strogger/dist/examples/functional-usage.js

📊 A modern structured logging library with functional programming, duck-typing, and comprehensive third-party integrations

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.loggerWithSimpleFormatter = exports.timedFunction = exports.performanceMonitor = exports.loggerWithCustomTransport = exports.strogger = void 0;
// Functional Logger Usage Example: Demonstrates dependency injection, custom transport, performance monitor, and formatter duck-typing.
const index_1 = require("../index");
// Basic functional logger with dependency injection
const env = (0, index_1.getEnvironment)();
const formatter = (0, index_1.createJsonFormatter)();
const transport = (0, index_1.createConsoleTransport)({ formatter, level: index_1.LogLevel.DEBUG });
const strogger = (0, index_1.createLogger)({
    config: { serviceName: "my-service", stage: "dev" },
    transports: [transport],
    formatter,
    env,
});
exports.strogger = strogger;
// Custom transport using duck-typing
const customTransport = {
    log: (entry) => {
        console.log(`[CUSTOM] ${JSON.stringify(entry)}`);
    },
    setLevel: (level) => {
        console.log(`Setting custom transport level to ${level}`);
    },
    getLevel: () => index_1.LogLevel.INFO,
};
const loggerWithCustomTransport = (0, index_1.createLogger)({
    config: { serviceName: "service-with-custom-transport" },
    transports: [customTransport],
    formatter,
    env,
});
exports.loggerWithCustomTransport = loggerWithCustomTransport;
// Performance monitoring example
const performanceMonitor = (0, index_1.createPerformanceMonitor)();
exports.performanceMonitor = performanceMonitor;
const timedFunction = async () => {
    const timer = performanceMonitor.startTimer("myFunction");
    await new Promise((resolve) => setTimeout(resolve, 100));
    const metrics = timer({ userId: "123", operation: "data-processing" });
    console.log("Function completed:", metrics);
    return "result";
};
exports.timedFunction = timedFunction;
// Formatter duck-typing example
const simpleFormatter = {
    format: (entry) => `${entry.timestamp} [${entry.level}] ${entry.message}`,
};
const loggerWithSimpleFormatter = (0, index_1.createLogger)({
    config: { serviceName: "simple-formatter-service" },
    transports: [(0, index_1.createConsoleTransport)({ formatter: simpleFormatter })],
    formatter: simpleFormatter,
    env,
});
exports.loggerWithSimpleFormatter = loggerWithSimpleFormatter;
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