hyperion.ng/libsrc/jsonserver/schema/schema.json

{
    "type":"object",
    "required":true,
    "properties":{
        "command": {
            "type" : "string",
            "required" : true,
            "enum" : ["color", "image", "effect", "serverinfo", "clear", "clearall", "transform"]
        }
    }
}