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grpc.go
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grpc.go
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package grpc
import (
"context"
"fmt"
"github.com/alexfalkowski/go-service/cache/redis"
sgrpc "github.com/alexfalkowski/go-service/transport/grpc"
"github.com/alexfalkowski/go-service/transport/grpc/trace/opentracing"
shttp "github.com/alexfalkowski/go-service/transport/http"
"github.com/alexfalkowski/go-service/version"
v1 "github.com/alexfalkowski/konfig/api/konfig/v1"
"github.com/alexfalkowski/konfig/server/config"
"github.com/alexfalkowski/konfig/source"
"go.uber.org/fx"
"go.uber.org/zap"
"google.golang.org/grpc"
)
// RegisterParams for gRPC.
type RegisterParams struct {
fx.In
GRPCServer *grpc.Server
HTTPServer *shttp.Server
GRPCConfig *sgrpc.Config
RedisConfig *redis.Config
Logger *zap.Logger
Tracer opentracing.Tracer
Configurator source.Configurator
Transformer *config.Transformer
Version version.Version
}
// Register server.
func Register(lc fx.Lifecycle, params RegisterParams) {
sparams := ServerParams{
RedisConfig: params.RedisConfig,
Configurator: params.Configurator,
Transformer: params.Transformer,
}
server := NewServer(sparams)
v1.RegisterServiceServer(params.GRPCServer, server)
var conn *grpc.ClientConn
lc.Append(fx.Hook{
OnStart: func(ctx context.Context) error {
conn, _ = sgrpc.NewClient(
sgrpc.ClientParams{Context: ctx, Host: fmt.Sprintf("127.0.0.1:%s", params.GRPCConfig.Port), Version: params.Version, Config: params.GRPCConfig},
sgrpc.WithClientLogger(params.Logger), sgrpc.WithClientTracer(params.Tracer), sgrpc.WithClientDialOption(grpc.WithBlock()),
)
return v1.RegisterServiceHandler(ctx, params.HTTPServer.Mux, conn)
},
OnStop: func(ctx context.Context) error {
return conn.Close()
},
})
}
// ServerParams for gRPC.
type ServerParams struct {
RedisConfig *redis.Config
Configurator source.Configurator
Transformer *config.Transformer
}
// NewServer for gRPC.
func NewServer(params ServerParams) v1.ServiceServer {
return &Server{conf: params.Configurator, trans: params.Transformer}
}