add dependances

app/main.py

@@ -1,11 +1,12 @@
 from fastapi import FastAPI
 
-from .routers import users
+from .routers import users, token
 
 
 app = FastAPI()
 
 app.include_router(users.router)
+app.include_router(token.router)
 
 @app.get("/")
 async def root():

app/models/token.py

@@ -0,0 +1,9 @@
+from pydantic import BaseModel
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str
+
+
+class TokenData(BaseModel):
+    username: str | None = None

app/models/users.py

@@ -5,7 +5,7 @@ class User(BaseModel):
     id: int
     username: str
     password: str
-    permissions: list[str] = []
+    roles: str
 
 class UserInDB(User):
     password: str

app/routers/token.py

@@ -0,0 +1,25 @@
+from typing import Annotated
+from fastapi import Depends, FastAPI, HTTPException, status, APIRouter
+from fastapi.security import OAuth2PasswordBearer, OAuth2PasswordRequestForm
+from ..dependencies import fake_users, authenticate_user
+from ..models import token
+
+router = APIRouter()
+
+
+@router.post("/token", response_model=token.Token, tags=["token"])
+async def login_for_access_token(
+    form_data: Annotated[OAuth2PasswordRequestForm, Depends()]
+):
+    user = authenticate_user(fake_users, form_data.username, form_data.password)
+    if not user:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect username or password",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+    access_token_expires = timedelta(minutes=dependencies.ACCESS_TOKEN_EXPIRE_MINUTES)
+    access_token = create_access_token(
+        data={"sub": user.username}, expires_delta=access_token_expires
+    )
+    return {"access_token": access_token, "token_type": "bearer"}

app/routers/users.py

@@ -1,14 +1,6 @@
 from fastapi import APIRouter
+from ..models import users
 
-fake_users = [
-    # password foo
-    {'id': 1, 'username': 'admin', 'password': '$2b$12$N.i74Kle18n5Toxhas.rVOjZreVC2WM34fCidNDyhSNgxVlbKwX7i',
-     'permissions': ['items:read', 'items:write', 'users:read', 'users:write']
-    },
-    # password bar
-    {'id': 2, 'username': 'client', 'password': '$2b$12$KUgpw1m0LF/s9NS1ZB5rRO2cA5D13MqRm56ab7ik2ixftXW/aqEyq',
-     'permissions': ['items:read']}
-]
 
 router = APIRouter()
 

requierements.txt

@@ -1,3 +1,6 @@
 fastapi
 uvicorn[standard]
 pydantic-mongo
+python-jose[cryptography]
+passlib[bcrypt]
+python-multipart