API REST avec Express + Prisma

Stack moderne 2026

• Node.js 20+ : runtime
• Express ou Fastify : framework HTTP
• Prisma : ORM type-safe (alternative : Drizzle)
• Zod : validation schémas
• Jest / Vitest : tests

Code complet API REST users

import express from 'express';
import { PrismaClient } from '@prisma/client';
import { z } from 'zod';

const app = express();
const prisma = new PrismaClient();
app.use(express.json());

const createUserSchema = z.object({
  email: z.string().email(),
  password: z.string().min(8)
});

app.post('/users', async (req, res) => {
  try {
    const data = createUserSchema.parse(req.body);
    const user = await prisma.user.create({ data });
    res.json({ user });
  } catch (err) {
    res.status(400).json({ error: err.message });
  }
});

app.get('/users/:id', async (req, res) => {
  const user = await prisma.user.findUnique({ where: { id: req.params.id } });
  if (!user) return res.status(404).json({ error: 'Not found' });
  res.json({ user });
});

app.listen(3000);