add typescript support

packages/worker/.gitignore

@@ -1,3 +1,4 @@
 node_modules/
 .env
-watchtower-hook.json
+watchtower-hook.json
+dist/

packages/worker/package.json

@@ -62,6 +62,7 @@
     "nodemon": "^2.0.7",
     "pouchdb-adapter-memory": "^7.2.2",
     "supertest": "^6.1.3",
+    "typescript": "^4.5.4",
     "update-dotenv": "^1.1.1"
   },
   "jest": {

packages/worker/tsconfig.json

@@ -0,0 +1,23 @@
+{
+  "compilerOptions": {
+    "target": "es6",
+    "module": "commonjs",
+    "lib": ["es2019"],
+    "allowJs": true,
+    "outDir": "dist",
+    "strict": true,
+    "noImplicitAny": true,
+    "esModuleInterop": true,
+    "resolveJsonModule": true,
+    "incremental": true
+  },
+  "include": [
+    "./src/**/*"
+  ],
+  "exclude": [
+    "node_modules",
+    "**/*.json",
+    "**/*.spec.ts",
+    "**/*.spec.js"
+  ]
+}