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semantic-conventions/docs/attributes-registry/signalr.md

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ASP.NET Core

SignalR Attributes

Attribute Type Description Examples Stability
signalr.connection.status string SignalR HTTP connection closure status. app_shutdown; timeout Stable
signalr.transport string SignalR transport type web_sockets; long_polling Stable

signalr.connection.status MUST be one of the following:

Value Description Stability
normal_closure The connection was closed normally. Stable
timeout The connection was closed due to a timeout. Stable
app_shutdown The connection was closed because the app is shutting down. Stable

signalr.transport has the following list of well-known values. If one of them applies, then the respective value MUST be used; otherwise, a custom value MAY be used.

Value Description Stability
server_sent_events ServerSentEvents protocol Stable
long_polling LongPolling protocol Stable
web_sockets WebSockets protocol Stable