cano 0.8.0

High-performance orchestration engine for building resilient, self-healing systems in Rust. Uses Finite State Machines (FSM) for strict, type-safe transitions.
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    <title>Cano - Async Data & AI Workflows in Rust</title>
    <meta name="description" content="Cano is a high-performance async workflow orchestration engine for Rust using Finite State Machines for type-safe processing pipelines.">
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    <meta property="og:description" content="Type-safe async workflow engine with built-in scheduling, retry logic, and state machine semantics.">
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            Cano
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            <span class="version-badge">v0.8.0</span>
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        <section class="hero">
            <h1 class="animate-in">Cano</h1>
            <p class="subtitle animate-in">Type-safe async workflow engine with built-in scheduling, retry logic, and state machine semantics.</p>

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                <a href="https://crates.io/crates/cano" title="Crates.io">
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            <p class="animate-in">
                Cano is a high-performance orchestration engine designed for building resilient, self-healing systems in Rust.
                Unlike simple task queues, Cano uses <strong>Finite State Machines (FSM)</strong> to define strict, type-safe transitions between processing steps.
            </p>

            <p class="animate-in">
                It excels at managing complex lifecycles where state transitions matter:
            </p>
            <ul class="animate-in">
                <li><strong>Data Pipelines</strong>: ETL jobs with parallel processing (Split/Join) and aggregation.</li>
                <li><strong>AI Agents</strong>: Multi-step inference chains with shared context and memory.</li>
                <li><strong>Background Systems</strong>: Scheduled maintenance, periodic reporting, and distributed cron jobs.</li>
            </ul>
        </section>

        <h2>Features</h2>
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                <h3>Tasks & Nodes</h3>
                <p>Single <code>Task</code> trait for simple logic, or <code>Node</code> trait for structured three-phase lifecycle.</p>
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            <div class="feature-card animate-in">
                <div class="feature-icon secondary" aria-hidden="true">&#9670;</div>
                <h3>State Machines</h3>
                <p>Type-safe enum-driven state transitions with compile-time checking.</p>
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                <h3>Retry Strategies</h3>
                <p>Fixed delays, exponential backoff with jitter, and custom strategies.</p>
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                <h3>Scheduling</h3>
                <p>Built-in scheduler with intervals, cron schedules, and manual triggers.</p>
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                <h3>Concurrency</h3>
                <p>Execute multiple workflow instances in parallel with timeout strategies.</p>
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                <h3>Observability</h3>
                <p>Comprehensive tracing and observability for workflow execution.</p>
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        </div>

        <h2>Getting Started</h2>
        <p>Add Cano to your <code>Cargo.toml</code>:</p>

        <div class="getting-started-code">
            <pre><code class="language-toml">[dependencies]
cano = { version = "0.8", features = ["all"] }
tokio = { version = "1", features = ["full"] }</code></pre>
        </div>

        <h3>Basic Example</h3>
        <div class="getting-started-code">
            <pre><code class="language-rust">use async_trait::async_trait;
use cano::prelude::*;

// Define your workflow states
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
enum WorkflowState {
    Start,
    Process,
    Complete,
}

// Simple Task implementation
#[derive(Clone)]
struct SimpleTask;

#[async_trait]
impl Task<WorkflowState> for SimpleTask {
    async fn run(&self, store: &MemoryStore) -> Result<TaskResult<WorkflowState>, CanoError> {
        println!("Processing task...");
        // Return the next state wrapped in TaskResult
        Ok(TaskResult::Single(WorkflowState::Process))
    }
}

#[tokio::main]
async fn main() -> Result<(), CanoError> {
    let store = MemoryStore::new();

    // Create workflow with initial store
    let workflow = Workflow::new(store.clone())
        .register(WorkflowState::Start, SimpleTask)
        .register(WorkflowState::Process, |_: &MemoryStore| async {
            println!("Done!");
            Ok(TaskResult::Single(WorkflowState::Complete))
        })
        .add_exit_state(WorkflowState::Complete);

    // Run workflow starting at 'Start' state
    workflow.orchestrate(WorkflowState::Start).await?;

    Ok(())
}</code></pre>
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