Question

I am building a web app from where the user can manage his twitter account. I’ve created the twitter app and once the user authenticates himself the application gets the access token from twitter. Does this access token expire or I can store it and make request, on user’s behalf, without asking from him to log in again ?

Answer 1

Here is what they saying in there development page

Question: How long does an access token last?

Access tokens are not explicitly expired. An access token will be
invalidated if a user explicitly revokes an application in the their
Twitter account settings, or if Twitter suspends an application. If an
application is suspended, there will be a note in the Twitter app
dashboard stating that it has been suspended.

More details can be found here

FAQ Twitter