ASP.NET Core API - Post to accept JSON array with multiple items

[HttpPost]
public async Task<ActionResult<Mission>> PostMission(Mission mission)
{
    if (_context.Missions == null)
    {
        return Problem("Entity set 'MissionContext.Missions' is null.");
    }
    _context.Missions.Add(mission);
    await _context.SaveChangesAsync();

    return CreatedAtAction(nameof(GetMission), new { id = mission.ID }, mission);
}

[HttpPost]
public async Task<ActionResult<Mission>> PostMission(List<Mission> missions)
{
    if (_context.Missions == null)
    {
        return Problem("Entity set 'MissionContext.Missions' is null.");
    }

    foreach (Mission _mission in missions)
    {
        _context.Missions.Add(_mission);
    }

    await _context.SaveChangesAsync();
    //return CreatedAtAction(nameof(GetMission), new { id = mission.ID }, mission);    
    return NoContent();
}