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https://github.com/auth0/jwtdecode.swift
A JWT decoder for iOS, macOS, tvOS, and watchOS
https://github.com/auth0/jwtdecode.swift
dx-sdk ios jwt swift
Last synced: about 2 hours ago
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A JWT decoder for iOS, macOS, tvOS, and watchOS
- Host: GitHub
- URL: https://github.com/auth0/jwtdecode.swift
- Owner: auth0
- License: mit
- Created: 2014-10-01T17:12:53.000Z (almost 10 years ago)
- Default Branch: master
- Last Pushed: 2024-09-17T05:52:40.000Z (8 days ago)
- Last Synced: 2024-09-24T21:04:28.749Z (about 7 hours ago)
- Topics: dx-sdk, ios, jwt, swift
- Language: Swift
- Homepage: https://auth0.github.io/JWTDecode.swift
- Size: 2.88 MB
- Stars: 637
- Watchers: 55
- Forks: 121
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS
Awesome Lists containing this project
README
[](https://codecov.io/github/auth0/JWTDecode.swift)
📚 [**Documentation**](#documentation) • 🚀 [**Getting Started**](#getting-started) • 📃 [**Support Policy**](#support-policy) • 💬 [**Feedback**](#feedback)
**This library doesn't validate the JWT. Any well-formed JWT can be decoded from Base64URL.**
Migrating from v2? Check the [Migration Guide](V3_MIGRATION_GUIDE.md).
## Documentation
- [**API Documentation**](https://auth0.github.io/JWTDecode.swift/documentation/jwtdecode) - documentation auto-generated from the code comments that explains all the available features.
+ [JWT](https://auth0.github.io/JWTDecode.swift/documentation/jwtdecode/jwt)
+ [Claim](https://auth0.github.io/JWTDecode.swift/documentation/jwtdecode/claim)
+ [JWTDecodeError](https://auth0.github.io/JWTDecode.swift/documentation/jwtdecode/jwtdecodeerror)
- [**Auth0 Documentation**](https://auth0.com/docs) - explore our docs site and learn more about Auth0.
> [!IMPORTANT]
> Check the [Support Policy](#support-policy) to learn when dropping Xcode, Swift, and platform versions will not be considered a **breaking change**.
## Getting Started
### Requirements
- iOS 14.0+ / macOS 11.0+ / tvOS 14.0+ / watchOS 7.0+
- Xcode 15.x
- Swift 5.9+
### Installation
#### Swift Package Manager
Open the following menu item in Xcode:
**File > Add Packages...**
In the **Search or Enter Package URL** search box enter this URL:
```text
https://github.com/auth0/JWTDecode.swift
```
Then, select the dependency rule and press **Add Package**.
#### Cocoapods
Add the following line to your `Podfile`:
```ruby
pod 'JWTDecode', '~> 3.2'
```
Then, run `pod install`.
#### Carthage
Add the following line to your `Cartfile`:
```text
github "auth0/JWTDecode.swift" ~> 3.2
```
Then, run `carthage bootstrap --use-xcframeworks`.
### Usage
**See all the available features in the [API documentation ↗](https://auth0.github.io/JWTDecode.swift/documentation/jwtdecode)**
1. Import the framework
```swift
import JWTDecode
```
2. Decode the token
```swift
let jwt = try decode(jwt: token)
```
#### JWT parts
| Part | Property |
|:-------------------|:----------------|
| Header dictionary | `jwt.header` |
| Claims in JWT body | `jwt.body` |
| JWT signature | `jwt.signature` |
#### Registered claims
| Claim | Property |
|:------------------------|:-----------------|
| **aud** Audience | `jwt.audience` |
| **sub** Subject | `jwt.subject` |
| **jti** JWT ID | `jwt.identifier` |
| **iss** Issuer | `jwt.issuer` |
| **nbf** Not Before | `jwt.notBefore` |
| **iat** Issued At | `jwt.issuedAt` |
| **exp** Expiration Time | `jwt.expiresAt` |
#### Custom claims
You can retrieve a custom claim through a subscript and then attempt to convert the value to a specific type.
```swift
if let email = jwt["email"].string {
print("Email is \(email)")
}
```
The supported conversions are:
```swift
var string: String?
var boolean: Bool?
var integer: Int?
var double: Double?
var date: Date?
var array: [String]?
```
You can easily add a convenience accessor for a custom claim in an extension.
```swift
extension JWT {
var myClaim: String? {
return self["my_claim"].string
}
}
```
#### Error handling
If the JWT is malformed the `decode(jwt:)` function will throw a `JWTDecodeError`.
```swift
catch let error as JWTDecodeError {
print(error)
}
```
## Support Policy
This Policy defines the extent of the support for Xcode, Swift, and platform (iOS, macOS, tvOS, and watchOS) versions in JWTDecode.swift.
### Xcode
The only supported versions of Xcode are those that can be currently used to submit apps to the App Store. Once a Xcode version becomes unsupported, dropping it from JWTDecode.swift **will not be considered a breaking change**, and will be done in a **minor** release.
### Swift
The minimum supported Swift minor version is the one released with the oldest-supported Xcode version. Once a Swift minor becomes unsupported, dropping it from JWTDecode.swift **will not be considered a breaking change**, and will be done in a **minor** release.
### Platforms
We support only the last four major versions of any platform, including the current major version.
Once a platform version becomes unsupported, dropping it from JWTDecode.swift **will not be considered a breaking change**, and will be done in a **minor** release. For example, iOS 14 will cease to be supported when iOS 18 gets released, and JWTDecode.swift will be able to drop it in a minor release.
In the case of macOS, the yearly named releases are considered a major platform version for the purposes of this Policy, regardless of the actual version numbers.
## Feedback
### Contributing
We appreciate feedback and contribution to this repo! Before you get started, please see the following:
- [Auth0's general contribution guidelines](https://github.com/auth0/open-source-template/blob/master/GENERAL-CONTRIBUTING.md)
- [Auth0's code of conduct guidelines](https://github.com/auth0/open-source-template/blob/master/CODE-OF-CONDUCT.md)
- [JWTDecode.swift's contribution guide](CONTRIBUTING.md)
### Raise an issue
To provide feedback or report a bug, please [raise an issue on our issue tracker](https://github.com/auth0/JWTDecode.swift/issues).
### Vulnerability reporting
Please do not report security vulnerabilities on the public GitHub issue tracker. The [Responsible Disclosure Program](https://auth0.com/responsible-disclosure-policy) details the procedure for disclosing security issues.
---
Auth0 is an easy to implement, adaptable authentication and authorization platform. To learn more checkout Why Auth0?
This project is licensed under the MIT license. See the LICENSE file for more info.