How to use getFeedSkeleton and getFeed API

[leachuk]

I'd like to build out my own feed client for testing of my own feed generator.

I have the custom feed generator available on my local network and can access is fine with

const agent = new AtpAgent({
  service: "http://192.168.0.94:30100"
});

feedRes = await agent.app.bsky.feed.getFeed({
  feed: "at://did:plc:l4h6ktmviiwqdmldqrss64zw/app.bsky.feed.generator/whats-alf"
});

But when I try and hit that endpoint outside of the JS client, e.g. in the browser or curl, I get an error

curl -G GET 'http://192.168.0.94:30100/xrpc/app.bsky.feed.getFeed' \
  -d 'feed=at://did:plc:l4h6ktmviiwqdmldqrss64zw/app.bsky.feed.generator/whats-alf' \
  -d 'limit=5'

# Results in curl: (6) Could not resolve host: GET

However, I can change the curl command to use getFeedSkeleton and it works as expected

curl -G GET 'http://192.168.0.94:30100/xrpc/app.bsky.feed.getFeedSkeleton' \
  -d 'feed=at://did:plc:l4h6ktmviiwqdmldqrss64zw/app.bsky.feed.generator/whats-alf' \
  -d 'limit=5'

And this may or may not be related, but I don't appear to be able to getFeedSkeleton for any feed via a remote (none localhost, which does work) host. So this doesn't work (I've tried multiple hostnames)

curl -X GET https://api.bsky.app/xrpc/app.bsky.feed.getFeedSkeleton \
  -H "Authorization: Bearer TOKEN_HERE" \
  -H "Content-Type: application/json" \
  -d '{
    "feed": "at://did:plc:z72i7hdynmk6r22z27h6tvur/app.bsky.feed.generator/whats-hot",
    "limit": 20
  }'

It would be nice to understand why I'm seeing this behaviour.