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Okay, so once you are familiar with the key elements of the front end and you are comfortable with

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the tutorial of next JS, the tutorial of Vercel, and also the tutorial of Create Llama.

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Let's talk a little bit about the key elements in the back end side of the full stack application.

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The most important one is fast API.

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So this is right now the the most popular framework for creating the back end of web applications with

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Python.

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So it is not the most popular framework for creating back end web applications.

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That is node.

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But when we are in the artificial intelligence field, since the artificial intelligence engineers,

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the traditional ones, they come from Python.

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This is the back end framework that has become more popular for them.

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Okay, so right now in the world of Lama index and Lang chain, this is the most popular framework you

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are going to find.

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And for back end a building in the a full stack application world.

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So in order to learn fast API we.

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As always, recommend you to go to the.

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Let's go to the English version.

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Okay.

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Let's go to the fast API documentation page and especially to this very quick and easy tutorial they

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provide.

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We are giving you a notebook.

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We are giving you also a code, a project, a coding project in the GitHub repository.

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But this is what you are going to build yourself once you, uh, complete the steps of the quick tutorial,

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fast API is provided.

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You will see how to install fast API in your computer, how to create a very basic back end for one

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application, and how to include some of the very basic elements there.

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So my recommendation for you is just get comfortable with the basic tutorial of fast API and get familiar

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with what you can find in the fast API documentation.

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Fast API is a very simple a framework in the basic uh.

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In the basic step, it can also be more complex.

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But the important thing for you is to understand, you know, the basic parts and get familiar with

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what you can find in the documentation page.

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So you will be ready to come back here whenever necessary.

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Okay.

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So go there.

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Uh, go to the uh, tutorial if you find any problem, you know, where to go, uh, chat, GPT four,

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etc. and once you are comfortable with this, uh, tutorial, we will go to the next step talking about

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fast API with long chain.

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We will see that in the next lesson.