logpack/dist/index.js

A lightweight and zero dependency logging package for React and Next.js.

import { isServer } from './shared/lib';
import { LogLevel } from './types';
class Logpack {
    constructor() {
        throw new Error('Logpack is a static class and cannot be instantiated.');
    }
    static configure(config) {
        this.globalConfig = Object.assign(Object.assign({}, this.globalConfig), config);
    }
    static info(message, config) {
        this.dispatch(message, LogLevel.LOG, config);
    }
    static warn(message, config) {
        this.dispatch(message, LogLevel.WARN, config);
    }
    static error(message, config) {
        this.dispatch(message, LogLevel.ERROR, config);
    }
    static dispatch(message, level, config) {
        const mergedConfig = Object.assign(Object.assign({}, this.globalConfig), config);
        if (!mergedConfig.display) {
            return;
        }
        const formattedMessage = this.formatMessage(message);
        const time = this.getTime(mergedConfig.locale, mergedConfig.dateFormat);
        let constructedMessage = '';
        if (mergedConfig.displayLevel) {
            const identifier = level === LogLevel.LOG ? 'INFO' : level;
            constructedMessage += `[${identifier.toUpperCase()}] `;
        }
        if (mergedConfig.displayDate) {
            constructedMessage += `[${time}] `;
        }
        constructedMessage += formattedMessage;
        if (mergedConfig.displayColor) {
            console[level](constructedMessage);
        }
        else {
            console.log(constructedMessage);
        }
    }
    static formatMessage(message) {
        if (isServer && typeof message === 'object') {
            return JSON.stringify(message, null, '\t');
        }
        return message;
    }
}
Logpack.globalConfig = {
    locale: 'en-US',
    dateFormat: {
        second: '2-digit',
        hour: '2-digit',
        minute: '2-digit',
        day: '2-digit',
        month: '2-digit',
        year: 'numeric',
    },
    display: true,
    displayColor: true,
    displayDate: true,
    displayLevel: true,
};
Logpack.getTime = (locale, dateFormat) => {
    const now = new Date();
    const formatted = now.toLocaleString(locale, dateFormat).replace(',', '');
    return formatted;
};
export default Logpack;