How do I append custom data in the body of a xmpp message in ejabberd
问题 I have set up a chat settong using Pidgin and Ejabberd.I have written down a custom module in ejabberd using user_send_packet : ejabberd_hooks:add(user_send_packet, _Host, ?MODULE, myMessage, 95), The function myMessage is as follows: myMessage({Packet, C2SState})-> PacketType=xmpp:get_name(Packet), case PacketType of <<"iq">>-> ok; <<"presence">>-> ok; <<"message">>-> Sum=2+2, ?INFO_MSG("Sum is ~p~n",[Sum]) end, {Packet,C2SState}. Basically what this function does is that whenever someone