No simple way to wrap execution

[jamiehodge]

It appears as though the only way to wrap the execution promise for tracing/instrumentation is by misusing the extensions function. It would be very nice if one was able to define a wrapper function (that returned the same type), for tracing purposes.

i.e.

tracer: ({ query, variables, execution: Promise<...> }) => trace(query, execution...)

[IvanGoncharov]

@jamiehodge I'm currently working on #391 and plan to include it into next release.
Is it something similar to what you have in mind?

[jamiehodge]

@IvanGoncharov this looks very helpful. Thank you.