Relay-style apps should be rewritten into extensions

[lubos]

I will be replacing Relay concept for Extensions.

You can see how more seamless than Relay they are:

New extension for ZATCA Phase 1 QR Code Generation

In the latest version (25.6.29), there is new simpler way to generate QR codes on invoices. It has been implemented as an extension. If your business has the country set to Saudi Arabia, the extension will be added automatically: [image] When viewing sales invoice, you will see extension button below the invoice: [image] Clicking on it will load the extension: [image] What this extension does: It will check if you have Image Custom Field on sales invoices created. If not, it will crea…

Also, with Relay, it turns out Facebook was “caught” doing similar thing but to track users even if they were in incognito mode.

Meta called out for tracking Android users across the web without their...

Now this is significant development because web-browser vendors will make it difficult for internet apps to be able to make requests to localhost which is something that Relay button was relying on when it comes to desktop edition users.

Extensions solve this issue because they run within IFRAME and can communicate with Manager using POST MESSAGE API.

Theme Enhancer extension is using this concept so is now ZATCA Phase 1 QR Generator extension and it seems to be working very well across the board

Here is spec file for ZATCA Phase 1 QR Generator to see how extensions are meant to be developed.

http://extensions.manager.io/ZATCA-Phase-1-QR-Generator

Another benefit of extensions is that users can have multiple extensions available on single page.

[lubos]

I’m planning to remove Relay button in the next 2 weeks. If you are still using Relay button or you detect your users are still using Relay button, please let them know within your integration to migrate them to extensions.