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auth0/JWTDecode.swift 3.0.0
A JWT decoder for iOS, macOS, tvOS, and watchOS
⭐️ 485
🕓 19 weeks ago
iOS macOS watchOS tvOS
.package(url: "https://github.com/auth0/JWTDecode.swift.git", from: "3.0.0")

JWTDecode.swift

Version CircleCI Coverage Status License

📚 Documentation • 🚀 Getting Started • 📃 Support Policy • 💬 Feedback

This library doesn't validate the JWT. Any well-formed JWT can be decoded from Base64URL.

Migrating from v2? Check the Migration Guide.

Documentation

Note Check the Support Policy to learn when dropping Xcode, Swift, and platform versions will not be considered a breaking change.

Getting Started

Requirements

  • iOS 12.0+ / macOS 10.15+ / tvOS 12.0+ / watchOS 6.2+
  • Xcode 13.x / 14.x
  • Swift 5.5+

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:

https://github.com/auth0/JWTDecode.swift

Then, select the dependency rule and press Add Package.

Cocoapods

Add the following line to your Podfile:

pod 'JWTDecode', '~> 3.0'

Then, run pod install.

Carthage

Add the following line to your Cartfile:

github "auth0/JWTDecode.swift" ~> 3.0

Then, run carthage bootstrap --use-xcframeworks.

Usage

See all the available features in the API documentation ↗

  1. Import the framework
import JWTDecode
  1. Decode the token
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.

if let email = jwt["email"].string {
    print("Email is \(email)")
}

The supported conversions are:

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.

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.

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

Only the last 4 major platform versions are supported, starting from:

  • iOS 12
  • macOS 10.15
  • macCatalyst 13
  • tvOS 12
  • watchOS 6.2

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 13 will cease to be supported when iOS 17 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:

Raise an issue

To provide feedback or report a bug, please raise an issue on our issue tracker.

Vulnerability reporting

Please do not report security vulnerabilities on the public GitHub issue tracker. The Responsible Disclosure Program details the procedure for disclosing security issues.


Auth0 Logo

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.

GitHub

link
Stars: 485
Last commit: 5 days ago
jonrohan Something's broken? Yell at me @ptrpavlik. Praise and feedback (and money) is also welcome.

Dependencies

Release Notes

3.0.0
19 weeks ago

💡 Check the Migration Guide to understand the changes required to migrate your application to v3.

⚠️ BREAKING CHANGES

  • Rename DecodeError and error case #162 (Widcket)
  • Drop support for Objective-C [SDK-3405] #149 (Widcket)
  • Remove ID token validator [SDK-3395] #145 (Widcket)
  • Drop support for old platform versions [SDK-3386] #143 (Widcket)
  • Drop support for old Swift versions [SDK-3394] #142 (Widcket)

Added

  • Add subscript getter for claims [SDK-3421] #156 (Widcket)

Changed

Swiftpack is being maintained by Petr Pavlik | @ptrpavlik | @swiftpackco | API | Analytics