Api not working on flutter

I have been trying to implement Traccar api on flutter but it keeps giving me errors. The api request doesn’t work. When I try it on postman the api works. Do you have Any solutions or resources to see how to integrate Traccar api on flutter ?

I'm sure that there are plenty of resources about flutter out there. There's nothing special about Traccar API. It's the most common JSON based REST API.

When I used one of your demo server urls it works fine but when I use my server url it doesn’t work.

Do you have HTTPS on your server? Just a wild guess.

Yeah it does have HTTPS