Network.Wai.Middleware.RequestLogger

Basic stdout logging

logStdout :: Middleware

Production request logger middleware.

logStdoutDev :: Middleware

Development request logger middleware.

Flushes stdout on each request, which would be inefficient in production use. Use "logStdout" in production.

Create more versions

mkRequestLogger :: RequestLoggerSettings -> IO Middleware

data RequestLoggerSettings

RequestLoggerSettings is an instance of Default. See Data.Default for more information.

outputFormat, autoFlush, and destination are record fields for the record type RequestLoggerSettings, so they can be used to modify settings values using record syntax.

Instances

Default RequestLoggerSettings

outputFormat :: RequestLoggerSettings -> OutputFormat

Default value: Detailed True.

autoFlush :: RequestLoggerSettings -> Bool

Only applies when using the Handle constructor for destination.

Default value: True.

destination :: RequestLoggerSettings -> Destination

Default: Handle stdout.

data OutputFormat

Constructors

Apache IPAddrSource

Detailed Bool

use colors?

CustomOutputFormat OutputFormatter

CustomOutputFormatWithDetails OutputFormatterWithDetails

type OutputFormatter = ZonedDate -> Request -> Status -> Maybe Integer -> LogStr

type OutputFormatterWithDetails = ZonedDate -> Request -> Status -> Maybe Integer -> NominalDiffTime -> [ByteString] -> Builder -> LogStr

data Destination

Constructors

Handle Handle

Logger LoggerSet

Callback Callback

type Callback = LogStr -> IO ()

data IPAddrSource :: *

Source from which the IP source address of the client is obtained.

Constructors

FromSocket

From the peer address of the HTTP connection.

FromHeader

From X-Real-IP: or X-Forwarded-For: in the HTTP header.

FromFallback

From the peer address if header is not found.