How do sites get my photo from the social network?

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Sergey2014-11-20 17:05:22

JavaScript

Sergey, 2014-11-20 17:05:22

About two years ago I met many sites that imitate a message from VKontakte, and my photo was inserted there (accordingly, I was authorized at this VKontakte). So now I asked myself this question, how is this possible? Is it a frame or a cross-domain request or some kind of api, how did they do it technically?

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3 answer(s)

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Vlad Timofeev, 2014-11-20
@PyTiMa

OAuth, social media APIs

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m0rd, 2014-11-20
@m0rd

Here is another article for general development.

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sivabur, 2015-10-23
@sivabur

It seems to be like embedding a widget on a page and using it to identify it.