ToUI with Firebase#

ToUI can be used with Firebase. Create a Firebase app to use this example. In this example, ToUI is used with Firebase for:

User authentication
Storing user data in database
File storage
File retrieval

This example uses the HTML file “test7.html”:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1>Sign in users:</h1>
    <input id="username"/>
    <input id="password"/>
    <button id="sign-in">Sign in</button>
    <button id="sign-up">Sign up</button>
    <p id="output"></p>
    <h1>Upload files:</h1>
    <input type="file" id="file"/>
    <button id="get-file">Download uploaded file</button>
    <p id="output2"></p>
</body>
</html>

Python code:

import os
from toui import Website, Page

app = Website(__name__, assets_folder="assets", secret_key="some text")
app.add_firebase(".my_firebase_credentials.json") # You can get this file from your firebase project settings
app.add_user_database_using_firebase() # Connects to firestore database. Make sure that you created one in Firebase.
BUCKET_NAME = "test-14583.appspot.com" # Change this value to match your bucket name in Firebase Storage

main_pg = Page(html_file="assets/test7.html", url="/")

def sign_in():
    pg = app.get_user_page()
    username = pg.get_element("username").get_value()
    password = pg.get_element("password").get_value()
    pg.get_element("output").set_content("loading")
    success = app.signin_user(username=username, password=password)
    if success:
        age = app.get_current_user_data("age")
        pg.get_element("output").set_content(f"Signed in successfully. Age of user: {age}")
    else:
        pg.get_element("output").set_content("Sign in failed")

def sign_up():
    pg = app.get_user_page()
    username = pg.get_element("username").get_value()
    password = pg.get_element("password").get_value()
    pg.get_element("output").set_content("loading")
    success = app.signup_user(username=username, password=password)
    if success:
        app.signin_user(username=username, password=password)
        value_added = app.set_current_user_data("age", 20)
        pg.get_element("output").set_content(f"Signed up successfully. Age added: {value_added}")
    else:
        pg.get_element("output").set_content("Sign up failed")


def store_file():
    pg = app.get_user_page()
    file = pg.get_element("file").get_files()[0]
    with open(".test_file", "w") as f:
        file.save(f)
    app.store_file_using_firebase(destination_path=f"{app.get_current_user_id()}/test_file", file_path=".test_file", bucket_name=BUCKET_NAME)
    pg.get_element("output2").set_content("File stored")

def retrieve_file():
    pg = app.get_user_page()
    if os.path.exists(".new_test_file"):
        raise Exception(".new_test_file already exists")
    app.get_file_from_firebase(source_path=f"{app.get_current_user_id()}/test_file", new_file_path=".new_test_file", bucket_name=BUCKET_NAME)
    with open(".new_test_file", "r") as f:
        pg.get_element("output2").set_content("Downloaded file content: " + f.read())


main_pg.get_element("sign-in").onclick(sign_in)
main_pg.get_element("sign-up").onclick(sign_up)
main_pg.get_element("file").on("change", store_file)
main_pg.get_element("get-file").onclick(retrieve_file)

app.add_pages(main_pg)

if __name__ == '__main__':
    app.run()