/
logger.go
44 lines (37 loc) · 1.04 KB
/
logger.go
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package logger
import (
"context"
"errors"
"net/http"
"github.com/tomasen/realip"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
type loggerKey struct{}
func WithLogger(ctx context.Context, logger *zap.Logger) context.Context {
return context.WithValue(ctx, loggerKey{}, logger)
}
func FromContext(ctx context.Context) (*zap.Logger, error) {
logger, ok := ctx.Value(loggerKey{}).(*zap.Logger)
if !ok {
return nil, errors.New("unable to get logger from context")
}
return logger, nil
}
func Middleware(baseLogger *zap.Logger) func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
logger := baseLogger.With(
zap.String("request_ip", realip.FromRequest(r)),
zap.String("endpoint", r.URL.Path),
)
next.ServeHTTP(w, r.WithContext(WithLogger(r.Context(), logger)))
})
}
}
func New() *zap.Logger {
cfg := zap.NewProductionConfig()
cfg.EncoderConfig.EncodeTime = zapcore.RFC3339NanoTimeEncoder
logger, _ := cfg.Build()
return logger
}