temporary links

You can create custom shared links and adjust the settings and permissions of each to ensure access as well as enable temporary access. The create_shared_link_with_settings allows you to do all these things. You can set permissions with 'requested_visibility' and set this to public or team-member only, and temporary access with 'expires' passing in the timestamp of when you want the link to expire. 

Since this will be a public link from the customer to the consumer, it may be best to utilize temporary access and expiring the link after X amount of time. You could alternatively create a link with a password and share that password. However, consumers could still share that password.