From a1d74b5e210623114f84cf805224d90b21f36b99 Mon Sep 17 00:00:00 2001
From: Raphael Koh <72152843+kohrapha@users.noreply.github.com>
Date: Fri, 4 Dec 2020 14:43:44 -0500
Subject: [PATCH] Expose transactions per minute via mocked server endpoint
 (#174)

---
 mocked_server/index.js | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/mocked_server/index.js b/mocked_server/index.js
index 3be2379ce..ad1f4a191 100644
--- a/mocked_server/index.js
+++ b/mocked_server/index.js
@@ -6,14 +6,25 @@ const http = require('http');
 const fs = require('fs');
 const app = express();
 
-var get_data = ""
+let data = "";
+let numTransactions = 0;
+const startTime = new Date();
 
-app.get("/check-data", function(req, res){
-    res.send(get_data);
+// Retrieve number of transactions per minute
+app.get("/tpm", function (req, res) {
+    // Calculate duration in minutes
+    const duration = Math.ceil((new Date() - startTime) / 60000);
+    const tpm = numTransactions / duration;
+    res.send({ tpm });
+});
+
+app.get("/check-data", function (req, res) {
+    res.send(data);
 });
 
 app.all('/put-data*', function (req, res) {
-    get_data = "success";
+    data = "success";
+    numTransactions++;
     res.send('{}');
 });