CreateDatabaseUsersTableIfNotExists creates a table named 'users' for the given database pointer if the table has not already existed.

CreateUserToDatabaseUsersTableAndResponseJsonOfUser creates the user given in the context to the database table 'users'.

DeleteUserFromDatabaseUsersTableAndResponseJsonOfUserName deletes the user whose name is given in the context parameter from the database table 'users'.

ResponseJsonOfAllUsersFromDatabaseUsersTable responses to the client the json of all users from the database table 'users'.

ResponseJsonOfUserFromDatabaseUsersTable responses to the client the json of the user given in the context parameter from the database table 'users'.

UpdateUserPasswordInDatabaseUsersTableAndResponseJsonOfUser updates the password of the user in the database table 'users' whose name is given in the context parameter and the requested JSON object.

A Status contains an http status code and its associated error message.

An User represents an user tuple in the database table 'users'.