pseudo_strategy.go

pseudo_strategy.go

package main

import (
	"fmt"
	"net/http"
)

func main() {
	fakeArg := "fake"

	switch fakeArg {
	case "fake":
		callService(&FakeServiceClient{})
	case "http":
		callService(&HttpServiceClient{})
	default:
		fmt.Println("Service not defined")
		return
	}
}

func callService(serviceClient ServiceClient) {
	_, err := TestMyClient(serviceClient)
	if err != nil {
	    fmt.Println(err.Error())
	}
	
	if err == nil {
	    fmt.Println("Success!")
	}
}

type ServiceClient interface {
    Get(req *http.Request) (*http.Response, error)
}

func TestMyClient(client ServiceClient) (response *http.Response, err error) {
    request, err := http.NewRequest("GET", "https://www.reallycoolurl.com", nil)
    if (err != nil) {
        return
    }

    response, err = client.Get(request)
    if err != nil {
	return
    }
   
    return
}

type HttpServiceClient struct {
}

func (c *HttpServiceClient) Get(req *http.Request) (*http.Response, error) {
    return http.Get("https://www.google.com")
}

type FakeServiceClient struct {
}

func (c *FakeServiceClient) Get(req *http.Request) (*http.Response, error) {
    return &http.Response{}, nil
}