To integrate Flutterwave with Redeemware, 

1) Go to Integrations >> Payment Integration

2) Click on the Connect button as shown in the image below. 

3) Enter the Public Key, Secret Key and Encryption Key in the provided fields and then click on Save button

4) Once the Flutterwave payment gateway is integrated, the button will be changed to Connected.

To get the API details from the Flutterwave

1) Login to the Flutterwave account and click on the setting -> API , as shown in the image below

You can generate new keys by using the Generate New Keys button

2) Copy the Keys from API  section and paste it in the Redeemware Integration.