ScrapeFlow Full Stack SaaS Course: NextJs, React, Typescript, React-Flow, Prisma, and ReactQuery

In this tutorial, we will be creating a full stack SaaS application called ScrapeFlow using Next.js, React, Typescript, React-Flow, Prisma, and ReactQuery. ScrapeFlow will be a web scraping tool that allows users to extract data from websites and store it in a database.

1. Setting up the backend with Prisma

First, let’s set up the backend of our application using Prisma. Prisma is an ORM that allows us to interact with our database using a type-safe API. To get started, create a new folder for your backend and run the following commands:

npx create-nx-workspace@latest

Next, add the Prisma package to your project:

yarn add prisma

Now, let’s set up Prisma. Create a new file called schema.prisma in your prisma folder and define your database schema. Here is an example schema:

datasource db {
  provider = "postgresql"
  url      = env("DATABASE_URL")
}

generator client {
  provider = "prisma-client-js"
}

model Website {
  id          Int      @id @default(autoincrement())
  url         String
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt
}

Next, run the following command to generate your Prisma client:

npx prisma generate

You can now start building your API routes using Prisma client to interact with your database.

1. Setting up the frontend with Next.js

Next, let’s set up the frontend of our application using Next.js. Next.js is a React framework that allows us to build server-side rendered applications with ease. To get started, create a new folder for your frontend and run the following commands:

npx create-next-app@latest

Now, add the ReactFlow package to your project:

yarn add react-flow

Next, create a new page in your pages folder called index.tsx. In this file, you can start building your frontend components using React and ReactFlow. Here is an example component using ReactFlow:

import { useEffect, useState } from 'react';
import ReactFlow from 'react-flow-renderer';

const ScrapingTool = () => {
  const [elements, setElements] = useState([]);

  useEffect(() => {
    // Fetch data from your API and set it to elements
  }, []);

  return (
    <div style={{ height: '800px' }}>
      <ReactFlow elements={elements} />
    </div>
  );
};

export default ScrapingTool;

1. Setting up ReactQuery

ReactQuery is a powerful tool that allows us to manage data fetching and caching in our application. To get started, add the ReactQuery package to your project:

yarn add react-query

Next, create a custom hook to fetch data from your API using ReactQuery. Here is an example custom hook:

import { useQuery } from 'react-query';

const useWebsites = () => {
  return useQuery('websites', async () => {
    const response = await fetch('/api/websites');
    return response.json();
  });
};

export default useWebsites;

Now, you can use this custom hook in your React components to fetch data from your API and display it in your frontend.

1. Putting it all together

Now that you have set up your backend with Prisma, your frontend with Next.js and ReactFlow, and ReactQuery for data fetching, you can start building out your full stack SaaS application, ScrapeFlow.

You can add features such as CRUD operations for websites, web scraping functionality, data visualization using ReactFlow, and more. Remember to test your application thoroughly and optimize it for performance.

I hope this tutorial was helpful in getting you started with building a full stack SaaS application using Next.js, React, Typescript, ReactFlow, Prisma, and ReactQuery. Happy coding!