System Design: Netflix
<p>Let’s design a <a href="https://netflix.com/" rel="noopener ugc nofollow" target="_blank">Netflix</a> like video streaming service, similar to services like <a href="https://www.primevideo.com/" rel="noopener ugc nofollow" target="_blank">Amazon Prime Video</a>, <a href="https://www.disneyplus.com/" rel="noopener ugc nofollow" target="_blank">Disney Plus</a>, <a href="https://www.hulu.com/" rel="noopener ugc nofollow" target="_blank">Hulu</a>, <a href="https://youtube.com/" rel="noopener ugc nofollow" target="_blank">Youtube</a>, <a href="https://vimeo.com/" rel="noopener ugc nofollow" target="_blank">Vimeo</a>, etc.</p>
<h2>What is Netflix?</h2>
<p>Netflix is a subscription-based streaming service that allows its members to watch TV shows and movies on an internet-connected device. It is available on platforms such as the Web, iOS, Android, TV, etc.</p>
<h2>Requirements</h2>
<p>Our system should meet the following requirements:</p>
<h2>Functional requirements</h2>
<ul>
<li>Users should be able to stream and share videos.</li>
<li>The content team (or users in YouTube’s case) should be able to upload new videos (movies, tv shows episodes, and other content).</li>
<li>Users should be able to search for videos using titles or tags.</li>
<li>Users should be able to comment on a video similar to YouTube.</li>
</ul>
<h2>Non-Functional requirements</h2>
<ul>
<li>High availability with minimal latency.</li>
<li>High reliability, no uploads should be lost.</li>
<li>The system should be scalable and efficient.</li>
</ul>
<h2>Extended requirements</h2>
<ul>
<li>Certain content should be <a href="https://en.wikipedia.org/wiki/Geo-blocking" rel="noopener ugc nofollow" target="_blank">geo-blocked</a>.</li>
<li>Resume video playback from the point user left off.</li>
<li>Record metrics and analytics of videos.</li>
</ul>
<h2>Estimation and Constraints</h2>
<p>Let’s start with the estimation and constraints.</p>
<p><em>Note: Make sure to check any scale or traffic-related assumptions with your interviewer.</em></p>
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