chore: switch to zod for schema validation

package.json

@@ -13,7 +13,7 @@
     "lint": "eslint --ext .ts . --fix",
     "typecheck": "tsc --noEmit",
     "format": "prettier --config .prettierrc 'src/**/*.ts' --write",
-    "test": "jest --runInBand",
+    "test": "jest --runInBand --detectOpenHandles",
     "prepare": "husky install",
     "db:generate": "prisma generate",
     "db:migrate": "prisma migrate deploy",
@@ -33,10 +33,11 @@
     "cors": "^2.8.5",
     "express": "^4.18.2",
     "helmet": "^7.0.0",
-    "jsonschema": "^1.4.1",
     "prisma": "^5.1.1",
     "winston": "^3.10.0",
-    "winston-daily-rotate-file": "^4.7.1"
+    "winston-daily-rotate-file": "^4.7.1",
+    "zod": "^3.22.2",
+    "zod-validation-error": "^1.5.0"
   },
   "devDependencies": {
     "@commitlint/cli": "^17.6.6",

src/server/server.ts

@@ -2,7 +2,8 @@ import * as bodyParser from 'body-parser';
 import cors from 'cors';
 import express, { Request, Response } from 'express';
 import helmet from 'helmet';
-import { Validator } from 'jsonschema';
+import { z } from 'zod';
+import { fromZodError } from 'zod-validation-error';
 import { addition } from '../utils/addition';
 import { logger } from '../utils/logger';
 
@@ -12,20 +13,19 @@ server.use(express.json());
 server.use(bodyParser.json());
 server.use(helmet());
 
-const validator = new Validator();
-const schema = {
-  id: '/PostRequest',
-  type: 'object',
-  properties: {
-    value: { type: 'number' }
-  },
-  required: ['value']
-};
+const schema = z.object({
+  value: z.number()
+});
 
 server.post('/', async (req: Request, res: Response) => {
   logger.info(`POST / with ${JSON.stringify(req.body)}`);
-  if (!validator.validate(req.body, schema).valid) {
-    return res.status(400).json({ message: 'Malformed query parameters' });
+
+  try {
+    schema.parse(req.body);
+  } catch (err) {
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    const validationError = fromZodError(err as any);
+    return res.status(400).json({ message: validationError.message });
   }
 
   const { value } = req.body;

yarn.lock

@@ -3318,11 +3318,6 @@ jsonparse@^1.2.0:
   resolved "https://registry.npmjs.org/jsonparse/-/jsonparse-1.3.1.tgz"
   integrity sha512-POQXvpdL69+CluYsillJ7SUhKvytYjW9vG/GKpnf+xP8UWgYEM/RaMzHHofbALDiKbbP1W8UEYmgGl39WkPZsg==
 
-jsonschema@^1.4.1:
-  version "1.4.1"
-  resolved "https://registry.yarnpkg.com/jsonschema/-/jsonschema-1.4.1.tgz#cc4c3f0077fb4542982973d8a083b6b34f482dab"
-  integrity sha512-S6cATIPVv1z0IlxdN+zUk5EPjkGCdnhN4wVSBlvoUO1tOLJootbo9CquNJmbIh4yikWHiUedhRYrNPn1arpEmQ==
-
 kind-of@^6.0.3:
   version "6.0.3"
   resolved "https://registry.npmjs.org/kind-of/-/kind-of-6.0.3.tgz"
@@ -4902,3 +4897,13 @@ yocto-queue@^0.1.0:
   version "0.1.0"
   resolved "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz"
   integrity sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==
+
+zod-validation-error@^1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/zod-validation-error/-/zod-validation-error-1.5.0.tgz#2b355007a1c3b7fb04fa476bfad4e7b3fd5491e3"
+  integrity sha512-/7eFkAI4qV0tcxMBB/3+d2c1P6jzzZYdYSlBuAklzMuCrJu5bzJfHS0yVAS87dRHVlhftd6RFJDIvv03JgkSbw==
+
+zod@^3.22.2:
+  version "3.22.2"
+  resolved "https://registry.yarnpkg.com/zod/-/zod-3.22.2.tgz#3add8c682b7077c05ac6f979fea6998b573e157b"
+  integrity sha512-wvWkphh5WQsJbVk1tbx1l1Ly4yg+XecD+Mq280uBGt9wa5BKSWf4Mhp6GmrkPixhMxmabYY7RbzlwVP32pbGCg==