TS demos (#489)

.github/workflows/demos_check.yml

@@ -0,0 +1,47 @@
+name: demos lint
+
+on:
+    push:
+        branches: [master]
+        paths:
+            - "demos/**"
+    pull_request:
+        types: [opened, synchronize]
+        paths:
+            - "demos/**"
+
+concurrency:
+    group: ${{ github.workflow }}-${{ github.ref }}
+    cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}
+
+jobs:
+    check:
+        runs-on: ubuntu-latest
+
+        steps:
+            - name: 📥 Checkout repo
+              uses: actions/checkout@v2
+              with:
+                  submodules: "true"
+
+            - name: 🛠 Setup Node.js
+              uses: actions/setup-node@v2
+              with:
+                  node-version: "20"
+
+            - name: 📦 Cache dependencies
+              uses: actions/cache@v2
+              with:
+                  path: ~/.npm
+                  key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
+                  restore-keys: |
+                      ${{ runner.os }}-node-
+                      ${{ runner.os }}-
+
+            - name: 💾 Install project dependencies
+              working-directory: ./demos
+              run: npm install
+
+            - name: 📖 Lint code
+              working-directory: ./demos
+              run: npm run lint

.gitignore

@@ -1,3 +1,6 @@
+# Schemas generated for TypeScript demos
+/schemas/api_types.schema.json
+
 # Generated by Cargo
 # will have compiled files and executables
 debug/