From f5ca56ef2d7608ef9dcedb95026e7b916bdb2c7b Mon Sep 17 00:00:00 2001
From: myyrakle <sssang97@naver.com>
Date: Tue, 27 Aug 2024 02:23:13 +0900
Subject: [PATCH] =?UTF-8?q?[#15]=20QueryStringDeserializer=20trait=20?=
 =?UTF-8?q?=EC=A0=95=EC=9D=98?=
MIME-Version: 1.0
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---
 rupring/src/request.rs   |  9 +++++++++
 rupring_macro/src/lib.rs | 14 ++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/rupring/src/request.rs b/rupring/src/request.rs
index 3a15fd1..9c2f7d4 100644
--- a/rupring/src/request.rs
+++ b/rupring/src/request.rs
@@ -27,6 +27,15 @@ impl Request {
     }
 }
 
+#[derive(Debug, Clone)]
+pub struct QueryString(pub Vec<String>);
+
+pub trait QueryStringDeserializer<T>: Sized {
+    type Error;
+
+    fn deserialize(&self) -> Result<T, Self::Error>;
+}
+
 #[derive(Debug, Clone)]
 pub struct ParamString(pub String);
 
diff --git a/rupring_macro/src/lib.rs b/rupring_macro/src/lib.rs
index ce448d4..e6d263d 100644
--- a/rupring_macro/src/lib.rs
+++ b/rupring_macro/src/lib.rs
@@ -893,6 +893,20 @@ pub fn derive_rupring_doc(item: TokenStream) -> TokenStream {
         .as_str();
     }
 
+    for field_name in query_field_names {
+        request_bind_code += format!(
+            r#"{field_name}: rupring::ParamString(
+                request.query_parameters["{field_name}"].clone()
+            ).
+                deserialize().
+                map_err(
+                    |_|Err(rupring::anyhow::anyhow!("{field_name} is invalid"))
+                )?,
+            "#
+        )
+        .as_str();
+    }
+
     request_bind_code += format!("}};").as_str();
 
     request_bind_code += "Ok(bound)";