NewClientConn creates connection over session and observation.

NewDeleteRequest creates delete request.

NewGetRequest creates get request.

NewHandlerContainer factory.

NewMutexMap returns an initialized MutexMap.

NewObserveRequest creates observe request.

NewPostRequest creates post request.

NewPutRequest creates put request.

https://datatracker.ietf.org/doc/html/rfc7252#section-4.8.2.

ClientConn represents a virtual connection to a conceptual endpoint, to perform COAPs commands.

HandlerContainer for regirstration handlers by key.

MutexMap wraps a map of mutexes.

Observation represents subscription to resource on the server.

A ResponseWriter interface is used by an COAP handler to construct an COAP response.

Transmission is a threadsafe container for transmission related parameters.

Unlocker provides an Unlock method to release the lock.