fix: fixes issue #2653 Cannot decode DataContractCreateV1 with WASM-DPP

packages/wasm-dpp/src/data_contract/data_contract.rs

@@ -415,12 +415,11 @@ impl DataContractWasm {
         self.clone()
     }
 
-    pub(crate) fn try_from_serialization_format(
+    pub(crate) fn try_from_serialization_format_with_platform_version(
         value: DataContractInSerializationFormat,
         full_validation: bool,
+        platform_version: &PlatformVersion,
     ) -> Result<Self, JsValue> {
-        let platform_version = PlatformVersion::first();
-
         DataContract::try_from_platform_versioned(
             value,
             full_validation,

packages/wasm-dpp/src/data_contract/state_transition/data_contract_create_transition/mod.rs

@@ -55,9 +55,24 @@ impl DataContractCreateTransitionWasm {
     }
 
     #[wasm_bindgen(js_name=getDataContract)]
-    pub fn get_data_contract(&self) -> DataContractWasm {
-        DataContractWasm::try_from_serialization_format(self.0.data_contract().clone(), false)
-            .expect("should convert from serialziation format")
+    pub fn get_data_contract(
+        &self,
+        protocol_version: Option<u32>,
+    ) -> Result<DataContractWasm, JsValue> {
+        // Use provided protocol version or latest if not specified
+        let platform_version = if let Some(version) = protocol_version {
+            PlatformVersion::get(version)
+                .map_err(ProtocolError::PlatformVersionError)
+                .with_js_error()?
+        } else {
+            PlatformVersion::latest()
+        };
+
+        DataContractWasm::try_from_serialization_format_with_platform_version(
+            self.0.data_contract().clone(),
+            false,
+            platform_version,
+        )
     }
 
     // #[wasm_bindgen(js_name=setDataContractConfig)]

packages/wasm-dpp/src/data_contract/state_transition/data_contract_update_transition/mod.rs

@@ -56,9 +56,24 @@ impl DataContractUpdateTransitionWasm {
     }
 
     #[wasm_bindgen(js_name=getDataContract)]
-    pub fn get_data_contract(&self) -> DataContractWasm {
-        DataContractWasm::try_from_serialization_format(self.0.data_contract().clone(), false)
-            .expect("should create data contract from serialized format")
+    pub fn get_data_contract(
+        &self,
+        protocol_version: Option<u32>,
+    ) -> Result<DataContractWasm, JsValue> {
+        // Use provided protocol version or latest if not specified
+        let platform_version = if let Some(version) = protocol_version {
+            PlatformVersion::get(version)
+                .map_err(ProtocolError::PlatformVersionError)
+                .with_js_error()?
+        } else {
+            PlatformVersion::latest()
+        };
+
+        DataContractWasm::try_from_serialization_format_with_platform_version(
+            self.0.data_contract().clone(),
+            false,
+            platform_version,
+        )
     }
 
     // #[wasm_bindgen(js_name=setDataContractConfig)]

packages/wasm-dpp/test/unit/dataContract/stateTransition/DataContractCreateTransition/DataContractCreateTransition.spec.js

@@ -46,6 +46,12 @@ describe('DataContractCreateTransition', () => {
 
       expect(result.toObject()).to.deep.equal(dataContract.toObject());
     });
+
+    it('should return Data Contract with specific protocol version', () => {
+      const result = stateTransition.getDataContract(1);
+
+      expect(result.toObject()).to.deep.equal(dataContract.toObject());
+    });
   });
 
   describe.skip('#toJSON', () => {