Performance script for Open Payments

[mkurapov]

Right now, we have a performance script (test/performance/scripts/create-outgoing-payments.js) to do load testing for our Admin APIs, which calls createReceiver createQuote and createOutgoingPayment.

We should add a similar script, but one that uses Open Payments APIs instead. The script will (create incoming payment, create quote, and create outgoing payment), after getting grants for the corresponding resources, and accepting an interactive grant at the MASE to be able to create outgoing payment. We can use a single grant for the outgoing payment.

Keep in mind, if the script is running longer than 10 min, we will need to refresh tokens used for the grant.

We can use the Open Payments client to help orchestrate this. This will require us to bundle the package, similar to how we are doing for json-canonicalize.

[BlairCurrey]

The script will (create incoming payment, create quote, and create outgoing payment), after getting grants for the corresponding resources, and accepting an interactive grant at the MASE to be able to create outgoing payment. We can use a single grant for the outgoing payment.

I guess doing this manually via the UI could work when running locally, but it poses a problem for CI. We talked about using this for the CI performance test instead of the admin api based flow since it's the more complete one.

Maybe we can handle this from the test itself, similar to how we do it in the integration tests? https://github.com/interledger/rafiki/blob/main/test/integration/lib/test-actions/index.ts#L44-L69