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datadog.go
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datadog.go
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package datadog
import (
"context"
datadog "github.com/americanas-go/ignite/datadog/dd-trace-go.v1"
"github.com/americanas-go/log"
"google.golang.org/grpc"
grpctrace "gopkg.in/DataDog/dd-trace-go.v1/contrib/google.golang.org/grpc"
)
// Register registers a new datadog plugin for grpc server.
func Register(ctx context.Context) []grpc.ServerOption {
o, err := NewOptions()
if err != nil {
return nil
}
h := NewDatadogWithOptions(o)
return h.Register(ctx)
}
// Datadog represents datadog plugin for grpc server.
type Datadog struct {
options *Options
}
// NewDatadogWithOptions returns a new datadog plugin with options.
func NewDatadogWithOptions(options *Options) *Datadog {
return &Datadog{options: options}
}
// NewDatadogWithConfigPath returns a new datadog plugin with options from config path.
func NewDatadogWithConfigPath(path string, traceOptions ...grpctrace.Option) (*Datadog, error) {
o, err := NewOptionsWithPath(path, traceOptions...)
if err != nil {
return nil, err
}
return NewDatadogWithOptions(o), nil
}
// NewDatadog returns a new datadog plugin with default options.
func NewDatadog(traceOptions ...grpctrace.Option) *Datadog {
o, err := NewOptions(traceOptions...)
if err != nil {
log.Fatalf(err.Error())
}
return NewDatadogWithOptions(o)
}
// Register registers this datadog plugin for grpc server.
func (i *Datadog) Register(ctx context.Context) []grpc.ServerOption {
if !i.options.Enabled || !datadog.IsTracerEnabled() {
return nil
}
logger := log.FromContext(ctx)
logger.Debug("datadog interceptor successfully enabled in grpc server")
return []grpc.ServerOption{
grpc.ChainUnaryInterceptor(grpctrace.UnaryServerInterceptor(i.options.traceOptions...)),
grpc.ChainStreamInterceptor(grpctrace.StreamServerInterceptor(i.options.traceOptions...)),
}
}