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Setup

Installation and System Requirements#

To install, run the following:

npm install @celo/contractkit// oryarn add @celo/contractkit

You will need Node.js v12.x.

Initializing the Kit#

To start working with ContractKit you need a kit instance and a valid net to connect with. In this example will use alfajores (you can read more about it here)

import { newKit } from "@celo/contractkit";
const kit = newKit("https://alfajores-forno.celo-testnet.org");

Go to the page about Forno for details about different connection types and network endpoints.

Initialize the Kit with your own node#

If you are hosting your own node (you can follow this guide to run one) you can connect our ContractKit to it.

import { newKit } from "@celo/contractkit";
// define localUrl and port with the ones of your node
const kit = newKit(`${localUrl}:${port}`);

Same as Web3 we support WebSockets, RPC and connecting via IPC. For this last one you will have to initialize the kit with an instances of Web3 that has a valid IPC Provider

import Web3 from "web3";import { newKitFromWeb3 } from "@celo/contractkit";
const web3Instance: Web3 = new Web3(  new Web3.providers.IpcProvider("/Users/myuser/Library/CeloNode/geth.ipc", net));
const kit = newKitFromWeb3(web3Instance);