schema

• Message Contents
• msg.content.type = "text" // or edit
• msg.content.text.body
• User
• msg.sender.username
• Topics
• msg.channel.topic_name
• Teams
• msg.channel.name
• Topic Mentions
• msg.channel_mention (Either none, here or all)
• msg.channel_name_mentions
• Team Mentions
• msg.content.text.teamMentions
• User Mentions
• msg.content.type = "text"
• msg.at_mention_usernames
• Replied
• msg.content.type = "text"
• msg.content.text.replyTo
• Reactions
• msg.reactions.{{Reaction Name}}

PUT keybase-*/_mapping
{
  "properties": {
    "msg.channel.topic_name": { 
      "type":     "text",
      "fielddata": true
    },
    "msg.content.type": { 
      "type":     "text",
      "fielddata": true
    },
    "msg.sender.username": { 
      "type":     "text",
      "fielddata": true
    },
    "msg.content.reaction.b": { 
      "type":     "text",
      "fielddata": true
    },
    "msg.channel.name": { 
      "type":     "text",
      "fielddata": true
    },
    "msg.content.text.body": { 
      "type":     "text",
      "fielddata": true
    },
    "msg.conversation_id": { 
      "type":     "text",
      "fielddata": true
    }
  }
}

PUT keybase-*
{
  "mappings": {
    "properties": {
      "msg.content.text.body": { "type": "text" }
    }
  }
}