Why?

More and more time I'm come studying the language Go. And, concurrency programming is a large topic anywhere. Therefore, I created this small project for practice my studies.

How Works?

The objective is consuming a API REST, in this case, I choice this API http://ergast.com/mrd/, because I'm a passionate for Formula 1. I need to get information of circuits of Formula 1 this year. Reading the API, I noted that she not provide a method to get all circuits in only one requisition. I code a worker pools that request 20 circuits simultaneously, using goroutines and channels of language Go. In my local machine, the results were impressive. Without threads, in average 12.0s, with 20 works and 20 jobs duration 1.9s.

Get Started

By default, only one job and work when run script, otherwise, it's possible more fast increasing jobs or works. Access file main.go and edit follow lines:

const numberOfJobs = 1
const numberOfWorks = 1

Run follow command:

$ time go run main.go
{Shanghai International Circuit}
{Circuit de Spa-Francorchamps}
{Circuit Gilles Villeneuve}
{Sepang International Circuit}
{Silverstone Circuit}
{Circuit de Monaco}
{Marina Bay Street Circuit}
{Hungaroring}
{Autódromo José Carlos Pace}
{Hockenheimring}
{Circuit of the Americas}
{Bahrain International Circuit}
{Red Bull Ring}
{Circuit de Catalunya}
{Suzuka Circuit}
{Autódromo Hermanos Rodríguez}
{Sochi International Street Circuit}
{Albert Park Grand Prix Circuit}
{Autodromo Nazionale di Monza}
{Baku City Circuit}

go run main.go  1.05s user 0.13s system 61% cpu 1.912 total