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Instructor: Our next web API is REST

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which is the star of this course, actually.

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So, what is REST?

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REST is also an acronym.

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In this case, it stands for Representational State Transfer.

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Yes, that is quite complicated, I know,

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and we'll explain it later.

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REST was designed in the year 2000 by Roy Fielding

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and it is based on URL + JSON.

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You won't see here XML, or complex envelopes

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or anything like it.

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It is quite simple.

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You send to URL, and you get back JSON.

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REST is a message style protocol,

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meaning, we are not calling a specific method or procedure.

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We are just calling a URL and passing him message.

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The URL endpoint should be able to understand

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what to do with this message

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and then pass it along and return us the response.

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As mentioned earlier,

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REST is the De Facto Standard for APIs.

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Almost all the major websites today

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expose REST API and you are expected to use it.

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And, of course, we'll talk about it a lot later.

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So, we'll go on.