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// Copyright Verizon Media. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// A HTTP wrapper which handles some errors and provides a way to replace the HTTP client by a mock.
// Author: bratseth
package utils
import (
"net/http"
"net/url"
"strings"
"time"
)
// Set this to a mock HttpClient instead to unit test HTTP requests
var ActiveHttpClient = CreateClient(time.Second * 10)
type HttpClient interface {
Do(request *http.Request, timeout time.Duration) (response *http.Response, error error)
}
type defaultHttpClient struct {
client *http.Client
}
func (c *defaultHttpClient) Do(request *http.Request, timeout time.Duration) (response *http.Response, error error) {
if c.client.Timeout != timeout { // Create a new client with the right timeout
c.client = &http.Client{Timeout: timeout,}
}
return c.client.Do(request)
}
func CreateClient(timeout time.Duration) HttpClient {
return &defaultHttpClient{
client: &http.Client{Timeout: timeout,},
}
}
// Convenience function for doing a HTTP GET
func HttpGet(host string, path string, description string) *http.Response {
url, urlError := url.Parse(host + path)
if urlError != nil {
Error("Invalid target url '" + host + path + "'")
return nil
}
return HttpDo(&http.Request{URL: url,}, time.Second * 10, description)
}
func HttpDo(request *http.Request, timeout time.Duration, description string) *http.Response {
response, error := ActiveHttpClient.Do(request, timeout)
if error != nil {
Error("Could not connect to", strings.ToLower(description), "at", request.URL.Host)
Detail(error.Error())
}
return response
}
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