Gumroad License Validator

Overview

A super simple tool for macOS Swift developers to check validity of a Gumroad-issued software license keys

Requirements

Requires macOS 12 because it uses async/await APIs.

If you really need it to have a completionHandler-based synchronous version, let me know

Installation

Swift-Gumroad-license-validator is available through Swift Package Manager.

In Xcode, click File > Add Packages...
Select GitHub under Source Control Accounts
Search for Swift-Gumroad-license-validator
Click "Add Package" in bottom right

Usage

    import GumroadLicenseValidator

    let licenseKeyToCheck = "XXXXXXXX-XXXXXXXX-XXXXXXXX-XXXXXXXX"
    
    let client = GumroadClient(productPermalink: "your product permalink")
    
    await client?.isLicenseKeyValid(licenseKeyToCheck)

How to get a product permalink from Gumroad

Go to your product page on Gumroad.

If your product URL is "https://gumroad.com/l/QMGY" your product_permalink would be "QMGY."

How to get a test license key from Gumroad

Log in to your Gumroad account, open your product
Click the URL underneath your product's name to open the page
Click the purchase button ("I want this”, ”Buy”, or whatever you set it up to be)
You will see a checkout window with test card information already entered
Confirm the purchase, and then click “View content” to get the code (you'll also get it in an email)

Good luck with your project

If you're using this package it means you've decided to sell your app on Gumroad. May you have an exciting launch and many sales! Good luck! I'd love it if you let me know about your app, @DanielKasaj on Twitter.

License

Swift-Gumroad-license-validator is available under the MIT license. See the LICENSE file for more information.

dkasaj/GumroadLicenseValidator