Package Exports

dfinance

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (dfinance) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

dfinance js

The most effective way to work with dfinance smart contracts on NodeJS.

Examples

npm install dfinance

Search contract events

const DFI = require('dfinance');
const dfi = new DFI('https://rest.testnet.dfinance.co/');

(async () => {

    const txSearch = await dfi.tracker.track({

        // main search params
        sender: 'wallet12tg20s9g4les55vfvnumlkg0a5zk825py9j0ha',
        action: 'execute_script',
        module: 'vm',
        // Search fromBlock, toBlock
        // Also you can use: {block: value}
        // to search in specific block
        block: [0, 200000],

        // vm specific params
        vm: {
            module: '0x1::Account',
            event: '0x1::Account::ReceivedPaymentEvent'
        },

    });

    console.log(JSON.stringify(txSearch, null, 4));
})();

Compile scripts/modules and execute them!

const mnemonic = '...'; // PASTE HERE!
const DFI = require('dfinance');
const dfi = new DFI('https://rest.testnet.dfinance.co/');

(async () => {

    const wallet = new dfi.Wallet(mnemonic);
    const addr   = wallet.address;
    const script = await dfi.compile(addr, `
        script {
            use 0x1::Account;
            use 0x1::Coins::ETH;

            fun main(acc: &signer) {
                Account::pay_from_sender<ETH>(
                    acc,
                    0x1,
                    100000
                )
            }
        }
    `);

    const gas = '500000'; // 200k-300k is enough
    const account = await dfi.api.getAccount(addr);

    // also you can .publishModule
    const execScriptTx = dfi
        .tx({account, wallet, gas})
        .executeScript(script.code);

    const res = await dfi.api.broadcastTx(execScriptTx, 'block');

    console.log(res);

})();

Multi script publish + arguments

const mnemonic = '...'; // PASTE HERE!
const DFI = require('dfinance');
const dfi = new DFI('https://rest.testnet.dfinance.co/');

(async () => {

    const wallet = new dfi.Wallet(mnemonic);
    const addr   = wallet.address;
    const script = await dfi.compile(addr, `
        script {
            use 0x1::Account;
            use 0x1::XFI::T as XFI;

            fun main(
                account: &signer,
                payee: address,
                amount: u128
            ) {
                Account::pay_from_sender<XFI>(
                    account,
                    payee,
                    amount
                );
            }
        }
    `);

    const gas = '500000'; // 200k-300k is enough
    const account = await dfi.api.getAccount(addr);
    const tx = dfi
        .tx({account, wallet, gas})
        .multi()
        .executeScript(script.code, DFI.scriptArg([
            // &signer should never be passed!
            ['address', 'wallet12tg20s9g4les55vfvnumlkg0a5zk825py9j0ha'],
            ['u128', '100000000']
        ]))
        .executeScript(script.code, DFI.scriptArg([
            ['address', '0x1'],
            ['u128', '1000']
        ]))
        // .publishModule or .executeScript is also available here!
        .combine();

    const res = await dfi.api.broadcastTx(execScriptTx, 'block');

    console.log(res);

})();