How do you change the Active Storage Service url_expires_in timeout?

Question

When Active Storage creates a signed variant URL, it sets a default timeout of 5.minutes. I really want to increase this, but I've been trawling Github issues, code diving and cannot find it anywhere. On line 44 of the services class a class_attribute is set, but how can this be overwritten?

https://github.com/rails/rails/blob/5-2-stable/activestorage/lib/active_storage/service.rb#L44

I'm using url_for to generate the signed variant links and there doesn't seem to be anyway to change the setting then. Any help would be greatly appreciated.

Thank you! :)

Batory

what do you think about inheritance? from service.rb class and override the value of url_expires_in? – Durante

Answer 1

Set ActiveStorage::Service.url_expires_in directly, e.g. in an initializer:

# config/initializers/active_storage.rb
ActiveStorage::Service.url_expires_in = 1.hour

Rails 6 will add config.active_storage.service_urls_expire_in:

# config/initializers/active_storage.rb
Rails.application.config.active_storage.service_urls_expire_in = 1.hour

Leila

Sir is there a limit for this configuration? Say can you do a 5.months duration config? – Shien

@RicardoGreen According to github.com/rails/rails/issues/31581 there is a limit of 1 week if you use S3. – Countryfied

@George Claghorn How to generate active_storage.rb file? I don't have active_storage.rb file in my hole project. – Carburet

You would just create the file in your project folder. Use the path given in the comments config/initializers/active_storage.rb. Alternatively you can add this to your development.rb or production rb environment files as well. – Dallon

How do you create a non-expiring link to the file? – Gustie

@Gustie You can now setup permanent links by setting up a public bucket. edgeguides.rubyonrails.org/… – Haihaida