API Reference > imodeljs-common > RpcInterface > RpcProtocolEvent RpcProtocolEvent Enumeration RPC protocol event types. Members Name Value Description BackendErrorOccurred BackendErrorReceived BackendReportedNotFound BackendReportedPending BackendResponseCreated ConnectionAborted ConnectionErrorReceived RequestCreated RequestReceived ResponseLoaded ResponseLoading UnknownErrorReceived Defined in core/common/src/rpc/core/RpcConstants.ts Last Updated: 23 April, 2020