Authentication without SSO
Introduction
Want to secure your Streamlit app with passwords, but cannot implement single sign-on? We got you covered! This guide shows you two simple techniques for adding basic authentication to your Streamlit app, using Secrets management.
Warning
While this technique adds some level of security, it is NOT comparable to proper authentication with an SSO provider.
Option 1: One global password for all users
This is the easiest option! Your app will ask for a password that's shared between all users. It will be stored in the app secrets using Secrets management. If you want to change this password or revoke a user's access, you will need to change it for everyone. If you want to have one password per user instead, jump to Option 2 below.
Step 1: Add the password to your local app secrets
Your local Streamlit app will read secrets from a file .streamlit/secrets.toml in your app's root dir. Create this file if it doesn't exist yet and add your password to it as shown below:
# .streamlit/secrets.toml
password = "streamlit123"
Important
Be sure to add this file to your .gitignore so you don't commit your secrets!
Step 2: Copy your app secrets to the cloud
As the secrets.toml file above is not committed to GitHub, you need to pass its content to your deployed app (on Streamlit Community Cloud) separately. Go to the app dashboard and in the app's dropdown menu, click on Edit Secrets. Copy the content of secrets.toml into the text area. More information is available at Secrets management.
Step 3: Ask for the password in your Streamlit app
Copy the code below to your Streamlit app, insert your normal app code in the if statement at the bottom, and run it:
# streamlit_app.py
import streamlit as st
def check_password():
"""Returns `True` if the user had the correct password."""
def password_entered():
"""Checks whether a password entered by the user is correct."""
if st.session_state["password"] == st.secrets["password"]:
st.session_state["password_correct"] = True
del st.session_state["password"] # don't store password
else:
st.session_state["password_correct"] = False
if "password_correct" not in st.session_state:
# First run, show input for password.
st.text_input(
"Password", type="password", on_change=password_entered, key="password"
)
return False
elif not st.session_state["password_correct"]:
# Password not correct, show input + error.
st.text_input(
"Password", type="password", on_change=password_entered, key="password"
)
st.error("😕 Password incorrect")
return False
else:
# Password correct.
return True
if check_password():
st.write("Here goes your normal Streamlit app...")
st.button("Click me")
If everything worked out, your app should look like this:
Option 2: Individual password for each user
This option allows you to set a username and password for each user of your app. Like in Option 1, both values will be stored in the app secrets using Secrets management.
Step 1: Add usernames & passwords to your local app secrets
Your local Streamlit app will read secrets from a file .streamlit/secrets.toml in your app's root dir. Create this file if it doesn't exist yet and add the usernames & password to it as shown below:
# .streamlit/secrets.toml
[passwords]
# Follow the rule: username = "password"
alice_foo = "streamlit123"
bob_bar = "mycrazypw"
Important
Be sure to add this file to your .gitignore so you don't commit your secrets!
Alternatively, you could set up and manage usernames & passwords via a spreadsheet or database. To use secrets to securely connect to Google Sheets, AWS, and other data providers, read our tutorials on how to Connect Streamlit to data sources.
Step 2: Copy your app secrets to the cloud
As the secrets.toml file above is not committed to GitHub, you need to pass its content to your deployed app (on Streamlit Community Cloud) separately. Go to the app dashboard and in the app's dropdown menu, click on Edit Secrets. Copy the content of secrets.toml into the text area. More information is available at Secrets management.
Step 3: Ask for username & password in your Streamlit app
Copy the code below to your Streamlit app, insert your normal app code in the if statement at the bottom, and run it:
# streamlit_app.py
import streamlit as st
def check_password():
"""Returns `True` if the user had a correct password."""
def password_entered():
"""Checks whether a password entered by the user is correct."""
if (
st.session_state["username"] in st.secrets["passwords"]
and st.session_state["password"]
== st.secrets["passwords"][st.session_state["username"]]
):
st.session_state["password_correct"] = True
del st.session_state["password"] # don't store username + password
del st.session_state["username"]
else:
st.session_state["password_correct"] = False
if "password_correct" not in st.session_state:
# First run, show inputs for username + password.
st.text_input("Username", on_change=password_entered, key="username")
st.text_input(
"Password", type="password", on_change=password_entered, key="password"
)
return False
elif not st.session_state["password_correct"]:
# Password not correct, show input + error.
st.text_input("Username", on_change=password_entered, key="username")
st.text_input(
"Password", type="password", on_change=password_entered, key="password"
)
st.error("😕 User not known or password incorrect")
return False
else:
# Password correct.
return True
if check_password():
st.write("Here goes your normal Streamlit app...")
st.button("Click me")
If everything worked out, your app should look like this:
Still have questions?
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