Golang-clients

This client intend of incapsulate some routines actions from user and beautifully code. All you need:

• Create the client to any service ("http://yandex.ru")
• Implement and create method by path ("/")
• Execute request to service

Implementation example method of Yandex:

type DefaultMethod struct{ BaseMethod }

func NewDefaultMethod() *DefaultMethod {
      countArgs := 0
      m := NewBaseMethod("/", countArgs)
      m.Method = http.MethodGet
      m.Headers = map[string]string{"cache-control": "no-cache"}
      return &DefaultMethod{BaseMethod: *m}
}

Creating the client:

url := "http://yandex.ru"
opts := clients.Options{}
castoramaClient := clients.NewClientUrl(url, opts)

Request:

m := NewCatalogBasePageMethod(u.Path)
resp, err := p.client.Request(m)
if err != nil {
    panic("internal error of client")
}
if resp.StatusCode != http.StatusOK {
    panic("not OK response from Yandex")
}

Task of client

• This client must provide a code higher abstraction.
• At the same time, it will improve code readability.
• In addition, at the client level, it will be possible to implement a common logic for all parsers / services. For example, you need prometheus to all services. This logic can be added to any parser. Perhaps a minimal changes in the parser / service code is required (add arguments for initialization, for example).
• Instead of classic client, we separate logic and request.

Notice

We use implement the same client for python