ColonyOS Rust SDK

Rust SDK for ColonyOS - build distributed applications with executors that can run anywhere.

Features

• Pure Rust implementation (no C dependencies)
• Async/await support with Tokio
• secp256k1 ECDSA cryptography with SHA3-256 hashing
• Full ColonyOS API support
• WebAssembly (WASM) support for browser-based executors

Installation

Add this to your Cargo.toml:

[dependencies]
colonyos = "1.0"
tokio = { version = "1", features = ["full"] }

WASM Support

For WebAssembly targets, use the wasm feature:

[dependencies]
colonyos = { version = "1.0", default-features = false, features = ["wasm"] }
wasm-bindgen = "0.2.88"
wasm-bindgen-futures = "0.4.38"

Quick Start

Building an Executor

An executor is a worker that pulls and executes processes from a ColonyOS server:

use colonyos::core::{Attribute, Executor, FunctionSpec, WAITING};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let colonyname = "dev";
    let prvkey = "ddf7f7791208083b6a9ed975a72684f6406a269cfa36f1b1c32045c0a71fff05";

    // Create and register executor
    let executor_id = colonyos::crypto::gen_id(prvkey);
    let executor = Executor::new("rust-executor", &executor_id, "cli", colonyname);
    colonyos::add_executor(&executor, prvkey).await?;

    println!("Executor registered, waiting for processes...");

    loop {
        // Wait for a process (10 second timeout)
        match colonyos::assign(colonyname, 10, prvkey).await {
            Ok(process) => {
                println!("Assigned process: {}", process.processid);

                match process.spec.funcname.as_str() {
                    "echo" => {
                        // Echo back the first argument
                        let output = process.spec.args.get(0)
                            .map(|s| s.clone())
                            .unwrap_or_default();
                        colonyos::set_output(&process.processid, vec![output], prvkey).await?;
                        colonyos::close(&process.processid, prvkey).await?;
                        println!("Process completed successfully");
                    }
                    _ => {
                        colonyos::fail(&process.processid, prvkey).await?;
                        println!("Unknown function: {}", process.spec.funcname);
                    }
                }
            }
            Err(e) => {
                // Timeout or connection error - continue polling
                if !e.conn_err() {
                    continue;
                }
                eprintln!("Connection error: {}", e);
                tokio::time::sleep(tokio::time::Duration::from_secs(1)).await;
            }
        }
    }
}

Submitting a Process

use colonyos::core::FunctionSpec;

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let prvkey = "ddf7f7791208083b6a9ed975a72684f6406a269cfa36f1b1c32045c0a71fff05";

    // Create and submit a function spec
    let mut spec = FunctionSpec::new("echo", "cli", "dev");
    spec.args = vec!["Hello from Rust!".to_string()];
    spec.maxexectime = 60;
    spec.maxretries = 3;

    let process = colonyos::submit(&spec, prvkey).await?;
    println!("Submitted process: {}", process.processid);

    // Wait for completion
    loop {
        let p = colonyos::get_process(&process.processid, prvkey).await?;
        match p.state {
            colonyos::core::SUCCESS => {
                println!("Output: {:?}", p.output);
                break;
            }
            colonyos::core::FAILED => {
                println!("Process failed");
                break;
            }
            _ => {
                tokio::time::sleep(tokio::time::Duration::from_millis(100)).await;
            }
        }
    }

    Ok(())
}

API Overview

See docs/API.md for the complete API reference.

Colony Management

• add_colony, remove_colony, get_colony, get_colonies

Executor Management

• add_executor, approve_executor, reject_executor, remove_executor
• get_executor, get_executors

Process Lifecycle

• submit - Submit a new process
• assign - Wait for and assign a process to execute
• close - Mark process as successful
• fail - Mark process as failed
• get_process, get_processes, remove_process, remove_all_processes
• set_output - Set process output

Workflows

• submit_workflow, get_processgraph, get_processgraphs
• remove_processgraph, remove_all_processgraphs

Logging

• add_log, get_logs

Channels

• channel_append, channel_read

Subscriptions (WebSocket)

• subscribe_process - Wait for process state changes
• subscribe_channel - Real-time channel message streaming

Statistics

• get_statistics

Function Registry

• add_function, get_functions, get_functions_by_executor, remove_function

Blueprints

• add_blueprint_definition, get_blueprint_definition, get_blueprint_definitions, remove_blueprint_definition
• add_blueprint, get_blueprint, get_blueprints, update_blueprint, remove_blueprint
• update_blueprint_status, reconcile_blueprint

Cryptography

The SDK uses pure Rust cryptography:

use colonyos::crypto;

// Generate a new private key
let prvkey = crypto::gen_prvkey();

// Derive the public ID from a private key
let id = crypto::gen_id(&prvkey);

// Sign a message
let signature = crypto::gen_signature("message", &prvkey);

// Verify signature and recover ID
let recovered_id = crypto::recid("message", &signature);
assert_eq!(id, recovered_id);

// Hash a message with SHA3-256
let hash = crypto::gen_hash("message");

Running Tests

Start a Colonies server

cd /path/to/colonies
source docker-compose.env
docker-compose up -d

Run tests

# Run all tests
cargo test

# Run only unit tests
cargo test --lib

# Run integration tests (requires running server)
cargo test --test integration_test

Examples

See the examples directory:

• examples/simple_executor.rs - Basic executor implementation
• examples/submit_process.rs - Submit and monitor a process
• examples/workflow.rs - Submit a workflow with dependencies
• examples/wasm/ - WASM executor that runs in the browser

Tutorials

• Getting Started - Step-by-step guide to building your first executor
• WASM Executor - Building a browser-based executor with WebAssembly

License

MIT