How do I POST/PUT JSON to a REST API endpoint without specifying Content-Type: application/json header

Question

I am working on typical Spring Boot REST API project and I am trying to figure out why all my POST and PUT endpoints API are getting "Unsupported Media Type" error if I don't specify Content-Type: application/json header.(so, if I unchecked Content-Type: application/json header in Postman, I get this error and everything works fine if I check that.)

Do I need to specify? Are there any ways that I can make them work without Content-Type: application/json header?

Thanks in advance,

Answer 1

You can always use the @RestController for the controller and use the appropriate method like @GetMapping, @PostMapping to make this work. So, basically spring requires content type because the input could be anything.