extension key:value based message consume filter.
sdk allows to specify extension $key and its expected $value. Before deliver one message to message handler, sdk check if extensionJson[$key]==$value in message's extension header. if target topic does not support extension message, filter does not apply.
extension key:value based message consume filter. sdk allows to specify extension $key and its expected $value. Before deliver one message to message handler, sdk check if extensionJson[$key]==$value in message's extension header. if target topic does not support extension message, filter does not apply.