Shared WebSocket message class

ws-message.ts

export enum WebSocketMessageType { 
    PING = 'ping',
    ECHO = 'echo'
}

export class WebSocketMessage {

    public msg_type: WebSocketMessageType
    public data: Object

    constructor(msg_type: WebSocketMessageType, data: Object) {

        this.msg_type = msg_type
        this.data = data
    }

    public static parse(message: string): WebSocketMessage {

        try {
            let x: Object = JSON.parse(message)
            return new WebSocketMessage(x['msg_type'], x['data'] ?? {})
        }
        catch (e) { console.log(e) }
    }

    public toString() {

        return JSON.stringify({ msg_type: this.msg_type, data: this.data })
    }
}