var Gumroad = require("gumroad-api");
var gumroad = new Gumroad({
	token: "<your-gumroad-token>"
});

gumroad.listProducts()
.then(function(products) {
    ...
});

gumroad.createProduct({
	"name": "..."
})
.then(function(product) {
    ...
});

gumroad.getProduct("my-product-id")
.then(function(product) {
    ...
});

gumroad.updateProduct("my-product-id", {
	// infos
})
.then(function(product) {
    // Product has been updated
});

gumroad.toggleProduct("my-product-id", false)
.then(function(product) {
    // Product has been disabled/enabled
});

gumroad.deleteProduct("my-product-id")
.then(function() {
    // Product has been deleted
});

gumroad.listOffers("product-id")
.then(function(offers) {
    ...
});

gumroad.createOffer("product-id", {
    "name": "..."
})
.then(function(offer) {
    ...
});

gumroad.getOffer("product-id", "offer-id")
.then(function(offer) {
    ...
});

gumroad.deleteOffer("product-id", "offer-id")
.then(function() {
    // Offer has been deleted
});

gumroad.updateOffer("product-id", "offer-id", {
    // infos
})
.then(function(offer) {
    // Offer has been updated
});

gumroad.verifyLicense("my-product-id", "license-key")
.then(function(license) {
    // License is OK
}, function() {
    // License verification failed
});

gumroad.listSales("after-date", "before-date", "page-num")
.then(function(sales) {
    ...
});

gumroad.getSale("sale-id")
.then(function(sale) {
    ...
});