NewMockAuthyClient returns a mock authy client for testing.

NewNSQClient returns a new NSQ client that will connect to the NSQ server and the specified url.

NewRedisClient creates a new RedisClient.

NewSMTPClient creates a new SMTP client for sending emails to Registry users.

FormatHeader formats an SMTP header in "Key: Value\r\n" format.

SMTPFormatMessage formats an SMTP message with recipient address, subject and body, using proper headers and \r\n line breaks.

ErrAuthyDisabled means authy isn't enabled here.

MockAuthyClient is used in testing.

NSQStatsData contains the important info returned by a call to NSQ's /stats endpoint, including the number of items in each topic and queue.

RedisClient is a crude and deliberately limited implementation that returns JSON only.