125 lines
2.8 KiB
Go
125 lines
2.8 KiB
Go
package main
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import (
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"context"
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"log"
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"net/http"
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"os"
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"os/signal"
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"path"
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"time"
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"github.com/99designs/gqlgen/graphql/handler"
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"github.com/ravilushqa/otelgqlgen"
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"github.com/rs/cors"
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"golang.org/x/sync/errgroup"
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"github.com/sour-is/ev/api/gql_ev"
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"github.com/sour-is/ev/app/msgbus"
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"github.com/sour-is/ev/app/playground"
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"github.com/sour-is/ev/app/salty"
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"github.com/sour-is/ev/internal/graph/generated"
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"github.com/sour-is/ev/internal/logz"
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"github.com/sour-is/ev/pkg/es"
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diskstore "github.com/sour-is/ev/pkg/es/driver/disk-store"
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memstore "github.com/sour-is/ev/pkg/es/driver/mem-store"
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"github.com/sour-is/ev/pkg/es/driver/streamer"
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)
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const AppName string = "sour.is-ev"
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func main() {
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ctx, cancel := signal.NotifyContext(context.Background(), os.Interrupt, os.Kill)
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go func() {
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<-ctx.Done()
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defer cancel()
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}()
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ctx, stop := logz.Init(ctx, AppName)
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defer stop()
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Mup, err := logz.Meter(ctx).SyncInt64().UpDownCounter("up")
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if err != nil {
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log.Fatal(err)
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}
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Mup.Add(ctx, 1)
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if err := run(ctx); err != nil && err != http.ErrServerClosed {
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log.Fatal(err)
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}
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}
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func run(ctx context.Context) error {
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g, ctx := errgroup.WithContext(ctx)
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{
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ctx, span := logz.Span(ctx)
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diskstore.Init(ctx)
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memstore.Init(ctx)
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es, err := es.Open(ctx, env("EV_DATA", "file:data"), streamer.New(ctx))
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if err != nil {
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span.RecordError(err)
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return err
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}
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s := http.Server{
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Addr: env("EV_HTTP", ":8080"),
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}
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saltySVC, err := salty.New(ctx, es, path.Join(env("EV_BASE_URL", "http://localhost" + s.Addr), "inbox"))
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if err != nil {
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span.RecordError(err)
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return err
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}
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msgbusSVC, err := msgbus.New(ctx, es)
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if err != nil {
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span.RecordError(err)
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return err
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}
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res, err := gql_ev.New(ctx, msgbusSVC, saltySVC)
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if err != nil {
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span.RecordError(err)
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return err
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}
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gql := handler.NewDefaultServer(generated.NewExecutableSchema(generated.Config{Resolvers: res}))
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gql.Use(otelgqlgen.Middleware())
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mux := http.NewServeMux()
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mux.Handle("/", playground.Handler("GraphQL playground", "/gql"))
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mux.Handle("/gql", logz.Htrace(res.ChainMiddlewares(gql), "gql"))
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mux.Handle("/metrics", logz.PromHTTP(ctx))
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mux.Handle("/inbox/", logz.Htrace(http.StripPrefix("/inbox/", msgbusSVC), "inbox"))
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mux.Handle("/.well-known/salty/", logz.Htrace(saltySVC, "lookup"))
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s.Handler = cors.AllowAll().Handler(mux)
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log.Print("Listen on ", s.Addr)
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span.AddEvent("begin listen and serve")
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g.Go(s.ListenAndServe)
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g.Go(func() error {
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<-ctx.Done()
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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return s.Shutdown(ctx)
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})
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span.End()
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}
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return g.Wait()
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}
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func env(name, defaultValue string) string {
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if v := os.Getenv(name); v != "" {
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log.Println("# ", name, " = ", v)
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return v
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}
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return defaultValue
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}
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