<p>Hi all,
Can someone explain, what is http roundtripper? </p>
<p>Thanks </p>
<hr/>**评论：**<br/><br/>pierrrre: <pre><p><a href="http://golang.org/pkg/net/http/#RoundTripper" rel="nofollow">http://golang.org/pkg/net/http/#RoundTripper</a>
It's like a low level http client.</p></pre>zero_coding: <pre><p>what can I do with a roundtripper?</p></pre>jewishobo: <pre><p>Here is a long video about using the roundtripper interface to make an HTTP/2 client. <a href="https://www.youtube.com/watch?v=yG-UaBJXZ80">https://www.youtube.com/watch?v=yG-UaBJXZ80</a></p></pre>comrade_donkey: <pre><p>Take a look at http.Transport</p></pre>drvd: <pre><p>It is an interface, so all you can do is invoke its single method RoundTrip and I think the documentation is pretty clear.</p></pre>kodemizer: <pre><p>For http clients, it's behaviour can be configured using different RoundTripper implementations. By default, an http client will use an appropriately configured Transport struct (which satisfies a RoundTripper). </p>
<p>By default, the Transport struct is configured to re-use network connections from a pool, timeout after a certain amount of time, use a certain proxy service etc.</p>
<p>If you wanted to modify the behavior of your http client you have two options:</p>
<ol>
<li><p>Use the pre-existing Transport struct and configure appropriately. </p></li>
<li><p>Write your very own implementation. As long as it satisfies RoupTripper, it can be used. You could do something creative like implement http over SSH, or some other crazy madness. </p></li>
</ol></pre>
