Exploring responses
As with controller-based projects, with route handlers of minimal APIs as well, we can directly return a string or a class (either synchronously or asynchronously):
- If we return a string (as in the examples of the previous section), the framework writes the string directly to the response, setting its content type to
text/plainand the status code to200 OK - If we use a class, the object is serialized into the JSON format and sent to the response with the
application/jsoncontent type and a200 OKstatus code
However, in a real application, we typically need to control the response type and the status code. In this case, we can use the static Results class, which allows us to return an instance of the IResult interface, which in minimal APIs acts how IActionResult does for controllers. For instance, we can use it to return a 201 Created response rather than a 400 Bad Request or a 404 Not Found message. L et’s look at some examples:
app...