The API via web authentication problem

[czyrski]

Hi there! Great work, I came across this repository today and it looks great.

This issue might not be an issue at all. As far as I understand, the API hosted on herokuapp can be used for learning purpose and I can even authenticate myself to the API to add new entries (which will be cleared every ten minutes).

I tried to authenticate with the username and password given in the documentation but server responses with the message that credentials are wrong. Did I misunderstand? Authentication is possible only when I will build the API on my device or it is able through the web too?