diff --git a/.github/actions/app-test/action.yml b/.github/actions/app-test/action.yml
new file mode 100644
index 000000000..5613e8e0e
--- /dev/null
+++ b/.github/actions/app-test/action.yml
@@ -0,0 +1,55 @@
+name: 'Start and Test Node.js App'
+description: 'Starts Node.js app, runs tests, and shuts it down'
+inputs:
+  port:
+    description: 'Port on which the Node.js app is running'
+    required: true
+  path:
+    description: 'Path to test with the HTTP request'
+    required: false
+    default: ""
+  method:
+    description: 'HTTP method to use for the test (GET, POST, etc.)'
+    required: true
+  body:
+    description: 'Request body for POST method (optional)'
+    required: false
+    default: ""
+  working-directory:
+    description: 'Working directory of the Node.js app'
+    required: true
+  channel-access-token:
+    description: 'Channel access token'
+    required: true
+  channel-secret:
+    description: 'Channel secret'
+    required: true
+
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Start application
+      run: |
+        export CHANNEL_ACCESS_TOKEN=${{ inputs.channel-access-token }}
+        export CHANNEL_SECRET=${{ inputs.channel-secret }}
+        npm start &
+      shell: bash
+      working-directory: ${{ inputs.working-directory }}
+
+    - name: Wait for application to start
+      run: sleep 3
+      shell: bash
+
+    - name: Test application
+      run: |
+        if [ "${{ inputs.method }}" = "POST" ]; then
+          curl --fail -X POST -d '${{ inputs.body }}' http://localhost:${{ inputs.port }}/${{ inputs.path }} || exit 1
+        else
+          curl --fail -X ${{ inputs.method }} http://localhost:${{ inputs.port }}/${{ inputs.path }} || exit 1
+        fi
+      shell: bash
+
+    - name: Kill application
+      run: pkill node
+      shell: bash
diff --git a/.github/actions/setup-and-build/action.yml b/.github/actions/setup-and-build/action.yml
new file mode 100644
index 000000000..acb69d23a
--- /dev/null
+++ b/.github/actions/setup-and-build/action.yml
@@ -0,0 +1,35 @@
+# .github/actions/setup-and-build/action.yml
+name: 'Setup and Build'
+description: 'Sets up Java, Node.js, installs dependencies, and builds the project'
+inputs:
+  node-version:
+    description: 'Node.js version to setup'
+    required: true
+
+runs:
+  using: 'composite'
+  steps:
+    - name: Setup Java
+      uses: actions/setup-java@v4
+      with:
+        distribution: 'temurin'
+        java-version: 17
+        architecture: x64
+
+    - name: Setup Node.js
+      uses: actions/setup-node@v4
+      with:
+        node-version: ${{ inputs.node-version }}
+        cache: 'npm'
+
+    - name: Install Dependency
+      run: npm ci
+      shell: bash
+
+    - name: Test generator
+      run: cd generator; mvn package; cd ..
+      shell: bash
+
+    - name: Generate code
+      run: python3 generate-code.py
+      shell: bash
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 888701c06..c038262c6 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,51 +16,100 @@ jobs:
         node: [ '18', '20' ]
       fail-fast: false
 
-    name: Node.js ${{ matrix.node }}
+    name: Node.js ${{ matrix.node }} - test
 
     steps:
     - uses: actions/checkout@v4
       with:
         submodules: true
-    - name: actions/setup-java@v3
-      uses: actions/setup-java@v4
-      with:
-        distribution: 'temurin'
-        java-version: 17
-        architecture: x64
-    - name: Setup Node.js
-      uses: actions/setup-node@v4
+    - name: Setup and Build
+      uses: ./.github/actions/setup-and-build
       with:
         node-version: ${{ matrix.node }}
-        cache: 'npm'
-    - name: Install Dependency
-      run: npm ci
-    - name: Test generator
-      run: cd generator; mvn package; cd ..
-    - name: Generate code
-      run: |
-        python3 generate-code.py
+
     - name: Test Project
       run: export NODE_OPTIONS=--max-old-space-size=6144; npm test
     - name: Test building apidocs
       run: export NODE_OPTIONS=--openssl-legacy-provider; npm run apidocs
     - name: Test building docs
       run: export NODE_OPTIONS=--openssl-legacy-provider; npm run docs:build
-    - name: Test building examples (CJS)
+
+    - name: publint
+      run: npx publint
+    - name: validate package
+      run: npx @arethetypeswrong/cli $(npm pack)
+
+  example:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        # https://nodejs.org/en/about/releases/
+        node: [ '18', '20' ]
+      fail-fast: false
+    name: Node.js ${{ matrix.node }} - example
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: true
+    # TODO: Enable this again
+    # - name: Setup and Build
+    #   uses: ./.github/actions/setup-and-build
+    #   with:
+    #     node-version: ${{ matrix.node }}
+    - name: Test building examples (JS + ESM)
+      run: |
+        cd examples/echo-bot-esm
+        npm run build-sdk
+        npm install
+    - name: Test Node.js App (echo-bot-esm)
+      uses: ./.github/actions/app-test
+      with:
+        port: '3000'
+        method: 'GET'
+        working-directory: examples/echo-bot-esm
+        channel-access-token: ${{ secrets.CHANNEL_ACCESS_TOKEN }}
+        channel-secret: ${{ secrets.CHANNEL_SECRET }}
+
+    - name: Test building examples (TS + CJS)
       run: |
         cd examples/echo-bot-ts-cjs
         npm run build-sdk
         npm install
         npm run build
-        cd -
-    - name: Test building examples (ESM)
+    - name: Test Node.js App (echo-bot-ts-cjs)
+      uses: ./.github/actions/app-test
+      with:
+        port: '3000'
+        method: 'GET'
+        working-directory: examples/echo-bot-ts-cjs
+        channel-access-token: ${{ secrets.CHANNEL_ACCESS_TOKEN }}
+        channel-secret: ${{ secrets.CHANNEL_SECRET }}
+
+    - name: Test building examples (TS + ESM)
       run: |
         cd examples/echo-bot-ts-esm
         npm run build-sdk
         npm install
         npm run build
-        cd -
-    - name: publint
-      run: npx publint
-    - name: validate package
-      run: npx @arethetypeswrong/cli $(npm pack)
+    - name: Test Node.js App (echo-bot-ts-esm)
+      uses: ./.github/actions/app-test
+      with:
+        port: '3000'
+        method: 'GET'
+        working-directory: examples/echo-bot-ts-esm
+        channel-access-token: ${{ secrets.CHANNEL_ACCESS_TOKEN }}
+        channel-secret: ${{ secrets.CHANNEL_SECRET }}
+
+    - name: Test building examples (JS + CJS)
+      run: |
+        cd examples/echo-bot
+        npm run build-sdk
+        npm install
+    - name: Test Node.js App (echo-bot)
+      uses: ./.github/actions/app-test
+      with:
+        port: '3000'
+        method: 'GET'
+        working-directory: examples/echo-bot
+        channel-access-token: ${{ secrets.CHANNEL_ACCESS_TOKEN }}
+        channel-secret: ${{ secrets.CHANNEL_SECRET }}
diff --git a/docs/getting-started/requirements.md b/docs/getting-started/requirements.md
index 5b4c1a4bb..06ce6a4c8 100644
--- a/docs/getting-started/requirements.md
+++ b/docs/getting-started/requirements.md
@@ -1,7 +1,7 @@
 # Requirements
 
 * **Node.js** >= 18.
-  * It uses ES2015.
+  * It uses ES2022.
 * [**npm**](https://www.npmjs.com/), preferably >=10
 
 Other dependencies are installed via npm, and do not need to be pre-installed.
diff --git a/examples/echo-bot-esm/README.md b/examples/echo-bot-esm/README.md
new file mode 100644
index 000000000..476d01741
--- /dev/null
+++ b/examples/echo-bot-esm/README.md
@@ -0,0 +1,32 @@
+# Echo Bot (ESM)
+
+An example LINE bot just to echo messages
+
+## How to use
+
+### Install deps
+
+``` shell
+$ npm build-sdk
+$ npm install
+```
+
+### Configuration
+
+``` shell
+$ export CHANNEL_SECRET=YOUR_CHANNEL_SECRET
+$ export CHANNEL_ACCESS_TOKEN=YOUR_CHANNEL_ACCESS_TOKEN
+$ export PORT=1234
+```
+
+### Run
+
+``` shell
+$ node .
+```
+
+## Webhook URL
+
+```
+https://your.base.url/callback
+```
diff --git a/examples/echo-bot-esm/index.js b/examples/echo-bot-esm/index.js
new file mode 100644
index 000000000..c633ae9b5
--- /dev/null
+++ b/examples/echo-bot-esm/index.js
@@ -0,0 +1,71 @@
+import { messagingApi, middleware } from '@line/bot-sdk';
+import express from 'express';
+
+// create LINE SDK config from env variables
+const config = {
+  channelAccessToken: process.env.CHANNEL_ACCESS_TOKEN,
+  channelSecret: process.env.CHANNEL_SECRET,
+};
+
+// create LINE SDK client
+const client = new messagingApi.MessagingApiClient({
+  channelAccessToken: process.env.CHANNEL_ACCESS_TOKEN
+});
+
+// create Express app
+// about Express itself: https://expressjs.com/
+const app = express();
+
+app.get(
+  '/',
+  async (_, res) => {
+    const botInfo = await client.getBotInfo()
+    if (botInfo.displayName.length < 2) {
+      return res.status(500).json({
+        status: 'failure',
+        message: 'api call failed',
+      });
+    } else {
+      return res.status(200).json({
+        status: 'success',
+        message: `${JSON.stringify(botInfo)}`,
+      });
+    }
+  }
+);
+
+
+// register a webhook handler with middleware
+// about the middleware, please refer to doc
+app.post('/callback', middleware(config), (req, res) => {
+  Promise
+    .all(req.body.events.map(handleEvent))
+    .then((result) => res.json(result))
+    .catch((err) => {
+      console.error(err);
+      res.status(500).end();
+    });
+});
+
+// event handler
+function handleEvent(event) {
+  if (event.type !== 'message' || event.message.type !== 'text') {
+    // ignore non-text-message event
+    return Promise.resolve(null);
+  }
+
+  // create an echoing text message
+  const echo = { type: 'text', text: event.message.text };
+
+  // use reply API
+  return client.replyMessage({
+    replyToken: event.replyToken,
+    messages: [echo],
+  });
+}
+
+// listen on port
+const port = process.env.PORT || 3000;
+app.listen(port, () => {
+  console.log(`listening on ${port}`);
+});
diff --git a/examples/echo-bot-esm/package-lock.json b/examples/echo-bot-esm/package-lock.json
new file mode 100644
index 000000000..ebac80546
--- /dev/null
+++ b/examples/echo-bot-esm/package-lock.json
@@ -0,0 +1,640 @@
+{
+  "name": "echo-bot",
+  "version": "0.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "echo-bot",
+      "version": "0.0.0",
+      "dependencies": {
+        "@line/bot-sdk": "../../",
+        "express": "^4.17.3"
+      }
+    },
+    "../..": {
+      "name": "@line/bot-sdk",
+      "version": "__LINE_BOT_SDK_NODEJS_VERSION__",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "@types/node": "^20.0.0"
+      },
+      "devDependencies": {
+        "@types/express": "4.17.21",
+        "@types/finalhandler": "1.2.3",
+        "@types/mocha": "10.0.6",
+        "@vitest/coverage-v8": "^1.4.0",
+        "express": "4.19.2",
+        "finalhandler": "1.2.0",
+        "husky": "9.0.11",
+        "msw": "2.2.11",
+        "prettier": "3.2.5",
+        "ts-node": "10.9.2",
+        "typedoc": "^0.25.1",
+        "typedoc-plugin-markdown": "^3.16.0",
+        "typescript": "5.4.3",
+        "vite": "^5.2.7",
+        "vitepress": "^1.0.1",
+        "vitest": "^1.4.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "optionalDependencies": {
+        "axios": "^1.0.0"
+      }
+    },
+    "node_modules/@line/bot-sdk": {
+      "resolved": "../..",
+      "link": true
+    },
+    "node_modules/accepts": {
+      "version": "1.3.8",
+      "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
+      "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
+      "dependencies": {
+        "mime-types": "~2.1.34",
+        "negotiator": "0.6.3"
+      },
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/array-flatten": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
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+    },
+    "node_modules/bytes": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
+      "integrity": "sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==",
+      "engines": {
+        "node": ">= 0.8"
+      }
+    },
+    "node_modules/call-bind": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.2.tgz",
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+      "dependencies": {
+        "function-bind": "^1.1.1",
+        "get-intrinsic": "^1.0.2"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/content-disposition": {
+      "version": "0.5.4",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz",
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+      },
+      "engines": {
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+      }
+    },
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+      }
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+    },
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+    },
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+      }
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+        "node": ">= 0.8",
+        "npm": "1.2.8000 || >= 1.4.16"
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+        "encodeurl": "~1.0.2",
+        "escape-html": "~1.0.3",
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+        "utils-merge": "1.0.1",
+        "vary": "~1.1.2"
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+        "content-type": "~1.0.4",
+        "debug": "2.6.9",
+        "depd": "2.0.0",
+        "destroy": "1.2.0",
+        "http-errors": "2.0.0",
+        "iconv-lite": "0.4.24",
+        "on-finished": "2.4.1",
+        "qs": "6.11.0",
+        "raw-body": "2.5.1",
+        "type-is": "~1.6.18",
+        "unpipe": "1.0.0"
+      },
+      "engines": {
+        "node": ">= 0.8",
+        "npm": "1.2.8000 || >= 1.4.16"
+      }
+    },
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diff --git a/examples/echo-bot-esm/package.json b/examples/echo-bot-esm/package.json
new file mode 100644
index 000000000..370eda132
--- /dev/null
+++ b/examples/echo-bot-esm/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "echo-bot",
+  "version": "0.0.0",
+  "description": "An example LINE bot just to echo messages",
+  "main": "index.js",
+  "scripts": {
+    "build-sdk": "cd ../../; npm i; npm run build",
+    "start": "node ."
+  },
+  "dependencies": {
+    "@line/bot-sdk": "../../",
+    "express": "^4.17.3"
+  },
+  "type": "module"
+}
diff --git a/examples/echo-bot-ts-cjs/index.ts b/examples/echo-bot-ts-cjs/index.ts
index 193fc4b82..918c1a920 100644
--- a/examples/echo-bot-ts-cjs/index.ts
+++ b/examples/echo-bot-ts-cjs/index.ts
@@ -59,10 +59,18 @@ const textEventHandler = async (event: webhook.Event): Promise<MessageAPIRespons
 app.get(
   '/',
   async (_: Request, res: Response): Promise<Response> => {
-    return res.status(200).json({
-      status: 'success',
-      message: 'Connected successfully!',
-    });
+    const botInfo = await client.getBotInfo()
+    if (botInfo.displayName.length < 2) {
+      return res.status(500).json({
+        status: 'failure',
+        message: 'api call failed',
+      });
+    } else {
+      return res.status(200).json({
+        status: 'success',
+        message: `${JSON.stringify(botInfo)}`,
+      });
+    }
   }
 );
 
diff --git a/examples/echo-bot-ts-cjs/package-lock.json b/examples/echo-bot-ts-cjs/package-lock.json
index 09d14a044..28dc0caef 100644
--- a/examples/echo-bot-ts-cjs/package-lock.json
+++ b/examples/echo-bot-ts-cjs/package-lock.json
@@ -15,7 +15,7 @@
         "@types/express": "^4.17.17",
         "@types/node": "^20.6.3",
         "rimraf": "^5.0.1",
-        "typescript": "^5.4.3"
+        "typescript": "^5.2.2"
       }
     },
     "../..": {
diff --git a/examples/echo-bot-ts-cjs/package.json b/examples/echo-bot-ts-cjs/package.json
index 7b4941c01..194fbd116 100644
--- a/examples/echo-bot-ts-cjs/package.json
+++ b/examples/echo-bot-ts-cjs/package.json
@@ -17,6 +17,6 @@
     "@types/express": "^4.17.17",
     "@types/node": "^20.6.3",
     "rimraf": "^5.0.1",
-    "typescript": "^5.4.3"
+    "typescript": "^5.2.2"
   }
 }
diff --git a/examples/echo-bot-ts-cjs/tsconfig.json b/examples/echo-bot-ts-cjs/tsconfig.json
index 40dce4749..49e37f24e 100644
--- a/examples/echo-bot-ts-cjs/tsconfig.json
+++ b/examples/echo-bot-ts-cjs/tsconfig.json
@@ -1,6 +1,6 @@
 {
   "compilerOptions": {
-    "target": "ES2017",
+    "target": "ES2022",
     "module": "commonjs",
     "outDir": "./dist",
     "strict": true,
diff --git a/examples/echo-bot-ts-esm/index.ts b/examples/echo-bot-ts-esm/index.ts
index 193fc4b82..918c1a920 100644
--- a/examples/echo-bot-ts-esm/index.ts
+++ b/examples/echo-bot-ts-esm/index.ts
@@ -59,10 +59,18 @@ const textEventHandler = async (event: webhook.Event): Promise<MessageAPIRespons
 app.get(
   '/',
   async (_: Request, res: Response): Promise<Response> => {
-    return res.status(200).json({
-      status: 'success',
-      message: 'Connected successfully!',
-    });
+    const botInfo = await client.getBotInfo()
+    if (botInfo.displayName.length < 2) {
+      return res.status(500).json({
+        status: 'failure',
+        message: 'api call failed',
+      });
+    } else {
+      return res.status(200).json({
+        status: 'success',
+        message: `${JSON.stringify(botInfo)}`,
+      });
+    }
   }
 );
 
diff --git a/examples/echo-bot-ts-esm/tsconfig.json b/examples/echo-bot-ts-esm/tsconfig.json
index 835590bf2..592c51ae6 100644
--- a/examples/echo-bot-ts-esm/tsconfig.json
+++ b/examples/echo-bot-ts-esm/tsconfig.json
@@ -1,9 +1,9 @@
 {
   "compilerOptions": {
-    "target": "ESNext",
+    "target": "ES2022",
     "module": "NodeNext",
-    "outDir": "./dist",
     "moduleResolution": "NodeNext",
+    "outDir": "./dist",
     "esModuleInterop": true,
     "forceConsistentCasingInFileNames": true
   },
diff --git a/examples/echo-bot/index.js b/examples/echo-bot/index.js
index eec2fc114..feabfdac2 100644
--- a/examples/echo-bot/index.js
+++ b/examples/echo-bot/index.js
@@ -18,6 +18,25 @@ const client = new line.messagingApi.MessagingApiClient({
 // about Express itself: https://expressjs.com/
 const app = express();
 
+app.get(
+  '/',
+  async (_, res) => {
+    const botInfo = await client.getBotInfo()
+    if (botInfo.displayName.length < 2) {
+      return res.status(500).json({
+        status: 'failure',
+        message: 'api call failed',
+      });
+    } else {
+      return res.status(200).json({
+        status: 'success',
+        message: `${JSON.stringify(botInfo)}`,
+      });
+    }
+  }
+);
+
+
 // register a webhook handler with middleware
 // about the middleware, please refer to doc
 app.post('/callback', line.middleware(config), (req, res) => {
diff --git a/examples/echo-bot/package-lock.json b/examples/echo-bot/package-lock.json
index b2ebf36cc..ebac80546 100644
--- a/examples/echo-bot/package-lock.json
+++ b/examples/echo-bot/package-lock.json
@@ -23,18 +23,19 @@
         "@types/express": "4.17.21",
         "@types/finalhandler": "1.2.3",
         "@types/mocha": "10.0.6",
+        "@vitest/coverage-v8": "^1.4.0",
         "express": "4.19.2",
         "finalhandler": "1.2.0",
         "husky": "9.0.11",
-        "mocha": "10.4.0",
         "msw": "2.2.11",
-        "nyc": "15.1.0",
         "prettier": "3.2.5",
         "ts-node": "10.9.2",
         "typedoc": "^0.25.1",
         "typedoc-plugin-markdown": "^3.16.0",
         "typescript": "5.4.3",
-        "vitepress": "^1.0.1"
+        "vite": "^5.2.7",
+        "vitepress": "^1.0.1",
+        "vitest": "^1.4.0"
       },
       "engines": {
         "node": ">=18"
diff --git a/tsconfig.json b/tsconfig.json
index 9c302f573..58f20519d 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,9 +1,9 @@
 {
   "compilerOptions": {
-    "module": "NodeNext",
-    "moduleResolution": "NodeNext",
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "target": "ES2022",
     "esModuleInterop": true,
-    "target": "ES2018",
     "noImplicitAny": true,
     "newLine": "LF",
     "sourceMap": true,