Add test workflow

.editorconfig

@@ -7,3 +7,7 @@ end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
+
+[*.yml]
+indent_size = 2
+indent_style = space

.github/workflows/nodejs.yml

@@ -0,0 +1,35 @@
+name: Node.js CI
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, windows-latest]
+        node-version: [16.x, 18.x, 20.x]
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: "npm"
+      - name: Install dependencies
+        run: npm ci --fund=false
+      - name: Type checking
+        run: npx tsc -p jsconfig.json
+      - name: Test project
+        run: npm test
+        env:
+          TOKEN: ${{ secrets.TOKEN }}
+          USER_ID: ${{ secrets.USERID }}
+          SESSION_ID: ${{ secrets.SESSIONID }}

jsconfig.json

@@ -13,7 +13,8 @@
 		"typeRoots": [
 			"node_modules/@types",
 			"src/typings"
-		]
+		],
+		"noEmit": true
 	},
 	"exclude": [
 		"node_modules",

package.json

@@ -26,10 +26,15 @@
 	"devDependencies": {
 		"@types/mime": "^3.0.1",
 		"@types/node": "^20.4.5",
-		"@types/sharp": "^0.31.1"
+		"@types/sharp": "^0.31.1",
+		"typescript": "^5.1.6"
 	},
 	"bin": {
 		"instadl": "src/index.js"
 	},
+	"engines": {
+		"npm": ">=8",
+		"node": ">=16"
+	},
 	"type": "module"
 }