Registration

Goal

This snapshot advances Beaconrock Digest by teaching you to validate accounts and store bcrypt hashes.

Every numbered folder is a complete app. Run this stage independently, then compare it with the previous folder.

Prerequisites

Use Node.js 20+, npm, and Docker for Postgres stages.

Port 3005 must be free. Copy .env.example before starting database stages.

• Node.js and npm
• A code editor and terminal
• Docker from part 4 onward

Concepts

Registration normalizes email, checks uniqueness, and stores a one-way hash.

Keep the server boundary visible: routeLoader$ reads trusted data; routeAction$ validates input and re-checks authorization before mutations.

Walkthrough

Accept a form POST via routeAction$, validate password length, hash, and save.

Read the example, then open the matching snapshot. The repository includes the surrounding setup and error handling.

export const useRegister = routeAction$(async (data) => {
  const hash = await hashPassword(data.password)
  await db.insert(users).values({ email: data.email, passwordHash: hash })
})

Run and verify

Enter 06-Registration, install dependencies, copy .env.example, and start Qwik City on port 3005.

Open http://127.0.0.1:3005. Watch the terminal for validation and database errors.

docker compose up -d
git clone https://github.com/michaeldunga1/fcc-qwik-blog.git
cd fcc-qwik-blog/06-Registration
npm install
cp .env.example .env
npm run dev

Troubleshooting

Duplicate email should return a clear form error.

For database failures, confirm Docker is running and the beaconrock_NN name matches the snapshot. Never commit .env or node_modules.

• Read the first error first
• Restart after environment changes
• Never commit secrets

Try this

Try a short password and a duplicate email.

Test a happy path and one invalid or unauthorized request.

• Make one small change
• Test it in the browser
• Compare with the next snapshot only after it works