62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
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// Command api is the HTTP entrypoint of the messenger backend.
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//
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// It wires configuration, logging and the HTTP server together and
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// supports graceful shutdown on SIGINT/SIGTERM.
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package main
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import (
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"context"
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"errors"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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"messenger/internal/platform/config"
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"messenger/internal/platform/logger"
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"messenger/internal/server"
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)
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func main() {
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log := logger.New()
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cfg, err := config.Load()
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if err != nil {
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log.Error("invalid configuration", "error", err)
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os.Exit(1)
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}
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httpServer := server.New(cfg, log)
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// Run the server in a goroutine so that shutdown can be triggered
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// from the signal handler below.
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go func() {
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log.Info("http server listening",
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"addr", cfg.HTTPAddr,
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"static_dir", cfg.StaticDir,
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"env", cfg.Environment,
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)
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if err := httpServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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log.Error("http server failed", "error", err)
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os.Exit(1)
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}
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}()
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// Wait for a termination signal, then drain in-flight requests.
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ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
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defer stop()
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<-ctx.Done()
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log.Info("shutting down")
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shutdownCtx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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if err := httpServer.Shutdown(shutdownCtx); err != nil {
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log.Error("graceful shutdown failed", "error", err)
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os.Exit(1)
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}
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log.Info("server stopped cleanly")
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}
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