Adds a user agent to the metaphysics fetch

[orta]

This at least handles the reaction side of artsy/force#2191

Happy to change what the text actually is, but at least it's there.

[alloy]

Doesn’t matter much right now, but at some point Reaction will probably be used in other apps, so maybe the user-agent should also hint at what the host app is? I'm fine with merging now as-is, though.

[kanaabe]

It already is in Positron 😄

[joeyAghion]

Yeah same thought... it would be nice if this was a default/fall-back and including systems could override it with their own agent identifiers. But this is much better than nothing!

[orta]

If someone can show me an example of how we integrate in force/positron - I can see if we can have a config obj which can be include a user agent

[alloy]

@kanaabe My bad, thanks for rectifying! 🙏

[alloy]

One very explicit option, albeit somewhat repetitive, is to add a prop to the Artsy component for when no environment prop is specified

reaction/src/Components/Artsy.tsx

Line 76 in 11bbc2b

this.relayEnvironment = props.relayEnvironment || createEnvironment(this.currentUser)

<ContextProvider userAgent="Force" {...}>
  <SweetTree />
</ContextProvider>

[joeyAghion]

Gonna merge this since it seems like an improvement on its own. Feel free to follow up with the configurability or not.

[orta]

Agree, going to take a quick look at configurability now 👍