Zilliqa

Zilliqa

#Installation

Magic interacts with the Zilliqa blockchain via Magic's extension NPM package @magic-ext/zilliqa. The Zilliqa extension also lets you interact with the blockchain using methods from Zilliqa's Javascript SDK.

note

You can skip straight to our kitchen sink example directly:

👉 Zilliqa Example

NPM
Yarn
01npm install --save @magic-ext/zilliqa

#Initialization

Typescript
01import { Magic } from 'magic-sdk';
02import { ZilliqaExtension } from '@magic-ext/zilliqa';
03
04const magic = new Magic('YOUR_API_KEY', {
05  extensions: [
06    new ZilliqaExtension({
07      rpcUrl: 'Zilliqa_RPC_NODE_URL',
08    }),
09  ],
10});

#Common Methods

#Getting Test ZIL

Before you can send transaction on the Zilliqa blockchain, you'll need to acquire some test ZIL (Zilliqa's native cryptocurrency for test network).

  1. Go to our Zilliqa Example application
  2. Login with your email address
  3. Copy your Zilliqa public address
  4. Go to the ZIL Faucet
  5. Paste your copied Zilliqa public address in the text input
  6. You can receive 300 test ZIL
  7. Now you can use your test ZIL in our example app

#Get User Wallet

Using getWallet function to get a Zilliqa wallet for the current user.

Typescript
01import { Magic } from 'magic-sdk';
02import { ZilliqaExtension } from '@magic-ext/zilliqa';
03
04const magic = new Magic('YOUR_API_KEY', {
05  extensions: [
06    new ZilliqaExtension({
07      rpcUrl: 'Zilliqa_RPC_NODE_URL',
08    }),
09  ],
10});
11
12// Get user's Zilliqa wallet info
13const wallet = await magic.zilliqa.getWallet();
14console.log('Zilliqa wallet: ', wallet);

#Send Transaction

To send a standard Zilliqa blockchain transaction, you can call the magic.Zilliqa.sendTransaction method.

Typescript
01import { Magic } from 'magic-sdk';
02import { ZilliqaExtension } from '@magic-ext/zilliqa';
03const { BN, Long, bytes, units } = require('@zilliqa-js/util');
04
05const magic = new Magic('YOUR_API_KEY', {
06  extensions: [
07    new ZilliqaExtension({
08      rpcUrl: 'Zilliqa_RPC_NODE_URL',
09    }),
10  ],
11});
12
13const chainId = 333; // chainId of the developer testnet
14const msgVersion = 1; // current msgVersion
15const VERSION = bytes.pack(chainId, msgVersion);
16
17const myGasPrice = units.toQa('1000', units.Units.Li);
18
19const params = {
20  version: VERSION,
21  toAddr: 'zil14vut0rh7q78ydc0g7yt7e5zkfyrmmps00lk6r7',
22  amount: new BN(units.toQa('0.5', units.Units.Zil)),
23  gasPrice: myGasPrice,
24  gasLimit: Long.fromNumber(1),
25};
26
27const tx = await magic.zil.sendTransaction(params, false);
28// Send a transaction
29console.log('send transaction', tx);

#Smart Contract

#Deploy Contract

To deploy a smart contract, you can call the magic.zilliqa.deployContract method.

Typescript
01import { Magic } from 'magic-sdk';
02import { ZilliqaExtension } from '@magic-ext/zilliqa';
03const { BN, Long, bytes, units } = require('@zilliqa-js/util');
04
05const magic = new Magic('YOUR_API_KEY', {
06  extensions: [
07    new ZilliqaExtension({
08      rpcUrl: 'Zilliqa_RPC_NODE_URL',
09    }),
10  ],
11});
12
13const wallet = await magic.zilliqa.getWallet();
14
15const address = wallet.address;
16
17const code = `scilla_version 0
18
19    (* HelloWorld contract *)
20
21    import ListUtils
22
23    (***************************************************)
24    (*               Associated library                *)
25    (***************************************************)
26    library HelloWorld
27
28    let not_owner_code = Int32 1
29    let set_hello_code = Int32 2
30
31    (***************************************************)
32    (*             The contract definition             *)
33    (***************************************************)
34
35    contract HelloWorld
36    (owner: ByStr20)
37
38    field welcome_msg : String = ""
39
40    transition setHello (msg : String)
41      is_owner = builtin eq owner _sender;
42      match is_owner with
43      | False =>
44        e = {_eventname : "setHello()"; code : not_owner_code};
45        event e
46      | True =>
47        welcome_msg := msg;
48        e = {_eventname : "setHello()"; code : set_hello_code};
49        event e
50      end
51    end
52
53
54    transition getHello ()
55        r <- welcome_msg;
56        e = {_eventname: "getHello()"; msg: r};
57        event e
58    end`;
59
60const init = [
61  // this parameter is mandatory for all init arrays
62  {
63    vname: '_scilla_version',
64    type: 'Uint32',
65    value: '0',
66  },
67  {
68    vname: 'owner',
69    type: 'ByStr20',
70    value: `${address}`,
71  },
72];
73
74const chainId = 333; // chainId of the developer testnet
75const msgVersion = 1; // current msgVersion
76const VERSION = bytes.pack(chainId, msgVersion);
77
78const myGasPrice = units.toQa('1000', units.Units.Li);
79
80const params = {
81  version: VERSION,
82  gasPrice: myGasPrice,
83  gasLimit: Long.fromNumber(10000),
84};
85
86const result = await magic.zil.deployContract(init, code, params, 33, 1000, false);
87
88console.log('deploy contract', result);

#Resources