diff --git a/api/advent22_api/core/config.py b/api/advent22_api/core/config.py
index 0a11472..c51e208 100644
--- a/api/advent22_api/core/config.py
+++ b/api/advent22_api/core/config.py
@@ -13,7 +13,7 @@ class User(BaseModel):
 
 class Puzzle(BaseModel):
     # Titel
-    # TODO
+    # TODO neue Route GET /user/title
     title: str
 
     # Lösungswort
diff --git a/api/advent22_api/routers/admin.py b/api/advent22_api/routers/admin.py
index 7a8e2b5..e6a77ba 100644
--- a/api/advent22_api/routers/admin.py
+++ b/api/advent22_api/routers/admin.py
@@ -80,18 +80,6 @@ async def get_config_model(
     )
 
 
-@router.get("/day_parts")
-async def get_day_parts(
-    _: None = Depends(require_admin),
-    parts: dict[int, str] = Depends(get_all_parts),
-) -> dict[int, str]:
-    """
-    Zuordnung der Lösungsteile zu den Tagen
-    """
-
-    return parts
-
-
 @router.get("/day_image_names")
 async def get_day_image_names(
     _: None = Depends(require_admin),
@@ -104,6 +92,18 @@ async def get_day_image_names(
     return image_names
 
 
+@router.get("/day_parts")
+async def get_day_parts(
+    _: None = Depends(require_admin),
+    parts: dict[int, str] = Depends(get_all_parts),
+) -> dict[int, str]:
+    """
+    Zuordnung der Lösungsteile zu den Tagen
+    """
+
+    return parts
+
+
 @router.get("/doors")
 async def get_doors(
     _: None = Depends(require_admin),
diff --git a/api/advent22_api/routers/user.py b/api/advent22_api/routers/user.py
index 9bd099d..b51aed7 100644
--- a/api/advent22_api/routers/user.py
+++ b/api/advent22_api/routers/user.py
@@ -26,6 +26,18 @@ async def get_background_image(
     return await api_return_image(await load_image(f"files/{cal_cfg.background}"))
 
 
+@router.get("/doors")
+async def get_doors(
+    cal_cfg: CalendarConfig = Depends(get_calendar_config),
+    visible_days: list[int] = Depends(user_visible_days),
+) -> DoorsSaved:
+    """
+    User-sichtbare Türchen lesen
+    """
+
+    return [door for door in cal_cfg.doors if door.day in visible_days]
+
+
 @router.get(
     "/image_{day}",
     response_class=StreamingResponse,
@@ -50,18 +62,6 @@ async def get_image_for_day(
     return await api_return_image(image)
 
 
-@router.get("/doors")
-async def get_doors(
-    cal_cfg: CalendarConfig = Depends(get_calendar_config),
-    visible_days: list[int] = Depends(user_visible_days),
-) -> DoorsSaved:
-    """
-    User-sichtbare Türchen lesen
-    """
-
-    return [door for door in cal_cfg.doors if door.day in visible_days]
-
-
 @router.get("/next_door")
 async def get_next_door(
     event_dates: EventDates = Depends(get_all_event_dates),
diff --git a/ui/src/components/AdminButton.vue b/ui/src/components/AdminButton.vue
index dde95b9..ede1c33 100644
--- a/ui/src/components/AdminButton.vue
+++ b/ui/src/components/AdminButton.vue
@@ -38,7 +38,7 @@ export default class extends Vue {
   public on_click() {
     if (this.modelValue) {
       // logout
-      this.$advent22.clear_api_auth();
+      this.$advent22.set_api_auth();
       this.$emit("update:modelValue", false);
     } else {
       // show login modal
@@ -49,7 +49,7 @@ export default class extends Vue {
 
   public on_submit(username: string, password: string) {
     this.modal_visible = false;
-    this.$advent22.set_api_auth(username, password);
+    this.$advent22.api_auth = [username, password];
 
     this.$advent22
       .api_get<boolean>("admin/is_admin")
diff --git a/ui/src/components/admin/ConfigView.vue b/ui/src/components/admin/ConfigView.vue
index 8cb35e3..a0bbbe9 100644
--- a/ui/src/components/admin/ConfigView.vue
+++ b/ui/src/components/admin/ConfigView.vue
@@ -90,10 +90,10 @@
               <dd class="is-family-monospace">
                 <BulmaSecret @load="load_dav_credentials">
                   <span class="tag is-danger">user</span>
-                  {{ dav_credentials.username }}
+                  {{ dav_credentials[0] }}
                   <br />
                   <span class="tag is-danger">pass</span>
-                  {{ dav_credentials.password }}
+                  {{ dav_credentials[1] }}
                 </BulmaSecret>
               </dd>
 
@@ -107,10 +107,10 @@
               <dd class="is-family-monospace">
                 <BulmaSecret @load="load_ui_credentials">
                   <span class="tag is-danger">user</span>
-                  {{ ui_credentials.username }}
+                  {{ ui_credentials[0] }}
                   <br />
                   <span class="tag is-danger">pass</span>
-                  {{ ui_credentials.password }}
+                  {{ ui_credentials[1] }}
                 </BulmaSecret>
               </dd>
             </dl>
@@ -122,7 +122,7 @@
 </template>
 
 <script lang="ts">
-import { ConfigModel, DoorsSaved, NumStrDict } from "@/lib/api";
+import { ConfigModel, Credentials, DoorsSaved, NumStrDict } from "@/lib/api";
 import { DateTime } from "luxon";
 import { Options, Vue } from "vue-class-component";
 
@@ -130,11 +130,6 @@ import BulmaDrawer from "../bulma/Drawer.vue";
 import BulmaSecret from "../bulma/Secret.vue";
 import CountDown from "../CountDown.vue";
 
-interface Credentials {
-  username: string;
-  password: string;
-}
-
 @Options({
   components: {
     BulmaDrawer,
@@ -170,8 +165,8 @@ export default class extends Vue {
   public day_parts: NumStrDict = {};
   public num_user_doors = 0;
   public next_door: number | null = null;
-  public dav_credentials: Credentials = { username: "", password: "" };
-  public ui_credentials: Credentials = { username: "", password: "" };
+  public dav_credentials: Credentials = ["", ""];
+  public ui_credentials: Credentials = ["", ""];
 
   public fmt_puzzle_date(name: keyof ConfigModel["puzzle"]): string {
     const iso_date = this.config_model.puzzle[name];
@@ -200,25 +195,15 @@ export default class extends Vue {
 
   public load_dav_credentials(): void {
     this.$advent22
-      .api_get<string[]>("admin/dav_credentials")
-      .then(([username, password]) => {
-        this.dav_credentials = {
-          username: username,
-          password: password,
-        };
-      })
+      .api_get<Credentials>("admin/dav_credentials")
+      .then((creds) => (this.dav_credentials = creds))
       .catch(() => {});
   }
 
   public load_ui_credentials(): void {
     this.$advent22
-      .api_get<string[]>("admin/ui_credentials")
-      .then(([username, password]) => {
-        this.ui_credentials = {
-          username: username,
-          password: password,
-        };
-      })
+      .api_get<Credentials>("admin/ui_credentials")
+      .then((creds) => (this.ui_credentials = creds))
       .catch(() => {});
   }
 }
diff --git a/ui/src/lib/api.ts b/ui/src/lib/api.ts
index 3cd22da..e842d01 100644
--- a/ui/src/lib/api.ts
+++ b/ui/src/lib/api.ts
@@ -37,6 +37,8 @@ export interface DoorSaved {
 
 export type DoorsSaved = DoorSaved[];
 
+export type Credentials = [username: string, password: string];
+
 export function objForEach<T>(
   obj: T,
   f: (k: keyof T, v: T[keyof T]) => void,
diff --git a/ui/src/plugins/advent22.ts b/ui/src/plugins/advent22.ts
index e71ff47..c7dc0e2 100644
--- a/ui/src/plugins/advent22.ts
+++ b/ui/src/plugins/advent22.ts
@@ -1,9 +1,15 @@
-import axios, { AxiosError, AxiosInstance, ResponseType } from "axios";
+import { Credentials } from "@/lib/api";
+import axios, {
+  AxiosBasicCredentials,
+  AxiosError,
+  AxiosInstance,
+  ResponseType,
+} from "axios";
 import { App, Plugin } from "vue";
 
 export class Advent22 {
   private axios: AxiosInstance;
-  private api_auth = { username: "", password: "" };
+  private _api_auth: Credentials = ["", ""];
 
   public constructor() {
     this.axios = axios.create({
@@ -77,12 +83,19 @@ export class Advent22 {
     return result();
   }
 
-  public set_api_auth(username: string, password: string) {
-    this.api_auth = { username: username, password: password };
+  public get api_auth(): AxiosBasicCredentials {
+    const [username, password] = this._api_auth;
+    return { username: username, password: password };
   }
 
-  public clear_api_auth() {
-    this.api_auth = { username: "", password: "" };
+  public set_api_auth(): void;
+  public set_api_auth(creds: Credentials): void;
+  public set_api_auth(creds: Credentials = ["", ""]): void {
+    this._api_auth = creds;
+  }
+
+  public set api_auth(creds: Credentials) {
+    this.set_api_auth(creds);
   }
 
   public api_url(): string;