I recently had need to consume Interswitch WebPay API in order to accept card payments on my Laravel based project and I couldn’t find any related package on the web so I decided to create one and make it open source!
It’s available on GitHub.
I’ve written a complete installation and configuration guide: https://community.devs.ng/t/interswitch-webpay-integration-for-laravel-5/134
Happy coding. 