Create CI

.github/workflows/main.yml

@@ -0,0 +1,45 @@
+# use Ubuntu 22.04 & Node 18
+name: Build & Test
+
+on: [pull_request]
+
+jobs:
+  backend:
+    runs-on: ubuntu-22.04
+    defaults:
+      run:
+        working-directory: backend
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18.x
+      - name: Install dependencies
+        run: npm ci
+      - name: Run prettier
+        run: npx prettier . --check
+      - name: Build
+        run: npm run build
+      - name: Tests
+        run: npm run test
+
+  frontend:
+    runs-on: ubuntu-22.04
+    defaults:
+      run:
+        working-directory: frontend
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18.x
+      - name: Install dependencies
+        run: npm ci
+      - name: Run prettier on frontend
+        run: npx prettier . --check
+      - name: Build
+        run: npm run build
+      - name: Tests
+        run: npm run test