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Added example web-app service

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Example web-app required provided the ability to render html.
This commit is contained in:
Lee Brown
2019-05-18 18:06:10 -04:00
parent b40d389579
commit 308fee852c
19 changed files with 1400 additions and 22 deletions
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28
example-project/cmd/web-api/main.go
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@ -45,14 +45,14 @@ func main() {
// =========================================================================
// Logging
log := log.New(os.Stdout, "WEB_APP : ", log.LstdFlags|log.Lmicroseconds|log.Lshortfile)
log := log.New(os.Stdout, "WEB_API : ", log.LstdFlags|log.Lmicroseconds|log.Lshortfile)
// =========================================================================
// Configuration
var cfg struct {
Web struct {
APIHost string `default:"0.0.0.0:3000" envconfig:"API_HOST"`
HTTP struct {
Host string `default:"0.0.0.0:3001" envconfig:"HTTP_HOST"`
DebugHost string `default:"0.0.0.0:4000" envconfig:"DEBUG_HOST"`
ReadTimeout time.Duration `default:"5s" envconfig:"READ_TIMEOUT"`
WriteTimeout time.Duration `default:"5s" envconfig:"WRITE_TIMEOUT"`
@ -164,10 +164,12 @@ func main() {
//
// /debug/vars - Added to the default mux by the expvars package.
// /debug/pprof - Added to the default mux by the net/http/pprof package.
go func() {
log.Printf("main : Debug Listening %s", cfg.Web.DebugHost)
log.Printf("main : Debug Listener closed : %v", http.ListenAndServe(cfg.Web.DebugHost, http.DefaultServeMux))
}()
if cfg.HTTP.DebugHost != "" {
go func() {
log.Printf("main : Debug Listening %s", cfg.HTTP.DebugHost)
log.Printf("main : Debug Listener closed : %v", http.ListenAndServe(cfg.HTTP.DebugHost, http.DefaultServeMux))
}()
}
// =========================================================================
// Start API Service
@ -178,10 +180,10 @@ func main() {
signal.Notify(shutdown, os.Interrupt, syscall.SIGTERM)
api := http.Server{
Addr: cfg.Web.APIHost,
Addr: cfg.HTTP.Host,
Handler: handlers.API(shutdown, log, masterDB, authenticator),
ReadTimeout: cfg.Web.ReadTimeout,
WriteTimeout: cfg.Web.WriteTimeout,
ReadTimeout: cfg.HTTP.ReadTimeout,
WriteTimeout: cfg.HTTP.WriteTimeout,
MaxHeaderBytes: 1 << 20,
}
@ -191,7 +193,7 @@ func main() {
// Start the service listening for requests.
go func() {
log.Printf("main : API Listening %s", cfg.Web.APIHost)
log.Printf("main : API Listening %s", cfg.HTTP.Host)
serverErrors <- api.ListenAndServe()
}()
@ -207,13 +209,13 @@ func main() {
log.Printf("main : %v : Start shutdown..", sig)
// Create context for Shutdown call.
ctx, cancel := context.WithTimeout(context.Background(), cfg.Web.ShutdownTimeout)
ctx, cancel := context.WithTimeout(context.Background(), cfg.HTTP.ShutdownTimeout)
defer cancel()
// Asking listener to shutdown and load shed.
err := api.Shutdown(ctx)
if err != nil {
log.Printf("main : Graceful shutdown did not complete in %v : %v", cfg.Web.ShutdownTimeout, err)
log.Printf("main : Graceful shutdown did not complete in %v : %v", cfg.HTTP.ShutdownTimeout, err)
err = api.Close()
}