Pass ctx instead of ctx.request to koa options function

[HriBB]

This is a breaking change. We need to mention this in the changelog.

TODO:

• Update CHANGELOG.md with your change (include reference to issue & this PR)
• Make sure all of the significant new logic is covered by tests
• Rebase your changes on master so that they can be merged easily
• Make sure all tests and linter rules pass

[helfer]

@HriBB can you add that to the changelog? I think it's a good change, but it's a pretty major breaking change for the Koa integration.

[HriBB]

Done!

[mikeifomin]

@HriBB
I think you forgot to fix an interface for KoaApolloOptionsFunction

[HriBB]

@mikeifomin you're right, thanks! @helfer should I add a test for that?

[helfer]

@HriBB I don't even know how we could test for missing (type) exports. If you figure out a way to do that, I definitely want to know!

[HriBB]

Should be fixed now, @mikeifomin can you check? @helfer yeah I'm not very experienced with tests. I proposed that because I ran tests after fixing the ctx and all tests passed, so I assumed my change was OK.

[helfer]

@HriBB @mikeifomin is this ready to merge?

[HriBB]

@helfer yes!

[stubailo]

So how do we release this? Bump to v0.4?

[helfer]

@stubailo yeah, we could release this before the monorepo, which would then be version 0.5

[stubailo]

OK, will do.