express.js - how to intercept response.send() / response.json()

Question

Lets say I have multiple places where I call response.send(someData). Now I want to create a single global interceptor where I catch all .send meth

Answer 1

for those finding on google, based off the top answer:

app.use((req, res, next) => {
    let oldSend = res.send
    res.send = function(data) {
        console.log(data) // do something with the data
        res.send = oldSend // set function back to avoid the 'double-send'
        return res.send(data) // just call as normal with data
    }
    next()
})