refactored according to feedback

Author: brunopgalvao

.snippets/code/develop/interoperability/best-practices-for-teleporting-assets/account-existence.js

@@ -0,0 +1,15 @@
+const { ApiPromise, WsProvider } = require('@polkadot/api');
+const provider = new WsProvider('wss://rpc.polkadot.io');
+const api = await ApiPromise.create({ provider });
+
+async function checkAccountExistence(api, address) {
+  const accountInfo = await api.query.system.account(address);
+  const balance = accountInfo.data.free.toBigInt();
+  const existentialDeposit = api.consts.balances.existentialDeposit.toBigInt();
+
+  return {
+    exists: !accountInfo.isEmpty,
+    balance,
+    hasExistentialDeposit: balance >= existentialDeposit,
+  };
+}

.snippets/code/develop/interoperability/best-practices-for-teleporting-assets/account-existence.ts

@@ -0,0 +1,16 @@
+import { dot } from '@polkadot-api/descriptors';
+import { createClient } from 'polkadot-api';
+import { getWsProvider } from 'polkadot-api/ws-provider/web';
+
+async function queryAccountBalance(address: string) {
+  const client = createClient(getWsProvider('wss://rpc.polkadot.io'));
+  const api = client.getTypedApi(dot);
+
+  const accountInfo = await api.query.System.Account.getValue(address);
+  const existentialDeposit = await api.constants.Balances.ExistentialDeposit();
+
+  return {
+    balance: accountInfo?.data.free ?? 0n,
+    hasED: (accountInfo?.data.free ?? 0n) >= existentialDeposit,
+  };
+}

.snippets/code/develop/interoperability/best-practices-for-teleporting-assets/asset-conversion-api.ts

@@ -0,0 +1,15 @@
+import { ah } from '@polkadot-api/descriptors';
+import { createClient } from 'polkadot-api';
+import { getWsProvider } from 'polkadot-api/ws-provider/web';
+
+const client = createClient(
+  getWsProvider('wss://asset-hub-paseo.dotters.network')
+);
+const api = client.getTypedApi(ah);
+
+const feeInAsset =
+  await api.apis.AssetConversionApi.quote_price_exact_tokens_for_tokens(
+    assetIn,
+    assetOut,
+    amountIn
+  );

.snippets/code/develop/interoperability/best-practices-for-teleporting-assets/tx-payment-api.ts

@@ -0,0 +1,11 @@
+import { dot } from '@polkadot-api/descriptors';
+import { createClient } from 'polkadot-api';
+import { getWsProvider } from 'polkadot-api/ws-provider/web';
+
+const client = createClient(getWsProvider('wss://rpc.polkadot.io'));
+const api = client.getTypedApi(dot);
+
+const feeDetails = await api.apis.TransactionPaymentApi.query_fee_details(
+  call.toHex(),
+  call.encodedLength
+);

.snippets/code/develop/interoperability/best-practices-for-teleporting-assets/xcm-payment-api.ts

@@ -0,0 +1,11 @@
+import { dot } from '@polkadot-api/descriptors';
+import { createClient } from 'polkadot-api';
+import { getWsProvider } from 'polkadot-api/ws-provider/web';
+
+const client = createClient(getWsProvider('wss://rpc.polkadot.io'));
+const api = client.getTypedApi(dot);
+
+const deliveryFees = await api.apis.XcmPaymentApi.query_delivery_fees(
+  destination,
+  message
+);

.snippets/code/tutorials/polkadot-sdk/system-chains/asset-hub/batch-teleport-with-dry-run.ts

@@ -2,27 +2,24 @@ import { Builder, Version, BatchMode, hasDryRunSupport } from '@paraspell/sdk';
 
 // Paseo has 10 decimals, use this to simplify.
 const PAS_UNITS = 10_000_000_000;
-// The RPC endpoints to connect to Paseo Asset Hub.
-// Not needed if using Polkadot.
-const PASEO_AH_RPC = 'wss://asset-hub-paseo.dotters.network';
 
 async function batchTeleport() {
   const senderAddress = '15whavTNSyceP8SL3Z1JukFcUPzmeR26RxKXkfQiPhsykg7s';
   const recipientAddress = '14E5nqKAp3oAJcmzgZhUD2RcptBeUBScxKHgJKU4HPNcKVf3';
 
   // Check if dry run is supported on Polkadot Asset Hub.
-  const supportsDryRun = hasDryRunSupport('AssetHubPolkadot');
-  console.log(`AssetHubPolkadot supports dry run: ${supportsDryRun}`);
+  const supportsDryRun = hasDryRunSupport('AssetHubPaseo');
+  console.log(`AssetHubPaseo supports dry run: ${supportsDryRun}`);
 
   if (supportsDryRun) {
     console.log('Running dry run for first transaction...');
 
     // Dry run the first transaction.
     try {
-      const dryRunResult1 = await Builder([PASEO_AH_RPC])
-        .from('AssetHubPolkadot')
-        .to('Polkadot')
-        .currency({ symbol: 'DOT', amount: 1 * PAS_UNITS })
+      const dryRunResult1 = await Builder()
+        .from('AssetHubPaseo')
+        .to('Paseo')
+        .currency({ symbol: 'PAS', amount: 1 * PAS_UNITS })
         .address(recipientAddress)
         .senderAddress(senderAddress)
         .xcmVersion(Version.V5)
@@ -32,10 +29,10 @@ async function batchTeleport() {
 
       // Dry run the second transaction.
       console.log('Running dry run for second transaction...');
-      const dryRunResult2 = await Builder([PASEO_AH_RPC])
-        .from('AssetHubPolkadot')
-        .to('Polkadot')
-        .currency({ symbol: 'DOT', amount: 1 * PAS_UNITS })
+      const dryRunResult2 = await Builder()
+        .from('AssetHubPaseo')
+        .to('Paseo')
+        .currency({ symbol: 'PAS', amount: 1 * PAS_UNITS })
         .address(recipientAddress)
         .senderAddress(senderAddress)
         .xcmVersion(Version.V5)
@@ -49,35 +46,35 @@ async function batchTeleport() {
       console.dir(dryRunResult1, { depth: null });
       console.log('Transaction 2:');
       console.dir(dryRunResult2, { depth: null });
-
-
     } catch (error) {
       console.error('Dry run failed:', error);
       return; // Exit early if dry run throws an error.
     }
   } else {
-    console.log('Dry run not supported, proceeding directly to batch transaction...');
+    console.log(
+      'Dry run not supported, proceeding directly to batch transaction...'
+    );
   }
 
   // Original batch transaction code.
-  const builder = Builder([PASEO_AH_RPC])
-    .from('AssetHubPolkadot')
-    .to('Polkadot')
-    .currency({ symbol: 'DOT', amount: 1 * PAS_UNITS })
+  const builder = Builder()
+    .from('AssetHubPaseo')
+    .to('Paseo')
+    .currency({ symbol: 'PAS', amount: 1 * PAS_UNITS })
     .address(recipientAddress)
     .xcmVersion(Version.V5)
     .addToBatch()
 
-    .from('AssetHubPolkadot')
-    .to('Polkadot')
-    .currency({ symbol: 'DOT', amount: 1 * PAS_UNITS })
+    .from('AssetHubPaseo')
+    .to('Paseo')
+    .currency({ symbol: 'PAS', amount: 1 * PAS_UNITS })
     .address(recipientAddress)
     .xcmVersion(Version.V5)
     .addToBatch();
 
   const tx = await builder.buildBatch({
     // This settings object is optional and batch all is the default option.
-    mode: BatchMode.BATCH_ALL //or BatchMode.BATCH
+    mode: BatchMode.BATCH_ALL, //or BatchMode.BATCH
   });
 
   const callData = await tx.getEncodedData();
@@ -89,4 +86,4 @@ async function batchTeleport() {
   `);
 }
 
-batchTeleport();
+batchTeleport();

.snippets/code/tutorials/polkadot-sdk/system-chains/asset-hub/index.ts

@@ -2,29 +2,28 @@ import { Builder, Version, BatchMode } from '@paraspell/sdk';
 
 // Paseo has 10 decimals, use this to simplify.
 const PAS_UNITS = 10_000_000_000;
-// The RPC endpoints to connect to Paseo.
-// Not needed if using Polkadot.
-const PASEO_AH_RPC = 'wss://asset-hub-paseo.dotters.network';
 
 async function batchTeleport() {
-  const builder = Builder([PASEO_AH_RPC])
-    .from('AssetHubPolkadot')
-    .to('Polkadot')
-    .currency({ symbol: 'DOT', amount: 1 * PAS_UNITS })
+  const builder = Builder()
+    .from('AssetHubPaseo')
+    .to('Paseo')
+    .currency({ symbol: 'PAS', amount: 1 * PAS_UNITS })
     .address('15whavTNSyceP8SL3Z1JukFcUPzmeR26RxKXkfQiPhsykg7s')
     .xcmVersion(Version.V5)
     .addToBatch()
-
-    .from('AssetHubPolkadot')
-    .to('Polkadot')
-    .currency({ symbol: 'DOT', amount: 1 * PAS_UNITS })
+    
+    .from('AssetHubPaseo')
+    .to('Paseo')
+    .currency({ symbol: 'PAS', amount: 1 * PAS_UNITS })
     .address('14E5nqKAp3oAJcmzgZhUD2RcptBeUBScxKHgJKU4HPNcKVf3')
     .xcmVersion(Version.V5)
     .addToBatch();
-  const tx = await builder.buildBatch({
+  
+    const tx = await builder.buildBatch({
     // This settings object is optional and batch all is the default option
-    mode: BatchMode.BATCH_ALL //or BatchMode.BATCH
-  })
+    mode: BatchMode.BATCH_ALL, //or BatchMode.BATCH
+  });
+  
   const callData = await tx.getEncodedData();
 
   // This generates a link the polkadot developer console.

.snippets/code/tutorials/polkadot-sdk/system-chains/asset-hub/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "batch-teleport-tutorial",
+  "version": "1.0.0",
+  "description": "Tutorial for creating batch teleport transactions with ParaSpell SDK using Bun",
+  "main": "index.ts",
+  "type": "module",
+  "scripts": {
+    "start": "bun run index.ts",
+    "dev": "bun run --watch index.ts" // --watch automatically restarts the script when files change
+ },
+  },
+  "dependencies": {
+    "@paraspell/sdk": "^{{dependencies.javascript_packages.paraspell_sdk.version}}"
+  }
+}

.snippets/code/tutorials/polkadot-sdk/system-chains/asset-hub/papi-console-output.html

@@ -1,4 +1,6 @@
 <div id="termynal" data-termynal>
+  <span data-ty="input"><span class="file-path"></span>bun run dev</span>
+  <br />
   <span data-ty> Send via PAPI console:</span>
   <span data-ty>    https://dev.papi.how/extrinsics#networkId=paseo_asset_hub&endpoint=light-client&data=0x1c041c...</span>
 </div>