159 lines
3.5 KiB
Go
159 lines
3.5 KiB
Go
// TrevStack HTTP Server
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package main
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import (
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"context"
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"embed"
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"errors"
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"fmt"
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"log"
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"log/slog"
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"net/http"
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"net/url"
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"os"
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"os/signal"
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"strings"
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"syscall"
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"time"
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"github.com/joho/godotenv"
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"github.com/stephenafamo/bob"
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"golang.org/x/net/http2"
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"golang.org/x/net/http2/h2c"
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"github.com/spotdemo4/trevstack/server/internal/database"
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"github.com/spotdemo4/trevstack/server/internal/handlers/client"
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"github.com/spotdemo4/trevstack/server/internal/handlers/file"
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"github.com/spotdemo4/trevstack/server/internal/handlers/item/v1"
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"github.com/spotdemo4/trevstack/server/internal/handlers/user/v1"
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"github.com/spotdemo4/trevstack/server/internal/interceptors"
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)
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var clientFS *embed.FS
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var dbFS *embed.FS
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func main() {
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logger := slog.New(slog.NewTextHandler(os.Stdout, nil))
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slog.SetDefault(logger)
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// Get env
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env, err := getEnv()
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if err != nil {
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log.Fatal(err.Error())
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}
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// Migrate database
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err = database.Migrate(env.DatabaseUrl, dbFS)
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if err != nil {
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log.Fatal(err.Error())
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}
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// Get database
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db := &bob.DB{}
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switch env.DatabaseType {
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case "postgres":
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log.Println("Using Postgres")
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db, err = database.NewPostgresConnection(env.DatabaseUrl)
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if err != nil {
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log.Fatalf("failed to connect to postgres: %v", err)
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}
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case "sqlite", "sqlite3":
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log.Println("Using SQLite")
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db, err = database.NewSQLiteConnection(env.DatabaseUrl)
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if err != nil {
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log.Fatalf("failed to connect to sqlite: %v", err)
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}
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default:
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log.Fatal("DB_TYPE must be either postgres or sqlite")
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}
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// Serve GRPC Handlers
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api := http.NewServeMux()
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api.Handle(interceptors.WithCORS(user.NewAuthHandler(db, env.Key)))
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api.Handle(interceptors.WithCORS(user.NewHandler(db, env.Key)))
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api.Handle(interceptors.WithCORS(item.NewHandler(db, env.Key)))
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// Serve web interface
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mux := http.NewServeMux()
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mux.Handle("/", client.NewClientHandler(env.Key, clientFS))
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mux.Handle("/file/", file.NewFileHandler(db, env.Key))
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mux.Handle("/grpc/", http.StripPrefix("/grpc", api))
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// Start server
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log.Printf("Starting server on :%s", env.Port)
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server := &http.Server{
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Addr: fmt.Sprintf(":%s", env.Port),
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Handler: h2c.NewHandler(mux, &http2.Server{}),
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}
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// Gracefully shutdown on SIGINT or SIGTERM
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sigs := make(chan os.Signal, 1)
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signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
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go func() {
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sig := <-sigs
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slog.Warn(fmt.Sprintf("Received signal %s, exiting", sig))
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// Close HTTP server
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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if err := server.Shutdown(ctx); err != nil {
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server.Close()
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}
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cancel()
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// Close database connection
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db.Close()
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}()
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if err := server.ListenAndServe(); err != nil {
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log.Fatal(err)
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}
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}
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type env struct {
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Port string
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Key string
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DatabaseType string
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DatabaseUrl *url.URL
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}
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func getEnv() (*env, error) {
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err := godotenv.Load()
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if err != nil {
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slog.Warn("Failed to load .env file, using environment variables")
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}
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// Create
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env := env{
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Port: os.Getenv("PORT"),
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Key: os.Getenv("KEY"),
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}
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// Validate
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if env.Port == "" {
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env.Port = "8080"
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}
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if env.Key == "" {
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return nil, errors.New("env 'key' not found")
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}
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// Validate DATABASE_URL
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dbstr := os.Getenv("DATABASE_URL")
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if dbstr == "" {
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return nil, errors.New("env 'DATABASE_URL' not found")
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}
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dbsp := strings.Split(dbstr, ":")
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dburl, err := url.Parse(dbstr)
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if err != nil || len(dbsp) < 2 {
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return nil, errors.New("env 'DATABASE_URL' formatted incorrectly")
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}
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env.DatabaseType = dbsp[0]
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env.DatabaseUrl = dburl
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return &env, nil
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}
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