WEBVTT

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We have already mentioned that we will use the YouTube API for the data extraction.

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But first, let's answer the question what is an API?

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To explain this, I will use a popular restaurant analogy.

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So going from left to right, you, the client, look at the menu and decide what you want.

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Here we will make a request to the waiter.

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The waiter, which represents the API, then takes your request to the kitchen which is the server,

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and finally the kitchen.

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Once it has prepared, your request will send the response back to the waiter and the waiter passes

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on this response back to you.

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Now that we understand better what an API does, in order for us to be able to make a request to the

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waiter, which in our case is the YouTube API, we need to have what is called an API key.

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So let's go over how we can get one in the next lecture.