Gain insights into Web3 app development using Solidity and React. Learn to build smart contracts, handle payments, and create frontends with React, Next.js, and Tailwind for decentralized applications.

A Practical Introduction to Developing Web3 Apps Using Solidity and React.png

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In this course, you’ll learn to build smart contracts and Web3 apps using Solidity, Hardhat, React, Next.js, and Tailwind. Web3 apps leverage blockchain and smart contracts to enable transparent interactions, making them ideal for industries like finance, supply chain, gaming, etc.

You’ll learn to initialize and run contracts, define terms and conditions within code, and pass and store values inside contracts. You’ll explore additional functionalities like requiring valid arguments, receiving and sending payments, and ensuring balance constraints. By the end of the course, you’ll finalize the run script and successfully execute smart contracts. You’ll also experience building the frontend using React and related technologies, and learn about the front-end tech stack for Web3 applications.

This course will empower you to become proficient in Web3 app development, enabling you to contribute to the growing decentralized ecosystem and take advantage of the exciting opportunities blockchain technology presents.

An Introduction to Developing Web3 Apps Using Solidity and React

Which keyword can be used to define a contract in Solidity?


Which keyword can be used to define a contract in Solidity?

Who can see the code for a smart contract once it has been deployed on the blockchain?

Who can see the code for a smart contract once it has been deployed on the blockchain?

You'll need to initialize the variables while creating the variables.

You'll need to define the data type while creating the variables.

You'll need to define the data type and value while creating the variables.  

Solidity creates the `getter` function for the `public` variables.

Solidity creates the `setter` function for the `public` variables.

Solidity creates both the `getter` and `setter` functions for the `public` variables.

Which kind of functions does Solidity create when defining `public` variables?  

Which kind of functions does Solidity create when defining <code>public</code> variables?

The argument is stored as part of the permanent storage.

The argument is not stored as part of the permanent storage.

The argument reserves the memory available in the memory stack. 

What does including a `memory` keyword before an argument of a function do in Solidity?

What does including a <code>memory</code> keyword before an argument of a function do in Solidity?

It checks to see if the given conditional is `true`; if not, it reverts the transaction.

It checks to see if the given conditional is `true`; if not, it does nothing.

It checks to see if the given conditional is `true`; if not, it generates an error message.

What does the `required` function do in Solidity?

What does the <code>required</code> function do in Solidity?

You’re given this piece of code:
```js
async function main(){
  await hre.run("compile");
  const Contract =
    await hre.ethers.getContractFactory(
      "Hello"
    );
  const contract = await Contract.deploy();
  await contract.deployed();
} 
```
What is this script written in?

You’re given this piece of code:
<pre><code class="language-js">async function main(){
 await hre.run(&quot;compile&quot;);
 const Contract =
 await hre.ethers.getContractFactory(
 &quot;Hello&quot;
 );
 const contract = await Contract.deploy();
 await contract.deployed();
} 
</code></pre>
What is this script written in?

To run a `.js` file on a local machine, which command is needed?

To run a <code>.js</code> file on a local machine, which command is needed?

You're given the following piece of code:
```js
describe("Partnership", () => {
  it("can be deployed by providing two addresses on initialization", async () => {
  const Contract =
  await hre.ethers.getContractFactory(
  "Partnership"
  );
```
Which folder is this script inside of?

You’re given the following piece of code:
<pre><code class="language-js">describe(&quot;Partnership&quot;, () =&gt; {
 it(&quot;can be deployed by providing two addresses on initialization&quot;, async () =&gt; {
 const Contract =
 await hre.ethers.getContractFactory(
 &quot;Partnership&quot;
 );
</code></pre>
Which folder is this script inside of?

Creating Contracts

Creating Contracts

Take a short quiz to test your understanding of creating contracts. 

Introduction to Web3.0

Introduction to Solidity and Smart Contract Development

Introduction to Web3 App Development Using Solidity and React

Final Project

Appendix

Quiz 1: Creating a Contract