cron job to expire admin notes

Author: applepie7864

backend/Dockerfile

@@ -12,6 +12,7 @@ COPY ./prisma ./prisma
 # libcurl3 is required for mongodb-memory-server, which is used for testing
 # RUN apt-get update && apt-get install -y libcurl3
 
+RUN yarn cache clean
 RUN yarn install
 
 COPY . ./

backend/crons/index.ts

@@ -0,0 +1,9 @@
+import cron from "node-cron";
+import expireAdminNotes from "./scripts/expireAdminNotes";
+
+cron.schedule("0 0 * * * *", async () => {
+  const res = await expireAdminNotes();
+  if (res) {
+    console.log("Deleted expired notes");
+  }
+});

backend/crons/scripts/expireAdminNotes.ts

@@ -0,0 +1,20 @@
+import prisma from "../../prisma";
+
+async function expireAdminNotes(): Promise<boolean> {
+  const limit = new Date(Date.now() - 48 * 60 * 60 * 1000);
+  try {
+    await prisma.note.deleteMany({
+      where: {
+        date: {
+          lt: limit.toISOString(),
+        },
+      },
+    });
+    return true;
+  } catch (err) {
+    console.log(err);
+    return false;
+  }
+}
+
+export default expireAdminNotes;

backend/package.json

@@ -59,6 +59,7 @@
     "@types/lodash": "^4.14.168",
     "@types/mongoose": "^5.10.3",
     "@types/node": "^14.14.31",
+    "@types/node-cron": "^3.0.11",
     "@types/node-fetch": "^2.5.8",
     "@types/nodemailer": "^6.4.1",
     "@types/pg": "^7.14.10",
@@ -73,6 +74,7 @@
     "eslint-plugin-prettier": "^3.3.1",
     "jest": "^27.0.4",
     "mongodb-memory-server": "^6.9.6",
+    "node-cron": "^3.0.3",
     "nodemon": "^2.0.7",
     "prettier": "^2.2.1",
     "prisma": "5.11.0",

backend/server.ts

@@ -5,6 +5,8 @@ import express from "express";
 import { ApolloServer } from "apollo-server-express";
 import schema from "./graphql";
 
+require("./crons/index.ts");
+
 const CORS_ALLOW_LIST = [
   "http://localhost:3000",
   "https://uw-blueprint-starter-code.firebaseapp.com",

backend/yarn.lock

@@ -43,7 +43,8 @@ const NoteSection = () => {
       await createNote({
         variables: {
           message: newNote,
-          date: formatted,
+          date: now.toISOString(),
+          formattedDate: formatted,
         },
       });
       window.location.reload();
@@ -158,7 +159,7 @@ const NoteSection = () => {
                     alignItems="flex-end"
                   >
                     <Flex fontSize="sm" color="gray.500">
-                      {note.date}
+                      {note.formattedDate}
                     </Flex>
                     <Flex
                       onClick={() => dismissNote(note.noteId)}

frontend/public/favicon.ico

@@ -35,8 +35,12 @@ export const UPDATE_PARTICIPANT_BY_ID = gql`
 `;
 
 export const CREATE_NOTE = gql`
-  mutation createNote($message: String!, $date: String!) {
-    createNote(message: $message, date: $date)
+  mutation createNote(
+    $message: String!
+    $date: String!
+    $formattedDate: String!
+  ) {
+    createNote(message: $message, date: $date, formattedDate: $formattedDate)
   }
 `;
 

frontend/src/components/pages/home/NoteSection.tsx

@@ -45,7 +45,7 @@ export const GET_NOTES = gql`
     getNotes {
       noteId
       message
-      date
+      formattedDate
     }
   }
 `;