Help getting spark-connect-rs running locally

[MrPowers]

Commands I ran (I am a total n00b):

• install rust via rustup
• Created a new crate: cargo new spark-connect-gist
• edited Cargo.toml to include spark connect rs and tokio dependencies:

[dependencies]
spark-connect-rs = "0.0.1-beta.3"
tokio = { version = "1", features = ["full"] }

• Install cmake: arch -arm64 brew install cmake
• Install protobuf: brew install protobuf
• Copy the example gist in main.rs: https://gist.github.com/sjrusso8/2b4e43af462367a15f91db5a33627449
• Run cargo run

Here is the error message:

   Compiling spark-connect-gist v0.1.0 (/Users/matthew.powers/Documents/code/my_apps/spark-connect-gist)
    Finished dev [unoptimized + debuginfo] target(s) in 1.00s
     Running `target/debug/spark-connect-gist`
Error: tonic::transport::Error(Transport, hyper::Error(Connect, ConnectError("tcp connect error", Os { code: 61, kind: ConnectionRefused, message: "Connection refused" })))

[MrPowers]

Whoops, this is actually working, I forgot to start the Spark Connect session with the command: ./sbin/start-connect-server.sh --packages org.apache.spark:spark-connect_2.12:3.5.1

Are you OK if I add these setup instructions to the README?

[sjrusso8]

So I just ran through the steps on a fresh ubuntu image, and here is what I had to do.

• Install rust via rustup
• Install build-essential & protoc with apt install -y build-essential protobuf-compiler
• Install cmake
• Run cargo new spark-connect-starter && cd spark-connect-starter to create a new project and go to the directory
• Add dependencies to your Cargo.toml file

spark-connect-rs = "0.0.1-beta.3"
tokio = "1.37.0"

• Copy example into main.rs and run cargo run

Ensure spark connect is up and running.

---

I'll update the top level readme with the example from the gist. The current one leverages a file path that might not exist for all users depending on how they are running their spark cluster.

[sjrusso8]

I see you also updated the spark-connect-go readme. I'll mirror that style