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This page offers a glossary on key terms and concepts used in the PartyKit documentation.

Durable Object

A piece of code running at the edge (worker) with persistent state that is infinitely scaleable (from Cloudflare). It is best suited for real time collaborative applications. Learn more.


A single server instance - in other words, a single Durable Object.


An instance code definition of the server.


A static code definition of the server which runs in a separate worker before connecting to the Party.


An instance of a party, distinguishable by a unique id. For example, you may have a user party and every user will have its own id (which is reflected in the URL: /parties/:party/:room-id - and with an example: /parties/user/ada).


A single Durable Object, also called a β€œParty” in PartyKit.