Package shop is an eCommerce API used for publishing, listing, filtering and checkout of articles. This API is accessible through the gRPC protocol. The documentation is based on protobuf generated code. The protobuf file can be found at: https://github.com/moapis/shop/blob/master/shop.proto. More information on gRPC: https://grpc.io/docs/. Protocol buffers: https://developers.google.com/protocol-buffers/docs/overview.