logger

Documentation

Index

• Constants
• Variables
• func New(config ...Config) fiber.Handler
• type Buffer
• type Config
• type Data
• type LogFunc

Constants

const (
	TagPid               = "pid"
	TagTime              = "time"
	TagReferer           = "referer"
	TagProtocol          = "protocol"
	TagScheme            = "scheme"
	TagPort              = "port"
	TagIP                = "ip"
	TagIPs               = "ips"
	TagHost              = "host"
	TagMethod            = "method"
	TagPath              = "path"
	TagURL               = "url"
	TagUA                = "ua"
	TagLatency           = "latency"
	TagStatus            = "status"
	TagResBody           = "resBody"
	TagReqHeaders        = "reqHeaders"
	TagQueryStringParams = "queryParams"
	TagBody              = "body"
	TagBytesSent         = "bytesSent"
	TagBytesReceived     = "bytesReceived"
	TagRoute             = "route"
	TagError             = "error"
	TagReqHeader         = "reqHeader:"
	TagRespHeader        = "respHeader:"
	TagLocals            = "locals:"
	TagQuery             = "query:"
	TagForm              = "form:"
	TagCookie            = "cookie:"
	TagBlack             = "black"
	TagRed               = "red"
	TagGreen             = "green"
	TagYellow            = "yellow"
	TagBlue              = "blue"
	TagMagenta           = "magenta"
	TagCyan              = "cyan"
	TagWhite             = "white"
	TagReset             = "reset"
)

Logger variables

Variables

var ConfigDefault = Config{
	Next:              nil,
	Done:              nil,
	Format:            defaultFormat,
	TimeFormat:        "15:04:05",
	TimeZone:          "Local",
	TimeInterval:      500 * time.Millisecond,
	Output:            os.Stdout,
	BeforeHandlerFunc: beforeHandlerFunc,
	LoggerFunc:        defaultLoggerInstance,
	// contains filtered or unexported fields
}

ConfigDefault is the default config

Functions

func New

func New(config ...Config) fiber.Handler

New creates a new middleware handler

Types

type Buffer

type Buffer interface {
	Len() int
	ReadFrom(r io.Reader) (int64, error)
	WriteTo(w io.Writer) (int64, error)
	Bytes() []byte
	Write(p []byte) (int, error)
	WriteByte(c byte) error
	WriteString(s string) (int, error)
	Set(p []byte)
	SetString(s string)
	String() string
}

type Config

type Config struct {
	// Next defines a function to skip this middleware when returned true.
	//
	// Optional. Default: nil
	Next func(c fiber.Ctx) bool

	// Done is a function that is called after the log string for a request is written to Output,
	// and pass the log string as parameter.
	//
	// Optional. Default: nil
	Done func(c fiber.Ctx, logString []byte)

	// tagFunctions defines the custom tag action
	//
	// Optional. Default: map[string]LogFunc
	CustomTags map[string]LogFunc

	// Format defines the logging tags
	//
	// Optional. Default: [${time}] ${ip} ${status} - ${latency} ${method} ${path} ${error}
	Format string

	// TimeFormat https://programming.guide/go/format-parse-string-time-date-example.html
	//
	// Optional. Default: 15:04:05
	TimeFormat string

	// TimeZone can be specified, such as "UTC" and "America/New_York" and "Asia/Chongqing", etc
	//
	// Optional. Default: "Local"
	TimeZone string

	// TimeInterval is the delay before the timestamp is updated
	//
	// Optional. Default: 500 * time.Millisecond
	TimeInterval time.Duration

	// Output is a writer where logs are written
	//
	// Default: os.Stdout
	Output io.Writer

	// You can define specific things before the returning the handler: colors, template, etc.
	//
	// Optional. Default: beforeHandlerFunc
	BeforeHandlerFunc func(Config)

	// You can use custom loggers with Fiber by using this field.
	// This field is really useful if you're using Zerolog, Zap, Logrus, apex/log etc.
	// If you don't define anything for this field, it'll use default logger of Fiber.
	//
	// Optional. Default: defaultLogger
	LoggerFunc func(c fiber.Ctx, data *Data, cfg Config) error

	// DisableColors defines if the logs output should be colorized
	//
	// Default: false
	DisableColors bool
	// contains filtered or unexported fields
}

Config defines the config for middleware.

type Data

type Data struct {
	Pid           string
	ErrPaddingStr string
	ChainErr      error
	TemplateChain [][]byte
	LogFuncChain  []LogFunc
	Start         time.Time
	Stop          time.Time
	Timestamp     atomic.Value
}

Data is a struct to define some variables to use in custom logger function.

type LogFunc

type LogFunc func(output Buffer, c fiber.Ctx, data *Data, extraParam string) (int, error)