ejabberd - Comments for "How to send message to group of users?"

sinha.archit wrote: I was

asyraf — Wed, 08 Nov 2017 04:46:28 +0000

sinha.archit wrote:

I was able to send message to a single client using the command:
ejabberdctl send_message chat 192.168.33.50 user1@192.168.33.50 "subject" "message from server"
(where 192.168.33.50 is the IP address of the machine running ejabberd)

hi sinha.archit. i have a problem to use the "send_message" command on my ejabberd server. When i use the command, it return nothing. The receiver did not receive any message from admin. May i know how u did that? is it any configuration needed?

1. Yes, that is enough. 2.A)

badlop — Thu, 18 May 2017 21:11:08 +0000

1. Yes, that is enough.

2.A) Send XMPP messages to specific XMPP addresses, see https://docs.ejabberd.im/admin/configuration/#mod-announce

2.B) Send XMPP messages to the new multicast service, with some additional TO, CC, BCC elements, see example messages in https://xmpp.org/extensions/xep-0033.html

First try all this using an XMPP client. If you are happy with the results, then you can investigate how to perform those tasks with ejabberdctl programatically. I imagine "ejabberdctl send_message" will work.

Thanks for the response. I am

sinha.archit — Tue, 16 May 2017 10:26:17 +0000

Thanks for the response.
I am just starting out on ejabberd and have a few more questions.

1) How exactly do I use the methods A) and C) ( that is mod_annouce and mod_multicast). I have the following lines in my ejabberd config file (ejabberd.yml) under the heading "modules:"
mod_announce: # recommends mod_adhoc
access: announce
and
mod_multicast: {} ( this was commented earlier, I uncommented and restarted the server).
Is that all that is required to enable these two modules?

2)Once these modules are enabled, what command/method can I use to actually send message to all users(in case of mod_announce) or to multiple users(in case of mod_multicast). Meaning my question basically is what is the equivalent of ejabberdctl send_message for multiple users. I had a look at all the options of ejabberdctl and could not find anything.

3) My use case is basically to send push notifications to clients using ejabberd. So I may need to send notifications to either one, many or all devices and therefore I don't think I can use the approach B since the server would decide which clients to send to, the clients won't know before hand and therefore they cannot join MUC room .

The Shared Roster Group

badlop — Fri, 05 May 2017 10:52:23 +0000

The Shared Roster Group feature is designed for sharing roster contacts and presence, not messages. It seems a cool idea, by the way.

I can think three ways:
A) If you want to send to all the accounts in the server, use mod_announce

B) If you just want to send to a specific list of users, they should have joined a MUC room, then you can send a message to that room, and the server delivers the message to all the room occupants.

C) If you enable mod_multicast, you can send the message to the multicast service and provide the multiple destinations as CC, see https://xmpp.org/extensions/xep-0033.html