logging

logging

Logging package based on zap and lumberjack

Quick Start

• Create file ./etc/conf/logging.json and config it.

{
    "default": {
        "filename": "root.log",
        "maxsize": 20,
        "maxage": 7,
        "maxbackups": 50,
        "localtime": true,
        "compress": true,
        "level": "warn",
        "env": "prod"
    },
    "root": {
        "filename": "root.log",
        "maxsize": 20,
        "maxage": 7,
        "maxbackups": 50,
        "localtime": true,
        "compress": true,
        "level": "warn",
        "env": "prod"
    },
    "proxy": {
        "filename": "proxy.log",
        "maxsize": 20,
        "maxage": 7,
        "maxbackups": 50,
        "localtime": true,
        "compress": true,
        "level": "warn"
    }
}

The root and proxy are the names of the loggers from which you can get the logger instance.

The range of level is debug, info, warn, error, dpanic, panic, fatal, and the value is from low to high.

• Usage

package main

import (
    "github.com/mallbook/logging"
    "go.uber.org/zap"
)

func main() {
    logger := logging.Logger("mylog") // or logger := logging.Logger("root")

    for i := 0; i < 100; i++ {
        logger.Info("hello world", zap.String("key", "value"), zap.Int("age", 20))
        logger.Debug("hello china", zap.String("key", "value"), zap.Int("age", 20))
        logger.Error("hello error", zap.String("key", "value"), zap.Int("age", 30))
    }

    proxyLogger := logging.Logger("proxy") 
    proxyLogger.Info("hello world", zap.String("key", "value"), zap.Int("age", 20))
}

Logo Level

// DebugLevel logs are typically voluminous, and are usually disabled in
// production.
DebugLevel Level = iota - 1

// InfoLevel is the default logging priority.
InfoLevel

// WarnLevel logs are more important than Info, but don't need individual
// human review.
WarnLevel

// ErrorLevel logs are high-priority. If an application is running smoothly,
// it shouldn't generate any error-level logs.
ErrorLevel

// DPanicLevel logs are particularly important errors. In development the
// logger panics after writing the message.
DPanicLevel

// PanicLevel logs a message, then panics.
PanicLevel

// FatalLevel logs a message, then calls os.Exit(1).
FatalLevel