/
server.go
98 lines (79 loc) · 1.77 KB
/
server.go
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package server
import (
"context"
"errors"
"fmt"
"github.com/marcospereirampj/golang-open-telemetry/pkg/telemetry"
"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
"log"
"net/http"
"time"
"github.com/go-chi/chi"
"go.uber.org/fx"
)
type (
HTTPHandler interface {
Method() string
Pattern() string
http.Handler
}
RouterParams struct {
fx.In
Handlers []HTTPHandler `group:"handlers"`
}
)
func NewHTTPRouter(params RouterParams) *chi.Mux {
router := chi.NewRouter()
router.Get("/health", func(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, "healthy")
})
router.Route("/", func(r chi.Router) {
for _, handler := range params.Handlers {
r.Route(handler.Pattern(), func(subRoute chi.Router) {
subRoute.Method(handler.Method(), "/", handler)
})
}
})
return router
}
func StartHTTPServer(lifecycle fx.Lifecycle, router *chi.Mux) {
server := &http.Server{
Addr: ":8080",
Handler: otelhttp.NewHandler(router, "/"),
ReadTimeout: 5000 * time.Second,
WriteTimeout: 5000 * time.Second,
}
lifecycle.Append(fx.Hook{
OnStart: func(context.Context) error {
errs := make(chan error, 2)
otelShutdown, err := telemetry.SetupOTelSDK(context.Background())
if err != nil {
return err
}
defer func() {
//nolint:typecheck
err = errors.Join(err, otelShutdown(context.Background()))
}()
go func() {
log.Printf("Listening and serving HTTP on %v", server.Addr)
errs <- server.ListenAndServe()
}()
return err
},
OnStop: func(ctx context.Context) error {
return server.Shutdown(ctx)
},
})
}
func Serve() {
ServerDependencies := fx.Provide(
NewHTTPRouter)
app := fx.New(
fx.Options(
ServerDependencies,
HomeModule,
),
fx.Invoke(StartHTTPServer),
)
app.Run()
}