How can I convert a syncronous controller to asyncronous controller using async/await or task in web api controller (.NET core)

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I have a .net core API which has a controller named PowerBoxCircuitCurrent

[HttpGet]
public IActionResult Get()
{
var res = db.PowerBoxCircuitCurrents.ToList();
return Ok(res);
}

Here PowerBoxCircuitCurrents is a service

What I have tried:

I tried dapper.queriesAsync but it's not working

Posted 27-Apr-22 19:49pm

SAURAV KUMAR Apr2022

Updated 30-Apr-22 0:00am

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Chris Copeland · Answer 1 · 2022-04-27T22:31:00

Should be as simple as:

C#

[HttpGet]
public async Task<IActionResult> Get()
{
  // Here you will need to replace the function call with
  // one which is async and produces a list or enumerable
  // As you said in your question that will probably be
  // QueryAsync()
  var res = await db.PowerBox.CircuitCurrents.X();
  return Ok(res);
}

George Swan · Answer 2 · 2022-04-30T00:00:00

Just add the ToListAsync extension to your database call and change the Get method signature to so that it can await the returned value.

C#

public async Task<IActionResult> Get()
       {
         var myList= await db.PowerBox.CircuitCurrents.X().ToListAsync();
         return new JsonResult(new { data = myList });//serialise the list to json
        }

How can I convert a syncronous controller to asyncronous controller using async/await or task in web api controller (.NET core)

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