Merge pull request #716 from ahsan-javaiid/fix/rootstock-swaps

Enable `Changelly` swaps on Rootstock

Author: kvhnuke

packages/extension/src/providers/ethereum/libs/transaction/index.ts

@@ -105,7 +105,7 @@ class Transaction {
         feeHistory: {} as FeeHistoryResult,
       }));
     // Gets the number of transactions that they will have sent by the next pending block
-    const nonce = await this.web3.getTransactionCount(this.tx.from, 'pending');
+    const nonce = await this.web3.getTransactionCount(this.tx.from.toLowerCase(), 'pending'); // web3 rejects rootstock checksum addr so use lowercase addr
     if (!isFeeMarketNetwork) {
       // Legacy transaction
       const gasPrice = await this.web3.getGasPrice();

packages/swap/src/providers/changelly/index.ts

@@ -133,7 +133,7 @@ class Changelly extends ProviderClass {
 
       if (
         cur.enabledFrom &&
-        cur.fixRateEnabled &&
+        (cur.fixRateEnabled || cur.protocol === "RBTC") && // Allow RBTC as native currency for gas fees and swaps
         cur.token &&
         changellyToNetwork[cur.blockchain] === this.network
       ) {