Signup/Login web interface with Streamlit

[VINOD VIJAYAN]

Hi,

I just completed the task.

Below is my code:

import streamlit as st

# Initialize session state for user_data if not already present

if 'user_data' not in st.session_state:

st.session_state['user_data'] = {}

def home():

st.title("Simple Login App")

st.header("Home")

st.write("Welcome to Simple Login App. Please use the menu to log in or sign up.")

def signup():

st.title("Simple Login App")

st.header("Create a New Account")

username = st.text_input("Username")

password = st.text_input("Password", type="password")

# confirm_password = st.text_input("Confirm Password", type="password")

if st.button("Sign Up"):

if username in st.session_state['user_data']:

st.error("Username already exists. Please choose a different username.")

# elif password != confirm_password:

# st.error("Passwords do not match.")

else:

st.session_state['user_data'][username] = password

st.success("You have successfully signed up!")

st.info("Please go to the Login page to log in.")

def login():

st.title("Simple Login App")

st.header("Login Section")

username = st.text_input("Username")

password = st.text_input("Password", type="password")

if st.button("Login"):

if username not in st.session_state['user_data']:

st.error("Username does not exist. Please sign up first.")

elif st.session_state['user_data'][username] != password:

st.error("Incorrect password. Please try again.")

else:

st.success(f"Welcome {username.title()}!")

st.write("You have successfully logged in.")

st.header("Inner Page")

st.write("This is a protected inner page that only logged in user can see.")

def main():

# st.sidebar.header("Menu")

choice = (st.sidebar.selectbox("Menu", ["Home", "Login", "Sign Up"]))

if choice == "Sign Up":

signup()

elif choice == "Login":

login()

elif choice == "Home":

home()

if __name__ == "__main__":

main()