Action method responsible for generating Jwt

Generate.cs

[AllowAnonymous]
[HttpPost]
public async Task<IActionResult> Generate([FromBody] LoginViewModel model)
{
    if (!ModelState.IsValid) return BadRequest("Could not create token");

    var user = await _userManager.FindByEmailAsync(model.Email);

    if (user == null) return BadRequest("Could not create token");

    var result = await _signInManager.CheckPasswordSignInAsync(user, model.Password, false);

    if (!result.Succeeded) return BadRequest("Could not create token");

    var userClaims = await _userManager.GetClaimsAsync(user);

    userClaims.Add(new Claim(JwtRegisteredClaimNames.Sub, user.Email));
    userClaims.Add(new Claim(JwtRegisteredClaimNames.Jti, Guid.NewGuid().ToString()));

    var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_tokenOptions.Key));
    var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha256);

    var token = new JwtSecurityToken(
        issuer: _tokenOptions.Issuer,
        audience: _tokenOptions.Issuer,
        claims: userClaims,
        expires: DateTime.Now.AddMinutes(30),
        signingCredentials: creds);

    return Ok(new JwtSecurityTokenHandler().WriteToken(token));
}