express.js - req.body?

Question

express.js - req.body?

I'm new to js, I see this a lot in the code I'm reading

_.pick(req.body, ' ' , ' ')

What does req.body do? And when can I say req.body.something?

node.js
express

Answer 1

req.body holds parameters that are sent up from the client as part of a POST request. See the API.

// POST user[name]=tobi&user[email]=tobi@learnboost.com
req.body.user.name
// => "tobi"

req.body.user.email
// => "tobi@learnboost.com"

// POST { "name": "tobi" }
req.body.name
// => "tobi"