Send data from backend to frontend without request

I am using 3 tools to build my App.

  1. Third party tool
  2. Micronaut / Spring boot
  3. Flutter

Whenever a third party tool sends some data to my Micronaut application, micronaut processes the data and makes some changes as per requirements. Now micronaut will send some data to my frontend application(flutter)

I am very new to Flutter and I know I can get data when I make an API call but my question is that how can micronaut send data to my Flutter App without an API request. I want to send data to my flutter app as soon as micronaut completes processing the data.

SO: spring boot - Flutter: Send data from backend to frontend without request - Stack Overflow


Thanks in advance

Have you tried webhooks?