HTTP code dominates standard API communication and are one of the general standards across any general-purpose API. It resolves common issues for any request that is made to the server, whether it is successful, whether it is producing a server error, and so on. HTTP resolves every single request with HTTP code with ranges that indicate the nature of the code. HTTP codes are standards (http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html) based on various code and response actions are taken accordingly, so the concept of not reinventing the wheel essentially applies here. In this section, we will look at some of the standard code ranges along with their meanings.