Add validations

routes/user.js

@@ -1,15 +1,56 @@
 let express = require('express')
 let router = express.Router()
 
+const Errors = require('../lib/errors.js')
 let User = require('../models').User
 
 router.post('/', async (req, res) => {
-	 let user = await User.create({
-		username: req.body.username,
-		hash: req.body.password
-	})
+	let user, validationErrors = [];
 
-	res.json(user.toJSON())
+	try {
+		//Validations
+		if(req.body.username === undefined) {
+			validationErrors.push(Errors.missingParameter('username'))
+		} else {
+			if(typeof req.body.username !== 'string') {
+				validationErrors.push(Errors.invalidParameterType('username', 'string'))
+			} if(req.body.username.length < 6) {
+				validationErrors.push(Errors.parmeterLengthTooSmall('username', 6))
+			} if(req.body.username.length > 50) {
+				validationErrors.push(Errors.parmeterLengthTooLarge('username', 50))
+			}
+		}
+
+		if(req.body.password === undefined) {
+			validationErrors.push(Errors.missingParameter('password'))
+		} else {
+			if(typeof req.body.password !== 'string') {
+				validationErrors.push(Errors.invalidParameterType('password', 'string'))
+			} if(req.body.password.length < 6) {
+				validationErrors.push(Errors.parmeterLengthTooSmall('password', 6))
+			} if(req.body.password.length > 100) {
+				validationErrors.push(Errors.parmeterLengthTooSmall('password', 100))
+			}
+		}
+
+		if(errors.length) throw Errors.VALIDATION_ERROR
+
+		user = await User.create({
+			username: req.body.username,
+			hash: req.body.password
+		})
+
+		res.json(user.toJSON())
+	} catch (err) {
+		if(err === Errors.VALIDATION_ERROR) {
+			res.status(400)
+			res.json({
+				errors: validationErrors
+			})
+		} else {
+			res.json(err)
+		}
+	}
 })
 
 module.exports = router