status-im/status-go

package logutils

import (
    "sync"

    "go.uber.org/zap"

    "github.com/ethereum/go-ethereum/log"
)

var (
    _zapLogger     *zap.Logger
    _initZapLogger sync.Once
)

// ZapLogger creates a custom zap.Logger which will forward logs
// to status-go logger.
func ZapLogger() *zap.Logger {
    _initZapLogger.Do(func() {
        var err error
        _zapLogger, err = NewZapLoggerWithAdapter(log.Root())
        if err != nil {
            panic(err)
        }
    })
    return _zapLogger
}