From 4763a1af051688d730c842a25f3eade72fa02e4e Mon Sep 17 00:00:00 2001
From: Mario J Maurello <marioj@purestake.com>
Date: Wed, 25 Oct 2023 16:41:38 +0200
Subject: [PATCH 1/2] Change paying token for vDOT transfers and adapt decimals
 query in destination chain

---
 packages/config/src/chains.ts                 |  2 +-
 .../config/src/configs/bifrostPolkadot.ts     |  8 ++++----
 .../src/getTransferData/getDestinationData.ts | 19 +++++++++++++++++--
 3 files changed, 22 insertions(+), 7 deletions(-)

diff --git a/packages/config/src/chains.ts b/packages/config/src/chains.ts
index cdcf7a37..6c719bc5 100644
--- a/packages/config/src/chains.ts
+++ b/packages/config/src/chains.ts
@@ -219,7 +219,7 @@ export const bifrostPolkadot = new Parachain({
   name: 'Bifrost',
   parachainId: 2030,
   ss58Format: 6,
-  ws: 'wss://hk.p.bifrost-rpc.liebi.com/ws',
+  ws: 'wss://eu.bifrost-polkadot-rpc.liebi.com/ws',
 });
 
 export const calamari = new Parachain({
diff --git a/packages/config/src/configs/bifrostPolkadot.ts b/packages/config/src/configs/bifrostPolkadot.ts
index f7542e73..f6d24020 100644
--- a/packages/config/src/configs/bifrostPolkadot.ts
+++ b/packages/config/src/configs/bifrostPolkadot.ts
@@ -59,11 +59,11 @@ export const bifrostPolkadotConfig = new ChainConfig({
       balance: BalanceBuilder().substrate().tokens().accounts(),
       destination: moonbeam,
       destinationFee: {
-        amount: 0.2,
-        asset: bnc,
-        balance: BalanceBuilder().substrate().system().account(),
+        amount: 0.01,
+        asset: vdot,
+        balance: BalanceBuilder().substrate().tokens().accounts(),
       },
-      extrinsic: ExtrinsicBuilder().xTokens().transferMultiCurrencies(),
+      extrinsic: ExtrinsicBuilder().xTokens().transfer(),
       fee: {
         asset: bnc,
         balance: BalanceBuilder().substrate().system().account(),
diff --git a/packages/sdk/src/getTransferData/getDestinationData.ts b/packages/sdk/src/getTransferData/getDestinationData.ts
index 1f59fd0b..ed56e1cc 100644
--- a/packages/sdk/src/getTransferData/getDestinationData.ts
+++ b/packages/sdk/src/getTransferData/getDestinationData.ts
@@ -46,7 +46,12 @@ export async function getDestinationData({
   const balanceAmount = zeroAmount.copyWith({ amount: balance });
   const { existentialDeposit } = polkadot;
 
-  const feeAmount = await getFee({ config: transferConfig, polkadot });
+  const feeAmount = await getFee({
+    address: destinationAddress,
+    config: transferConfig,
+    evmSigner,
+    polkadot,
+  });
   const minAmount = zeroAmount.copyWith({ amount: min });
 
   return {
@@ -59,16 +64,26 @@ export async function getDestinationData({
 }
 
 export interface GetFeeParams {
+  address: string;
   config: TransferConfig;
+  evmSigner?: EvmSigner;
   polkadot: PolkadotService;
 }
 
 export async function getFee({
+  address,
   config,
+  evmSigner,
   polkadot,
 }: GetFeeParams): Promise<AssetAmount> {
   const { amount, asset } = config.source.config.destinationFee;
-  const decimals = await polkadot.getAssetDecimals(asset);
+  const decimals = await getDecimals({
+    address,
+    asset,
+    config: config.destination.config,
+    evmSigner,
+    polkadot,
+  });
   const zeroAmount = AssetAmount.fromAsset(asset, {
     amount: 0n,
     decimals,

From 44e8fefa0950edecb83674cfed8fc84a872b908c Mon Sep 17 00:00:00 2001
From: Mario J Maurello <marioj@purestake.com>
Date: Wed, 25 Oct 2023 16:46:13 +0200
Subject: [PATCH 2/2] add changeset

---
 .changeset/orange-trainers-teach.md | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 .changeset/orange-trainers-teach.md

diff --git a/.changeset/orange-trainers-teach.md b/.changeset/orange-trainers-teach.md
new file mode 100644
index 00000000..338e6d80
--- /dev/null
+++ b/.changeset/orange-trainers-teach.md
@@ -0,0 +1,6 @@
+---
+'@moonbeam-network/xcm-config': patch
+'@moonbeam-network/xcm-sdk': patch
+---
+
+Change how we get decimals from assets in destination and change vDOT transfers paying asset