Init

server/Logger.js

@@ -0,0 +1,50 @@
+const LOG_LEVEL = {
+  TRACE: 0,
+  DEBUG: 1,
+  INFO: 2,
+  WARN: 3,
+  ERROR: 4,
+  FATAL: 5
+}
+
+class Logger {
+  constructor() {
+    let env_log_level = process.env.LOG_LEVEL || 'TRACE'
+    this.LogLevel = LOG_LEVEL[env_log_level] || LOG_LEVEL.TRACE
+    this.info(`Log Level: ${this.LogLevel}`)
+  }
+
+  get timestamp() {
+    return (new Date()).toISOString()
+  }
+
+  trace(...args) {
+    if (this.LogLevel > LOG_LEVEL.TRACE) return
+    console.trace(`[${this.timestamp}] TRACE:`, ...args)
+  }
+
+  debug(...args) {
+    if (this.LogLevel > LOG_LEVEL.DEBUG) return
+    console.debug(`[${this.timestamp}] DEBUG:`, ...args)
+  }
+
+  info(...args) {
+    if (this.LogLevel > LOG_LEVEL.INFO) return
+    console.info(`[${this.timestamp}]  INFO:`, ...args)
+  }
+
+  warn(...args) {
+    if (this.LogLevel > LOG_LEVEL.WARN) return
+    console.warn(`[${this.timestamp}]  WARN:`, ...args)
+  }
+
+  error(...args) {
+    if (this.LogLevel > LOG_LEVEL.ERROR) return
+    console.error(`[${this.timestamp}] ERROR:`, ...args)
+  }
+
+  fatal(...args) {
+    console.error(`[${this.timestamp}] FATAL:`, ...args)
+  }
+}
+module.exports = new Logger()