# Distributed Commerce ## Docs - [BigCommerce](https://docs.comet.rocks/merchant/bigcommerce.md) - [Magento 2](https://docs.comet.rocks/merchant/magento.md) - [Salesforce](https://docs.comet.rocks/merchant/salesforce.md) - [Shopify](https://docs.comet.rocks/merchant/shopify.md) - [📱Apps](https://docs.comet.rocks/resources/apps.md): Integrate with Comet via Apps - [🛡️ Authentication & Authorization](https://docs.comet.rocks/resources/authentication/authentication.md): Securely access Comet API resources using API keys or JWT tokens, ensuring both authentication and authorization. - [Retrieve a Product by ID](https://docs.comet.rocks/resources/catalog/by_id.md): Fetch detailed information about a specific product using its unique identifier in the Comet API. - [🔎 Search for Products](https://docs.comet.rocks/resources/catalog/prod_search.md): Discover products in the Comet API using a variety of filters to narrow down your search. - [👕 Retrieve a Product by SKU](https://docs.comet.rocks/resources/catalog/sku.md): Fetch detailed information about a specific product using its SKU in the Comet API. - [Apply addresses to cart](https://docs.comet.rocks/resources/checkout/address.md): Apply shipping and billing addresses to cart - [Add or remove products](https://docs.comet.rocks/resources/checkout/cart_add.md): Add or remove products as needed - [Create a cart](https://docs.comet.rocks/resources/checkout/cart_create.md): Everything starts with the cart creation - [Add Discount to Cart](https://docs.comet.rocks/resources/checkout/cart_disc.md): Enhance your cart by applying coupon codes to specific bags - [Carts and Bags](https://docs.comet.rocks/resources/checkout/carts.md): Shopping Carts and Bags are important concepts in Comet's checkout API - [Error Handling](https://docs.comet.rocks/resources/checkout/errors.md): Understanding and addressing errors during the checkout process. - [Create Payment Intent](https://docs.comet.rocks/resources/checkout/payment.md): There are currently two methods for applying a guest payment method to a cart... - [Retrieve and Apply Shipping Methods](https://docs.comet.rocks/resources/checkout/shipping.md): Shipping methods are required for merchants to determine how to deliver the order to the shopper. Shipping methods are chosen by the shopper. - [Submit Cart](https://docs.comet.rocks/resources/checkout/submit.md): When you cart is ready for submission you can request confirmation from the shopper and submit the order. - [📃 Pagination](https://docs.comet.rocks/resources/pagination.md): Efficiently navigate and retrieve data in manageable chunks using Comet API’s pagination mechanism.