diff --git a/fleet_management/traccar_api.py b/fleet_management/traccar_api.py
new file mode 100644
index 0000000..4aed0e9
--- /dev/null
+++ b/fleet_management/traccar_api.py
@@ -0,0 +1,68 @@
+from datetime import datetime
+import frappe
+import requests
+from requests.auth import HTTPBasicAuth
+
+def traccar_auth(ts):
+    """authenticates on traccar server and returns cookies"""
+    response = requests.post(
+        f"http://{ts.traccar_server}:{ts.traccar_port}/api/session",
+        data = {
+            'email': ts.traccar_username,
+            'password': frappe.utils.password.get_decrypted_password(
+                'TraccarServer',
+                ts.name,
+                'traccar_password'
+            )
+        }
+    )    
+    if response.status_code == 200:
+        return response.cookies
+    else:
+        frappe.throw(f"Authentication failed: {response.status_code}: {response.reason}<br />Dict ts: {ts.as_dict()}")
+
+@frappe.whitelist()
+def get_devices(doc=None):
+    """fetches all devices the user has access to and stores them in Tracker Doctype
+    should also be able to be called frequently to update the status"""
+
+    # get informations for authentication on traccar server
+    ts = frappe.get_last_doc('TraccarServer')
+
+    # get all devices from traccar server
+    try:
+        devices = requests.get(
+            f"http://{ts.traccar_server}:{ts.traccar_port}/api/devices",
+            cookies = traccar_auth(ts)
+        )
+    except:
+        frappe.throw("Could not fetch devices from traccar server")
+
+    # Insert devices into Tracker Doctype
+    for dev in devices.json():
+        if not frappe.db.exists('Tracker', int(dev['id'])):
+            frappe.get_doc({
+                'doctype': 'Tracker',
+                'portal_id': dev['id'],
+                'portal_name': dev['name'],
+                'unique_id': dev['uniqueId'],
+                'status': dev['status'],
+                'last_update': datetime.fromisoformat(dev['lastUpdate']).strftime('%Y-%m-%d %H:%M:%S'),
+                'position_id': dev['positionId'],
+                'group_id': dev['groupId'],
+                'phone': dev['phone'],
+                'model': dev['model'],
+                'contact': dev['contact'],
+                'categorie': dev['category'],
+                'disabled': dev['disabled'],
+            }).insert()
+
+    # update db frappe
+    frappe.db.commit()
+
+
+
+def get_trips_for_device(device, start = None, end = None):
+    """getches all trip for a device, stores them Trip Doctype and links them to the vehicle which is assigned to the device"""
+    pass
+