diff --git a/src/util.rs b/src/util.rs
index 6542690..a3f229e 100644
--- a/src/util.rs
+++ b/src/util.rs
@@ -1,17 +1,78 @@
-use log::info;
+use log::error;
 
-use crate::structs::Marker;
+use crate::structs::{LoginInfo, LoginPayload, Marker, MarkerPayload};
 
 pub fn get_uuid() -> String {
     use uuid::Uuid;
 
-    Uuid::new_v4().to_string()
+    let id = Uuid::new_v4().to_string();
+
+    return id
 }
 
-pub async fn post_marker(marker: Marker) -> String {
-    let placeholder = format!("{} - {}", marker.uid, marker.name);
-
-    info!("{}", placeholder);
-
-    return placeholder
+pub fn parse_login_to_payload(login_payload: LoginPayload) -> LoginInfo {
+    return LoginInfo {
+        username: login_payload.username.to_owned(),
+        password: login_payload.password.to_owned()
+    }
 }
+
+pub fn parse_marker_to_payload(marker: Marker) -> MarkerPayload {
+    return MarkerPayload {
+        uid: marker.uid,
+        longitude: marker.longitude,
+        latitude: marker.latitude,
+        name: marker.name,
+        r#type: marker.r#type,
+        course: marker.course,
+        speed: marker.speed,
+        hae: marker.hae
+    }
+}
+
+pub fn blocking_fetch_auth_token(payload: LoginInfo, api_address: String) -> String {
+    let parsed_address = api_address + "/api/login?include_auth_token";
+
+    let request_body = serde_json::to_string(&payload).unwrap();
+    let client = reqwest::blocking::Client::new();
+    let response = client
+        .post(&parsed_address)
+        .body(request_body)
+        .header("Content-Type", "application/json")
+        .send();
+
+    match response {
+        Ok(result) => {
+            let response_body: Result<serde_json::Value, _> =
+                serde_json::from_str(&result.text().unwrap());
+
+            match response_body {
+                Ok(result) => {
+                    let csrf_token = result["response"]["user"]["authentication_token"].as_str();
+
+                    match csrf_token {
+                        Some(result) => {
+                            return result.to_string();
+                        }
+                        None => {
+                            let message = "ERROR: Provided JSON doesnt match a valid Authentication Token";
+                            error!("{}", message);
+
+                            return message.to_string();
+                        }
+                    }
+                }
+                Err(error) => {
+                    error!("{}", error);
+
+                    return "ERROR: failed to parse the response body to a valid JSON".to_string();
+                }
+            }
+        }
+        Err(error) => {
+            error!("{}", error);
+
+            return "ERROR: failed to fetch the OTS API".to_string();
+        }
+    }
+}
\ No newline at end of file