

I want to add the header information to the body of the data/request that I make to the api.
For example I want to pick the source IP of the request and add that to the Body of the request with the other fields that I am posting as a Json request. So that now my request data will contain the ip of the request source.

Regards,
Anjna Bhati

Martin · April 4, 2016, 11:26am

Hi Anjna,

You would need to do that with some JS middleware, as the headers are not exposed to the body template transformer yet.

Cheers,
Martin

Anjna_Bhati · April 4, 2016, 11:49am

Hi Martin,
I did try with JS MIddleware but the header does not contain the source ip.
Is there any configuration missing?

Martin · April 4, 2016, 12:09pm

Ah, I don’t think the IP is sent by default as a header, you might want to check for an X-Forwarded-For header if you are behind a load balancer, Tyk uses the raw TCP Remote Address from the request or the XFF when it grabs the ip:

github.com

TykTechnologies/tyk/blob/2f7be404dfe11108a85b5ce8172a971460ef0d8e/util_http_helpers.go#L12


      
          
          
import (
          	"bytes"
          	"github.com/gorilla/context"
          	"io"
          	"io/ioutil"
          	"net/http"
          	"strings"
          )
          
          
func GetIPFromRequest(r *http.Request) string {
          	remoteIPString := r.RemoteAddr
          	forwarded := r.Header.Get("X-Forwarded-For")
          	if forwarded != "" {
          		ips := strings.Split(forwarded, ", ")
          		remoteIPString = ips[0]
          		log.Debug("X-Forwarded-For set, remote IP: ", remoteIPString)
          	}
          
          
	//Split off port
          	ipPort := strings.Split(remoteIPString, ":")

If you are running Tyk behind something like NginX or HAProxy you might be able to add it in.

Anjna_Bhati · April 4, 2016, 12:43pm

So I can assume that tyk has to run behind a load balancer to get the source ip.
Thank you

Regards,
Anjna Bhati