feat: add register, checkUsername, update swagger

server/src/api/controllers/authController.js

@@ -0,0 +1,51 @@
+import User from '../../models/user.js'
+import { genJWT, hashPassword } from '../../utils/auth.js'
+
+export async function issueToken(req, res) {
+  const { user } = req
+  const token = await genJWT({
+    _id: user.id,
+    username: user.username,
+    email: user.email,
+  })
+  res.json({ token })
+}
+
+export async function checkUsername(req, res) {
+  const { username } = req.query
+  const exists = await User.exists({ username })
+  if (exists) {
+    res.status(409).json({
+      message: `"${username}" already exists`,
+    })
+  } else {
+    res.status(200).json({
+      message: `"${username}" is available`,
+    })
+  }
+}
+
+export async function register(req, res, next) {
+  const { username, password, email } = req.body
+  if (!(username && password && email)) {
+    res.status(400).json({
+      message: 'username, password, and email are required',
+    })
+    return
+  }
+  if (await User.exists({ $or: [{ username }, { email }] })) {
+    res.status(409).json({
+      message: 'username or email already exists',
+    })
+    return
+  }
+  const user = new User({
+    username,
+    email,
+  })
+  user.hashedPassword = await hashPassword(password)
+  await user.save()
+  req.user = user
+  res.status(201)
+  next()
+}

server/src/api/routes/auth.js

@@ -1,24 +1,22 @@
 import { Router } from 'express'
 import passport from 'passport'
 
-import { genJWT } from '../../utils/auth.js'
+import {
+  issueToken,
+  register,
+  checkUsername,
+} from '../controllers/authController.js'
 
 const router = Router()
 
-async function issueToken(req, res) {
-  const { user } = req
-  const token = await genJWT({
-    _id: user.id,
-    username: user.username,
-    email: user.email,
-  })
-  res.json({ token })
-}
-
 router.post(
-  '/login/password',
+  '/login',
   passport.authenticate('local', { session: false }),
   issueToken
 )
 
+router.post('/register', register, issueToken)
+
+router.get('/check', checkUsername)
+
 export default router

server/src/api/routes/index.js

@@ -11,7 +11,7 @@ router.get('/', (req, res) => {
   res.send('Hello API!')
 })
 
-router.use(authRouter)
+router.use('/auth', authRouter)
 router.use('/quests', quests)
 router.use(
   '/sessions',