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grpc.go
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grpc.go
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package grpc
import (
"context"
v1 "github.com/alexfalkowski/bezeichner/api/bezeichner/v1"
v1c "github.com/alexfalkowski/bezeichner/client/v1/config"
"github.com/alexfalkowski/go-service/transport/grpc"
"github.com/alexfalkowski/go-service/transport/grpc/telemetry/tracer"
"github.com/alexfalkowski/go-service/transport/http"
"go.opentelemetry.io/otel/metric"
"go.uber.org/fx"
"go.uber.org/zap"
)
// RegisterParams for gRPC.
type RegisterParams struct {
fx.In
Lifecycle fx.Lifecycle
GRPCServer *grpc.Server
HTTPServer *http.Server
ClientConfig *v1c.Config
Logger *zap.Logger
Tracer tracer.Tracer
Meter metric.Meter
Server v1.ServiceServer
}
// Register server.
func Register(params RegisterParams) error {
ctx := context.Background()
v1.RegisterServiceServer(params.GRPCServer.Server, params.Server)
opts := []grpc.ClientOption{
grpc.WithClientLogger(params.Logger), grpc.WithClientTracer(params.Tracer),
grpc.WithClientMetrics(params.Meter), grpc.WithClientRetry(¶ms.ClientConfig.Retry),
grpc.WithClientUserAgent(params.ClientConfig.UserAgent),
}
if params.ClientConfig.Security.Enabled {
sec, err := grpc.WithClientSecure(params.ClientConfig.Security)
if err != nil {
return err
}
opts = append(opts, sec)
}
conn, err := grpc.NewClient(ctx, params.ClientConfig.Host, opts...)
if err != nil {
return err
}
if err := v1.RegisterServiceHandler(ctx, params.HTTPServer.Mux, conn); err != nil {
return err
}
params.Lifecycle.Append(fx.Hook{
OnStart: func(_ context.Context) error {
conn.ResetConnectBackoff()
return nil
},
OnStop: func(_ context.Context) error {
return conn.Close()
},
})
return nil
}