Local NOSTR Relay Architecture
The Local NOSTR Relay serves a dual purpose:
- on the one hand, it makes interacting between cooperating modules extremely simple and uniform,
- on the other, it allows for all the messages posted therein to be later (or parallelly) published ot external NOSTR relays for auditing.
Internally, the Local NOSTR Relay is implemented thusly:
where:
- Local NOSTR Relay: is the local NOSTR relay where NOSTR events are published.
- Read NOSTR Replica: these are clusters of NOSTR relays that serve as read-only replicas.
- C: the externally-subscribed clients.
Note how this keeps the load on the write-relay relatively low, requiring only as many REQ subscriptions as are established by the Internal Modules, and as many replication streams as there are read-only replicas.
The image above shows a simple, single-level replication structure, one could just as easily cascade read-only replicas in a tree structure so as to keep outgoing channels to a minimum in each specific relay; we judge that to only complicate exposition in this case, but large-scale implementations may very well require this.