login flutter api

I want to be able to login via an API to my flutter app. akun twitter tidak bisa login The first part is what is being posted to the API and the second part is the server response as seen on the code below: I/flutter ( 892): {email: [email protected] , password: 123456789} I/flutter ( 892): {errors: [The email field is required. kenapa susah login shopee , The password field is required ]}