A 5-Year-Old Could Follow This TypeScript SDK Development Guide ~ Part 3: Making Test Apps
2024-7-9 04:40:13 Author: hackernoon.com(查看原文) 阅读量:6 收藏

Helloooooooo!

Hope you're doing great! This is SMY! 👋 Let's jump right in 🚀

This is Part 3 of our SDK development series where we will dive into creating test apps for react, browser, node, and legacy node.

Contents:

  • Setting up tsup for different execution environments
  • Creating our apps

Step 1: Setting Up tsup for Different Environments

At the root of the project create tsup.config.ts file, and paste the following content:

import { defineConfig } from "tsup";

export default defineConfig({
  clean: true,
  dts: true,
  entry: ["src/index.ts"],
  format: ["cjs", "esm", "iife"],
  minify: true,
});

clean - Clean the output directory before each build.

dts - type definitions for TypeScript.

entry - specifying the entry point.

format - cjs for legacy, esm for newer node projects and iife for browsers.

minify - minifies our code and reduces bundle size.

No extra configuration is needed, as tsup will automatically look for this file and handle everything for us :)

Now, exit and re-rerun the build command.

npm run build

You will see the following output in our dist folder.

index.cjs - for CJS output

index.js - for ESM

index.global.js - for browsers

Step 2: Create a Node App

In example-apps/Node, create a index.js file. Paste the following content:

import sdk from "../../dist/index.js";

console.log(await sdk.fetchUsers());

Now, run the file with a node in a separate terminal, and head over to the folder:

node index.js

You will see the output in the terminal.

Step 3: Create a Legacy Node App

In example-apps/Legacy-Node, create a index.cjs file, and paste the following content:

const sdk = require("../../dist/index.cjs");

sdk.default.fetchUsers().then((users) => console.log(users));

Now, run the file with a node in a separate terminal, and head over to the folder:

node index.cjs

You will see the output in the terminal.

Step 4: Create a Browser App

In example-apps/Browser, create a index.html file, and paste the following content:

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="../../dist/index.global.js"></script>
  </head>
  <body>
    This is a Test HTML

    <script>
      sdk.fetchUsers().then((users) => console.log(users));
    </script>
  </body>
</html>

Open the file in the browser, you should see the following response in the inspect element's console tab:

Step 5: Create a React App

Create a Link to our SDK to behave as a library for projects without publishing.

npm link

In example-apps, create a react app, for example, with vite:

npm create vite@latest

After successfully creating a react app, run the following command in the React root folder to link our SDK.

npm link ts-lib

In place of ts-lib, it should be your SDK/Library name in the package.json.

After creating the React app, open a component file like App.jsx, and integrate SDK like the following:

import sdk from "ts-lib";

console.log(await sdk.fetchUsers());

Full view:

import { useState } from "react";
import reactLogo from "./assets/react.svg";
import viteLogo from "/vite.svg";
import "./App.css";
import sdk from "ts-lib";

console.log(await sdk.fetchUsers());

function App() {
  const [count, setCount] = useState(0);

  return (
    <>
      <div>
        <a href="https://vitejs.dev" target="_blank">
          <img src={viteLogo} className="logo" alt="Vite logo" />
        </a>
        <a href="https://react.dev" target="_blank">
          <img src={reactLogo} className="logo react" alt="React logo" />
        </a>
      </div>
      <h1>Vite + React</h1>
      <div className="card">
        <button onClick={() => setCount((count) => count + 1)}>
          count is {count}
        </button>
        <p>
          Edit <code>src/App.tsx</code> and save to test HMR
        </p>
      </div>
      <p className="read-the-docs">
        Click on the Vite and React logos to learn more
      </p>
    </>
  );
}

export default App;

Run the react App, and head over to the console; it should look like the following:

Wrapping Up:

We just completed the steps to build and run our SDK in different environments.

Head over to Part 4 to publish our SDK.

.....

Now, you're equipped with the knowledge to build your own SDK. Happy coding! 🚀

That's it, folks! Hope it was a good read for you. Thank you! ✨

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