What's the difference between [HttpGet] and [HttpGet("{id}")]?

Question

What are the differences between HTTPGET method and HTTPGET("{id}") method? What is the API method that is used to update table columns?

[HttpGet]
public IActionResult Get()
{
    return new JsonResult(users);
}

// GET api/values/5
[HttpGet("{id}")]
public IActionResult Get(string id)
{
    return new JsonResult(response);
}

Answer 1

You should take a look at Attribute Routing in Web API.

The first method is routing to a clean api:

/api/controller

The second specifies route value in the attribute and will be called via the following url:

/api/controller/5

The second one is normally used to update existing queries, as you specify specific value in the route whilst the first specifies nothing.