Google SheetsのREST APIの使用
上級
これはEngineering, Multimodal AI分野の自動化ワークフローで、17個のノードを含みます。主にSet, Webhook, GoogleSheets, RespondToWebhookなどのノードを使用。 Google Sheetsデータベースを使用してCRUD REST APIを作成
前提条件
- •HTTP Webhookエンドポイント（n8nが自動生成）
- •Google Sheets API認証情報
ワークフロープレビュー
ノード接続関係を可視化、ズームとパンをサポート
ワークフローをエクスポート
以下のJSON設定をn8nにインポートして、このワークフローを使用できます
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"meta": {
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"name": "REST API with Google Sheets",
"tags": [],
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"name": "シートに行を追加",
"type": "n8n-nodes-base.googleSheets",
"position": [
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"parameters": {
"columns": {
"value": {
"name": "={{ $json.body.name }}",
"email": "={{ $json.body.email }}",
"status": "={{ $json.body.status }}"
},
"schema": [
{
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"display": true,
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{
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{
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"sheetName": {
"__rl": true,
"mode": "list",
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"cachedResultName": "REST API data"
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"authentication": "serviceAccount"
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"credentials": {
"googleApi": {
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{
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"position": [
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"webhookId": "e9177cf8-aab6-4cc0-8086-073c294dd575",
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"parameters": {
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{
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"position": [
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"parameters": {
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"respondWith": "json",
"responseBody": "{\n \"status\": \"success\",\n \"message\": \"Record created.\"\n}"
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{
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"name": "Webhook全件取得への応答",
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"parameters": {
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"respondWith": "allIncomingItems"
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{
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{
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"name": "シートの行を取得",
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"position": [
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"parameters": {
"options": {},
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"cachedResultName": "REST API data"
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{
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"parameters": {
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"filtersUI": {
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"sheetName": {
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"cachedResultName": "REST API data"
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"columns": {
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"name": "={{ $json.body.name }}",
"email": "={{ $json.body.email }}",
"status": "={{ $json.body.status }}",
"row_number": "={{ $json.query.id }}"
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"schema": [
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{
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"position": [
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"parameters": {
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"responseMode": "responseNode"
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"typeVersion": 2.1
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{
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"name": "シートから行または列を削除",
"type": "n8n-nodes-base.googleSheets",
"position": [
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"parameters": {
"operation": "delete",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1bQyl8pGVutkq1LRwK_-6TAAcXwNj4_TipeWHi-qmK1Q/edit#gid=0",
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"cachedResultName": "REST API data"
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"startIndex": "={{ $json.query.id }}",
"authentication": "serviceAccount"
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"credentials": {
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"id": "FboA3kaXSneJmEGX",
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"parameters": {
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"responseBody": "{\n \"status\": \"success\",\n \"message\": \"Record deleted.\"\n}"
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{
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"parameters": {
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"content": "## Simple REST API with Google Sheets\n\n### Introduction\n\nThis workflow template demonstrates how to quickly and easily create a simple REST API using n8n and a Google Sheet as a no-code database. It's a perfect starting point for building a backend for small applications, prototypes, or internal tools without writing any code.\n\n### Purpose\n\nThe purpose of this template is to provide a complete, ready-to-use n8n workflow that handles all fundamental CRUD (Create, Read, Update, Delete) operations. The workflow uses a single Webhook trigger to handle POST, GET, PUT, and DELETE requests, allowing you to manage data in your Google Sheet through standard API calls.\n\n### Setup Instructions\n\nTo get started with this template, follow these steps:\n\n1. **Prepare your Google Sheet:** Create a new Google Sheet and add the following column headers in the first row: `name`, `email`, and `status`. You can use this [example Google Sheet](https://docs.google.com/spreadsheets/d/1bQyl8pGVutkq1LRwK_-6TAAcXwNj4_TipeWHi-qmK1Q/edit?usp=sharing) as a starting point. This sheet will serve as your database.\n2. **Authenticate:** In the n8n workflow, connect your Google Account credentials to the Google Sheets nodes.\n3. **Select your data:** Choose the Google Sheet and the corresponding sheet name from the drop-down lists in each of the Google Sheets nodes.\n4. **Activate:** Save and activate the workflow.\n5. Test the API: Use a tool like `curl`, Postman, or Insomnia to test your new API endpoints. The base URL will be your n8n webhook URL followed by `/items`.\n\n#### Example `curl` Commands:\n* **POST (Create):** `curl -X POST YOUR_N8N_WEBHOOK_URL/items -H \"Content-Type: application/json\" -d '{\"name\": \"Alice\", \"email\": \"alice@example.com\", \"status\": \"active\"}'`\n* **GET (Read All):** `curl -X GET YOUR_N8N_WEBHOOK_URL/items/all`\n* **GET (Read Single):** `curl -X GET YOUR_N8N_WEBHOOK_URL/items?id=2`\n* **PUT (Update):** `curl -X PUT YOUR_N8N_WEBHOOK_URL/items?id=2 -H \"Content-Type: application/json\" -d '{\"status\": \"inactive\"}'`\n* **DELETE (Delete):** `curl -X DELETE YOUR_N8N_WEBHOOK_URL/items?id=2`\n\nFor more detailed instructions, including building the workflow in n8n, check out the full blog post: [Build a Simple REST API in 10 Minutes with n8n & Google Sheets](https://n8nplaybook.com/post/2025/08/n8n-google-sheets-rest-api/)"
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"jsonOutput": "={\n \"row_number\": {{ $json.query.id }}\n {{ $if($json.body.keys().length > 0, ', ' + $json.body.toJsonString().replace('{', '').replace('}', ''), '') }}\n}\n"
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}よくある質問
このワークフローの使い方は？
上記のJSON設定コードをコピーし、n8nインスタンスで新しいワークフローを作成して「JSONからインポート」を選択、設定を貼り付けて認証情報を必要に応じて変更してください。
このワークフローはどんな場面に適していますか？
上級 - エンジニアリング, マルチモーダルAI
有料ですか？
このワークフローは完全無料です。ただし、ワークフローで使用するサードパーティサービス（OpenAI APIなど）は別途料金が発生する場合があります。
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