Create wasm.rs

smart-contract/wasm.rs

@@ -0,0 +1,32 @@
+// wasm.rs
+use wasm_bindgen::prelude::*;
+
+#[wasm_bindgen]
+pub struct SmartContract {
+    pub storage: Vec<u8>,
+}
+
+#[wasm_bindgen]
+impl SmartContract {
+    #[wasm_bindgen(constructor)]
+    pub fn new() -> Self {
+        Self { storage: Vec::new() }
+    }
+
+    #[wasm_bindgen(js_name = "store")]
+    pub fn store(&mut self, key: &str, value: &str) {
+        self.storage.push(format!("{}={}", key, value).as_bytes().to_vec());
+    }
+
+    #[wasm_bindgen(js_name = "retrieve")]
+    pub fn retrieve(&self, key: &str) -> Option<String> {
+        for entry in &self.storage {
+            let entry_str = std::str::from_utf8(entry).unwrap();
+            let parts: Vec<&str> = entry_str.split("=").collect();
+            if parts[0] == key {
+                return Some(parts[1].to_string());
+            }
+        }
+        None
+    }
+}