// wasi-cloud Blobstore service definition
interface blobstore {
    use container.{container};
    use types.{error, container-name, object-id};

    // creates a new empty container
    create-container: func(name: container-name) -> result<container, error>;

    // retrieves a container by name
    get-container: func(name: container-name) -> result<container, error>;

    // deletes a container and all objects within it
    delete-container: func(name: container-name) -> result<_, error>;

    // returns true if the container exists
    container-exists: func(name: container-name) -> result<bool, error>;

    // copies (duplicates) an object, to the same or a different container.
    // returns an error if the target container does not exist.
    // overwrites destination object if it already existed.
    copy-object: func(src: object-id, dest: object-id) -> result<_, error>;

    // moves or renames an object, to the same or a different container
    // returns an error if the destination container does not exist.
    // overwrites destination object if it already existed.
    move-object: func(src:object-id, dest: object-id) -> result<_, error>;
}