Generierte UUID in einen asynchronen Speicher schreiben

main.go

@@ -18,13 +18,16 @@ func main() {
 		log.Fatalln(err)
 	}
 
+	uuidChan := make(chan string)
+	defer close(uuidChan)
+
 	mux.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static/"))))
 	mux.HandleFunc("/", server.DisplayTable(db))
 	mux.HandleFunc("/search/", server.DisplayResults(db))
 	mux.HandleFunc("/new-briefing/", server.DisplayForm(&i))
 	mux.HandleFunc("/add-participant/", server.AddParticipant(&i))
 	mux.HandleFunc("/submit-form/", server.SubmitForm(db, &i, &j))
-	mux.HandleFunc("/generate-uuid/", server.GenerateUUID())
+	mux.HandleFunc("/generate-uuid/", server.GenerateUUID(uuidChan))
 
 	log.Fatalln(http.ListenAndServe(":8080", mux))
 }

packages/data/questionaires.go

@@ -0,0 +1 @@
+package data

packages/server/server.go

@@ -7,7 +7,6 @@ import (
 	"html/template"
 	"log"
 	"net/http"
-
 	"streifling.com/jason/sicherheitsunterweisung/packages/data"
 	"streifling.com/jason/sicherheitsunterweisung/packages/types"
 )
@@ -73,11 +72,12 @@ func SubmitForm(db *data.DB, i, j *int64) http.HandlerFunc {
 		if err != nil {
 			_ = fmt.Errorf("SubmitForm: db.ReadAll(): %v\n", err)
 		}
+
 		template.Must(template.ParseFiles("templates/table.html")).Execute(w, bs)
 	}
 }
 
-func GenerateUUID() http.HandlerFunc {
+func GenerateUUID(ch chan<- string) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		bs := make([]byte, 4)
 
@@ -86,6 +86,9 @@ func GenerateUUID() http.HandlerFunc {
 			_ = fmt.Errorf("GenerateUUID: rand.Read(bs): %v\n", err)
 		}
 
-		template.Must(template.ParseFiles("templates/form.html")).ExecuteTemplate(w, "uuid", hex.EncodeToString(bs))
+		uuid := hex.EncodeToString(bs)
+		ch <- uuid
+
+		template.Must(template.ParseFiles("templates/form.html")).ExecuteTemplate(w, "uuid", uuid)
 	}
 }