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@poppyseed/lastic-sdk

v0.2.23

Published

Typesafe React Hooks abstracting functionality of polkadot.js, created for Lastic website

Downloads

32

Readme

lastic Banner

useInkathon – React Hooks & Utility Library

License: GPL v3 Built with ink!

This library provides typesafe React hooks and utility functions that simplify the process of working with Substrate-based networks and ink! smart contracts. It abstracts away the complexities of polkadot{.js} but still lets you access the full power of the underlying API.

The project is part of a Scio Labs initiative to improve the developer experience in the ink! ecosystem and a proud member of the Aleph Zero EFP. 💜

Other projects include:

Join the discussion in our Telegram Group 💬

Checkout our TypeDoc Documentation 📃


  1. Getting started 🚀
  2. Features ✨
  3. Contract Registry 🗳️
    1. How it works
  4. Examples 📚
  5. Package Development 🛠

Getting started 🚀

[!IMPORTANT]
If you are looking for a boilerplate to start your dApp project from scratch, checkout ink!athon.

  1. Go to your existing project and install the package from the npm registry:
pnpm add @poppyseed/lastic-sdk
# or
npm install @poppyseed/lastic-sdk
# or
yarn add @poppyseed/lastic-sdk
  1. Wrap it around your app or parent component:
import { development, UseInkathonProvider } from '@poppyseed/lastic-sdk'
<UseInkathonProvider appName="My dApp" defaultChain={development}>
  <Component {...pageProps} />
</UseInkathonProvider>
  1. Use the primary useInkathon hook for connecting the wallet or accessing the API:
import { useInkathon } from '@poppyseed/lastic-sdk'
const { api, connect, activeChain, activeAccount, … } = useInkathon()

Features ✨

At its core, this library serves as a wrapper for polkadot{.js}, potentially saving you over 100 lines of code. This includes:

  • Utility functions for API initialization, connection, account management, balance checks, transfers, contract interactions, etc.
  • React hooks & provider for easy access to all of the above, including:
  • Contract interaction helper functions with automatic upfront gas estimation, including:
  • Constants definitions for Substrate-based chains, wallets, and assets
  • Works multichain with live & dynamic chain-switching out of the box

[!NOTE]
Checkout our TypeDoc Documentation for more details.

Contract Registry 🗳️

Often when working with smart contracts in the frontend, you have to import the contract metadata multiple times across a project, then determine the matching deployment address for the active chain, and create a ContractPromise instance manually each time.

The idea of a Contract Registry is to define contract metadata & addresses only once and use them everywhere with a simple hook:

const { contract } = useRegisteredContract('greeter')

How it works

Start by defining an async getDeployments function that returns SubstrateDeployment[] metadata objects for each contract deployment on each chain.

[!NOTE]
Checkout an advanced example within the ink!athon boilerplate here where metadata is imported dynamically based on defined chains and contract identifiers.

import { alephzeroTestnet, SubstrateDeployment } from '@poppyseed/lastic-sdk'

export const getDeployments = async (): Promise<SubstrateDeployment[]> => {
  return [
    {
      contractId: 'greeter',
      networkId: alephzeroTestnet.network,
      abi: await import(`../deployments/metadata.json`),
      address: '5HPwzKmJ6wgs18BEcLdH5P3mULnfnowvRzBtFcgQcwTLVwFc',
    },
  ]
}

The function's result passed to the UseInkathonProvider provider:

<UseInkathonProvider
  appName="My dApp"
  defaultChain={alephzeroTestnet}
  deployments={getDeployments()}
>
  <Component {...pageProps} />
</UseInkathonProvider>

Then access the contract as above:

const { contract } = useRegisteredContract('greeter')

Examples 📚

Within this repository:

Live examples:

Package Development 🛠

If you want to contribute, please read our Contributor Guidelines 🙏

Pre-requisites:

# Install dependencies
pnpm i

# Enable pre-commit hooks
pnpm simple-git-hooks

# Run tsup in development mode (watching)
pnpm dev

# Run package compilation in parallel with vanilla React example
pnpm run dev:react-example

# Build the package
pnpm build

Unfortunately, importing this package locally into other local projects requires some manual steps. You need to build & pack this package into a .tgz-build and then update this dependency in your other project. These steps must be repeated each time you make changes to this package.

# 1. [THIS PACKAGE] Generate a .tgz package of the build
pnpm tsup && pnpm pack

# 2. [OTHER PROJECT] Add it as a dependency in your other project like:
#    `"@poppyseed/lastic-sdk": "file:../scio-labs-use-inkathon-0.0.X.tgz"`
pnpm add ../use-inkathon/scio-labs-use-inkathon-0.0.X.tgz

# 3. [OTHER PROJECT] Subsequent updates can be done via
pnpm update @poppyseed/lastic-sdk --force