Mini-app to showcase differences between id generators

cmd/sample-id-gen/main.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"flag"
+	"fmt"
+
+	"github.com/google/uuid"
+	"github.com/nrednav/cuid2"
+	"github.com/rs/xid"
+)
+
+var flagGenerator = flag.String(
+	"generator",
+	"xid",
+	"Which generator to showcase. Options: xid, cuid, uuid. Defaults to xid",
+)
+
+func main() {
+	flag.Parse()
+	generator := "xid"
+	switch *flagGenerator {
+	case "uuid":
+		generator = "uuid"
+	case "cuid":
+		generator = "cuid"
+	}
+	fmt.Printf("Generator used: %s\n", generator)
+	var gen func() string
+	switch generator {
+	case "xid":
+		gen = func() string { return xid.New().String() }
+	case "uuid":
+		gen = uuid.NewString
+	case "cuid":
+		gen = cuid2.Generate
+	}
+	fmt.Println("Generating 10 ids")
+	for range 10 {
+		fmt.Println(gen())
+	}
+}