Go VCR with HTTPS support

go-vcr is a Go package which allows you to record and replay your HTTP interactions, in order to provide fast, deterministic and accurate testing of your code.

Thanks to @davars go-vcr has recently received HTTPS support as well, which makes it possible to use go-vcr against an HTTPS endpoint and record your interactions.

Here is a simple test of using go-vcr for recording and replaying HTTPS interactions:

package vcr_test

import (


func TestHTTPS(t *testing.T) {
    // Start our recorder
    r, err := recorder.New("fixtures/iana-reserved-domains")
    if err != nil {
    defer r.Stop() // Make sure recorder is stopped once done with it

    // Create an HTTP client and inject our transport
    client := &http.Client{
        Transport: r.Transport, // Inject our transport!

    url := "https://www.iana.org/domains/reserved"
    resp, err := client.Get(url)
    if err != nil {
        t.Fatalf("Failed to get url %s: %s", url, err)

    body, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        t.Fatalf("Failed to read response body: %s", err)

    wantHeading := "<h1>IANA-managed Reserved Domains</h1>"
    bodyContent := string(body)

    if !strings.Contains(bodyContent, wantHeading) {
        t.Errorf("Heading %s not found in response", wantHeading)

You can find this and also other examples in the go-vcr repository at Github.

Written on February 15, 2016