npm install gateway-getnet

Use to make payment:

var gatewayGetnet = require('gateway-getnet');

function checkout(body) {
    gatewayGetnet.payment(body, (err, result) => {
        console.log(err, result)
    })
}

{
"order_id": INTEGER,
"authentication": {
    "sellerId": STRING,
    "authorization": STRING,
    "ipAddress": STRING,
    "deviceId": STRING
},
"customer": {
    "id": STRING,
    "name": STRING,
    "email": STRING,
    "document_type": STRING,
    "document_number": STRING
},
"credit": {
    "amount": FLOAT,
    "number_installments": INTEGER,
    "card": {
        "holder_name": STRING,
        "number": STRING,
        "security_code": STRING,
        "brand": STRING,
        "expiration": STRING
    }
}