feat!: Drop compatibility with Node.js 20.

Signed-off-by: Paolo Insogna <paolo@cowtech.it>

Author: ShogunPanda

.github/workflows/ci.yml

@@ -3,14 +3,19 @@ name: CI
 on: [push, pull_request, workflow_dispatch]
 jobs:
   ci:
-    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        node-version: [22, 24, 25]
+    runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Use supported Node.js Version
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
-          node-version: 20.18.0
+          node-version: ${{ matrix.node-version }}
       - name: Restore cached dependencies
         uses: actions/cache@v3
         with:

.swcrc

@@ -29,39 +29,32 @@
   "exports": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "scripts": {
-    "dev": "swc --strip-leading-paths --delete-dir-on-start -s -w -d dist src",
-    "build": "swc --strip-leading-paths --delete-dir-on-start -d dist src",
-    "postbuild": "concurrently npm:lint npm:typecheck",
+    "build": "rm -rf dist && tsc -p tsconfig.json && npm run lint",
     "format": "prettier -w src test",
     "lint": "eslint --cache",
-    "typecheck": "tsc -p . --emitDeclarationOnly",
-    "test": "c8 -c test/config/c8-local.json node --env-file=test.env --test test/*.test.ts",
-    "test:ci": "c8 -c test/config/c8-ci.json node --env-file=test.env --test-reporter=tap --test test/*.test.ts",
-    "ci": "npm run build && npm run test:ci",
+    "test": "c8 -c test/config/c8-local.json node --test --test-reporter=cleaner-spec-reporter test/*.test.ts",
+    "ci": "npm run build && npm run test",
     "prepublishOnly": "npm run ci",
     "postpublish": "git push origin && git push origin -f --tags"
   },
   "dependencies": {
     "ajv": "^8.17.1",
-    "fastify-plugin": "^5.0.1",
-    "http-errors-enhanced": "^3.0.2"
+    "fastify-plugin": "^5.1.0",
+    "http-errors-enhanced": "^4.0.1"
   },
   "devDependencies": {
-    "@cowtech/eslint-config": "10.2.0",
-    "@swc-node/register": "^1.10.9",
-    "@swc/cli": "0.5.2",
-    "@swc/core": "^1.10.3",
-    "@types/node": "^22.10.2",
+    "@cowtech/eslint-config": "^11.0.0",
+    "@cowtech/typescript-config": "^0.2.2",
+    "@types/node": "^24.10.1",
     "ajv-formats": "^3.0.1",
     "c8": "^10.1.3",
-    "chokidar": "^4.0.3",
-    "concurrently": "^9.1.1",
-    "eslint": "^9.17.0",
-    "fastify": "^5.2.0",
-    "prettier": "^3.4.2",
-    "typescript": "^5.7.2"
+    "cleaner-spec-reporter": "^1.0.0",
+    "eslint": "^9.39.1",
+    "fastify": "^5.6.2",
+    "prettier": "^3.6.2",
+    "typescript": "^5.9.3"
   },
   "engines": {
-    "node": ">= 20.18.0"
+    "node": ">= 22.21.0"
   }
 }

package.json

@@ -16,9 +16,9 @@ import {
   type GenericObject,
   type NodeError,
   type RequestSection
-} from './interfaces.js'
-import { upperFirst } from './utils.js'
-import { convertValidationErrors, validationMessagesFormatters, type ValidationResult } from './validation.js'
+} from './interfaces.ts'
+import { upperFirst } from './utils.ts'
+import { convertValidationErrors, validationMessagesFormatters, type ValidationResult } from './validation.ts'
 
 export function handleNotFoundError(request: FastifyRequest, reply: FastifyReply): void {
   handleErrors(new NotFoundError('Not found.'), request, reply)
@@ -72,6 +72,7 @@ export function handleErrors(error: FastifyError | Error, request: FastifyReques
     error = new BadRequestError(upperFirst(validationMessagesFormatters.jsonEmpty()))
   } else if (
     code === 'MALFORMED_JSON' ||
+    code === 'FST_ERR_CTP_INVALID_JSON_BODY' ||
     error.name === 'SyntaxError' ||
     error.message === 'Invalid JSON' ||
     error.stack!.includes('at JSON.parse')

src/handlers.ts

@@ -1,16 +1,16 @@
 import { type FastifyError, type FastifyInstance, type FastifyPluginOptions } from 'fastify'
 import fastifyPlugin from 'fastify-plugin'
-import { handleErrors, handleNotFoundError } from './handlers.js'
+import { handleErrors, handleNotFoundError } from './handlers.ts'
 import {
   type Configuration,
   kHttpErrorsEnhancedConfiguration,
   kHttpErrorsEnhancedResponseValidations
-} from './interfaces.js'
-import { addResponseValidation, compileResponseValidationSchema } from './validation.js'
+} from './interfaces.ts'
+import { addResponseValidation, compileResponseValidationSchema } from './validation.ts'
 
-export * from './handlers.js'
-export * from './interfaces.js'
-export { convertValidationErrors, niceJoin, validationMessagesFormatters } from './validation.js'
+export * from './handlers.ts'
+export * from './interfaces.ts'
+export { convertValidationErrors, niceJoin, validationMessagesFormatters } from './validation.ts'
 
 export const plugin = fastifyPlugin(
   function (instance: FastifyInstance, options: FastifyPluginOptions, done: (error?: FastifyError) => void): void {

src/index.ts

@@ -1,10 +1,10 @@
 import { Ajv, type Options } from 'ajv'
 import addFormats from 'ajv-formats'
 import {
-  FastifyServerOptions,
   type FastifyInstance,
   type FastifyReply,
   type FastifyRequest,
+  type FastifyServerOptions,
   type ValidationResult as FastifyValidationResult,
   type RouteOptions
 } from 'fastify'
@@ -17,8 +17,8 @@ import {
   type ResponseSchemas,
   type ValidationFormatter,
   type Validations
-} from './interfaces.js'
-import { get } from './utils.js'
+} from './interfaces.ts'
+import { get } from './utils.ts'
 
 // Fix CJS/ESM interoperability
 
@@ -52,7 +52,9 @@ function buildAjv(options?: Options, plugins?: (Function | [Function, unknown])[
 
   // Add plugins
   let formatPluginAdded = false
+  /* c8 ignore next - else */
   for (const pluginSpec of plugins ?? []) {
+    /* c8 ignore next - else */
     const [plugin, pluginOpts]: [Function, unknown] = Array.isArray(pluginSpec) ? pluginSpec : [pluginSpec, undefined]
 
     if (plugin.name === 'formatsPlugin') {
@@ -330,6 +332,7 @@ export function compileResponseValidationSchema(this: FastifyInstance, configura
 
   for (const [instance, validators, schemas] of this[kHttpErrorsEnhancedResponseValidations]) {
     // Create the compiler using exactly the same options as fastify
+    /* c8 ignore next - else */
     const ajvOptions = (instance[kOptions as keyof FastifyInstance] as FastifyServerOptions)?.ajv ?? {}
     const compiler = buildAjv(ajvOptions.customOptions, ajvOptions.plugins)
 

src/validation.ts

@@ -2,7 +2,7 @@ import fastify, { type FastifyError, type FastifyInstance, type FastifyPluginOpt
 import { INTERNAL_SERVER_ERROR } from 'http-errors-enhanced'
 import { deepStrictEqual, match } from 'node:assert'
 import { test } from 'node:test'
-import { plugin as fastifyHttpErrorsEnhanced } from '../src/index.js'
+import { plugin as fastifyHttpErrorsEnhanced } from '../src/index.ts'
 
 async function buildServer(options: FastifyPluginOptions = {}): Promise<FastifyInstance> {
   const server = fastify({

test.env

@@ -16,7 +16,7 @@ import {
 } from 'http-errors-enhanced'
 import { deepStrictEqual, match } from 'node:assert'
 import { test } from 'node:test'
-import { plugin as fastifyHttpErrorsEnhanced, handleErrors } from '../src/index.js'
+import { plugin as fastifyHttpErrorsEnhanced, handleErrors } from '../src/index.ts'
 
 type Callback = () => void
 

test/hooks.test.ts

@@ -1,6 +1,6 @@
 import { deepStrictEqual, ifError } from 'node:assert'
 import { test } from 'node:test'
-import { get, upperFirst } from '../src/utils.js'
+import { get, upperFirst } from '../src/utils.ts'
 
 test('Utils', async () => {
   await test('.upperFirst should correctly convert strings', () => {