/
app.go
98 lines (81 loc) · 2.63 KB
/
app.go
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package app
import (
"net"
"os"
"os/signal"
"syscall"
"time"
h2 "net/http"
"github.com/d7561985/questions/delivery/http"
"github.com/d7561985/questions/internal/tr"
"github.com/d7561985/questions/repository/filerepo"
"github.com/d7561985/questions/repository/memcache"
"github.com/d7561985/questions/repository/translate"
"github.com/d7561985/questions/usecase/simple"
"github.com/joho/godotenv"
"github.com/opentracing/opentracing-go/log"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/prometheus/common/version"
"github.com/rs/zerolog"
zl "github.com/rs/zerolog/log"
"github.com/uber/jaeger-client-go"
"github.com/urfave/cli/v2"
)
const (
ucTimeOut = time.Second * 5 // ToDo: move ot Env
paramFile = "file"
)
var runFlags = []cli.Flag{
&cli.StringFlag{
Name: paramFile,
Value: "questions.json",
Usage: "file inside data folder",
Aliases: []string{"f"},
//Required: true,
},
}
func run(ctx *cli.Context) error {
logger := tr.NewZero(&zl.Logger)
logger.LogFields(zerolog.InfoLevel,
log.String("build", version.BuildContext()), log.String("version", version.Info()),
log.String("event", "start"))
if err := godotenv.Load(".env"); err != nil {
logger.LogFields(zerolog.ErrorLevel, log.Error(err), log.String("event", "load .env file"))
}
go func() {
if err := h2.ListenAndServe(os.Getenv("PROMETHEUS_HTTP_ADDR"), promhttp.Handler()); err != nil {
logger.LogFields(zerolog.FatalLevel, log.String("event", "prometheus"), log.Error(err))
}
}()
// WIP: for delivery and repository should be own trace instances.
trace, closer := jaeger.NewTracer("WIP", jaeger.NewConstSampler(false), jaeger.NewNullReporter())
defer closer.Close()
listen, err := net.Listen("tcp", os.Getenv("DELIVERY_HTTP_ADDR"))
if err != nil {
logger.LogFields(zerolog.FatalLevel, log.String("addr", os.Getenv("DELIVERY_HTTP_ADDR")),
log.Error(err))
return err
}
repo := filerepo.New(logger, trace)
if err = repo.Load(ctx.String(paramFile)); err != nil {
logger.LogFields(zerolog.FatalLevel, log.Error(err))
return err
}
trnsl, err := translate.New(os.Getenv("GOOGLE_APPLICATION_PROJECT_ID"), trace, ucTimeOut)
if err != nil {
logger.LogFields(zerolog.InfoLevel, log.Error(err))
}
uc := simple.NewService(repo, trnsl, memcache.New(), logger, ucTimeOut)
deliver := http.New(logger, uc, trace)
go deliver.Serve(listen)
s := make(chan os.Signal, 1)
signal.Notify(s, syscall.SIGTERM, os.Interrupt)
<-s
deliver.Stop()
if err := repo.Close(); err != nil {
logger.LogFields(zerolog.ErrorLevel, log.Error(err))
return err
}
// ToDo: cache or repo instances should also stop option
return nil
}