This is a small utility we wrote for ourselves internally.
Mail merge for Facebook Messenger.
$ npm install -g messenger_merge
Usage: messenger_merge [options]
Options:
-h, --help output usage information
-V, --version output the version number
-m, --message [msg] Message to send
-a, --access-token [token] Facebook access token
Messenger Merge expects a list of Facebook user ids from stdin.
See LICENSE.