Integrate Paddle into WordPress and create a license server

We sell a Software through WordPress site. To support such functionality as payment, licenses, e-mail confirmation, account restoration, invoices, VAT and etc. we ask you to build in a third party ([login to view URL]) solution into the site. How should it look From a customer's perspective who is willing to "BUY" a license: 1. User opens WordPress site 2. Clicks a "BUY" button. 3. Paddle shows (this is done by Paddle) a purchase form 4. If Paddle confirms a payment, it sends request (with a customer details) to WordPress site and asks to generate a license 5. WordPress generates a license and sends it back to the Paddle 6. Paddle forwards license to the customer by e-mail 7. Purchase completed From a customer's perspective who wants to "USE" a license: 1. User starts a Software (Client) 2. User inserts a License 3. To validate the license Software (Client) sends REST request to the WordPress (Server) 4. Server replies with a list of Software packages which can be used with that specific license 5. Software (Client) asks User to select a package 6. User selects package he needs and clicks a "NEXT" button. 7. The rest steps are automatic and can be omitted from the task description Server requirements: 1. Generate and store license details: - license in string format. The field is indexed. This can be encrypted or randomly generated text of A-Za-z0-9 characters. No less than 200 symbols in length - name in string format. This is a full name of a buyer. This can be a personal name for a "named" licenses, or a company name - e-mail in string format for direct contacts - date of a purchase. This is a DateTime format - end date of the validity. DateTime format. A date when the license expires. 2. Support REST requests: - Generate a license. This request will be sent by Paddle after the payment confirmation. The Paddle will send a name, e-mail, and the license type (f.e. personal, company). After creating a new license server should reply with the license text. Keep in mind this require a high security standards, and should not allow anybody to make requests on their own - Get a list of packages to install. By providing a license text, server should verify and reply with a list of packages (read below), available through that specific license. Each package includes: a. version of the package b. release date c. URL to download 3. Manage a list of packages. Each package is a single file. In addition to this extra details should be stored and manually edited in MySQL. At the moment these details are: a. version of the package b. release date c. URL to download Live examples: 1. [login to view URL] WallabyJS pricing page with a Paddle implementation 2. Template we will use: [login to view URL] Pricing table of the same template: [login to view URL]