Dynamically change dcc.link text

My question is similar to the one posted here.

I use a dcc.link as sign-in and sign-out button.

It means that I need to change the text dynamically corresponding to the authentication state (I use flask-login, i.e. current_user.is_authenticated)

My approach is to use a callback such that everytime the dcc.link is being clicked the authentication state is being checked. If someone has logged in the dcc link should read sign out. If noone has logged in it should read sign in. This is the callback I wrote:

@app.callback(
   Output(component_id='sign-in-out', component_property='children'),
   Input(component_id='sign-in-out', component_property='children'),
)
def show_hide_element(tmp):
    if current_user.is_authenticated:
        return "Sign out"
    else:
        return "Sign in"

Unfortunately this does not work as it should. When I click sign out it does not change the text accordingly. How could I achieve this?

source https://stackoverflow.com/questions/76249478/dynamically-change-dcc-link-text

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