@dbemowsk All right, so we all agree about the superiority of the json over the MQTT in term of synchronous acknowledgement. This is why I'm asking to mgaman whether I can send commands to the sonoff using json, having in the same time the MQTT features : status report, command, and his new wifi features. I'm sorry if it is a native feature, having read the official doc It seems that chosing one protocol disable the others.
EDIT : I have my answer, I read the source code, there is only the MQTT feature on mgaman's version. I wish I had this wifi MQTT management in addition to the original espeasy code.