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options.go
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options.go
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package logger_http
import (
"context"
"net/http"
"time"
"github.com/gol4ng/logger"
)
type Options struct {
LoggerContextProvider LoggerContextProvider
LevelFunc CodeToLevel
}
// LoggerContextProvider function defines the default logger context values
type LoggerContextProvider func(*http.Request) *logger.Context
// CodeToLevel function defines the mapping between http.StatusCode and logger.Level
type CodeToLevel func(statusCode int) logger.Level
func newDefaultOptions() *Options {
return &Options{
LoggerContextProvider: func(request *http.Request) *logger.Context {
return logger.NewContext().Add("http_header", request.Header)
},
LevelFunc: func(statusCode int) logger.Level {
switch {
case statusCode < http.StatusBadRequest:
return logger.InfoLevel
case statusCode < http.StatusInternalServerError:
return logger.WarningLevel
}
return logger.ErrorLevel
},
}
}
func EvaluateClientOpt(opts ...Option) *Options {
optCopy := newDefaultOptions()
baseOptCopy := optCopy.LoggerContextProvider
optCopy.LoggerContextProvider = func(request *http.Request) *logger.Context {
ctx := baseOptCopy(request)
// TODO
//if reader, err := request.GetBody(); err == nil {
// ctx.Add("http_body", reader.Read())
//}
return ctx
}
for _, o := range opts {
o(optCopy)
}
return optCopy
}
func EvaluateServerOpt(opts ...Option) *Options {
optCopy := newDefaultOptions()
for _, o := range opts {
o(optCopy)
}
return optCopy
}
type Option func(*Options)
// WithLoggerContext will provide default logger context values
func WithLoggerContext(f LoggerContextProvider) Option {
return func(o *Options) {
o.LoggerContextProvider = f
}
}
// WithLevels customizes the function for the mapping between http.StatusCode and logger.Level
func WithLevels(f CodeToLevel) Option {
return func(o *Options) {
o.LevelFunc = f
}
}
func FeedContext(loggerContext *logger.Context, ctx context.Context, req *http.Request, startTime time.Time) *logger.Context {
if loggerContext == nil {
loggerContext = logger.NewContext()
}
loggerContext.
Add("http_method", req.Method).
Add("http_url", req.URL.String()).
Add("http_start_time", startTime.Format(time.RFC3339))
if d, ok := ctx.Deadline(); ok {
loggerContext.Add("http_request_deadline", d.Format(time.RFC3339))
}
return loggerContext
}