diff --git a/src/fime/task_completer.py b/src/fime/task_completer.py
index ad1471d..308b9e3 100644
--- a/src/fime/task_completer.py
+++ b/src/fime/task_completer.py
@@ -8,6 +8,8 @@ from queue import Queue, Empty
 from loguru import logger
 from requests import Response
 
+from fime.util import add_auth
+
 try:
     from PySide6 import QtCore, QtWidgets
 except ImportError:
@@ -30,6 +32,8 @@ class TaskCompleter(QtWidgets.QCompleter):
         self.setFilterMode(QtCore.Qt.MatchFlag.MatchContains)
         self.setCaseSensitivity(QtCore.Qt.CaseInsensitive)
         self.session = FuturesSession()
+        self.session.headers["Accept"] = "application/json"
+        add_auth(config, self.session)
         self.config = config
         self.picker_url = None
         self.search_url = None
@@ -81,7 +85,7 @@ class TaskCompleter(QtWidgets.QCompleter):
     def update_picker(self, text):
         self.text = text
         if self.text == self.currentCompletion():
-            # do not update, after auto completion was used
+            # do not update, after auto-completion was used
             return
         if self.escalate:
             self.update_search()
@@ -93,10 +97,6 @@ class TaskCompleter(QtWidgets.QCompleter):
             params={
                 "query": self.text
             },
-            headers={
-                "Authorization": f"Bearer {self.config.jira_token}",
-                "Accept": "application/json",
-            },
         )
         with self.rif_counter_lock:
             self.rif_counter += 1
@@ -133,10 +133,6 @@ class TaskCompleter(QtWidgets.QCompleter):
                     "maxResults": 10,
                     "fields": "key,summary",
                 },
-                headers={
-                    "Authorization": f"Bearer {self.config.jira_token}",
-                    "Accept": "application/json",
-                },
             )
             with self.rif_counter_lock:
                 self.rif_counter += 1
@@ -162,13 +158,7 @@ class TaskCompleter(QtWidgets.QCompleter):
         stripped = self.text.strip()
         if not self.issue_key_regex.match(stripped):
             return
-        future = self.session.get(
-            self.issue_url_tmpl.format(stripped.upper()),
-            headers={
-                "Authorization": f"Bearer {self.config.jira_token}",
-                "Accept": "application/json",
-            },
-        )
+        future = self.session.get(self.issue_url_tmpl.format(stripped.upper()))
         with self.rif_counter_lock:
             self.rif_counter += 1
         future.add_done_callback(partial(self.issue_response_callback, self.text))
diff --git a/src/fime/util.py b/src/fime/util.py
index fb66ef7..b579bd6 100644
--- a/src/fime/util.py
+++ b/src/fime/util.py
@@ -1,6 +1,9 @@
 import enum
 
 from loguru import logger
+from requests import Session
+
+from fime.config import Config, AuthMethods
 
 try:
     from PySide6 import QtCore, QtGui, QtWidgets
@@ -51,3 +54,13 @@ class Status(enum.Enum):
     PROGRESS = enum.auto()
     OK = enum.auto()
     ERROR = enum.auto()
+
+
+def add_auth(config: Config, session: Session):
+    match config.auth_mode:
+        case AuthMethods.TOKEN:
+            session.headers["Authorization"] = f"Bearer {config.jira_token}"
+        case AuthMethods.COOKIES:
+            raise NotImplemented
+        case _:
+            raise AssertionError("Unknown auth method")
diff --git a/src/fime/worklog_rest.py b/src/fime/worklog_rest.py
index a04a2e9..820a1d3 100644
--- a/src/fime/worklog_rest.py
+++ b/src/fime/worklog_rest.py
@@ -12,7 +12,7 @@ from requests_futures.sessions import FuturesSession
 
 from fime.config import Config
 from fime.exceptions import FimeException
-from fime.util import Status
+from fime.util import Status, add_auth
 
 
 class WorklogRest:
@@ -23,6 +23,8 @@ class WorklogRest:
         self.worklog_url = os.path.join(config.jira_url, "rest/api/2/issue/{}/worklog")
         self.worklog_update_url = os.path.join(config.jira_url, "rest/api/2/issue/{issue_key}/worklog/{worklog_id}")
         self.session = FuturesSession()
+        self.session.headers["Accept"] = "application/json"
+        add_auth(config, self.session)
         self._user = None
         self._user_future = self._req_user()
         self._issue_state: Dict[str, Tuple[Status, str]] = dict()
@@ -31,13 +33,7 @@ class WorklogRest:
         self._issues_lock = Lock()
 
     def _req_user(self):
-        future = self.session.get(
-            self.user_url,
-            headers={
-                "Authorization": f"Bearer {self.config.jira_token}",
-                "Accept": "application/json",
-            },
-        )
+        future = self.session.get(self.user_url)
         future.add_done_callback(self._resp_user)
         return future
 
@@ -60,13 +56,7 @@ class WorklogRest:
         return ret
 
     def _req_issue(self, issue_key: str, pdate: date):
-        future = self.session.get(
-            self.issue_url.format(issue_key),
-            headers={
-                "Authorization": f"Bearer {self.config.jira_token}",
-                "Accept": "application/json",
-            },
-        )
+        future = self.session.get(self.issue_url.format(issue_key))
         future.add_done_callback(partial(self._resp_issue, issue_key, pdate))
 
     def _resp_issue(self, issue_key: str, pdate: date, future: Future):
@@ -79,13 +69,7 @@ class WorklogRest:
                 self._issue_state[issue_key] = (Status.ERROR, "Could not find specified issue")
 
     def _req_worklog_check(self, issue_key: str, issue_title: str, pdate: date):
-        future = self.session.get(
-            self.worklog_url.format(issue_key),
-            headers={
-                "Authorization": f"Bearer {self.config.jira_token}",
-                "Accept": "application/json",
-            },
-        )
+        future = self.session.get(self.worklog_url.format(issue_key))
         future.add_done_callback(partial(self._resp_worklog_check, issue_key, issue_title, pdate))
 
     def _resp_worklog_check(self, issue_key: str, issue_title: str, pdate: date, future: Future):
@@ -144,8 +128,6 @@ class WorklogRest:
         future = self.session.post(
             self.worklog_url.format(issue_key),
             headers={
-                "Authorization": f"Bearer {self.config.jira_token}",
-                "Accept": "application/json",
                 "Content-Type": "application/json",
             },
             json={
@@ -161,8 +143,6 @@ class WorklogRest:
         future = self.session.put(
             self.worklog_update_url.format(issue_key=issue_key, worklog_id=worklog_id),
             headers={
-                "Authorization": f"Bearer {self.config.jira_token}",
-                "Accept": "application/json",
                 "Content-Type": "application/json",
             },
             json={