Server & client options

The common options for createSuperLineServer(contract, options) and createSuperLineClient(contract, options). The authoritative, exhaustive set is generated from source — see @super-line/server and @super-line/client.

Server — createSuperLineServer

Option	Required	What it does
transports	✓	the client↔server wire(s) the server accepts
authenticate	✓	runs once per connection; returns { role, ctx } (throw to reject at handshake) — see Roles & auth
identify		map a connection to a stable user id (for presence + toUser)
serializer		custom wire codec — see Serialization
adapter		server↔server fan-out for multi-node (in-memory by default)
nodeName		a friendly node label surfaced in Control Center
collections		the row-collection backend (one per server)
crdtCollections		the CRDT document backend
policies		per-collection read/write policies (deny-by-default)
checkReferences		opt into advisory FK existence checks
onConnection		a per-connection hook ((conn, ctx) => void)

The inspector is now a plugin (@super-line/plugin-inspector), not a server option — add it via plugins: [...].

Client — createSuperLineClient

Option	Required	What it does
transport	✓	the client wire (the only line that changes between wires)
role	✓	narrows the surface to shared ∪ role; verified by the server's authenticate
params		handshake params, readable server-side as h.query.*
crdtCollections		the universal CRDT client engine (crdtCollectionsClient())
serializer		a codec matching the server's — see Serialization

See the API reference for every option and its exact type.