diff --git a/lib/json.ml b/lib/json.ml
index ee91cd6..fc4888a 100644
--- a/lib/json.ml
+++ b/lib/json.ml
@@ -1,3 +1,5 @@
+open Utils
+
 let connection_payload =
   {|
   {
@@ -11,3 +13,9 @@ let connection_payload =
   }
   |}
 ;;
+
+let navigate_payload url = fmt {|
+  {
+    "url": "%s"
+  }
+  |} url
diff --git a/lib/net.ml b/lib/net.ml
index 1ead188..b7b5354 100644
--- a/lib/net.ml
+++ b/lib/net.ml
@@ -1,28 +1,27 @@
 open Cohttp_lwt_unix
 open Utils
 
-let url = "http://127.0.0.1:4444"
+let driver_url = "http://127.0.0.1:4444/session"
 
 let send_post_request url json =
-  let uri = Uri.of_string url in
   let headers = Cohttp.Header.init_with "Content-Type" "application/json" in
   let body = Cohttp_lwt.Body.of_string json in
-  Lwt.bind (Client.post ~headers ~body uri) (fun (_response, body) ->
-      Cohttp_lwt.Body.to_string body)
+  Lwt.bind
+    (Client.post ~headers ~body (Uri.of_string url))
+    (fun (_response, body) -> Cohttp_lwt.Body.to_string body)
 ;;
 
 let send_delete_request url =
-  let uri = Uri.of_string url in
-  Lwt.bind (Client.delete uri) (fun (_response, body) -> Cohttp_lwt.Body.to_string body)
+  Lwt.bind
+    (Client.delete (Uri.of_string url))
+    (fun (_response, body) -> Cohttp_lwt.Body.to_string body)
 ;;
 
-let execute_request url json =
-  let body = send_post_request url json in
-  Lwt_main.run body
-;;
+let execute_request url json = Lwt_main.run (send_post_request url json)
 
+(* Server MUST be started already *)
 let get_session () =
-  let response = execute_request (fmt "%s/session" url) Json.connection_payload in
+  let response = execute_request (fmt "%s" driver_url) Json.connection_payload in
   match Yojson.Safe.from_string response with
   | `Assoc fields ->
     let value = List.assoc "value" fields in
@@ -36,5 +35,9 @@ let get_session () =
 ;;
 
 let close_session id =
-  Lwt_main.run (send_delete_request (fmt "%s/session/%s" url id)) = "{\"value\":null}"
+  Lwt_main.run (send_delete_request (fmt "%s/%s" driver_url id)) = "{\"value\":null}"
+;;
+
+let navigate url session_id =
+  execute_request (fmt "%s/%s/url" driver_url session_id) (Json.navigate_payload url)
 ;;