sendAsset

Function Signature

Future<String> sendAsset({
  required String chainId,
  required String to,
  required String token,
  required String amount,
  String? signatureApprovalMemo,
  bool? sponsorGas,
})

Description

Send tokens from your Portal wallet to another address. This is the recommended method for simple token transfers.

Parameters

Parameter	Type	Required	Description
`chainId`	`String`	Yes	The chain ID in CAIP-2 format
`to`	`String`	Yes	The recipient address
`token`	`String`	Yes	Token address or `"NATIVE"` for native token
`amount`	`String`	Yes	Amount to send (in human-readable format)
`signatureApprovalMemo`	`String`	No	Optional memo for transaction approval
`sponsorGas`	`bool`	No	Whether to use gas sponsorship (Account Abstraction)

Returns

String - The transaction hash. For Account Abstraction clients sending on EVM, this is a UserOperation hash rather than an on-chain transaction hash (see the warning below).

Account Abstraction clients: the returned txHash is a UserOperation hash, not an on-chain transaction hash — it will not resolve on a block explorer such as Etherscan or Monadscan. The on-chain transaction hash is only assigned once the bundler includes the UserOperation on-chain. Look up the UserOperation hash on a UserOp explorer such as JiffyScan to find the resulting transaction hash. See Account abstraction.

Example

import 'package:portal_flutter/portal_flutter.dart';

final portal = Portal();

// Send native token
final txHash = await portal.sendAsset(
  chainId: 'eip155:1',
  to: '0xRecipientAddress',
  token: 'NATIVE',
  amount: '0.01',
);

print('Transaction hash: $txHash');

Send ERC-20 Token

final txHash = await portal.sendAsset(
  chainId: 'eip155:1',
  to: '0xRecipientAddress',
  token: '0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48', // USDC
  amount: '10',
);

With Gas Sponsorship Control

final txHash = await portal.sendAsset(
  chainId: 'eip155:1',
  to: '0xRecipientAddress',
  token: 'NATIVE',
  amount: '0.01',
  sponsorGas: false, // User pays gas
);

Errors

Code	Description
`NOT_INITIALIZED`	Portal was not initialized
`INSUFFICIENT_BALANCE`	Not enough tokens to send
`TRANSACTION_FAILED`	The transaction failed

getAddresses / getAddress sendTransaction

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Function Signature

Description

Parameters

Returns

Example

Send ERC-20 Token

With Gas Sponsorship Control

Errors

​Function Signature

​Description

​Parameters

​Returns

​Example

​Send ERC-20 Token

​With Gas Sponsorship Control

​Errors

​Related

Function Signature

Description

Parameters

Returns

Example

Send ERC-20 Token

With Gas Sponsorship Control

Errors

Related