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Installation

Magic interacts with the ICON blockchain via Magic’s extension NPM package @magic-ext/icon. The ICON extension also lets you interact with the blockchain using methods from ICON’s JavaScript SDK.
NOTEYou can skip straight to our kitchen sink example directly:ICON Example
npm install --save @magic-ext/icon

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Initialization

JavaScript
import { Magic } from 'magic-sdk';
import { IconExtension } from '@magic-ext/icon';

const magic = new Magic('YOUR_API_KEY', {
  extensions: [
    new IconExtension({
      rpcUrl: 'ICON_RPC_NODE_URL',
    }),
  ],
});

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Common Methods

Get Test ICON Before you can send transaction on the ICON blockchain, you’ll need to acquire some test ICON (ICON’s native cryptocurrency for test network).
  1. Go to our ICON Example application
  2. Login with your email address
  3. Copy your ICON public address
  4. Go to the ICON Faucet
  5. Paste your copied ICON public address in the text input
  6. You can receive up to 100 test ICON per day
  7. Now you can use your test ICON in our example app

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Get User Info

Using getAccount function to get ICON public address for current user.
JavaScript
import { Magic } from 'magic-sdk';
import { IconExtension } from '@magic-ext/icon';

const magic = new Magic('YOUR_API_KEY', {
  extensions: [
    new IconExtension({
      rpcUrl: 'ICON_RPC_NODE_URL',
    }),
  ],
});

// Get user's ICON public address
const publicAddress = await magic.icon.getAccount();
console.log('ICON Public Address: ', publicAddress);

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Send Transaction

Note that the Magic ICON extension follows the method names and conventions by ICON’s JavaScript SDK. To send a standard ICON blockchain transaction, you can call the magic.icon.sendTransaction method.
JavaScript
import { Magic } from 'magic-sdk';
import { IconExtension } from '@magic-ext/icon';

import IconService from 'icon-sdk-js';

const { IconBuilder, IconAmount, IconConverter } = IconService;

const magic = new Magic('YOUR_API_KEY', {
  extensions: [
    new IconExtension({
      rpcUrl: 'ICON_RPC_NODE_URL',
    }),
  ],
});

const metadata = await magic.user.getMetadata();
const destinationAddress = 'hx19f4fc31c6e51d5facccb52e3ccbe6b7d61f409e';
const sendICXAmount = '10';

// Build a transaction
const txObj = new IconBuilder.IcxTransactionBuilder()
  .from(metadata.publicAddress)
  .to(destinationAddress)
  .value(IconAmount.of(sendICXAmount, IconAmount.Unit.ICX).toLoop())
  .stepLimit(IconConverter.toBigNumber(100000))
  .nid(IconConverter.toBigNumber(3))
  .nonce(IconConverter.toBigNumber(1))
  .version(IconConverter.toBigNumber(3))
  .timestamp(new Date().getTime() * 1000)
  .build();

// Send a transaction
const txhash = await magic.icon.sendTransaction(txObj);

console.log(`Transaction Hash: ${txhash}`);

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Sign Transaction

To send a standard ICON blockchain transaction, you can call the magic.icon.signTransaction method to get the signature and raw transaction then send to blockchain by yourself.
JavaScript
import { Magic } from 'magic-sdk';
import { IconExtension } from '@magic-ext/icon';

import IconService from 'icon-sdk-js';

const { IconBuilder, IconAmount, IconConverter } = IconService;

const magic = new Magic('YOUR_API_KEY', {
  extensions: [
    new IconExtension({
      rpcUrl: 'ICON_RPC_NODE_URL',
    }),
  ],
});

const metadata = await magic.user.getMetadata();
const destinationAddress = 'hx19f4fc31c6e51d5facccb52e3ccbe6b7d61f409e';
const sendICXAmount = '10';

// Build a transaction
const txObj = new IconBuilder.IcxTransactionBuilder()
  .from(metadata.publicAddress)
  .to(destinationAddress)
  .value(IconAmount.of(sendICXAmount, IconAmount.Unit.ICX).toLoop())
  .stepLimit(IconConverter.toBigNumber(100000))
  .nid(IconConverter.toBigNumber(3))
  .nonce(IconConverter.toBigNumber(1))
  .version(IconConverter.toBigNumber(3))
  .timestamp(new Date().getTime() * 1000)
  .build();

// Send a transaction
const { signature, rawTransaction } = await magic.icon.signTransaction(txObj);

console.log(`result:`, signature, rawTransaction);

​
Deploy Smart Contract

Note that the Magic ICON extension follows the method names and conventions by ICON’s JavaScript SDK. Please follow ICON contract deploy documentation to create and compile the smart contract. To deploy an ICON smart contract, you can call the magic.icon.sendTransaction method to send deploy contract transaction.
JavaScript
import { Magic } from 'magic-sdk';
import { IconExtension } from '@magic-ext/icon';

import IconService from 'icon-sdk-js';

const { DeployTransactionBuilder, IconConverter } = IconService;

const magic = new Magic('YOUR_API_KEY', {
  extensions: [
    new IconExtension({
      rpcUrl: 'ICON_RPC_NODE_URL',
    }),
  ],
});

const metadata = await magic.user.getMetadata();

// Build a transaction
const txObj = new DeployTransactionBuilder()
  .from(metadata.publicAddress)
  .to('cx0000000000000000000000000000000000000000')
  .stepLimit(IconConverter.toBigNumber(2100000000).toString())
  .nid(IconConverter.toBigNumber(3).toString())
  .nonce(IconConverter.toBigNumber(1).toString())
  .version(IconConverter.toBigNumber(3).toString())
  .timestamp(new Date().getTime() * 1000)
  .contentType('application/zip')
  .content(`0x${compiledContractContent}`)
  .params({
    initialSupply: IconConverter.toHex('100000000000'),
    decimals: IconConverter.toHex(18),
    name: 'StandardToken',
    symbol: 'ST',
  })
  .build();

// Send transaction to deploy contract
const txhash = await magic.icon.sendTransaction(txObj);

console.log(`Transaction Hash: ${txhash}`);

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Resources