README
¶
Logur error handler
Error handler using Logur.
Installation
go get emperror.dev/handler/logur
Usage
package main
import (
"github.com/goph/logur/adapters/logrusadapter"
"github.com/sirupsen/logrus"
logurhandler "emperror.dev/handler/logur"
)
func main() {
logger := logrusadapter.New(logrus.New())
handler := logurhandler.New(logger)
}
Development
When all coding and testing is done, please run the test suite:
make check
License
The MIT License (MIT). Please see License File for more information.
Documentation
¶
Overview ¶
Package logur provides an error handler using a Logur compatible logger.
Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type ErrorLogger ¶
type ErrorLogger interface {
// Error logs an Error event.
//
// Critical events that require immediate attention.
Error(msg string, fields ...map[string]interface{})
}
ErrorLogger is a subset of the Logur Logger and LoggerContext interfaces used for error logging.
type Handler ¶
type Handler struct {
// contains filtered or unexported fields
}
Handler logs errors using a Logur compatible logger.
func New ¶
func New(logger ErrorLogger) *Handler
New returns a new Handler.
Example ¶
package main
import (
"logur.dev/logur"
logurhandler "emperror.dev/handler/logur"
)
func main() {
logger := &logur.NoopLogger{}
_ = logurhandler.New(logger)
}
Output:
func WithStackInfo ¶
WithStackInfo enables annotating every error passing through the handler with the function name and file line of the stack trace's top frame (if one is found).
Example ¶
Maps are printed in key-sorted order as of Go 1.12 See https://golang.org/doc/go1.12#fmt
logger := newLogurLogger()
handler := logurhandler.WithStackInfo(logurhandler.New(logger))
err := errors.New("error")
handler.Handle(err)
Output: error map[file:example_go1_12_test.go:17 func:ExampleWithStackInfo]
func WithStackTrace ¶ added in v0.4.0
WithStackTrace enables annotating every error passing through the handler with stack trace (if one is found).
func (*Handler) Handle ¶
Handle records an error event and forwards it to the underlying logger.
Example ¶
package main
import (
"context"
"fmt"
"emperror.dev/errors"
logurhandler "emperror.dev/handler/logur"
)
type errorLogger struct{}
func (e *errorLogger) Error(msg string, fields ...map[string]interface{}) {
fmt.Println(msg)
if len(fields) > 0 && len(fields[0]) > 0 {
fmt.Println(fields[0])
}
}
func (e *errorLogger) ErrorContext(ctx context.Context, msg string, fields ...map[string]interface{}) {
fmt.Println(msg)
if len(fields) > 0 && len(fields[0]) > 0 {
fmt.Println(fields[0])
}
}
func newLogurLogger() *errorLogger {
return &errorLogger{}
}
func main() {
logger := newLogurLogger()
handler := logurhandler.New(logger)
err := errors.New("error")
handler.Handle(err)
}
Output: error
func (*Handler) HandleContext ¶ added in v0.4.0
HandleContext records an error event and forwards it to the underlying logger.
Example ¶
package main
import (
"context"
"fmt"
"emperror.dev/errors"
logurhandler "emperror.dev/handler/logur"
)
type errorLogger struct{}
func (e *errorLogger) Error(msg string, fields ...map[string]interface{}) {
fmt.Println(msg)
if len(fields) > 0 && len(fields[0]) > 0 {
fmt.Println(fields[0])
}
}
func (e *errorLogger) ErrorContext(ctx context.Context, msg string, fields ...map[string]interface{}) {
fmt.Println(msg)
if len(fields) > 0 && len(fields[0]) > 0 {
fmt.Println(fields[0])
}
}
func newLogurLogger() *errorLogger {
return &errorLogger{}
}
func main() {
logger := newLogurLogger()
handler := logurhandler.New(logger)
ctx := context.Background()
err := errors.New("error")
handler.HandleContext(ctx, err)
}
Output: error
Source Files