public async Task <ActionResult> Login([FromBody] User user)
{
string hashed = new HashingService().SHA1UTF8Hash(user.password);
string suffix = hashed.Substring(5);
HaveIBeenPwnedService service = new HaveIBeenPwnedService(config);
string breachedHashes = await service.GetBreachedHashes(hashed);
Regex reg = new Regex($@"{suffix}:([0-9]*)", RegexOptions.Singleline);
bool existing = reg.IsMatch(breachedHashes);
int occurances = Int32.Parse(reg.Matches(breachedHashes)[0].Groups[1].Value);
return(Ok(new { breachedPassword = existing, numberOfBreaches = occurances }));
}