# validate

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---

A validator for OpenAPI v2 specifications and JSON schema draft 4.

## Announcements

* **2025-12-19** : new community chat on discord
  * a new discord community channel is available to be notified of changes and support users
  * our venerable Slack channel remains open, and will be eventually discontinued on **2026-03-31**

You may join the discord community by clicking the invite link on the discord badge (also above). [![Discord Channel][discord-badge]][discord-url]

Or join our Slack channel: [![Slack Channel][slack-logo]![slack-badge]][slack-url]

## Status

API is stable.

## Import this library in your project

```cmd
go get github.com/go-openapi/validate
```

## Contents

This package provides helpers to validate Swagger 2.0. specification (aka OpenAPI 2.0). 

* A validator for Swagger specifications
* A validator for JSON schemas draft4
* Helper functions to validate individual values (used by code generated by [go-swagger](https://github.com/go-swagger/go-swagger)).
  * Required, RequiredNumber, RequiredString
  * ReadOnly
  * UniqueItems, MaxItems, MinItems
  * Enum, EnumCase
  * Pattern, MinLength, MaxLength
  * Minimum, Maximum, MultipleOf
  * FormatOf

### FAQ

* Does this library support OpenAPI 3?

> No.
> This package currently only supports OpenAPI 2.0 (aka Swagger 2.0).
> There is no plan to make it evolve toward supporting OpenAPI 3.x.
> This [discussion thread](https://github.com/go-openapi/spec/issues/21) relates the full story.
>
> An early attempt to support Swagger 3 may be found at: <https://github.com/go-openapi/spec3>

## Change log

See <https://github.com/go-openapi/validate/releases>

## References

<https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md>

## Licensing

This library ships under the [SPDX-License-Identifier: Apache-2.0](./LICENSE).

## Other documentation

* [All-time contributors](./CONTRIBUTORS.md)
* [Contributing guidelines](.github/CONTRIBUTING.md)
* [Maintainers documentation](docs/MAINTAINERS.md)
* [Code style](docs/STYLE.md)

## Cutting a new release

Maintainers can cut a new release by either:

* running [this workflow](https://github.com/go-openapi/validate/actions/workflows/bump-release.yml)
* or pushing a semver tag
  * signed tags are preferred
  * The tag message is prepended to release notes

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