From d196ae7868da64c34b2c83363d69203a333cbd70 Mon Sep 17 00:00:00 2001
From: Hongwei <hongwei@tesobe.com>
Date: Mon, 4 Dec 2023 14:00:52 +0100
Subject: [PATCH] feature/added the lastEndpoint info on metric page

---
 .../static/metrics/js/lastEndpointMetric.js   | 17 +++++++++++++++++
 apimanager/metrics/templates/metrics/api.html |  6 ++++--
 apimanager/metrics/urls.py                    |  6 +++++-
 apimanager/metrics/views.py                   | 19 +++++++++++++++++++
 4 files changed, 45 insertions(+), 3 deletions(-)
 create mode 100644 apimanager/metrics/static/metrics/js/lastEndpointMetric.js

diff --git a/apimanager/metrics/static/metrics/js/lastEndpointMetric.js b/apimanager/metrics/static/metrics/js/lastEndpointMetric.js
new file mode 100644
index 00000000..e22ceaac
--- /dev/null
+++ b/apimanager/metrics/static/metrics/js/lastEndpointMetric.js
@@ -0,0 +1,17 @@
+$(document).ready(function($) {
+	getMetricLastEndpoint();
+});
+
+function getMetricLastEndpoint(){
+	$.ajax({url: "/metrics/api/last-endpoint", success: function(result){
+			var content = "Last call: "
+				+result['app_name']+" "
+				+result['verb']+" "
+				+ result['implemented_by_partial_function']
+				+" costed "
+				+result['duration']
+				+" ms.";
+			$("#last_endpoint").text(content);
+			setTimeout(function(){getMetricLastEndpoint();}, 5000); // will call function to update time every 5 seconds
+		}});
+}
diff --git a/apimanager/metrics/templates/metrics/api.html b/apimanager/metrics/templates/metrics/api.html
index 24d13c52..e8b174c1 100644
--- a/apimanager/metrics/templates/metrics/api.html
+++ b/apimanager/metrics/templates/metrics/api.html
@@ -3,7 +3,9 @@
 {% load i18n %}
 
 {% block page_title %}{{ block.super }} / API Metrics{% endblock page_title %}
-
+{% block extrajs %}
+    <script type="text/javascript" src="{% static 'metrics/js/lastEndpointMetric.js' %}"></script>
+{% endblock extrajs %}
 {% load bootstrap3 %}
 {% block content %}
 <div id="metrics">
@@ -12,7 +14,7 @@
 	{{ form.media }}            {# Form required JS and CSS #}
 	{% endblock %}
 	<h1>{% trans "API Metrics" %}</h1>
-
+    <h5 id ="last_endpoint">Last call: API Manager getMetrics costed 294 ms</h5>
     <div id="metrics-filter">
     	<h2>{% trans "Filter" %}</h2>
     	<form action="" method="get">
diff --git a/apimanager/metrics/urls.py b/apimanager/metrics/urls.py
index 3803ef73..d94d6b8b 100644
--- a/apimanager/metrics/urls.py
+++ b/apimanager/metrics/urls.py
@@ -15,13 +15,17 @@
     WeeklySummaryView,
     DailySummaryView,
     HourlySummaryView,
-    CustomSummaryView
+    CustomSummaryView,
+    get_metric_last_endpoint
 )
 
 urlpatterns = [
     url(r'^api/$',
         APIMetricsView.as_view(),
         name='api-metrics'),
+    url(r'^api/last-endpoint/$',
+        get_metric_last_endpoint,
+        name='api-metrics-last-endpoint'),
     url(r'^api/summary-partial-function$',
         APISummaryPartialFunctionView.as_view(),
         name='api-metrics-summary-partial-function'),
diff --git a/apimanager/metrics/views.py b/apimanager/metrics/views.py
index 587e3b14..a40c33d0 100644
--- a/apimanager/metrics/views.py
+++ b/apimanager/metrics/views.py
@@ -10,6 +10,7 @@
 from enum import Enum
 
 from django.conf import settings
+from django.http import JsonResponse
 from apimanager import local_settings
 from apimanager.settings import API_HOST, EXCLUDE_APPS, EXCLUDE_FUNCTIONS, EXCLUDE_URL_PATTERN, API_EXPLORER_APP_NAME, API_DATE_FORMAT_WITH_MILLISECONDS, API_DATE_FORMAT_WITH_SECONDS , DEBUG
 from django.contrib import messages
@@ -201,6 +202,24 @@ def get_context_data(self, **kwargs):
         })
         return context
 
+def get_metric_last_endpoint(request):
+    urlpath = "/management/metrics?limit=1"
+    api = API(request.session.get('obp'))
+    last_endpoint_metric={}
+    try:
+        metric = api.get(urlpath)['metrics'][0]
+        last_endpoint_metric={
+            'app_name':metric['app_name'],
+            'verb': metric['verb'], 
+            'implemented_by_partial_function': metric['implemented_by_partial_function'], 
+            'duration': metric['duration']
+        }
+    except Exception as err:
+        LOGGER.exception('error_once_only - Error Message: {}'.format(err))
+    
+    return JsonResponse(last_endpoint_metric)
+
+
 
 class APISummaryPartialFunctionView(APIMetricsView):
     template_name = 'metrics/api_summary_partial_function.html'