modified: internal/server/server.go

new file:   internal/utils/oauth_utils.go
add utils oauth state generate

serv_golang_rest_api/internal/utils/oauth_utils.go

@@ -0,0 +1,14 @@
+// utils/oauth_utils.go
+package utils
+
+import (
+	"crypto/rand"
+	"fmt"
+)
+
+// GenerateState generates a random state string for OAuth
+func GenerateState() string {
+    b := make([]byte, 16)
+    rand.Read(b)
+    return fmt.Sprintf("%x", b)
+}