Create API for MODx / ShopKeeper

There is a need to create and API for MODx / ShopKeeper to fetch categories of goods and goods itself, create new goods and goods categories and change existing goods and goods categories. The API should have following methods: - Auth with MODx account, user/password supplied, the token generated to use with other methods, or define auth method you'll be able to implement. - GetProduct(id) - get product information by product id. Get all possible information from MODx / ShopKeeper. - GetProducts() - get all products. All possible information. - GetProductCategories() - get all product categories from MODx / ShopKeeper, with id, name, parent id - PutProduct(...) - put product. if id not null - update product information, otherwise - create. Article and Name of product are required parameters. Other - optional. Returns product id. - PutProductCategory(...) - create or change product categorie. Name and parent id should be supplied. Returns product category id.