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feat: surface OpenTelemetry export errors and config #178

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feat: surface OpenTelemetry export errors and config #178

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30 changes: 23 additions & 7 deletions app/app.go
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Original file line number Diff line number Diff line change
Expand Up @@ -61,6 +61,10 @@ import (
"github.com/sygmaprotocol/sygma-core/relayer/message"
"github.com/sygmaprotocol/sygma-core/store"
"github.com/sygmaprotocol/sygma-core/store/lvldb"

"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/metric"
"go.opentelemetry.io/otel/metric/noop"
)

var Version string
Expand Down Expand Up @@ -111,13 +115,25 @@ func Run() error {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()

mp, err := observability.InitMetricProvider(context.Background(), configuration.RelayerConfig.OpenTelemetryCollectorURL)
panicOnError(err)
defer func() {
if err := mp.Shutdown(context.Background()); err != nil {
log.Error().Msgf("Error shutting down meter provider: %v", err)
}
}()
otel.SetErrorHandler(otel.ErrorHandlerFunc(func(err error) {
log.Error().Err(err).Msg("OpenTelemetry SDK error")
}))

var mp metric.MeterProvider
if url := configuration.RelayerConfig.OpenTelemetryCollectorURL; url == "" {
log.Warn().Msg("OpenTelemetry disabled: collector URL not configured")
mp = noop.NewMeterProvider()
} else {
log.Info().Str("url", url).Msg("Initializing OpenTelemetry metric provider")
sdkMp, err := observability.InitMetricProvider(context.Background(), url)
panicOnError(err)
defer func() {
if err := sdkMp.Shutdown(context.Background()); err != nil {
log.Error().Msgf("Error shutting down meter provider: %v", err)
}
}()
mp = sdkMp
}
sygmaMetrics, err := metrics.NewSprinterMetrics(ctx, mp.Meter("relayer-metric-provider"), configuration.RelayerConfig.Env, configuration.RelayerConfig.Id, Version)
panicOnError(err)

Expand Down
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