feat(auth): Add endpoint to get user info by token

app/api/v1/endpoints/auth.py

@@ -48,6 +48,35 @@ async def exchange_code_for_token(request: TokenRequest):
         )
     except Exception as e:
         logger.opt(exception=True).error("An unexpected error occurred during token exchange.")
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="An internal server error occurred."
+        )
+
+# Получает информацию о пользователе Яндекса
+@router.get("/userinfo", response_model=UserInfoResponse, summary="Получение информации о пользователе")
+async def get_user_info(credentials: Annotated[HTTPAuthorizationCredentials, Depends(bearer_scheme)]):
+    
+    token = credentials.credentials
+    headers = {'Authorization': f'OAuth {token}'}
+
+    try:
+        async with httpx.AsyncClient() as client:
+            response = await client.get(YANDEX_USERINFO_URL, headers=headers)
+            response.raise_for_status()
+            user_data = response.json()
+            logger.info(f"Fetched user info for login: {user_data.get('login')}")
+            return UserInfoResponse(**user_data)
+
+    except httpx.HTTPStatusError as e:
+        error_details = e.response.json()
+        logger.error(f"Yandex UserInfo API error: {e.response.status_code} - {error_details}")
+        raise HTTPException(
+            status_code=e.response.status_code,
+            detail=f"Yandex API Error: {error_details.get('error_description', 'Unknown error')}"
+        )
+    except Exception:
+        logger.opt(exception=True).error("An unexpected error occurred while fetching user info.")
         raise HTTPException(
             status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
             detail="An internal server error occurred."

app/api/v1/schemas/auth.py

@@ -7,4 +7,11 @@ class TokenRequest(BaseModel):
 class TokenResponse(BaseModel):
     """Схема ответа с токеном доступа."""
     access_token: str
-    token_type: str
+    token_type: str
+
+class UserInfoResponse(BaseModel):
+    """Схема ответа с информацией о пользователе Яндекса."""
+    id: str
+    login: str
+    display_name: str
+    default_email: str