# Supervisor Examples - Summary

## ✅ **Complete End-to-End Examples with OpenRPC Client**

All examples now use the official `hero-supervisor-openrpc-client` library for type-safe, async communication with the supervisor.

### **What Was Updated:**

1. **OpenRPC Client Library** (`clients/openrpc/src/lib.rs`)
   - Added `JobRunResponse` - Response from blocking `job.run`
   - Added `JobStartResponse` - Response from non-blocking `job.start`
   - Updated `job_run()` method - Now accepts timeout parameter
   - Updated `job_start()` method - Now accepts Job instead of job_id
   - Re-exports `Job` and `JobBuilder` from `runner_rust`

2. **Simple E2E Example** (`examples/simple_e2e.rs`)
   - Uses `SupervisorClient` from OpenRPC library
   - Clean, type-safe API calls
   - No manual JSON-RPC construction
   - Perfect for learning and testing

3. **Full E2E Demo** (`examples/end_to_end_demo.rs`)
   - Automated supervisor and runner spawning
   - Uses OpenRPC client throughout
   - Helper functions for common operations
   - Comprehensive test scenarios

### **Key Changes:**

**Before (Manual JSON-RPC):**
```rust
let request = json!({
    "jsonrpc": "2.0",
    "method": "job.run",
    "params": [{
        "secret": secret,
        "job": job,
        "timeout": 30
    }],
    "id": 1
});
let response = http_client.post(url).json(&request).send().await?;
```

**After (OpenRPC Client):**
```rust
let response = client.job_run(secret, job, Some(30)).await?;
println!("Result: {:?}", response.result);
```

### **Client API:**

#### **Job Execution**

```rust
use hero_supervisor_openrpc_client::{SupervisorClient, JobBuilder};

// Create client
let client = SupervisorClient::new("http://localhost:3030")?;

// Register runner
client.register_runner("admin_secret", "runner_name", "queue_name").await?;

// Run job (blocking - waits for result)
let response = client.job_run("admin_secret", job, Some(60)).await?;
// response.result contains the actual result

// Start job (non-blocking - returns immediately)
let response = client.job_start("admin_secret", job).await?;
// response.job_id for later polling
```

#### **Response Types**

```rust
// JobRunResponse (from job.run)
pub struct JobRunResponse {
    pub job_id: String,
    pub status: String,      // "completed"
    pub result: Option<String>,  // Actual result from runner
}

// JobStartResponse (from job.start)
pub struct JobStartResponse {
    pub job_id: String,
    pub status: String,      // "queued"
}
```

### **Examples Overview:**

| Example | Description | Use Case |
|---------|-------------|----------|
| `simple_e2e.rs` | Manual setup, step-by-step | Learning, testing |
| `end_to_end_demo.rs` | Automated, comprehensive | CI/CD, integration tests |

### **Running the Examples:**

**Prerequisites:**
```bash
# Terminal 1: Redis
redis-server

# Terminal 2: Supervisor
cargo run --bin hero-supervisor -- --redis-url redis://localhost:6379

# Terminal 3: Runner
cargo run --bin runner_osis -- test_runner --redis-url redis://localhost:6379
```

**Run Simple Example:**
```bash
# Terminal 4
RUST_LOG=info cargo run --example simple_e2e
```

**Run Full Demo:**
```bash
# Only needs Redis running (spawns supervisor and runner automatically)
RUST_LOG=info cargo run --example end_to_end_demo
```

### **Benefits of OpenRPC Client:**

✅ **Type Safety** - Compile-time checking of requests/responses
✅ **Async/Await** - Native Rust async support
✅ **Error Handling** - Proper Result types with detailed errors
✅ **Auto Serialization** - No manual JSON construction
✅ **Documentation** - IntelliSense and type hints
✅ **Maintainability** - Single source of truth for API

### **Architecture:**

```
┌─────────────────┐
│   Example Code  │
│  (simple_e2e)   │
└────────┬────────┘
         │
         ▼
┌─────────────────┐
│  OpenRPC Client │
│  (typed API)    │
└────────┬────────┘
         │ JSON-RPC over HTTP
         ▼
┌─────────────────┐
│   Supervisor    │
│   (Mycelium)    │
└────────┬────────┘
         │ Redis Queue
         ▼
┌─────────────────┐
│  OSIS Runner    │
│  (Rhai Engine)  │
└─────────────────┘
```

### **Job Execution Modes:**

**Blocking (`job.run`):**
- Client waits for result
- Uses `queue_and_wait` internally
- Returns actual result
- Best for: CRUD, queries, short jobs

**Non-Blocking (`job.start`):**
- Client returns immediately
- Job runs in background
- Returns job_id for polling
- Best for: Long jobs, batch processing

### **Files Modified:**

- ✅ `clients/openrpc/src/lib.rs` - Updated client methods and response types
- ✅ `examples/simple_e2e.rs` - Refactored to use OpenRPC client
- ✅ `examples/end_to_end_demo.rs` - Refactored to use OpenRPC client
- ✅ `examples/E2E_EXAMPLES.md` - Updated documentation
- ✅ `examples/EXAMPLES_SUMMARY.md` - This file

### **Next Steps:**

1. **Add more examples** - Specific use cases (batch jobs, error handling)
2. **Job polling** - Implement `wait_for_job()` helper
3. **WASM support** - Browser-based examples
4. **Signature examples** - Jobs with cryptographic signatures

---

**Status:** ✅ Complete and Production Ready
**Last Updated:** 2025-10-24
**Client Version:** hero-supervisor-openrpc-client 0.1.0