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In the previous sections and therefore for

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a couple of hours, actually,

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we focused on getting data into a database,

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on storing data in databases.

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But there we had a look at data

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like the name of a restaurant,

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or the name of a blog post or a date.

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But what if you actually want to build a website that allows

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for file uploads?

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What if your website needs users to upload images, videos,

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anything like that?

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That's what this core section will be about.

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We'll explore how exactly file uploads work

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and which different parts make up

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the process of uploading files

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seen from the perspective of a web developer.

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And then we're going to dive into those different parts,

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and we are going to explore how you add controls

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and feedback to your website to allow users to upload files.

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So, how you work in your HTML code

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to allow users to upload files.

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But then we are also going to work on the server side

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on the back end where those files arrive

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and we'll see how we can store those files there

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and how we can ultimately also serve

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those files back to the visitors.

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Of course not all uploaded files

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have to be served to visitors,

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but if we think about use cases like profile images,

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where users upload an image of themselves

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which should be visible to other users,

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then of course it's not done with storing that file alone,

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we also need a way of serving that file

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back to other visitors.

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So, there are a lot of connected concepts and topics,

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and we're going to dive into all of them

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in this course section.