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Integrating Solidity with Next.js

January 2, 2025 By Mohamed Ben Kedim

Introduction

In the ever-evolving world of blockchain development, integrating smart contracts with web applications is a critical skill. Whether you're building a decentralized finance (DeFi) platform, a token marketplace, or any other blockchain-powered application, the ability to connect your smart contract logic to a user-friendly interface is what brings your ideas to life.

In this post, we'll walk you through the process of integrating Solidity code with a Next.js application. By the end of this guide, you'll have a solid understanding of how to write a Solidity smart contract, deploy it using Hardhat, connect it to a Next.js application, and build a user interface to interact with it.

Prerequisites

Development environment setup

Writing and Deploying Your Solidity Smart Contract

To deploy your Solidity smart contract, configure Hardhat for your desired network (local or Ephemery testnet), and compile and deploy the contract using Hardhat commands.

Hardhat configuration example

Smart Contract Web Integration

Learn how to use ethers.js and TypeScript to connect your web application to the Ethereum blockchain. This includes setting up a provider, getting the signer, and interacting with the contract's methods.

Web integration process

Conclusion

In this blog post, we explored the integration of a Solidity smart contract with a Next.js application using ethers.js and TypeScript. This guide provides a practical approach to building decentralized applications with Next.js and Solidity, enabling developers to seamlessly interact with Ethereum smart contracts in their web projects.

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