Set http cookie on shopify store domain on app installation

Shopify Apps
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Topic summary

A developer is seeking guidance on setting HTTP cookies on a Shopify store’s domain during app installation.

Technical Context:

  • They have both PHP and Node.js-based apps that are functioning correctly
  • Installation and token handling processes are already working as expected

Core Question:
Whether it’s possible to programmatically set cookies on the merchant’s store domain when an app is installed, and if so, what process or method should be used to accomplish this.

The discussion remains open with no responses yet addressing the feasibility or implementation approach for this cookie-setting requirement.

Summarized with AI on November 2. AI used: claude-sonnet-4-5-20250929.
1

Hi, Is it possible to set http cookie on shopify store domain on app installation, I have a php and another node js based app, which works fine. Installation and token handling are working fine.

Can we set cookie on the shopify store domain, wherever the app is being installed. Any process to do this..