GET /calculus with single mandatory parameter query, base64 encoded of a valid
infix expression. The only supported operators are + (binary operator), -
(binary operator), * and / ATM.
Succesful response is a status 200 with JSON body {error: false, result: RESULT}
where RESULT is the result of the infix expression.
Invalid infix expression will result in a status 400 with body {error: true, message: MESSAGE} where message is the respective error message.
$ cd calculator
$ ./sbt
> jetty:start
> browseIf browse doesn't launch your browser, manually open
http://localhost:8080/ in your browser.