Skip to main content

​
Function Signature

Future<PortalAssetsResponse> getAssets(String chainId)

​
Description

Retrieves both native token balance and ERC-20/token balances for the wallet on the specified chain.

​
Parameters

ParameterTypeRequiredDescription
chainIdStringYesThe chain ID in CAIP-2 format

​
Returns

PortalAssetsResponse - An object containing:
PropertyTypeDescription
nativeBalanceList<PortalAsset?>List of native token balances
tokenBalancesList<PortalAsset?>List of token balances

​
PortalAsset

PropertyTypeDescription
symbolStringToken symbol (e.g., “ETH”, “USDC”)
nameStringToken name
balanceStringThe formatted balance amount
decimalsintToken decimals
tokenAddressString?Token contract address (null for native)
rawBalanceString?Raw balance in smallest unit
metadataPortalAssetMetadata?Additional token metadata

​
PortalAssetMetadata

PropertyTypeDescription
logoUriString?Token logo URL
tokenTypeString?Type of token

​
Example

import 'package:portal_flutter/portal_flutter.dart';

final portal = Portal();

final assets = await portal.getAssets('eip155:1');

// Native balance
for (final native in assets.nativeBalance) {
  if (native != null) {
    print('${native.symbol} balance: ${native.balance}');
  }
}

// Token balances
for (final token in assets.tokenBalances) {
  if (token != null) {
    print('${token.symbol}: ${token.balance}');
  }
}

​
Errors

CodeDescription
NOT_INITIALIZEDPortal was not initialized
FETCH_FAILEDFailed to fetch assets