logjet/dist/core/logger.js

Structured, async TypeScript logger with console, file, HTTP transports and NestJS support

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Logger = void 0;
const dayjs_1 = __importDefault(require("dayjs"));
class Logger {
    constructor(options = {}) {
        this.levels = ["debug", "info", "warn", "error"];
        this.transports = options.transports || [];
        this.level = options.level || "debug";
    }
    shouldLog(level) {
        return this.levels.indexOf(level) >= this.levels.indexOf(this.level);
    }
    async emit(level, message, context) {
        if (!this.shouldLog(level))
            return;
        const entry = {
            timestamp: (0, dayjs_1.default)().toISOString(),
            level,
            message,
            context,
        };
        await Promise.all(this.transports.map(async (transport) => {
            try {
                await transport.log(entry);
            }
            catch (err) {
                // optionally handle or queue failed transport logging
                console.error(`Transport error:`, err);
            }
        }));
    }
    debug(message, context) {
        return this.emit("debug", message, context);
    }
    info(message, context) {
        return this.emit("info", message, context);
    }
    warn(message, context) {
        return this.emit("warn", message, context);
    }
    error(message, context) {
        return this.emit("error", message, context);
    }
}
exports.Logger = Logger;
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