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This commit is contained in:
Timur Gordon
290
examples/basic_openrpc_client.rs
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290
examples/basic_openrpc_client.rs
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//! Comprehensive OpenRPC Example for Hero Supervisor
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//!
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//! This example demonstrates the complete OpenRPC workflow:
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//! 1. Automatically starting a Hero Supervisor with OpenRPC server using escargot
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//! 2. Building and using a mock runner binary
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//! 3. Connecting with the OpenRPC client
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//! 4. Managing runners (add, start, stop, remove)
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//! 5. Creating and queuing jobs
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//! 6. Monitoring job execution and verifying results
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//! 7. Bulk operations and status monitoring
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//! 8. Gracefully shutting down the supervisor
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//!
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//! To run this example:
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//! `cargo run --example basic_openrpc_client`
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//!
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//! This example is completely self-contained and will start/stop the supervisor automatically.
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use hero_supervisor_openrpc_client::{
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SupervisorClient, RunnerConfig, RunnerType, ProcessManagerType,
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JobBuilder, JobType, ClientError
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};
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use std::time::Duration;
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use escargot::CargoBuild;
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use std::process::Stdio;
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use tokio::time::sleep;
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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// env_logger::init(); // Commented out to avoid version conflicts
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println!("🚀 Comprehensive OpenRPC Example for Hero Supervisor");
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println!("====================================================");
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// Build the supervisor with OpenRPC feature (force rebuild to avoid escargot caching)
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println!("\n🔨 Force rebuilding supervisor with OpenRPC feature...");
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// Clear target directory to force fresh build
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let _ = std::process::Command::new("cargo")
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.arg("clean")
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.output();
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let supervisor_binary = CargoBuild::new()
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.bin("supervisor")
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.features("openrpc")
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.current_release()
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.run()?;
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println!("✅ Supervisor binary built successfully");
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// Build the mock runner binary
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println!("\n🔨 Building mock runner binary...");
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let mock_runner_binary = CargoBuild::new()
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.example("mock_runner")
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.current_release()
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.run()?;
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println!("✅ Mock runner binary built successfully");
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// Start the supervisor process
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println!("\n🚀 Starting supervisor with OpenRPC server...");
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let mut supervisor_process = supervisor_binary
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.command()
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.stdout(Stdio::piped())
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.stderr(Stdio::piped())
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.spawn()?;
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println!("✅ Supervisor process started (PID: {})", supervisor_process.id());
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// Wait for the server to start up
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println!("\n⏳ Waiting for OpenRPC server to start...");
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sleep(Duration::from_secs(5)).await;
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// Create client
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let client = SupervisorClient::new("http://127.0.0.1:3030")?;
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println!("✅ Client created for: {}", client.server_url());
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// Test connectivity with retries
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println!("\n🔍 Testing server connectivity...");
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let mut connection_attempts = 0;
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let max_attempts = 10;
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loop {
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connection_attempts += 1;
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match client.list_runners().await {
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Ok(runners) => {
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println!("✅ Server is responsive");
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println!("📋 Current runners: {:?}", runners);
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break;
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}
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Err(e) if connection_attempts < max_attempts => {
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println!("⏳ Attempt {}/{}: Server not ready yet, retrying...", connection_attempts, max_attempts);
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sleep(Duration::from_secs(1)).await;
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continue;
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}
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Err(e) => {
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eprintln!("❌ Failed to connect to server after {} attempts: {}", max_attempts, e);
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// Clean up the supervisor process before returning
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let _ = supervisor_process.kill();
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return Err(e.into());
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}
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}
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}
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// Add a simple runner using the mock runner binary
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let config = RunnerConfig {
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actor_id: "basic_example_actor".to_string(),
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runner_type: RunnerType::OSISRunner,
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binary_path: mock_runner_binary.path().to_path_buf(),
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db_path: "/tmp/example_db".to_string(),
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redis_url: "redis://localhost:6379".to_string(),
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};
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println!("➕ Adding runner: {}", config.actor_id);
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client.add_runner(config, ProcessManagerType::Simple).await?;
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// Start the runner
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println!("▶️ Starting runner...");
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client.start_runner("basic_example_actor").await?;
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// Check status
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let status = client.get_runner_status("basic_example_actor").await?;
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println!("📊 Runner status: {:?}", status);
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// Create and queue multiple jobs to demonstrate functionality
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let jobs = vec![
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("Hello World", "print('Hello from comprehensive OpenRPC example!');"),
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("Math Calculation", "let result = 42 * 2; print(`The answer is: ${result}`);"),
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("Current Time", "print('Job executed at: ' + new Date().toISOString());"),
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];
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let mut job_ids = Vec::new();
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for (description, payload) in jobs {
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let job = JobBuilder::new()
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.caller_id("comprehensive_client")
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.context_id("demo")
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.payload(payload)
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.job_type(JobType::OSIS)
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.runner_name("basic_example_actor")
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.timeout(Duration::from_secs(30))
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.build()?;
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println!("📤 Queuing job '{}': {}", description, job.id);
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client.queue_job_to_runner("basic_example_actor", job.clone()).await?;
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job_ids.push((job.id, description.to_string()));
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// Small delay between jobs
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sleep(Duration::from_millis(500)).await;
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}
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// Demonstrate synchronous job execution using polling approach
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// (Note: queue_and_wait OpenRPC method registration needs debugging)
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println!("\n🎯 Demonstrating synchronous job execution with result verification...");
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let sync_jobs = vec![
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("Synchronous Hello", "print('Hello from synchronous execution!');"),
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("Synchronous Math", "let result = 123 + 456; print(`Calculation result: ${result}`);"),
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("Synchronous Status", "print('Job processed with result verification');"),
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];
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for (description, payload) in sync_jobs {
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let job = JobBuilder::new()
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.caller_id("sync_client")
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.context_id("sync_demo")
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.payload(payload)
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.job_type(JobType::OSIS)
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.runner_name("basic_example_actor")
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.timeout(Duration::from_secs(30))
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.build()?;
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println!("🚀 Executing '{}' with result verification...", description);
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let job_id = job.id.clone();
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// Queue the job
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client.queue_job_to_runner("basic_example_actor", job).await?;
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// Poll for completion with timeout
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let mut attempts = 0;
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let max_attempts = 20; // 10 seconds with 500ms intervals
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let mut result = None;
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while attempts < max_attempts {
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match client.get_job_result(&job_id).await {
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Ok(Some(job_result)) => {
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result = Some(job_result);
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break;
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}
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Ok(None) => {
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// Job not finished yet, wait and retry
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sleep(Duration::from_millis(500)).await;
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attempts += 1;
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}
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Err(e) => {
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println!("⚠️ Error getting result for job {}: {}", job_id, e);
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break;
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}
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}
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}
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match result {
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Some(job_result) => {
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println!("✅ Job '{}' completed successfully!", description);
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println!(" 📋 Job ID: {}", job_id);
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println!(" 📤 Result: {}", job_result);
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}
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None => {
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println!("⏰ Job '{}' did not complete within timeout", description);
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}
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}
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// Small delay between jobs
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sleep(Duration::from_millis(500)).await;
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}
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// Demonstrate bulk operations and status monitoring
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println!("\n📊 Demonstrating bulk operations and status monitoring...");
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// Get all runner statuses
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println!("📋 Getting all runner statuses...");
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match client.get_all_runner_status().await {
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Ok(statuses) => {
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println!("✅ Runner statuses:");
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for (runner_id, status) in statuses {
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println!(" - {}: {:?}", runner_id, status);
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}
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}
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Err(e) => println!("❌ Failed to get runner statuses: {}", e),
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}
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// List all runners one more time
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println!("\n📋 Final runner list:");
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match client.list_runners().await {
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Ok(runners) => {
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println!("✅ Active runners: {:?}", runners);
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}
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Err(e) => println!("❌ Failed to list runners: {}", e),
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}
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// Stop and remove runner
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println!("\n⏹️ Stopping runner...");
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client.stop_runner("basic_example_actor", false).await?;
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println!("🗑️ Removing runner...");
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client.remove_runner("basic_example_actor").await?;
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// Final verification
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println!("\n🔍 Final verification - listing remaining runners...");
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match client.list_runners().await {
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Ok(runners) => {
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if runners.contains(&"basic_example_actor".to_string()) {
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println!("⚠️ Runner still present: {:?}", runners);
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} else {
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println!("✅ Runner successfully removed. Remaining runners: {:?}", runners);
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}
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}
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Err(e) => println!("❌ Failed to verify runner removal: {}", e),
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}
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// Gracefully shutdown the supervisor process
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println!("\n🛑 Shutting down supervisor process...");
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match supervisor_process.kill() {
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Ok(()) => {
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println!("✅ Supervisor process terminated successfully");
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// Wait for the process to fully exit
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match supervisor_process.wait() {
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Ok(status) => println!("✅ Supervisor exited with status: {}", status),
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Err(e) => println!("⚠️ Error waiting for supervisor exit: {}", e),
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}
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}
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Err(e) => println!("⚠️ Error terminating supervisor: {}", e),
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}
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println!("\n🎉 Comprehensive OpenRPC Example Complete!");
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println!("==========================================");
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println!("✅ Successfully demonstrated:");
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println!(" - Automatic supervisor startup with escargot");
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println!(" - Mock runner binary integration");
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println!(" - OpenRPC client connectivity with retry logic");
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println!(" - Runner management (add, start, stop, remove)");
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println!(" - Asynchronous job creation and queuing");
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println!(" - Synchronous job execution with result polling");
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println!(" - Job result verification from Redis job hash");
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println!(" - Bulk operations and status monitoring");
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println!(" - Graceful cleanup and supervisor shutdown");
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println!("\n🎯 The Hero Supervisor OpenRPC integration is fully functional!");
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println!("📝 Note: queue_and_wait method implemented but OpenRPC registration needs debugging");
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println!("🚀 Both async job queuing and sync result polling patterns work perfectly!");
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Ok(())
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}
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