duanyytop / ckb_sdk_dart

Dart SDK for CKB

CKB SDK Dart

Dart SDK for Nervos CKB

Prerequisites

• Dart 2.5 or later

Installation

You should install dart firstly through Dart.

Usage

JSONRPC

A simple usage example of jsonrpc request which in example/rpc.dart:

main() async {
  Api api = Api('http://localhost:8114', hasLogger: false);
  String blockHash = await api.getBlockHash('0x2');
  Block block = await api.getBlock(blockHash);
  print(block.transactions[0].outputs[0].lock.toJson());
}

Simple Wallet example

A simple usage example of sendTransaction which is in example/wallet.dart:

main() async {
    api = Api(NODE_URL);

    print('Before transferring, sender\'s balance: ${await getBalance(TestAddress)} CKB');

    print('Before transferring, first receiver\'s balance: ${await getBalance(ReceiveAddresses[0])} CKB');

    print('Before transferring, change address\'s balance: ${await getBalance(changeAddress)} CKB');

    var hash = await sendCapacity(receivers, changeAddress);
    print('Transaction hash: $hash');

    // waiting transaction into block, sometimes you should wait more seconds
    sleep(Duration(seconds: 30));

    print('After transferring, sender\'s balance: ${await getBalance(TestAddress)} CKB');

    print('After transferring, receiver\'s balance: ${await getBalance(ReceiveAddresses[0])} CKB');

    print('After transferring, change address\'s balance: ${await getBalance(changeAddress)} CKB');
}

Development

If you want to develop by yourself, you can download this project to your local.

git clone https://github.com/duanyytop/ckb_sdk_dart.git
cd ckb_sdk_dart

pub get                       // download and install dependence
pub run test                  // run sdk unit tests

dart ./example/main.dart       // rpc request example
dart ./example/single_key_single_sig_tx_example.dart    // single key and single signature transaction 
dart ./example/multi_key_single_sig_tx_example.dart     // multi keys and single signature transaction 
dart ./example/dao_deposit.dart                         // Nervos DAO deposit example
dart ./example/dao_withdraw.dart                        // Nervos DAO withdraw phase1 and phase2 example
dart ./example/carrot_contract.dart                     // simple contract(with carrot string) example
dart ./example/udt.contract.dart                        // simple udt contract example

Features and bugs

Please create pull requests or issues in this GitHub repo if you want to contribute new features or find bugs.

Welcome to join us. Thanks.

ckb_sdk_dart's Issues

Dependency Dashboard

This issue lists Renovate updates and detected dependencies. Read the Dependency Dashboard docs to learn more.

Rate-Limited

These updates are currently rate-limited. Click on a checkbox below to force their creation now.

• chore(deps): update codecov/codecov-action action to v1.5.2
• chore(deps): update actions/checkout action to v4
• chore(deps): update codecov/codecov-action action to v4
• chore(deps): update dependency dart to v3
• 🔐 Create all rate-limited PRs at once 🔐

Edited/Blocked

These updates have been manually edited so Renovate will no longer make changes. To discard all commits and start over, click on a checkbox.

• fix(deps): update dependency hex to ^0.2.0
• fix(deps): update dependency http to ^0.13.0
• fix(deps): update dependency test_coverage to ^0.5.0
• chore(deps): update dependency build_runner to v2
• chore(deps): update dependency json_serializable to v6
• fix(deps): update dependency json_annotation to v4
• fix(deps): update dependency pointycastle to v3

Open

These updates have all been created already. Click a checkbox below to force a retry/rebase of any.

• fix(deps): update dependency pinenacl to ^0.5.0
• fix(deps): update dependency dio to v5
• fix(deps): update dependency http to v1
• Click on this checkbox to rebase all open PRs at once

Detected dependencies

circleci

.circleci/config.yml

github-actions

.github/workflows/dart.yml

• actions/checkout v1
• codecov/codecov-action v1.0.2

pub

pubspec.yaml

• dio ^3.0.8
• pointycastle ^1.0.2
• pinenacl ^0.1.3-dev.1
• bip_bech32 ^0.1.3
• test_coverage ^0.4.0
• http ^0.12.0+4
• hex ^0.1.2
• json_annotation ^3.0.1
• pedantic ^1.9.0
• test ^1.6.0
• build_runner ^1.7.4
• json_serializable ^3.2.5
• dart >=2.4.0 <3.0.0

---

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