We have already mentioned that we will use the YouTube API for the data extraction.
But first, let's answer the question what is an API?
To explain this, I will use a popular restaurant analogy.
So going from left to right, you, the client, look at the menu and decide what you want.
Here we will make a request to the waiter.
The waiter, which represents the API, then takes your request to the kitchen which is the server,
and finally the kitchen.
Once it has prepared, your request will send the response back to the waiter and the waiter passes
on this response back to you.
Now that we understand better what an API does, in order for us to be able to make a request to the
waiter, which in our case is the YouTube API, we need to have what is called an API key.
So let's go over how we can get one in the next lecture.