The Twingle API extension uses profiles to process every incoming donation. When Twingle calls the TwingleDonation.submit API, provided by the Twingle API extension, the API assigns the donation to the corresponding profile by looking up the project id which comes with the call. The profile settings then specifies how the donation should be treated.
The Twingle Campaign extension puts an API wrapper around the TwingleDonation.submit API. This first it searches the call for either a project id, an event id or a campaign id and depending on the result, it searches CiviCRM for the
Furthermore, the API wrapper enables you to create soft credits for peer-to-peer event initiators.