How do you change the Active Storage Service url_expires_in timeout?

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

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

Rails 6 will add config.active_storage.service_urls_expire_in:

# config/initializers/active_storage.rbRails.application.config.active_storage.service_urls_expire_in = 1.hour

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