feat: add /health endpoint

agent_api_rest/postman/ssi-agent.postman_collection.json

@@ -1,9 +1,9 @@
 {
 	"info": {
-		"_postman_id": "53b46e18-de7f-4973-8304-8238844a71ce",
+		"_postman_id": "91fc7356-1c5b-4b30-ac7b-e320477cfbbf",
 		"name": "ssi-agent",
 		"schema": "https://schema.getpostman.com/json/collection/v2.0.0/collection.json",
-		"_exporter_id": "24972330"
+		"_exporter_id": "30650915"
 	},
 	"item": [
 		{
@@ -190,8 +190,7 @@
 						"header": [
 							{
 								"key": "Authorization",
-								"value": "Bearer {{ACCESS_TOKEN}}",
-								"type": "text"
+								"value": "Bearer {{ACCESS_TOKEN}}"
 							}
 						],
 						"body": {
@@ -286,6 +285,20 @@
 					"response": []
 				}
 			]
+		},
+		{
+			"name": "metrics",
+			"item": [
+				{
+					"name": "health",
+					"request": {
+						"method": "GET",
+						"header": [],
+						"url": "http://{{HOST}}/health"
+					},
+					"response": []
+				}
+			]
 		}
 	],
 	"event": [

agent_api_rest/src/lib.rs

@@ -1,4 +1,5 @@
 mod issuance;
+mod metrics;
 mod verification;
 
 use agent_issuance::state::IssuanceState;
@@ -21,6 +22,7 @@ use issuance::credential_issuer::{
 };
 use issuance::credentials::{credentials, get_credentials};
 use issuance::offers::offers;
+use metrics::health;
 use tower_http::trace::TraceLayer;
 use tracing::{info_span, Span};
 use verification::{
@@ -66,6 +68,8 @@ pub fn app(state: ApplicationState) -> Router {
         // SIOPv2
         .route(&path("/request/:request_id"), get(request))
         .route(&path("/redirect"), post(redirect))
+        // Monitoring
+        .route(&path("/health"), get(health))
         // Trace layer
         .layer(
             TraceLayer::new_for_http()

agent_api_rest/src/metrics.rs

@@ -0,0 +1,9 @@
+use axum::Json;
+use serde_json::{json, Value};
+
+#[axum_macros::debug_handler]
+pub(crate) async fn health() -> Json<Value> {
+    Json(json!({
+        "status": "UP"
+    }))
+}