Include hyper-gateway version number in responses

[josephmturner]

This would allow us to ensure that we're using the latest version.

[RangerMauve]

Yeah, it'd be cool to return a JSON file on a GET to /. Maybe it could also give the info about the hypercore-fetch and hyper-sdk versions.

[josephmturner]

Yeah, it'd be cool to return a JSON file on a GET to /.

With a special GET request header, right? The behavior of GET on / is already defined: JSON array of top-level contents.

Alternatively, would it be too much overhead to send X-HYPER-GATEWAY-VERSION and X-HYPERCORE-FETCH-VERSION headers with every response?

[RangerMauve]

GET on / isn't the JSON array of files. That's a GET on /hyper/key/

So we should be able to put whatever we want in there.

[josephmturner]

My mistake. Okay - this sounds good to me!

[josephmturner]

Also, it appears that hyper-gateway --version returns "unknown". If you like, I can make a separate issue about this!

[RangerMauve]

Added in 3.3.0

[RangerMauve]

Try accessing http://localhost:4973/

[josephmturner]

Works great! We added a function in hyperdrive.el which uses this.