1st commit

examples/smartsend_example.rs

@@ -0,0 +1,70 @@
+use msghandler::{smartsend, Payload, SmartsendOptions};
+
+#[tokio::main]
+async fn main() {
+    // Create mixed payload data
+    let payloads = vec![
+        (
+            "message".to_string(),
+            Payload::Text("Hello from Rust!".to_string()),
+            "text".to_string(),
+        ),
+        (
+            "user_data".to_string(),
+            Payload::Dictionary(serde_json::json!({
+                "name": "Alice",
+                "role": "admin",
+                "scores": [95, 88, 92]
+            })),
+            "dictionary".to_string(),
+        ),
+        (
+            "avatar".to_string(),
+            Payload::Binary(vec![0x89, 0x50, 0x4E, 0x47]), // PNG header
+            "image".to_string(),
+        ),
+    ];
+
+    let options = SmartsendOptions {
+        broker_url: "nats://localhost:4222".to_string(),
+        fileserver_url: "http://localhost:8080".to_string(),
+        msg_purpose: "chat".to_string(),
+        sender_name: "rust-example".to_string(),
+        ..Default::default()
+    };
+
+    match smartsend("/agent/wine/api/v1/prompt", &payloads, &options).await {
+        Ok((envelope, json_str)) => {
+            println!("=== Envelope Created ===");
+            println!("Correlation ID: {}", envelope.correlation_id);
+            println!("Message ID: {}", envelope.msg_id);
+            println!("Timestamp: {}", envelope.timestamp);
+            println!("Subject: {}", envelope.send_to);
+            println!("Purpose: {}", envelope.msg_purpose);
+            println!("Sender: {}", envelope.sender_name);
+            println!("Payloads: {}", envelope.payloads.len());
+            println!();
+
+            for payload in &envelope.payloads {
+                println!("Payload: {} (type: {}, transport: {}, encoding: {})",
+                    payload.dataname,
+                    payload.payload_type,
+                    payload.transport,
+                    payload.encoding);
+                println!("  Size: {} bytes", payload.size);
+                println!("  Data: {}", if payload.transport == "direct" {
+                    &payload.data[..payload.data.len().min(40)]
+                } else {
+                    &payload.data[..payload.data.len().min(60)]
+                });
+            }
+
+            println!();
+            println!("=== JSON String for NATS Publishing ===");
+            println!("{}", json_str);
+        }
+        Err(e) => {
+            eprintln!("Error: {}", e);
+        }
+    }
+}