Document Store

The Document Store repository contains both the smart contract code for document store (in /contracts) as well as the node package for using this library (in /src).

Installation

npm i @govtechsg/document-store

Usage

To use the package, you will need to provide your own Web3 provider or signer (if you are writing to the blockchain).

Deploy new document store

import { deployAndWait } from "@govtechsg/document-store";

const documentStore = await deployAndWait("My Document Store", signer).then(console.log);

Connect to existing document store

import { connect } from "@govtechsg/document-store";

const documentStore = await connect("0x4077534e82c97be03a07fb10f5c853d2bc7161fb", providerOrSigner);

Interact with document store

const issueMerkleRoot = async () => {
  const documentStore = connect("0x4077534e82c97be03a07fb10f5c853d2bc7161fb", signer);

  const tx = await documentStore.issue("0x7fe0b58ed760804eb7118988637693c4351613be327b56527e55bcd0a8d170d7");
  const receipt = await tx.wait();
  console.log(receipt);

  const isIssued = await instance.isIssued("0x7fe0b58ed760804eb7118988637693c4351613be327b56527e55bcd0a8d170d7");
  console.log(isIssued);
};

List of available functions

documentIssued
documentRevoked
isOwner
name
owner
renounceOwnership
transferOwnership
version
initialize
issue
bulkIssue
getIssuedBlock
isIssued
isIssuedBefore
revoke
bulkRevoke
isRevoked
isRevokedBefore

Provider & Signer

Different ways to get provider or signer:

import { Wallet, providers, getDefaultProvider } from "ethers";

// Providers
const mainnetProvider = getDefaultProvider();
const goerliProvider = getDefaultProvider("goerli");
const metamaskProvider = new providers.Web3Provider(web3.currentProvider); // Will change network automatically

// Signer
const signerFromPrivateKey = new Wallet("YOUR-PRIVATE-KEY-HERE", provider);
const signerFromEncryptedJson = Wallet.fromEncryptedJson(json, password);
signerFromEncryptedJson.connect(provider);
const signerFromMnemonic = Wallet.fromMnemonic("MNEMONIC-HERE");
signerFromMnemonic.connect(provider);

Setup

npm install
npm lint
npm test
npm truffle <command>

Contract Benchmark

A benchmark is provided to show the different transaction cost of the different variants of the document store.

npm run benchmark

Notes

If you are using vscode, you may need to link the openzeppelin libraries. Refer to here.