

i have a local payment gateway and they have only WooCommerce extension and i contact them so they gave me (api-key and api-secret) ..
my idea is use this payment gateway to get (purchase deposit) for example if the client will make an order he has only to pay 5 dollars (purchase deposit) and the rest he will pay it after delevery'' just for confirmed the order ''...
can you help me for this plz ..
the payment gateway (github) shorturl.at/vAHM9
OC version 3.0.3.7