this project used mvc ControllerBase, when should we use ApiController?

Hi Jason, thanks so much for the code, it's really useful and very educational.

I was looking at the Authenticate method and wondering a few things:

1. It takes a UserDto as a parameter but it only actually needs and uses the the Username and Password properties from that object. Would it be more obvious to people consuming the API if the username and password were simply parameters, or if there was a CredentialsDto that just had the username and password?

2. There's no return type defined for the Authenticate method, so documentation builders like Swagger won't describe the endpoint fully for anyone who's going to use the endpoint. Would it be worth defining a LoggedInUserDto object instead of the anonymous object that's currently returned so the method can then be set to ActionResult<LoggedInUserDto>?

Happy to stick in a pull request with those changes if you think they would be useful

Yes I figured it out soon..I Checked register method with below code and Postaman returns with success.
public IActionResult Register([FromForm]UserDto userDto)
{
// map dto to entity
var user = _mapper.Map(userDto);
return Ok(new
{
user
});
but if exact code is in place in Register method. then the execution flow hit by another blocker.
Postman request

Exception :

What the reasoning of not using it and is it possible to use instead of the custom user service?

I'm creating an API without a frontend. I'm able to create a new user and log in with the account, but how do I access the user from within a controller without sending the username and password each time I want to access the API?

How does this work (on not) with this:
https://docs.microsoft.com/en-us/aspnet/core/security/authentication/scaffold-identity?view=aspnetcore-2.1&tabs=visual-studio#scaffold-identity-into-an-empty-project

Hello Jason,

Thank you very much, your articles and codes are very helpful to me as a newbie now.

I am trying to build a blog webapi with forking this repository, I use Npgsql connect to a PostgreSQL database, and add some methods, but the database return error message "too many clients connected" when I debugging.

So how to close the connections in webapi? I read some documents but can't find a way to do with it.

my repo fork from yours :
https://github.com/Rackar/aspnet-core-registration-login-api

When i try to hit register got error as below