FauxRPC using gRPCurl, Golang and rust

Read FauxRPC + Testcontainers on Hacker News and was intrigued. I spent a little more time “evaluating” this than I’d planned because I’m forcing myself to use rust as much as possible and my ignorance (see below) caused me some challenges.

The technology is interesting and works well. The experience helped me explore Testcontainers too which I’d heard about but not explored until this week.

For my future self:

What	What?
FauxRPC	A general-purpose tool (built using Buf’s Connect) that includes registry and stub (gRPC) services that can be (programmatically) configured (using a Protobuf descriptor) and stubs (example method responses) to help test gRPC implementations.
Testcontainers	Write code (e.g. rust) to create and interact (test)services (running in [Docker] containers).
Connect	(More than a) gRPC implementation used by FauxRPC
gRPCurl	A command-line gRPC tool.

I started following along with FauxRPC’s Testcontainers example but, being unfamiliar with Connect, I wasn’t familiar with its Eliza service. The service is available on demo.connectrpc.com:443 and is described using eliza.proto as part of examples-go. Had I realized this sooner, I would have used this example rather than the Health Checking protocol.