Implementing a ticket submission system that doesn't require log in

Hi I am working on adding a ticket submission web component, which will accept attachments uploads and create Zendesk Tickets, to a website. We want users to be able to submit tickets without logging in. For the ticket, we also want to specify the group_id, which is currently not supported by the Request endpoint, so I have to use the Ticket endpoint instead. 

After doing some research on Zendesk APIs, I have found a working solution.

• I can disable the authentication for uploads API, so there should be no problem allowing any users to upload attachments
• I haven't found a way to disable the authentication for ticket API. To make it work, I will make a proxy route to the ticket API on a backend, which will use the API token for authentication. The proxy route will get all the necessary fields from the frontend (subject, description, uploads token, tags, etc), and make a call to the ticket API.

Is the above solution seems appropriate? Any advice would be greatly appreciated. Thanks!