Name Registry

.. index:: name registry

Name Registry

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.. _name_registry:

.. warning::

This is example code for learning purposes. Do not use in production without thorough review and testing.

A minimal name registry that maps names to addresses. Once a name is registered, it cannot be changed.

.. literalinclude:: ../../examples/name_registry/name_registry.vy :language: vyper :linenos:

This pattern is useful for:

• ENS-like name services
• Service discovery
• Any first-come-first-served registration system

The assert self.registry[name] == empty(address) check ensures names cannot be overwritten.