feat: route requests

Sets up a basic TypeScript project which contains a type for a function that creates a middleware
that tries to route the request.

.github/workflows/checks.yml

@@ -25,3 +25,22 @@ jobs:
 
       - name: 'Run formatter'
         run: npm run format
+
+  typecheck:
+    runs-on: ubuntu-20.04
+
+    steps:
+      - name: 'Checkout code'
+        uses: actions/checkout@v2
+
+      - name: 'Set up Node.js'
+        uses: actions/setup-node@v2
+        with:
+          node-version: 16
+          cache: ${{ !env.ACT && 'npm' || '' }}
+
+      - name: 'Install dependencies'
+        run: npm ci
+
+      - name: 'Run typechecker'
+        run: npm run typecheck

.prettierrc

@@ -1,5 +1,7 @@
 {
   "arrowParens": "avoid",
+  "importOrder": ["^[./]"],
+  "importOrderSortSpecifiers": true,
   "printWidth": 120,
   "semi": false,
   "singleQuote": true,