Safari extension iOS - messaging from app to extension

Question

With iOS 15, Apple had made it possible to create Safari extension for iOS as well. I'm currently in the process of bringing an existing macOS Safari extension to iOS. My problem is that there doesn't seem to be the option to send a message from the host app to the extension. It is possible to answer a request from the extension through the beginRequest(with:) function. However, I actively need to send a message to the extension after an user action. In macOS, this can be done through the dispatchMessage(withName:toExtensionWithIdentifier:userInfo:completionHandler:) function as described here: https://developer.apple.com/documentation/safariservices/safari_web_extensions/messaging_between_the_app_and_javascript_in_a_safari_web_extension. This function is unfortunately not available for iOS.

Would greatly appreciate any ideas for solving this problem.

@ Til Jordan we you able to access the stored data using 'UserDefaults', at the javascript extension side . If so please let me know — D Madhu Kiran Raju, May 09 '22 at 11:05

score 2 · Answer 1 · answered Sep 20 '21 at 09:24

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You can enable permission ["nativeMessaging"] in manifest file of the safari extension Use appGroup to store data between the extension and your application. In SafariWebExtensionHandler, you can response appGroup Data to the message called from any extension javascript file.

answered Sep 20 '21 at 09:24

Cao Khắc Lê Duy

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@ Cao can you share a sample code snippet if you were able to access from the javascript side – D Madhu Kiran Raju May 09 '22 at 11:06

Safari extension iOS - messaging from app to extension

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