add opt_ins to preview request

crates/sargon/fixtures/models/gateway/transaction/request_preview.json

@@ -24,5 +24,9 @@
 		}
 	],
 	"start_epoch_inclusive": 51652,
-	"tip_percentage": 0
+	"tip_percentage": 0,
+	"opt_ins":
+	{
+		"radix_engine_toolkit_receipt": true
+	}
 }

crates/sargon/src/gateway_api/models/logic/request/transaction/preview/mod.rs

@@ -1,5 +1,7 @@
+mod opt_ins;
 mod request_flags;
 mod transaction_preview;
 
+pub use opt_ins::*;
 pub use request_flags::*;
 pub use transaction_preview::*;

crates/sargon/src/gateway_api/models/logic/request/transaction/preview/opt_ins.rs

@@ -0,0 +1,29 @@
+use crate::prelude::*;
+
+impl TransactionPreviewRequestOptIns {
+    pub fn new(radix_engine_toolkit_receipt: bool) -> Self {
+        Self {
+            radix_engine_toolkit_receipt,
+        }
+    }
+}
+
+impl Default for TransactionPreviewRequestOptIns {
+    fn default() -> Self {
+        Self::new(true)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[allow(clippy::upper_case_acronyms)]
+    type SUT = TransactionPreviewRequestOptIns;
+
+    #[test]
+    fn default_value() {
+        let sut = SUT::default();
+        assert!(sut.radix_engine_toolkit_receipt);
+    }
+}

crates/sargon/src/gateway_api/models/logic/request/transaction/preview/transaction_preview.rs

@@ -31,6 +31,7 @@ impl TransactionPreviewRequest {
             flags: flags
                 .into()
                 .unwrap_or(TransactionPreviewRequestFlags::default()),
+            opt_ins: TransactionPreviewRequestOptIns::default(),
         }
     }
 }

crates/sargon/src/gateway_api/models/types/request/transaction/preview/mod.rs

@@ -1,5 +1,7 @@
+mod opt_ins;
 mod request_flags;
 mod transaction_preview;
 
+pub use opt_ins::*;
 pub use request_flags::*;
 pub use transaction_preview::*;

crates/sargon/src/gateway_api/models/types/request/transaction/preview/opt_ins.rs

@@ -0,0 +1,15 @@
+use crate::prelude::*;
+
+#[derive(
+    Clone,
+    Copy,
+    Debug,
+    PartialEq,
+    Eq,
+    Serialize,
+    Deserialize, /* Deserialize so we can test roundtrip of JSON vectors */
+)]
+pub struct TransactionPreviewRequestOptIns {
+    /** This flag controls whether the preview response will include a Radix Engine Toolkit serializable receipt or not. */
+    pub(crate) radix_engine_toolkit_receipt: bool,
+}

crates/sargon/src/gateway_api/models/types/request/transaction/preview/transaction_preview.rs

@@ -36,4 +36,7 @@ pub(crate) struct TransactionPreviewRequest {
     pub(crate) signer_public_keys: Vec<GWPublicKey>,
 
     pub(crate) flags: TransactionPreviewRequestFlags,
+
+    /** A set of flags to configure the response of the transaction preview. */
+    pub(crate) opt_ins: TransactionPreviewRequestOptIns,
 }

crates/sargon/tests/integration/main.rs

@@ -57,8 +57,6 @@ mod integration_tests {
         assert!(epoch > Epoch::from(0));
     }
 
-    // Commented until GW 1.7.2 is released (which has `radix_engine_toolkit_receipt` inside the the Transaction Review response)
-    /*
     #[actix_rt::test]
     async fn dry_run_transaction() {
         // ARRANGE
@@ -132,7 +130,6 @@ mod integration_tests {
             )])
         );
     }
-     */
 
     async fn submit_tx_use_faucet(
         private_key: impl Into<PrivateKey>,