Socket.getTypeOfService method | Node.js net module | Bun
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BuildDocsReferenceGuidesBlogDiscord/
node:net/
Socket/
getTypeOfServiceMgetTypeOfService
method
net.Socket.getTypeOfServicegetTypeOfService(): number;
Returns the current Type of Service (TOS) field for IPv4 packets or Traffic Class for IPv6 packets for this socket.
setTypeOfService() may be called before the socket is connected; the value will be cached and applied when the socket establishes a connection. getTypeOfService() will return the currently set value even before connection.
On some platforms (e.g., Linux), certain TOS/ECN bits may be masked or ignored, and behavior can differ between IPv4 and IPv6 or dual-stack sockets. Callers should verify platform-specific semantics.
@returns
The current TOS value.
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