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Gathering detailed insights and metrics for express-openapi-validator

express-openapi-validator - 5.5.7 | npmpackage.info

express-openapi-validator

🦋 Auto-validates api requests, responses, and securities using ExpressJS and an OpenAPI 3.1.x or 3.0.x specification

5.5.7

970

MIT

TypeScript

428.76 kB

40,432,806 5.3

Installations

npm install express-openapi-validator

Developer Guide

BETA

Typescript

Yes

Module System

CommonJS

Node Version

24.0.1

NPM Version

11.3.0 Pull Requests

Open

30

Total

630

Closed

100

Merged

500

Issues

Open

154

Total

453

Closed

299

Releases

183

v5.5.7

Updated on Jun 11, 2025

v5.5.6

Updated on Jun 07, 2025

v5.5.5

Updated on Jun 07, 2025

v5.5.3

Updated on May 24, 2025

v5.5.2

Updated on May 19, 2025

v5.5.1

Updated on May 18, 2025

View All 183 releases

Languages

TypeScript

JavaScript

Shell

TypeScript (99.45%)

JavaScript (0.53%)

Shell (0.02%)

Developer

cdimascio

Download Statistics

Total Downloads

40,432,806

Last Day

61,855

Last Week

395,340

Last Month

1,687,730

Last Year

15,012,057

GitHub Statistics

MIT License

970 Stars

2,061 Commits

224 Forks

18 Watchers

61 Branches

108 Contributors

Updated on Jul 07, 2025

Maintainers

View All 108 Contributors

Package Meta Information

Latest Version

5.5.7

Package Id

express-openapi-validator@5.5.7

Unpacked Size

428.76 kB

Size

80.99 kB

File Count

NPM Version

11.3.0

Node Version

24.0.1

Published on

Jun 11, 2025

Total Downloads

Cumulative downloads

Total Downloads

40,432,806

Last Day

14.5%

61,855

Compared to previous day

Last Week

395,340

Compared to previous week

Last Month

2.5%

1,687,730

Compared to previous month

Last Year

48.2%

15,012,057

Compared to previous year

Weekly Downloads

Monthly Downloads

Yearly Downloads

🦋 express-openapi-validator

An OpenApi validator for ExpressJS that automatically validates API requests and responses using an OpenAPI 3 specification.

🦋express-openapi-validator is an unopinionated library that integrates with new and existing API applications. express-openapi-validator lets you write code the way you want; it does not impose any coding convention or project layout. Simply, install the validator onto your express app, point it to your OpenAPI 3.0.x or 3.1.x specification, then define and implement routes the way you prefer. See an example.

Features:

✔️ request validation
✔️ response validation (json only)
👮 security validation / custom security functions
👽 3rd party / custom formats / custom data serialization-deserialization
🧵 optionally auto-map OpenAPI endpoints to Express handler functions
✂️ $ref support; split specs over multiple files
🎈 file upload
✏️ OpenAPI 3.0.x and 3.1.x spec support
✨ Express 4 and 5 support

Docs:

📖 documentation

Express 5 support available in >=v5.5.0!

OAS 3.1 support available in >=v5.4.0!

NestJS Koa and Fastify now available! 🚀

Install

1npm install express-openapi-validator

Usage

Require/import the openapi validator

1const OpenApiValidator = require('express-openapi-validator');

1import * as OpenApiValidator from 'express-openapi-validator';

Install the middleware

1app.use(
2  OpenApiValidator.middleware({
3    apiSpec: './openapi.yaml',
4    validateRequests: true, // (default)
5    validateResponses: true, // false by default
6  }),
7);

1app.use((err, req, res, next) => {
2  // format error
3  res.status(err.status || 500).json({
4    message: err.message,
5    errors: err.errors,
6  });
7});

Important: Ensure express is configured with all relevant body parsers. Body parser middleware functions must be specified prior to any validated routes. See an example.

Documentation

See the doc for complete documenation

deprecated legacy doc

License

MIT

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

Score

5.3

/10

Last Scanned on 2025-07-07

The Open Source Security Foundation is a cross-industry collaboration to improve the security of open source software (OSS). The Scorecard provides security health metrics for open source projects.

Learn More

Other packages similar to express-openapi-validator

Other packages similar to express-openapi-validator

express-openapi-validator

Installations

Developer Guide

Yes

CommonJS

24.0.1

11.3.0

Pull Requests

30

630

100

500

Issues

154

453

299

Releases

Languages

Developer

cdimascio

Download Statistics

GitHub Statistics

Maintainers

Package Meta Information

Total Downloads

40,432,806

Weekly Downloads

Monthly Downloads

Yearly Downloads

Dependencies

Peer Dependencies

Dev Dependencies

🦋 express-openapi-validator

Install

Usage

Documentation

License

10

10

10

10

10

4

3

0

0

0

0

0

5.3

/10