How can I get a user (not the currently logged in user) by Id, name, email or other search criteria, using UserManager?

Question

This should be the simplest thing in the world to do, but I can't find any information about it.

As a temporary solution, I have resorted to this:

ApplicationUser user = await db.Users.Where(u => u.Email == email).FirstOrDefaultAsync();

But what I originally imagined I could do was something like this:

await ApplicationUser user = userManager.GetUserAsync(email);

I already have access to userManager in my controller.

Answer 1

ApplicationUser firstUser = await userManager.FindByEmailAsync(email)
ApplicationUser secondUser = await userManager.FindByIdAsync(id)
ApplicationUser thirdUser= await userManager.FindByNameAsync(name)

You can read full article, and get info about all userManager methods here

Answer 2

You can use FindBy...() methods to find users by parameters.

FindByEmailAsync() gets the user, if any, associated with the normalized value of the specified email address.

FindByEmailAsync() finds and returns a user, if any, who has the specified userId .

FindByLoginAsync() retrieves the user associated with the specified external login provider and login provider key.

FindByNameAsync() finds and returns a user, if any, who has the specified user name.

var user = await userManager.FindByEmailAsync(email);
var user2 = await userManager.FindByIdAsync(id);

var loginProvider = "Github";
var providerKey = "Stian";
var user3 = await userManager.FindByLoginAsync(loginProvider, providerKey);

var user4 = await userManager.FindByNameAsync(userName);