Using TypeScript with React: Benefits, API Integration, and Automatic Type Generation

TypeScript is a programming language that is a strict syntactical superset of JavaScript and adds optional static typing to the language. It was developed and is maintained by Microsoft.

Benefits of Using TypeScript in a React Application:

1. Type Safety: TypeScript can help catch type-related errors in your code, preventing runtime errors and making it easier to maintain and scale your application.
2. Improved Code Understanding: TypeScript can provide better documentation and make it easier for other developers to understand the intent of your code.
3. Better Autocomplete and Code Navigation: Many code editors have excellent support for TypeScript, making it easier to write code and navigate through a codebase.
4. Easier Refactoring: With TypeScript, it's easier to refactor code because the type system can help ensure that all of the necessary updates are made.
5. Integration with JSX: TypeScript has good integration with JSX, the syntax used for writing React components, making it easier to work with React and TypeScript together.

Overall, using TypeScript in a React application can help improve the quality and maintainability of your code, and make it easier for other developers to work with your codebase.

We will be using jsonplaceholder API and TypeGenie. To generate the types automatically, we will first:

1. Call the API endpoint in the browser or use Postman.

2. Then copy the response and place it inside transform-tools. We will use the mono-type setting, which bundles and connects all types within one interface.

3. After that, we copy our TypeScript code into our React project.

4. Perform an Axios request using useEffect and save the results into a useState with the type we just generated.

5. Then, we combine all of those to have the following:

import axios from "axios";
import { useEffect, useState } from "react";

export const TypeGeneration = () => {
  const [data, setData] = useState<
    Array<{
      userId: number;
      id: number;
      title: string;
      completed: boolean;
    }>
  >([]);

  useEffect(() => {
    async function fetchData() {
      const response = await axios.get(
        "https://jsonplaceholder.typicode.com/todos"
      );
      setData(response.data);
    }
    fetchData();
  }, []);

  return (
    <div>
      {data.map((e) => (
        <div key={e.id}>
          {e.title} - {e.completed ? "Completed" : "Not Completed"}
        </div>
      ))}
    </div>
  );
};