no idea what i did

server/package-lock.json

@@ -26,6 +26,7 @@
       "devDependencies": {
         "@types/bcryptjs": "^2.4.2",
         "@types/config": "^3.3.0",
+        "@types/cors": "^2.8.17",
         "@types/express": "^4.17.17",
         "@types/gravatar": "^1.8.3",
         "@types/jsonwebtoken": "^9.0.2",
@@ -116,6 +117,16 @@
         "@types/node": "*"
       }
     },
+    "node_modules/@types/cors": {
+      "version": "2.8.17",
+      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.17.tgz",
+      "integrity": "sha512-8CGDvrBj1zgo2qE+oS3pOCyYNqCPryMWY2bGfwA0dcfopWGgxs+78df0Rs3rc9THP4JkOhLsAa+15VdpAqkcUA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/express": {
       "version": "4.17.17",
       "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.17.tgz",
@@ -552,6 +563,7 @@
       "version": "2.8.5",
       "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
       "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+      "license": "MIT",
       "dependencies": {
         "object-assign": "^4",
         "vary": "^1"
@@ -2209,6 +2221,15 @@
         "@types/node": "*"
       }
     },
+    "@types/cors": {
+      "version": "2.8.17",
+      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.17.tgz",
+      "integrity": "sha512-8CGDvrBj1zgo2qE+oS3pOCyYNqCPryMWY2bGfwA0dcfopWGgxs+78df0Rs3rc9THP4JkOhLsAa+15VdpAqkcUA==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/express": {
       "version": "4.17.17",
       "resolved": "https://registry.npmjs.org/@types/express/-/express-4.17.17.tgz",

server/package.json

@@ -27,6 +27,7 @@
   "devDependencies": {
     "@types/bcryptjs": "^2.4.2",
     "@types/config": "^3.3.0",
+    "@types/cors": "^2.8.17",
     "@types/express": "^4.17.17",
     "@types/gravatar": "^1.8.3",
     "@types/jsonwebtoken": "^9.0.2",

server/server.ts

@@ -1,10 +1,13 @@
 import express from "express";
-
 import connectDB from "./config/db";
-
 import path from "path";
+import cors from "cors";
+
 const app = express();
 
+// add cors otherwise fronend cannot access backedn
+app.use(cors());
+
 connectDB();
 
 app.use(express.json());
@@ -18,7 +21,7 @@ app.use("/api/posts", require("./routers/api/posts"));
 if (process.env.NODE_ENV === "production") {
   console.log("in production");
   app.use(express.static("client/build"));
-  app.get("*", (req, res) => [
+  app.get("*", (_, res) => [
     res.sendFile(path.resolve(__dirname, "client", "build", "index.html")),
   ]);
 }