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sentry.go
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sentry.go
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// Copyright © 2019 The Things Network Foundation, The Things Industries B.V.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package sentry implements a pkg/log.Handler that sends errors to Sentry
package sentry
import (
"github.com/getsentry/sentry-go"
sentryerrors "go.thethings.network/lorawan-stack/v3/pkg/errors/sentry"
"go.thethings.network/lorawan-stack/v3/pkg/log"
)
// Sentry is a log.Handler that sends errors to Sentry.
type Sentry struct{}
// New creates a new Sentry log middleware.
func New() log.Middleware {
return &Sentry{}
}
// Wrap an existing log handler with Sentry.
func (s *Sentry) Wrap(next log.Handler) log.Handler {
return log.HandlerFunc(func(entry log.Entry) (err error) {
if entry.Level() == log.ErrorLevel {
s.forward(entry)
}
err = next.HandleLog(entry)
return
})
}
func (s *Sentry) forward(e log.Entry) *sentry.EventID {
fields := e.Fields().Fields()
var err error
if namespaceField, ok := fields["namespace"]; ok {
switch namespaceField {
case "grpc", "web": // gRPC and web have their own Sentry integration.
return nil
}
}
if errField, ok := fields["error"]; ok {
if errField, ok := errField.(error); ok {
err = errField
}
}
evt := sentryerrors.NewEvent(err)
evt.Message = e.Message()
// Add log fields.
if fld, ok := err.(log.Fielder); ok {
errFields := fld.Fields()
for k, v := range fields {
// Filter out error fields.
if _, isErrField := errFields[k]; isErrField {
continue
}
evt.Extra[k] = v
}
} else {
for k, v := range fields {
evt.Extra[k] = v
}
}
return sentry.CaptureEvent(evt)
}