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Now, that is it for this course section.

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As mentioned multiple times throughout the section,

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you can absolutely work on the front end.

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You can improve the feedback, the user interface there.

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You can show a loading and a error state,

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and give the user better feedback about what's happening.

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That's all standard react, not next specific,

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and definitely not API route specific.

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This module was about practicing API routes, though.

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And here, you'll learn a lot about them.

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You, again, saw that you can create static

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and dynamic API routes, where data is encoded in the URL.

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And you learned how you add your own API routes

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that you can run any service and logic you want in there

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and that you can, for example,

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use them to connect to a real database.

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In this case to MongoDB.

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You then learned that you can send back different responses,

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both error and success responses,

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and how you can manage your code flow,

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and the function execution

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with your different return statements

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with the different responses and with different if checks,

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for example, by checking for the request method.

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Being able to use API routes is very important

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because for a lot of websites and web applications

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you will be building you don't just want

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to have pages that can be pre-rendered.

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But you often do want certain service and logic

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that should be executed on demand.

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For example, when a user signs up for a newsletter,

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or leaves a comment, just as we added it here.