diff --git a/express/asset/frontend.min.js b/express/asset/frontend.min.js
new file mode 100644
index 0000000..25bc7ef
--- /dev/null
+++ b/express/asset/frontend.min.js
@@ -0,0 +1 @@
+let sessionStartTime;let lastButtonClickTime;function generateSessionId(){return Math.random().toString(36).substring(2,15)+Math.random().toString(36).substring(2,15)}async function getNextAnimal(){try{const response=await fetch("/getNextAnimal");const data=await response.json();document.getElementById("animal-name").textContent=data.animalName}catch(error){console.error("Error fetching data:",error)}}function getSessionId(){const sessionId=document.cookie.replace(/(?:(?:^|.*;\s*)sessionId\s*=\s*([^;]*).*$)|^.*$/,"$1");if(!sessionId){const newSessionId=generateSessionId();document.cookie=`sessionId=${newSessionId}`;return newSessionId}return sessionId}function clearSessionId(){const newSessionId=generateSessionId();document.cookie=`sessionId=${newSessionId}`;setSessionStartTime();getSessionId()}function setSessionStartTime(){sessionStartTime=new Date}function displayTimeDifference(){if(sessionStartTime&&lastButtonClickTime){const timeDifference=lastButtonClickTime-sessionStartTime;console.log(`Time since session start: ${timeDifference} milliseconds`)}}document.getElementById("isCritterButton").addEventListener("click",()=>{recordButtonClick("is critter",getSessionId())});document.getElementById("isNotCritterButton").addEventListener("click",()=>{recordButtonClick("is not critter",getSessionId())});document.getElementById("startOverButton").addEventListener("click",()=>{clearSessionId();getNextAnimal()});async function recordButtonClick(buttonName,sessionId){try{const currentTime=new Date;if(lastButtonClickTime){const timeDifference=currentTime-lastButtonClickTime;const animal=document.getElementById("animal-name").textContent;const bodyData=JSON.stringify({animal:animal,button:buttonName,session:sessionId,difference:timeDifference,time:sessionStartTime});await fetch("/recordButtonClick",{method:"POST",headers:{"Content-Type":"application/json"},body:bodyData})}lastButtonClickTime=currentTime;displayTimeDifference();getNextAnimal()}catch(error){console.error("Error recording button click:",error)}}getNextAnimal();setSessionStartTime();
\ No newline at end of file
diff --git a/express/package-lock.json b/express/package-lock.json
index 142bbc6..531be4b 100644
--- a/express/package-lock.json
+++ b/express/package-lock.json
@@ -12,7 +12,8 @@
         "body-parser": "^1.20.2",
         "express": "^4.18.2",
         "morgan": "^1.10.0",
-        "sqlite3": "^5.1.6"
+        "sqlite3": "^5.1.6",
+        "uglify-js": "^3.17.4"
       }
     },
     "node_modules/@gar/promisify": {
@@ -1716,6 +1717,17 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/uglify-js": {
+      "version": "3.17.4",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.17.4.tgz",
+      "integrity": "sha512-T9q82TJI9e/C1TAxYvfb16xO120tMVFZrGA3f9/P4424DNu6ypK103y0GPFVa17yotwSyZW5iYXgjYHkGrJW/g==",
+      "bin": {
+        "uglifyjs": "bin/uglifyjs"
+      },
+      "engines": {
+        "node": ">=0.8.0"
+      }
+    },
     "node_modules/unique-filename": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/unique-filename/-/unique-filename-1.1.1.tgz",
diff --git a/express/package.json b/express/package.json
index d1f369b..a15ab4d 100644
--- a/express/package.json
+++ b/express/package.json
@@ -17,6 +17,7 @@
     "body-parser": "^1.20.2",
     "express": "^4.18.2",
     "morgan": "^1.10.0",
-    "sqlite3": "^5.1.6"
+    "sqlite3": "^5.1.6",
+    "uglify-js": "^3.17.4"
   }
 }