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In the previous course section,

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we worked on this big milestone project, our online shop.

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In this course section,

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we're going to enhance it by adding payments,

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by processing credit card payments to be precise.

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And for implementing this logic and this feature,

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we will tap into a brand new concept

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which we haven't really discussed too much thus far

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and that would be the concept of using services or APIs,

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specifically third-party services or APIs in your projects.

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You'll see it at the example of a service called Stripe

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in this course section,

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which is a service that allows us to add payments.

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But for this course module,

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we are going to discuss services and APIs

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and what that exactly is in detail in a more general way,

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so also outside of using payments,

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so that you will understand what services and APIs are.

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I am then going to introduce you to the Stripe service,

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and I'll explain to you how it can help us handle payments

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in our websites.

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And then we're going to implement Stripe in our project

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to add payments to this website which we've been working on,

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and we'll see how that works, some potential pitfalls,

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and how we can,

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therefore then at the end of this course section,

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have a real online shop where we can handle real payments.