- add: service discovery protocol using consul

auth-service/src/consul_registration.rs

@@ -0,0 +1,59 @@
+use reqwest::Client;
+use serde::Serialize;
+
+#[derive(Serialize)]
+struct ConsulRegistration {
+    name: String,
+    address: String,
+    port: u16,
+    check: ConsulCheck,
+}
+
+#[derive(Serialize)]
+struct ConsulCheck {
+    http: String,
+    interval: String,
+}
+
+pub async fn register_service(
+    consul_url: &str,
+    service_name: &str,
+    service_address: &str,
+    service_port: u16,
+    health_check_url: &str,
+) -> Result<(), Box<dyn std::error::Error>> {
+    let registration = ConsulRegistration {
+        name: service_name.to_string(),
+        address: service_address.to_string(),
+        port: service_port,
+        check: ConsulCheck {
+            http: health_check_url.to_string(),
+            interval: "10s".to_string(), // Health check interval
+        },
+    };
+
+    let client = Client::new();
+    let consul_register_url = format!("{}/v1/agent/service/register", consul_url);
+
+    client
+        .put(&consul_register_url)
+        .json(&registration)
+        .send()
+        .await?
+        .error_for_status()?; // Ensure response is successful
+
+    Ok(())
+}
+
+pub async fn deregister_service(consul_url: &str, service_name: &str) -> Result<(), Box<dyn std::error::Error>> {
+    let client = Client::new();
+    let consul_deregister_url = format!("{}/v1/agent/service/deregister/{}", consul_url, service_name);
+
+    client
+        .put(&consul_deregister_url)
+        .send()
+        .await?
+        .error_for_status()?; // Ensure response is successful
+
+    Ok(())
+}