public async Task <ActionResult> CreateSchoolAsync(School newSchool)
{
var alreadyExistingSchool = await schoolRepository.GetSchoolByNameAsync(newSchool.Name);
if (alreadyExistingSchool != null)
{
return(BadRequest($"A School with the name '{newSchool.Name}' already exists in the Database"));
}
await schoolRepository.CreateSchoolAsync(newSchool);
return(CreatedAtRoute(nameof(GetSchoolByNameAsync), new { name = newSchool.Name }, newSchool));
}