filecoin.js

Status

This repository is currently being updated and will be further updated to support the coming Filecoin VM. Learn more at fvm.filecoin.io

---

A JavaScript (and TypeScript) library for interacting with the Filecoin's Lotus node, with support for external signers.

Documentation

Visit the Filecoin JS Docs.

Installing

Node:

npm install --save filecoin.js

Browser:

<script type="text/javascript" src="https://unpkg.com/filecoin.js"></script>
<!-- window.FilecoinJs object contains the library exports -->

Using

Node JavaScript/TypeScript:

import { HttpJsonRpcConnector, MnemonicWalletProvider } from 'filecoin.js';

(async () => {

  const connector = new HttpJsonRpcConnector({ url: __LOTUS_RPC_ENDPOINT__, token: __LOTUS_AUTH_TOKEN__ });

  const hdWalletMnemonic = 'equip ... young';
  const hdWalletPassword = '...';
  const hdDerivationPath = `m/44'/461'/0'/0/0`;

  const walletProvider = new MnemonicWalletProvider(
    connector,
    hdWalletMnemonic,
    hdWalletPassword,
    hdDerivationPath
  );

  const myAddress = await walletProvider.getDefaultAccount();
  console.log(myAddress);
  // f1zx43cf6qb6rd...

})().then().catch();

Browser:

<script type="text/javascript" src="https://unpkg.com/filecoin.js"></script>
<script type="text/javascript">
(async () => {

  const connector = new FilecoinJs.HttpJsonRpcConnector({ url: __LOTUS_RPC_ENDPOINT__, token: __LOTUS_AUTH_TOKEN__ });

  const hdWalletMnemonic = 'equip ... young';
  const hdWalletPassword = async () => await window.prompt(),;
  const hdDerivationPath = `m/44'/461'/0'/0/0`;

  const walletProvider = new FilecoinJs.MnemonicWalletProvider(
    connector,
    hdWalletMnemonic,
    hdWalletPassword,
    hdDerivationPath
  );

  const myAddress = await walletProvider.getDefaultAccount();
  console.log(myAddress);
  // f1zx43cf6qb6rd...

})().then().catch();
</script>

Examples

Sending some FIL to someAddress:

    const message = await walletProvider.createMessage({
      From: myAddress,
      To: someAddress,
      Value: new BigNumber(42),
    });

    const msgCid = await walletProvider.sendSignedMessage(
      await walletProvider.signMessage(message)
    );

Check out the tests or examples folders for more usage examples.

Documentation

As with the rest of the library, the documentation is WIP. As it evolves the documentation site will be updated.

Contributing

Feel free to join in. All welcome. Open an issue!

License

Dual-licensed under MIT + Apache 2.0