Log & Go

This is common logging utility tht is implemented only just for fun ?

I will be giving the details about how to use this utility to log every event occurred in your applications.

Steps

Step 1

go get github.com/yukselcodingwithyou/[email protected]

This command above is necessary for you to use this utility in your application.

Step 2

import logger "github.com/yukselcodingwithyou/logandgo"

Import the downloaded utility to your go files, as visualized above.

Step 3

Create a new logger with a format and level as you wish, format and level information should be like below.

  1. LogLevels

    • PANIC = 0
    • ERROR = 1
    • WARN = 2
    • INFO = 3
    • DEBUG = 4
  2. Formats

    • JSON
    • TEXT

Examples

  • JSON Logger Example

The example below is going to log in WARN level with JSON format. In case you have configured your log level in application level to be WARN, then our logger utility will not log
INFO or above levels but just PANIC, ERROR, WARN levels

package main
import logger "github.com/yukselcodingwithyou/logandgo"
func main() {
    jsonLogger := logger.NewLogger(logger.JSON, 2)
    jsonLogger.Debug(logger.LogFields{
        "title": "title",
        "reason": "debug",
        "payload": "payload",
    })
    jsonLogger.Error(logger.LogFields{
        "title": "title",
        "reason": "error",
        "payload": "payload",
    })
    jsonLogger.Info(logger.LogFields{
        "title": "title",
        "reason": "info",
        "payload": "payload",
    })
    jsonLogger.Panic(logger.LogFields{
        "title": "title",
        "reason": "panic",
        "payload": "payload",
    })
    jsonLogger.Warn(logger.LogFields{
        "title": "title",
        "reason": "warn",
        "payload": "payload",
    })
}
  • JSON Logger Output Example

    ERROR: 2021/11/21 16:12:00 main.go:14: {"payload":"payload","reason":"error","title":"title"}

    PANIC: 2021/11/21 16:12:00 main.go:26: {"payload":"payload","reason":"panic","title":"title"}

    WARNING: 2021/11/21 16:12:00 main.go:32: {"payload":"payload","reason":"warn","title":"title"}

  • TEXT Logger Example

The example below is going to log in ALL levels defined with TEXT format.

  package main
  
  import logger "github.com/yukselcodingwithyou/logandgo"

  func main() {

     textLogger := logger.NewLogger(logger.TEXT, 4)
    
     textLogger.Debug(logger.LogFields{
        "title": "title",
        "reason": "debug",
        "payload": "payload",
     })

     textLogger.Error(logger.LogFields{
        "title": "title",
        "reason": "error",
        "payload": "payload",
    })
     
     textLogger.Info(logger.LogFields{
        "title": "title",
        "reason": "info",
        "payload": "payload",
     })
    
     textLogger.Panic(logger.LogFields{
          "title": "title",
          "reason": "panic",
          "payload": "payload",
     })
    
     textLogger.Warn(logger.LogFields{
          "title": "title",
          "reason": "warn",
          "payload": "payload",
     })
  }
  • TEXT Logger Output Example

DEBUG: 2021/11/21 16:39:06 main.go:8: title=title reason=debug payload=payload

ERROR: 2021/11/21 16:39:06 main.go:14: reason=error payload=payload title=title

INFO: 2021/11/21 16:39:06 main.go:20: reason=info payload=payload title=title

PANIC: 2021/11/21 16:39:06 main.go:26: title=title reason=panic payload=payload

WARNING: 2021/11/21 16:39:06 main.go:32: title=title reason=warn payload=payload

GitHub

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