Our SaaS platform already runs several payment gateways flawlessly under CodeIgniter; I now need TransactWorld added with the same streamlined approach. I will supply the full TransactWorld API documentation—its flow is simple, relies only on an API-Key for authentication, and we process a single currency. The job is to wire TransactWorld into the existing payment module so that it behaves exactly like the other gateways: one central settings page for the credentials, no per-tenant webhook requirements, and the familiar success / failure callbacks we already expose to the rest of the app. The current codebase is clean CodeIgniter, so I expect the new controller, model, and view snippets to follow the same style and naming conventions. Deliverables • New TransactWorld integration class(es) plugged into our gateway abstraction layer • Admin-side form to save the API-Key and any mandatory endpoint fields • Front-end payment flow matching our existing gateways, including success and error handling • A brief implementation note explaining where you touched the code and how to update code in the future • Proof of at least one successful test transaction in our staging environment If you’ve previously implemented custom gateways in CodeIgniter, this should be straightforward. I’ll give you source access and sample credentials the moment we agree on a start time, and I’m happy to answer any domain questions while you work.