diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 80de9ef..c16b898 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -99,8 +99,6 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: cd into folder
-        run: cd frontend
       - uses: actions/setup-node@v3
         with:
           node-version: '18'
diff --git a/backend/migrations/env.py b/backend/migrations/env.py
index 2752340..303791d 100644
--- a/backend/migrations/env.py
+++ b/backend/migrations/env.py
@@ -1,11 +1,9 @@
 from logging.config import fileConfig
 
 from alembic import context
-from sqlalchemy import engine_from_config, pool
-
 from my_app_api.models.base import Base
 from my_app_api.settings import get_settings
-
+from sqlalchemy import engine_from_config, pool
 
 # this is the Alembic Config object, which provides
 # access to the values within the .ini file in use.
@@ -61,7 +59,7 @@ def run_migrations_online():
 
     """
     configuration = config.get_section(config.config_ini_section)
-    configuration['sqlalchemy.url'] = str(settings.DB_DSN)
+    configuration["sqlalchemy.url"] = str(settings.DB_DSN)
     connectable = engine_from_config(
         configuration,
         prefix="sqlalchemy.",
diff --git a/backend/my_app_api/__init__.py b/backend/my_app_api/__init__.py
index aed50a4..4ed3366 100644
--- a/backend/my_app_api/__init__.py
+++ b/backend/my_app_api/__init__.py
@@ -1,4 +1,3 @@
 import os
 
-
 __version__ = os.getenv("APP_VERSION", "dev")
diff --git a/backend/my_app_api/__main__.py b/backend/my_app_api/__main__.py
index 7415f52..70ad503 100644
--- a/backend/my_app_api/__main__.py
+++ b/backend/my_app_api/__main__.py
@@ -1,7 +1,5 @@
 import uvicorn
-
 from my_app_api.routes import app
 
-
-if __name__ == '__main__':
+if __name__ == "__main__":
     uvicorn.run(app)
diff --git a/backend/my_app_api/exceptions.py b/backend/my_app_api/exceptions.py
index e69de29..31fcb41 100644
--- a/backend/my_app_api/exceptions.py
+++ b/backend/my_app_api/exceptions.py
@@ -0,0 +1,5 @@
+class APIError(Exception):
+    """Base class for API errors"""
+
+    def __init__(self, message: str) -> None:
+        super().__init__(message)
diff --git a/backend/my_app_api/routes/__init__.py b/backend/my_app_api/routes/__init__.py
index 8500154..fbf71a6 100644
--- a/backend/my_app_api/routes/__init__.py
+++ b/backend/my_app_api/routes/__init__.py
@@ -4,22 +4,20 @@
 from fastapi.middleware.cors import CORSMiddleware
 from fastapi.staticfiles import StaticFiles
 from fastapi_sqlalchemy import DBSessionMiddleware
-
 from my_app_api import __version__
 from my_app_api.settings import get_settings
 
-from .click import router as click_router
-
+from .touch import router as touch_router
 
 settings = get_settings()
 logger = logging.getLogger(__name__)
 app = FastAPI(
-    title='Мое приложение',
-    description='Бэкэнд приложения-примера',
+    title="Мое приложение",
+    description="Бэкэнд приложения-примера",
     version=__version__,
     # Отключаем нелокальную документацию
-    root_path=settings.ROOT_PATH if __version__ != 'dev' else '',
-    docs_url='/swagger',
+    root_path=settings.ROOT_PATH if __version__ != "dev" else "",
+    docs_url="/swagger",
     redoc_url=None,
 )
 
@@ -39,10 +37,16 @@
 
 if settings.UI_DIR_PATH:
     logger.debug("Enabling UI")
-    app.mount("/ui", app=StaticFiles(directory=settings.UI_DIR_PATH, html=True), name="ui")
+    app.mount(
+        "/ui", app=StaticFiles(directory=settings.UI_DIR_PATH, html=True), name="ui"
+    )
 
 if settings.DOCS_DIR_PATH:
     logger.debug("Enabling Docs")
-    app.mount("/docs", app=StaticFiles(directory=settings.DOCS_DIR_PATH, html=True), name="docs")
+    app.mount(
+        "/docs",
+        app=StaticFiles(directory=settings.DOCS_DIR_PATH, html=True),
+        name="docs",
+    )
 
-app.include_router(click_router)
+app.include_router(touch_router)
diff --git a/backend/my_app_api/routes/click.py b/backend/my_app_api/routes/click.py
deleted file mode 100644
index a75896d..0000000
--- a/backend/my_app_api/routes/click.py
+++ /dev/null
@@ -1,25 +0,0 @@
-import logging
-
-from fastapi import APIRouter
-from pydantic import BaseModel
-
-
-logger = logging.getLogger(__name__)
-router = APIRouter(prefix='/click', tags=['Click'])
-
-
-# region schemas
-class ClickResponse(BaseModel):
-    count: int
-
-
-# endregion
-
-
-# region routes
-@router.get('')
-def get_clicks() -> ClickResponse:
-    return ClickResponse(count=1)
-
-
-# endregion
diff --git a/backend/my_app_api/routes/touch.py b/backend/my_app_api/routes/touch.py
new file mode 100644
index 0000000..d64a2b9
--- /dev/null
+++ b/backend/my_app_api/routes/touch.py
@@ -0,0 +1,31 @@
+import logging
+
+from auth_lib.fastapi import UnionAuth
+from fastapi import APIRouter, Depends
+from pydantic import BaseModel
+
+logger = logging.getLogger(__name__)
+router = APIRouter(prefix="/example", tags=["Example"])
+
+CLICKS: dict[int, int] = {}
+
+
+class WhoAmI(BaseModel):
+    id: int
+
+
+class TouchGet(WhoAmI):
+    count: int
+
+
+@router.get("/whoami", response_model=WhoAmI)
+def whoami(auth=Depends(UnionAuth(allow_none=False))):
+    return {"id": auth["id"]}
+
+
+@router.post("/touch", response_model=TouchGet)
+def touch(auth=Depends(UnionAuth(allow_none=False))):
+    if auth["id"] not in CLICKS:
+        CLICKS[auth["id"]] = 0
+    CLICKS[auth["id"]] += 1
+    return {"id": auth["id"], "count": CLICKS[auth["id"]]}
diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index 3360995..bf2a06d 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.black]
 line-length = 120
-target-version = ['py312']
+target-version = ['py311']
 skip-string-normalization = true
 
 [tool.isort]
diff --git a/backend/requirements.dev.txt b/backend/requirements.dev.txt
index c8d847a..5d09b7b 100644
--- a/backend/requirements.dev.txt
+++ b/backend/requirements.dev.txt
@@ -5,3 +5,4 @@ isort
 pytest
 pytest-cov
 pytest-mock
+auth-lib-profcomff[testing]
diff --git a/backend/tests/conftest.py b/backend/tests/conftest.py
index e69de29..d8161c6 100644
--- a/backend/tests/conftest.py
+++ b/backend/tests/conftest.py
@@ -0,0 +1,9 @@
+import pytest
+from fastapi.testclient import TestClient
+from my_app_api.routes import app
+
+
+@pytest.fixture
+def client():
+    client = TestClient(app)
+    yield client
diff --git a/backend/tests/test_routes/.gitkeep b/backend/tests/test_routes/.gitkeep
deleted file mode 100644
index 8b13789..0000000
--- a/backend/tests/test_routes/.gitkeep
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/backend/tests/test_routes/test_click.py b/backend/tests/test_routes/test_click.py
new file mode 100644
index 0000000..7f2fd99
--- /dev/null
+++ b/backend/tests/test_routes/test_click.py
@@ -0,0 +1,21 @@
+import pytest
+
+
+@pytest.mark.authenticated()
+def test_whoami(client):
+    resp = client.get("/example/whoami")
+    assert resp.status_code == 200
+    assert resp.json()["id"] == 0
+
+
+@pytest.mark.authenticated()
+def test_touch(client):
+    resp = client.post("/example/touch")
+    assert resp.status_code == 200
+    assert resp.json()["id"] == 0
+    assert resp.json()["count"] == 1
+
+    resp = client.post("/example/touch")
+    assert resp.status_code == 200
+    assert resp.json()["id"] == 0
+    assert resp.json()["count"] == 2
diff --git a/frontend/package.json b/frontend/package.json
index 1a06494..5ac02ca 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -10,7 +10,7 @@
     "lint": "eslint --ext ts,vue src/ --fix",
     "format": "prettier src/ --write",
     "stylelint": "stylelint 'src/**/*.{vue,css}' --fix",
-    "check": "vue-tsc && pnpm run format && pnpm run lint && pnpm run stylelint"
+    "check": "vue-tsc && npm run format && npm run lint && npm run stylelint"
   },
   "dependencies": {
     "axios": "^1.6.5",