st-login-form 0.1.0

A streamlit component that creates a user login form connected to a Supabase DB. It lets users create a new username and password, login to an existing account, or login as an anonymous guest.

:lock: st-login-form

A streamlit component that creates a user login form connected to a Supabase DB. It lets users create a new username and password, login to an existing account, or login as an anonymous guest.

The login form collapses after login to no occupy screen-space.

:computer: Demo app

:construction: Installation instructions

1. Install st-login-form

pip install st-login-form

2. Create a Supabase project as mentioned here
3. Create a table to store the usernames and passwords. The table name and column names can be as per your choice.

CREATE TABLE users (
    username text not null default ''::text,
    password text not null,
    constraint users_pkey primary key (username),
    constraint users_username_key unique (username),
    constraint users_password_check check (
      (
        length(
          trim(
            both
            from
              password
          )
        ) > 1
      )
    ),
    constraint users_username_check check (
      (
        length(
          trim(
            both
            from
              username
          )
        ) > 1
      )
    )
  ) tablespace pg_default;

4. Follow the rest of the steps from here to connect your Streamlit app to Supabase

:pen: Usage instructions

login_form() sets session_state["authenticated"] to True if the login is successful, session_state["username"] to the username or new or existing user, and to None for guest login.

import streamlit as st

from streamlit_login import login_form

login_form()

if st.session_state["authenticated"]:
    if st.session_state["username"]:
        st.success(f"Welcome {st.session_state['username']}")
    else:
        st.success("Welcome guest")
else:
    st.error("Not authenticated")