I am writing a chat application on app engine using xmpp. My idea is to allow users to chat to one another. I can get messages to send to a google talk account, by taking the logged in user and removing the @gmail.com part of the address and replacing it with @appid.appspotchat.com )so for example if the logged in user is bob@gmail.com, the jid used to send from will be bob@appid.appspotchat.com). You can then send messages to an google talk account, e.g. jeff@gmail.com.
My problem is in receiving the messages back again. The developer pages show how the app itself can receive messages to the appid@appspot.com jid, but how do you get it to receive messages to the appid.appspot.com jid, and then present these messages tp the logged in user? The overall idea is when a user logs in, I will retrieve thri contact list, get the presence of their contacts (replacing gmail.com with appid.appspotchat.com) then present the available contacts to the user.
If this is not possible, is there a way to let the logged in user chat to other users in a different way? Ive briefly looked at the channel api but i don’t think this is suitable?
You could use the Channel API to send a message down to a client when your server gets a message intended for that user. There’s no facility to direct a XMPP message directly to a user on your own page; the XMPP API is used to send messages to users signed in to XMPP clients (such as Gmail, Pidgin, etc).