Feature Status

Current implementation status across all platforms. See Client Comparison for a detailed side-by-side comparison with code examples.

Feature	.NET Server	.NET Client	TypeScript	Swift	Kotlin
Invoke (call & wait)	Done	Done	Done	Done	Done
Send (fire & forget)	Done	Done	Done	Done	Done
Server→Client item streaming	Done	Done	Done	Done	Done
Client→Server item streaming	Done	Done	Done	Done	Done
CancellationToken propagation	Done	Done	Done	Done	Done
Authorization + token refresh	Done	Done	Done	Done	Done
Compile-time proxies	Done	Done (Source Generator)	N/A	Done (@HubProxy Macro)	Done (@HubProxy + KSP)
DynamicProxy fallback	Done	Done	N/A	N/A	N/A
File transfer (HTTP stream refs)	Done	Done	Done	Done	Done
Structured error types	Done	Done	Done	Done	Done
MessagePack protocol	Done	Done	Done	Done	Done
Observable/ChannelReader returns	Done	Done	—	N/A	N/A
Auto-reconnect	Done	Done	Done	Done	Done
Multiple transports (WS/SSE/LP)	Done	Done	Done	Done	Done
Logging	Done	Done	Done	Done (os_log)	Done (pluggable)