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Add NATS message header

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This commit is contained in:
Søren Rasmussen 2022-07-29 23:53:55 +02:00
parent 609fdfb31a
commit 76b83896ed
3 changed files with 24 additions and 9 deletions
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1
go.mod
View file

@ -8,6 +8,7 @@ require (
github.com/d2r2/go-i2c v0.0.0-20191123181816-73a8a799d6bc
github.com/fsnotify/fsnotify v1.5.4
github.com/getsentry/sentry-go v0.13.0
github.com/gofrs/uuid v4.2.0+incompatible
github.com/nats-io/nats.go v1.16.0
github.com/pkg/errors v0.9.1
github.com/prometheus/client_golang v1.12.2

2
go.sum
View file

@ -97,6 +97,8 @@ github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V
github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/gofrs/uuid v4.2.0+incompatible h1:yyYWMnhkhrKwwr8gAOcOCYxOOscHgDS9yZgBrnJfGa0=
github.com/gofrs/uuid v4.2.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=

28
internal/dwingest/nats.go
View file

@ -13,6 +13,7 @@ import (
"git.joco.dk/sng/fermentord/pkg/temperature"
"git.joco.dk/sng/fermentord/pkg/tilt"
"github.com/getsentry/sentry-go"
"github.com/gofrs/uuid"
"github.com/nats-io/nats.go"
)
@ -21,6 +22,7 @@ type DWIngest struct {
chState chan controllers.ChamberState
hub *sentry.Hub
serial int64
}
func NewDWIngest() *DWIngest {
@ -62,16 +64,16 @@ func (p *DWIngest) Run(ctx context.Context, wg *sync.WaitGroup, js nats.JetStrea
for {
select {
case reading := <-p.chTemperatureReading:
publish(config.NATS.Subject.Temp, js, p.hub, reading)
p.publish(config.NATS.Subject.Temp, js, reading)
case state := <-p.chState:
publish(config.NATS.Subject.State, js, p.hub, State{
p.publish(config.NATS.Subject.State, js, State{
Time: time.Now().UTC(),
State: controllers.ChamberStateMap[state],
})
case t := <-tilt.C:
publish(config.NATS.Subject.Tilt, js, p.hub, Tilt{
p.publish(config.NATS.Subject.Tilt, js, Tilt{
Time: time.Now().UTC(),
Color: string(t.Color()),
Gravity: t.Gravity(),
@ -84,19 +86,29 @@ func (p *DWIngest) Run(ctx context.Context, wg *sync.WaitGroup, js nats.JetStrea
}
}
func publish(subject string, js nats.JetStream, hub *sentry.Hub, reading any) error {
func (p *DWIngest) publish(subject string, js nats.JetStream, reading any) error {
b, err := json.Marshal(reading)
if err != nil {
hub.CaptureException(err)
p.hub.CaptureException(err)
log.Printf("Error marshaling JSON: %v", err)
return err
}
_, err = js.Publish(subject, b, nats.AckWait(5*time.Second))
msgID, err := uuid.NewV7(uuid.MillisecondPrecision)
if err != nil {
hub.CaptureException(err)
p.hub.CaptureException(err)
log.Print(err)
return err
}
msg := nats.NewMsg(subject)
msg.Header.Add("Nats-Msg-Id", msgID.String())
msg.Data = b
_, err = js.PublishMsg(msg, nats.AckWait(5*time.Second))
if err != nil {
p.hub.CaptureException(err)
log.Print(err)
return err
}
return err
return nil
}