Controllers＞UserController.cs

[HttpGet]
public async Task<IActionResult> GetUser([FromQuery]GetUserDto getUser)
{
    var result = await _userService.GetUser(getUser);
    return result;
}

Dtos＞UserDto.cs

public class GetUserDto
{
    [EmailAddress]
    [MaxLength(100)]
    [DefaultValue("XXX@gmail.com")]
    public string? Email { get; set; }
}

public class GetUserResponseDto
{
    public string? Username { get; set; }

    public string? Phone { get; set; }
}

Services＞UserService.cs

public async Task<IActionResult> GetUser(GetUserDto getUser)
{
    return new JsonResult(new { status = "0" });
}

public async Task<IActionResult> GetUser(GetUserDto getUser)
{
    var result = _context.UserProfiles.Where(e => e.Email.Equals(getUser.Email))
        .Select(e => new GetUserResponseDto
        {
            Username = e.Username,
            Phone = e.Phone
        });
    return new JsonResult(new { status = "0", UserInfo = result });
}

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