Add user login and replace pipenv with Nix

app/routes.py

@@ -1,5 +1,5 @@
 from flask import request, jsonify, make_response
-from database.crud import insert_data, verify_otp
+from database.crud import insert_data, verify_otp, verify_login
 from app.twilio import send_otp
 from app import app
 
@@ -8,11 +8,19 @@ from app import app
 def create_user():
     data = request.get_json()
     insert_data(schema="Users", data=data)
-    # send_otp(receiver=data["mobile"])
+    send_otp(receiver=data["mobile"])
     return make_response(jsonify("User created, pending OTP verification"))
 
 
-@app.route("/verifyotp", methods=["POST"])
+@app.route("/login", methods=["POST"])
+def log_in():
+    data = request.get_json
+    if verify_login(data=data):
+        return make_response(jsonify("Successful login"))
+    return make_response(jsonify("The email/password combination is not correct"))
+
+
+@app.route("/otpVerification", methods=["POST"])
 def validate_otp():
     data = request.get_json()
     if verify_otp(mobile=data["mobile"], otp=data["otp"]):