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CLI Tools

Command-line tools are often used by developers to perform specific blockchain tasks in a faster and more efficient way.

CKB-CLI​

ckb-cli is a CKB command-line tool developed in Rust.

If you need to interact with Mainnet blockchain from the command line, ckb-cli is an ideal choice to manage accounts, deploy Scripts and send Transactions.

Features​

    rpc         Invoke RPC call to node
    account     Manage accounts
    mock-tx     Handle mock transactions (verify/send)
    tx          Handle common sighash/multisig transaction
    util        Utilities
    molecule    Molecule encode/decode utilities
    wallet      Transfer / query balance (with local index) / key utils
    dao         Deposit / prepare / withdraw / query NervosDAO balance (with local index) / key utils

All second-level sub-commands are listed on the wiki page.

Install​

git clone https://github.com/nervosnetwork/ckb-cli.git
cd ckb-cli
cargo install --path . -f --locked

Usage​

Better export an env first (or give in argument)

export API_URL=http://127.0.0.1:8114

Directly go to gorgeous interactive mode:

ckb-cli

Show available commands

# Top level help doc
ckb-cli --help
# RPC help doc
ckb-cli rpc --help

Example: Get Live Cell (JSON Output Format)​

ckb-cli rpc get_live_cell --tx-hash 0x4ec75b5a8de8d180853d5046760a99285c73283a5dc528f81d6ee056f5335172 --index 0

Response:

{
  "cell": {
    "capacity": "125000000000",
    "lock": {
      "args": ["0x64257f00b6b63e987609fa9be2d0c86d351020fb"],
      "code_hash": "0x1892ea40d82b53c678ff88312450bbb17e164d7a3e0a90941aa58839f56f8df2",
      "hash_type": "type"
    },
    "type": null
  },
  "status": "live"
}

OffCKB​

offckb is a CLI tool developed in Node.js to help you quickly set up a predefined CKB Devnet and create dApp boilerplates.

If you need a local development environment for the very first try on your dApp, offckb is the ideal choice.

Install​

npm install -g @offckb/cli

Usage​

Usage: offckb [options] [command]

ckb development network for your first try

Options:
  -V, --version                                     output the version number
  -h, --help                                        display help for command

Commands:
  create [your-project-name]                        Create a new dApp from bare templates
  node                                              Use the CKB to start devnet
  clean                                             Clean the devnet data, need to stop running the chain first
  accounts                                          Print account list info
  list-hashes                                       Use the CKB to list blockchain scripts hashes
  inject-config                                     Add offckb.config.ts to your workspace
  sync-config                                       sync offckb.config.ts in your workspace
  deposit [options] [toAddress] [amountInShannon]   Deposit CKB tokens to address, only devnet and testnet
  transfer [options] [toAddress] [amountInShannon]  Transfer CKB tokens to address, only devnet and testnet
  balance [options] [toAddress]                     Check account balance, only devnet and testnet
  deploy [options]                                  Deploy contracts to different networks, only supports devnet and testnet
  deployed-scripts [options]                        Show deployed contracts info on networks, only supports devnet and testnet
  help [command]                                    display help for command

Create a Full-Stack Project​

Create a new project from predefined boilerplates.

offckb create <your-project-name, eg:my-first-ckb-project>

The boilerplate can target on different CKB networks. Check the README.md in the project to get started.

Access Testing Accounts​

offckb provides 20 pre-funded accounts for use on Devnet. Each account is funded with 42,000,000,000,000,000 capacity in the Devnet's genesis block. You can access these accounts and copy the private keys and addresses for use when developing your dApps.

offckb accounts
note

To deposit or check balances on Devnet, ensure that you have started the offckb node. This step is not required for Testnet operations.

Deposit Funds​

Occasionally, you may prefer to use your personal CKB account rather than the pre-funded accounts provided by offckb. To deposit CKB into your own account using offckb, use the command below. Replace <your-ckb-address> with your personal CKB address and <deposit-amount-in-shannon> with the specific amount you wish to deposit, expressed in shannons:

CKB vs. Shannons

1 CKByte = 100,000,000 Shannons

offckb deposit --network devnet <your-ckb-address> <deposit-amount-in-shannon>

Check Balance​

To check the balance of a specific account, use the following command. Replace <CKB-address> with the address of the account you want to check, and <devnet/testnet> with the appropriate network depending on which one you are using:

offckb balance <CKB-address> --network <devnet/testnet>