Ao acessar http://localhost:8080/api/public/login retorna o seguinte erro
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Mon Jun 10 09:53:58 UTC 2019 There was an unexpected error (type=Method Not Allowed, status=405). Request method 'GET' not supported
o mesmo acontece com https://instalura-api.herokuapp.com/api/public/login
No terminal está retornando o erro:
2019-06-10 06:51:11.420 WARN 6200 --- [nio-8080-exec-5] .w.s.m.s.DefaultHandlerExceptionResolver : Resolved exception caused by Handler execution: org.springframework.web.HttpRequestMethodNotSupportedException: Request method 'GET' not supported