react js express js is there a way to return collection name code example

Example 1: http header express

app.get('/', (req, res) => {
  req.header('User-Agent')
})
// Use the Request.header() method to access
//one individual request header’s value

Example 2: Make an HTTP server object active and listen to request on the certain posts:

Make an HTTP server object active and listen to request on the certain posts:

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Misc Example

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