How to use await in asp.net webapi post method

Question

I am using entity framework and asp.net web API. I want to make the following method async but I do not know where to use await in following code.

[HttpPost]
public async Task<IHttpActionResult> CreateAccount([FromUri]string fullname, string email, string cnic,string username,string password, string logrol )
{

    using (var entity = new Smock_DBEntities())
    {
        Person pr = new Person();
        pr.Full_Name = fullname;
        pr.Email = email;
        pr.CNIC = cnic;
        entity.Persons.Add(pr);
        entity.SaveChanges();
        int prID = entity.Persons.Where(per => per.CNIC == cnic).Select(per => per.Person_ID).First();

        Login log = new Login();
        log.Person_ID = prID;
        log.Username = username;
        log.Password = password;
        log.Login_Role = logrol;
        entity.Logins.Add(log);
        entity.SaveChanges();

        return Ok();
    }         
}

And `int prID = await entity.Persons.Where(....).Select(per => per.Person_ID).FirstAsync();` too :) — CodeNotFound, Jul 17 '17 at 19:21
Possible duplicate of [How and When to use \`async\` and \`await\`](https://stackoverflow.com/questions/14455293/how-and-when-to-use-async-and-await) — Igor, Jul 17 '17 at 19:28

score 2 · Accepted Answer · answered Jul 17 '17 at 20:32

Putting it as an answer with possible places(3 places) where you can put await in your code snippet.

[HttpPost]
public async Task<IHttpActionResult> CreateAccount([FromUri]string fullname, string email, string cnic,string username,string password, string logrol )
{

    using (var entity = new Smock_DBEntities())
    {
        Person pr = new Person();
        pr.Full_Name = fullname;
        pr.Email = email;
        pr.CNIC = cnic;
        entity.Persons.Add(pr);
        await entity.SaveChangesAsync();
        int prID = await entity.Persons.Where(per => per.CNIC == cnic).Select(per => per.Person_ID).FirstAsync();

        Login log = new Login();
        log.Person_ID = prID;
        log.Username = username;
        log.Password = password;
        log.Login_Role = logrol;
        entity.Logins.Add(log);
        await entity.SaveChangesAsync();

        return Ok();
    }         
}

How to use await in asp.net webapi post method

1 Answers1