tunnelmole/src/telemetry/message.ts

Tunnelmole, an open source ngrok alternative. Instant public URLs for any http/https based application. Available as a command line application or as an NPM dependency for your code. Stable and maintained. Good test coverage. Works behind firewalls

interface Message {
    type: string,
    data: {
        [key: string]: unknown 
    }
}

export { Message }