Please follow below steps for HTTP API calling in flutter
Read moreHow do I fetch API in Flutter?
Flutter – Fetching Data From the Internet
Read moreHow do you write an integration test in Flutter?
Run the integration test.
Read moreHow do you run an integration test in Flutter?
Integration Testing In Flutter Apps
Read moreHow do you write a test case for API calls?
How to write a REST API test case with Java script
Read moreHow do I test my UI Flutter?
In order to enable UI testing for the existing Flutter apps, we need to perform the following tasks:
Read moreHow do you use the unit test Flutter app?
How to test a Flutter app
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