#CREATING AN OTP VERIFICATION#
#CREATING AN OTP PASSWORD#

But there is one issue which I thought as I am generating the number using random(), in some cases it might generate a number 0.009876612 and when it is multiplied by 10000 and applying RoundDown, output will be 98, here the length of the OTP will be 2 instead of 4 this was one minor issue. The above expression is working fine, I am able to get the OTP. So for the above flow I did use the following expression: If they are not then navigate to Additional Details page-> then Home screen (after all the fields in additional page is filled) else if the user has already filled the additional details then navigate them to Home screen (after entering the OTP) Note: When any user uses the normal login (without OTP), a check is done to see if the user has filled the additional details or not (along with checking the credentials), so similarly when user selects the Login with OTP I want to perform a similar check (after user gets the OTP, they enter it it should first check if the additional details are filled or not. So for that I added a new button on the login screen named 'Login with OTP' like: But now I wanted to add an option of Login-In using One Time Password.

#CREATING AN OTP PASSWORD#

Self.verify_otp_nfig(state=tk.NORMAL)Ĭreate the root window, an instance of the class, and run the Tkinter application.I had designed a normal login page where Username and Password are checked from a share point list. Reset the status of all the widgets and variables as before. ( 1000, self.start_countdown, remaining_time - 1)ĭefine a function, reset_account(). Messagebox.showerror( 'Error', 'OTP has expired.') Remaining_time = expiration_time - elapsed_time Otherwise, calculate the minutes and seconds remaining, display it on the timer label, and sleep for one second. If the remaining time is less than or equal to zero, display an error message box saying the OTP expired.Īctivate the resend OTP button, set the OTP to none, and terminate. If stop_timer is true, terminate the loop. Record the starting time and run an infinite loop that takes the current time and calculates the elapsed and remaining time. Self.timer_thread = threading.Thread(target=self.timer_countdown)ĭefine a method, timer_countdown(). Organize these elements using the pack method.īuilding the Functionality of the Applicationĭefine a method, start_timer() that runs timer_countdown in a separate thread. Set its parent element, the text it should display, the command it should execute when clicked, and its font styles. Set its parent element, its width, and its font styles.Ĭreate three buttons to send OTP, resend OTP, and Verify OTP. Similarly, create two entry widgets to get input from the user. Set the parent element, the text it should display, and the font styles it should possess. import tkinter as tkĭefine three labels to ask for a mobile number, and an OTP, and to display a timer after the program sends an OTP. Set the expiration time to two minutes.ĭefine a class, OTPVerification, and initialize the constructor to set the default values of variables along with initializing the root window, and setting the title, and dimensions of the application. Initialize the Twilio client to authenticate and be the entry point for API calls. Import the necessary modules and set the authentication credentials.

#CREATING AN OTP VERIFICATION#

You can find the entire source code for building an OTP Verification System using Python in this GitHub repository.

Creating an otp