fix: to scope handling for client credentials test api

cmd/server/main.go

@@ -5,6 +5,7 @@ import (
 	"flag"
 	"log"
 	"net/http"
+	"strings"
 
 	"github.com/speakeasy-api/speakeasy-api-test-service/internal/acceptHeaders"
 	"github.com/speakeasy-api/speakeasy-api-test-service/internal/clientcredentials"
@@ -87,6 +88,9 @@ func main() {
 	bind := ":8080"
 	if bindArg != nil {
 		bind = *bindArg
+		if !strings.HasPrefix(bind, ":") {
+			bind = ":" + bind
+		}
 	}
 
 	ctx, cancel := context.WithCancel(context.Background())

internal/clientcredentials/service.go

@@ -45,7 +45,7 @@ func HandleTokenRequest(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	if !slices.Contains(scopes, "read") || !slices.Contains(scopes, "write") {
+	if !slices.Contains(scopes, "read") && !slices.Contains(scopes, "write") {
 		http.Error(w, "invalid_scope", http.StatusBadRequest)
 		return
 	}