CreateDonation handles POST requests to log a new food donation.

CreateDonationRequest handles the creation of a donation request.

GetDonationByID handles GET requests to retrieve a donation by its ID.

ListDonationRequests retrieves all donation requests.

ListDonations handles GET requests to retrieve all donations.

NewUserController creates a new UserController instance.

UpdateDonationRequestStatus handles updating the status of a donation request.

UploadDonationImage handles image uploads for donations.

UserController interface.