rxpoweredup/src/middleware/message-logging-middleware.js

A Typescript RxJS-based library for controlling LEGO Powered UP hubs & peripherals.

import { formatMessageForDump } from '../helpers';
export class MessageLoggingMiddleware {
    logger;
    logMessageTypes;
    logMessageTypesSet;
    constructor(logger, logMessageTypes) {
        this.logger = logger;
        this.logMessageTypes = logMessageTypes;
        this.logMessageTypesSet = new Set(logMessageTypes === 'all' ? [] : logMessageTypes);
    }
    handle(originalMessage) {
        if (this.logMessageTypes === 'all' || this.logMessageTypesSet.has(originalMessage.header.messageType)) {
            const formattedMessage = formatMessageForDump(originalMessage);
            this.logger.debug(formattedMessage);
        }
        return originalMessage;
    }
}