add invariant

packages/web/server/api/routers/bridge-transfer.ts

@@ -96,6 +96,14 @@ export const bridgeTransferRouter = createTRPCRouter({
       /** If the bridge takes longer than 10 seconds to respond, we should timeout that quote. */
       const quote = await timeout(quoteFn, 10 * 1000)();
 
+      // Basic circuit breaker to validate some invariants
+      // from input + given quote
+      if (input.fromAsset.address !== quote.input.address) {
+        throw new Error(
+          `Invalid quote: Expected fromAsset address ${input.fromAsset.address} but got ${quote.input.address} in quote`
+        );
+      }
+
       /**
        * Since transfer fee is deducted from input amount,
        * we overwrite the transfer fee asset to be the input