What does body-parser do with express?

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To handle HTTP POST requests in Express.js version 4 and above, you need to install the middleware module called body-parser.

body-parser extracts the entire body portion of an incoming request stream and exposes it on req.body.

The middleware was a part of Express.js earlier but now you have to install it separately.

This body-parser module parses the JSON, buffer, string and URL encoded data submitted using HTTP POST request. Install body-parser using NPM as shown below.

npm install body-parser --save

edit in 2019-april-2:
in [email protected] the body-parser middleware bundled with express. for more details see this

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