@vector-im/matrix-bot-sdk/src/logging/RichConsoleLogger.ts

TypeScript/JavaScript SDK for Matrix bots and appservices

import * as chalk from "chalk";

import { ILogger } from "./ILogger";

/* eslint-disable no-console */

/**
 * Prints to the console with colors and a format.
 * @category Logging
 */
export class RichConsoleLogger implements ILogger {
    protected chalkDebug = chalk.cyan;
    protected chalkInfo = chalk.green;
    protected chalkWarning = chalk.yellow;
    protected chalkError = chalk.bold.red;
    protected chalkTimestamp = chalk.grey;
    protected chalkModule = chalk.grey;

    protected getTimestamp(): string {
        const now = new Date(Date.now()).toUTCString();
        return this.chalkTimestamp(now);
    }

    public trace(module: string, ...messageOrObject: any[]) {
        console.trace(
            this.getTimestamp(),
            this.chalkDebug("[TRACE]"),
            this.chalkModule(`[${module}]`),
            ...messageOrObject,
        );
    }

    public debug(module: string, ...messageOrObject: any[]) {
        console.debug(
            this.getTimestamp(),
            this.chalkDebug("[DEBUG]"),
            this.chalkModule(`[${module}]`),
            ...messageOrObject,
        );
    }

    public error(module: string, ...messageOrObject: any[]) {
        console.error(
            this.getTimestamp(),
            this.chalkError("[ERROR]"),
            this.chalkModule(`[${module}]`),
            ...messageOrObject,
        );
    }

    public info(module: string, ...messageOrObject: any[]) {
        console.log(
            this.getTimestamp(),
            this.chalkInfo("[INFO]"),
            this.chalkModule(`[${module}]`),
            ...messageOrObject,
        );
    }

    public warn(module: string, ...messageOrObject: any[]) {
        console.warn(
            this.getTimestamp(),
            this.chalkWarning("[WARN]"),
            this.chalkModule(`[${module}]`),
            ...messageOrObject,
        );
    }
}

/* eslint-enable no-console */