From 25be867650de60ff13d4daa59e5bbac98ed07fa5 Mon Sep 17 00:00:00 2001
From: Kevin Pease <kevin@baseflow.com>
Date: Fri, 24 May 2024 13:13:18 +0200
Subject: [PATCH] Add cursor value check

---
 stellar_rust_sdk_derive/src/lib.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/stellar_rust_sdk_derive/src/lib.rs b/stellar_rust_sdk_derive/src/lib.rs
index 6e8c1df..e831474 100644
--- a/stellar_rust_sdk_derive/src/lib.rs
+++ b/stellar_rust_sdk_derive/src/lib.rs
@@ -12,6 +12,10 @@ pub fn pagination_macro(input: TokenStream) -> TokenStream {
         impl Paginatable for #struct_name {
             fn set_cursor(self, cursor: u32) -> Result<Self, String> {
                 // Always accept the cursor since it's non-optional in the setter
+                if cursor < 1 {
+                    return Err("Cursor must be greater than or equal to 1.".to_string());
+                }
+
                 Ok(Self { cursor: Some(cursor), ..self })
             }