How to fire a custom Flow trigger from a checkout UI Extension?

I have created a checkout extension that allows a customer to submit their birthday. I also created a custom flow trigger to capture that birthday and then use Flow to take action with that birthday using another app. I can’t seem to figure out how to run the flowTriggerReceive Admin API mutation from inside a checkout extension while keeping the access token private.

Might be worth asking in the Shopify Developer Community forums as well.

Hey @kjdointhings , just wanted to share that our app, Flow Plus, supports triggering Shopify Flows using webhooks. For your use case, you can send an HTTP POST request from the Checkout Extension to the specified channel/webhook URL, which will, in turn, trigger the Shopify Flow.

Let me know if you need any assistance or have questions about implementing this!