[bjacokes]

Our integrations are primarily written in Node, which was the original language used for everything at Plaid. Almost all of those original services (except for integrations) have been migrated to Go or Python at this point. We've standardized on gRPC as our wire format, so we stayed consistent and used gRPC in Node.

With perfect hindsight, it's a fair point that all the pros and cons could net out to another language being best for our integrations. Integrations are the largest and most quickly-changing codebase at Plaid, so such a migration would be a massive undertaking. We definitely didn't want to block scalability improvements on doing a language migration.

[mnutt]

I've been hoping that the Cloudflare folks will open source parts of their Workers; they seem to have figured out a secure, performant way to run untrusted javascript at scale.