How to make a class asynchronous

[nascin]

In the example of async a main function is used, but in the case of a class, what would be the solution?

class App:
    def __init__(self, page: ft.Page) -> None:
        self.page = page

        page.theme_mode = 'light'
        page.fonts = FONTS
        page.title = 'Nascin Exchange'
        page.theme = ft.Theme(font_family='Roboto')

        def route_change(route):
            page.views.clear()
            t_route = ft.TemplateRoute(page.route)

            if t_route.match('/'):
                page.views.append(home_view())

            if t_route.match('/cryptos'):
                page.views.append(crytos_view())
        
            page.update()
        
        def view_pop(view):
            page.views.pop()
            top_view = page.views[-1]
            page.go(top_view.route)

        page.on_route_change = route_change
        page.on_view_pop = view_pop
        page.go(page.route)

if __name__ == '__main__':
    ft.app(
        target=App, 
        port=APP['port'],
        view=ft.WEB_BROWSER,
        route_url_strategy=APP['route_url_strategy'],
        assets_dir='exchange/assets'
    )

[FeodorFitsner]

__init__ cannot be async therefore there are various tricks exist, like this one: https://stackoverflow.com/a/33134213/1435891

You can just have an async method creating an instance of App class and then call some init method inside it, for example:

import flet as ft

class App:
    def __init__(self, page: ft.Page) -> None:
        self.page = page

    async def init(self):
        self.page.theme_mode = 'light'
        self.page.fonts = FONTS
        self.page.title = 'Nascin Exchange'
        self.page.theme = ft.Theme(font_family='Roboto')

        # ...
        # await methods come here

async def main(page: ft.Page):
    await App(page).init()

if __name__ == '__main__':
    ft.app(
        target=main, 
        port=APP['port'],
        view=ft.WEB_BROWSER,
        route_url_strategy=APP['route_url_strategy'],
        assets_dir='exchange/assets'
    )

[nascin]

Worked perfectly. Thanks!