Can create user accounts

src/utils/mod.rs

@@ -1,3 +1,4 @@
 pub mod err;
 pub mod time;
-pub mod network_utils;
+pub mod network_utils;
+pub mod string_utils;

src/utils/string_utils.rs

@@ -0,0 +1,11 @@
+use rand::distributions::Alphanumeric;
+use rand::Rng;
+
+/// Generate a random string of a given size
+pub fn rand_str(len: usize) -> String {
+    rand::thread_rng()
+        .sample_iter(&Alphanumeric)
+        .map(char::from)
+        .take(len)
+        .collect()
+}