fastify: the interface of the fastify shim seems incorrect

The interface of the fastify shim seems incorrect.

Without the new relic shim:

const fastify_1 = require('fastify');
console.log('index 2 >', fastify_1);
console.log('index 3 >', fastify_1.fastify);

Output:

index 2 > <ref *1> [Function: fastify] {
  fastify: [Circular *1],
  default: [Circular *1]
}

index 3 > <ref *1> [Function: fastify] {
  fastify: [Circular *1],
  default: [Circular *1]
}

With the newrelic fastify shim NEW_RELIC_FEATURE_FLAG_FASTIFY_INSTRUMENTATION=1

require('newrelic');
const fastify_1 = require('fastify');
console.log('index 3 >', fastify_1);
console.log('index 4 >', fastify_1.fastify);

Output:

index 3 > [Function: wrappedFastifyModule] { __NR_instrumented: true }
index 4 > undefined

This then leads to breaking anything else that may be expecting the .fastify on the module returned from require.

package_json_and_index_js.zip

[meeech]

@michaelgoin thanks! yeah, i kept reloading the npm info page to see when it was published. Its installed, working ok so far. Just have the ui bug (#757), but can live with that since its just cosmetic. I appreciate the quick turnaround.

thanks 👍🏼

[meeech]

@michaelgoin For me, would be nice to have the quick fix in NR for now, so I can move forward with our instrumentation. would be prefered, since a manual workaround would be tricky. (i was able to do it just to verify the issue)