sendmatrix

#!/bin/bash

# Adjust homserver, room, and accesstoken to your particular setup
# Script is expecting data to be piped in on STDIN
# Example:
# echo "some text" | sendmatrix

msgtype=m.text
homeserver=<homeserver>
room=<room id>
accesstoken=<access token>

curl -XPOST -d "$( jq -Rsc --arg msgtype "$msgtype" '{$msgtype, body:.}')" "https://$homeserver/_matrix/client/r0/rooms/$room/send/m.room.message?access_token=$accesstoken"