Build opencart payment ex

Open cart Payment Integration • We need to create Opencart Extension for payment gatway. • We have app like Phonepay. • I will provide all API for same. Function Requirement 1. Function Requirement 1. When user comes to our site, he will be have one option for making payment thought our application or by direct from his card to merchant account which is on our App. 2. On Payment page if user select this payment option. He/she will enter his phone number and Pin and amount will be deducted from his wallet. 3. Once payment is received in wallet Order will get conformed. • I need extension for 3.0.3.6, 3.0.3.5, 3.0.3.3, 3.0.3.2