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file_mention message event

A file was mentioned in a channel

Compatibility: RTM

    "type": "message",
    "subtype": "file_mention",
    "ts": "1358877455.000010",
    "text": "<@cal> mentioned a file: <https:...7.png|7.png>",
    "file": {...},
    "user": "U2147483697"

A file_mention message is sent when a file is mentioned in a channel, group or direct message.

The file property contains a file object. The user property contains the User ID of the user that mentioned the file (which may differ from the user that uploaded the file).