Define user registration as a synchronous function

app/routes.py

@@ -9,7 +9,7 @@ router = APIRouter()
 
 
 @router.post("/register")
-async def create_user(request: UserCreate, db: Session = Depends(get_db)):
+def create_user(request: UserCreate, db: Session = Depends(get_db)):
     insert_data(model="Users", data=request, db=db)
     send_otp(receiver=request.mobile)
     return {"message": "User created, pending OTP verification"}

app/twilio.py

@@ -4,20 +4,20 @@ from constants import ACCOUNT_ID, TOKEN, SMS_SENDER
 from database.crud import save_otp
 
 
-async def connect_api():
+def connect_api():
     account_sid = ACCOUNT_ID
     auth_token = TOKEN
     client = Client(account_sid, auth_token)
     return client
 
 
-async def generate_code():
+def generate_code():
     bits = 16
     code = randbits(bits)
     return code
 
 
-async def send_otp(receiver):
+def send_otp(receiver):
     client = connect_api()
     code = generate_code()
     message = "Your OTP code is {0}".format(code)