Built by a student who got an internship and couldn't ship code

You can code.
But can you deploy it?

I learned to code. Then I got my first SWE internship—and froze. I couldn't set up a database. I'd never touched Docker. CI/CD was a foreign language.

So I built what I wish existed: a place to practice production skills—not watch tutorials.

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The interview question that breaks junior devs:

"Great, you built a to-do app.
How do you deploy it?"

Your CS degree taught algorithms. Bootcamps taught React. Neither taught you what happens after you write the code.

✗

What school teaches

Algorithms, data structures, syntax

✗

What bootcamps teach

React, Node, "build a CRUD app"

✓

What jobs require

Git workflows, Docker, CI/CD, testing, debugging production

Practice, don't watch.

Real challenges. Real environments. Instant feedback.

🔒 app.prodready.dev/challenge/auth-endpoint
🔧 Backend / REST APIs Medium

Build a User Authentication Endpoint

Your task is to create a secure POST endpoint that accepts a user's email and password in the request body. The endpoint should validate the input, upon successful authentication, return a signed JWT token for subsequent requests.

  • • Use Node.js with Express framework.
  • • Implement body-parser to handle JSON requests.
  • • Validate that both email and password fields are present and not empty.
  • • Verify the password is at least 3 characters long.
  • • Simulate user validation against a predefined user database.
  • • Generate a JWT token using a secret key.
  • • Return a 200 OK status with the token in a JSON object upon success.

Use bcrypt.compare() to verify passwords and jwt.sign() to generate tokens. 

{
  "success": true,
  "token": "eyJhbGciOiJIUz..."
}
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const login = async (req, res) => {
  try {
    const { email, password } = req.body;

    if (!email || !password) {
      return res.status(400).json({
        message: 'Email and password required'
      });
    }

    const user = await User.findOne({ email });
    // TODO: Verify password & generate JWT

  } catch (err) { ... }
};
INSERT MODE Ln 12, Col 8
✓ return 400 if email missing
✓ return 401 invalid creds
✗ return 200 valid token
AssertionError
Expected 200, got 500
2 passed • 1 failed
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The Missing Semester

What you actually need to know on day 1 of the job.

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Git That Won't Break Production

Rebasing, merge conflicts, branching strategies. Fix the mess before your PR gets rejected.

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Docker & CI/CD Pipelines

"It works on my machine" isn't good enough. Learn to containerize and automate deployment.

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Testing That Actually Matters

Unit tests, integration tests, E2E. Write tests that catch bugs before your users do.

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Auth & Security Basics

JWTs, OAuth, password hashing. Don't be the one who leaks API keys to GitHub.

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