Signature for handler function, response chaining

[radu-matei]

A usual pattern when writing HTTP handlers in JavaScript is having a function that takes both the request and response, and constructing the response using a builder-like pattern, by chaining the desired status, headers, or body.

An example using Express:

app.get('/', (req, res) => {
    res.status(500).send('Something broke!')
})

This is similar to how other JS frameworks construct HTTP handlers — is this something we'd consider implementing into this SDK?

It is a departure from other Spin SDKs and from the current implementation of this SDK, which takes in the request as a parameter, and returns the response as the result.

[karthik2804]

Initial prototype in #115