app.json

{
    "name": "Facebook Messenger Bot",
    "description": "Facebook messenger bot for answering coding questions",
    "repository": "https://github.com/waitingcheung/messenger-bot",
    "logo": "https://node-js-sample.herokuapp.com/node.png",
    "keywords": ["node", "express", "github", "wit", "Facebook"],
    "env": {
        "WIT_TOKEN": {
            "description": "Server Access Token from wit.ai (see your wit app settings).",
            "required": true
        },
        "FB_PAGE_TOKEN": {
            "description": "Facebook Page Token from https://developers.facebook.com/apps/",
            "required": true
        },
        "FB_VERIFY_TOKEN": {
            "description": "Facebook Verification Token. Any string of your choice.",
            "required": true
        },
        "FB_PAGE_ID": {
            "description": "Facebook Page Id from the Page Info of your page.",
            "required": true
        }
    }
}