インタラクティブなハンズオンチュートリアルでAPIの基礎を学ぶ
上級
これはAI分野の自動化ワークフローで、28個のノードを含みます。主にIf, Set, Wait, Webhook, HttpRequestなどのノードを使用、AI技術を活用したスマート自動化を実現。 対話のなハンズオントレーニングでAPIの基礎を学ぶ
前提条件
- •HTTP Webhookエンドポイント（n8nが自動生成）
- •ターゲットAPIの認証情報が必要な場合あり
カテゴリー
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
{
"meta": {
"instanceId": "e409ea34548a2afe2dffba31130cd1cf2e98ebe2afaeed2a63caf2a0582d1da0"
},
"nodes": [
{
"id": "500527a4-9764-4e12-92f5-cac0dcc6d10b",
"name": "チュートリアル開始",
"type": "n8n-nodes-base.manualTrigger",
"position": [
-900,
360
],
"parameters": {},
"typeVersion": 1
},
{
"id": "41f0f626-eb75-40c9-ae3c-2ad247731885",
"name": "1. 厨房 (GET /menu)",
"type": "n8n-nodes-base.webhook",
"position": [
120,
360
],
"webhookId": "a1b2c3d4-e5f6-7890-1234-567890abcdef",
"parameters": {
"path": "/tutorial/api/menu",
"options": {},
"responseMode": "lastNode"
},
"typeVersion": 2
},
{
"id": "5d0c582c-9de2-4bbd-b514-cf8833c0078a",
"name": "メニューで応答",
"type": "n8n-nodes-base.set",
"position": [
340,
360
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "12345",
"name": "item",
"type": "string",
"value": "Pizza"
},
{
"id": "67890",
"name": "price",
"type": "number",
"value": 12
}
]
}
},
"typeVersion": 3.4
},
{
"id": "6b72ccb7-2a86-4853-b5c5-2e05063231a2",
"name": "1. 顧客 (メニュー項目をGET)",
"type": "n8n-nodes-base.httpRequest",
"position": [
-180,
360
],
"parameters": {
"url": "={{ $('Base URL').last().json.your_n8n_base_url }}/menu",
"options": {}
},
"typeVersion": 4.1
},
{
"id": "61453ac8-362c-4bf9-8c7f-3546a8f51bf6",
"name": "付箋",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1180,
-20
],
"parameters": {
"color": 7,
"width": 880,
"height": 560,
"content": "### Tutorial - What is an API?\n\nWelcome! This workflow will teach you the basics of APIs (Application Programming Interfaces).\n\n**What is an API?**\nThink of it like ordering food at a restaurant.\n- **You** are the \"Client\" (the **HTTP Request** node). You want something.\n- The **Kitchen** is the \"Server\" (the **Webhook** node). It has the data/service you want.\n- The **API** is the **Waiter and the Menu**. It's the set of rules and options you have for making a request and getting a response.\n\n\n**How to use this tutorial:**\n1. Click **\"Execute Workflow\"**. The workflow will run from top to bottom.\n2. Explore each \"Lesson\" by clicking on the **HTTP Request** node (the Customer) and its corresponding **Webhook** node (the Kitchen).\n3. Read the sticky note for each lesson to understand the concept being demonstrated."
},
"typeVersion": 1
},
{
"id": "963b1dce-eb8b-460a-a332-85e690f9ebd1",
"name": "付箋1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-260,
60
],
"parameters": {
"width": 880,
"height": 480,
"content": "#### Lesson 1: The Basics (Method & URL)\n\nThis is the simplest possible request.\n\n- **URL (Uniform Resource Locator):** This is the **address of the restaurant's kitchen**. The HTTP Request node needs to know exactly where to send the order. We use a special n8n expression to get the Webhook's test address automatically.\n\n- **Method: `GET`**: This is **what you want to do**. `GET` means you simply want to **retrieve** or **get** information. It's like asking the waiter, \"What's on the menu today?\"\n\n\n**➡️ Look at the output of the HTTP Request node. It received exactly what the Webhook is configured to listen to!**"
},
"typeVersion": 1
},
{
"id": "067de22c-8dde-45b0-b12c-2581fe5ee82c",
"name": "2. 顧客 (クエリパラメータ付きGET)",
"type": "n8n-nodes-base.httpRequest",
"position": [
-180,
940
],
"parameters": {
"url": "={{ $('Base URL').last().json.your_n8n_base_url }}/order",
"options": {},
"sendQuery": true,
"queryParameters": {
"parameters": [
{
"name": "extra_cheese",
"value": "true"
}
]
}
},
"typeVersion": 4.1
},
{
"id": "dfc50d7c-f4b4-41e6-9fde-1afd45bd740d",
"name": "2. 厨房 (GET /order)",
"type": "n8n-nodes-base.webhook",
"position": [
120,
940
],
"webhookId": "b2c3d4e5-f6a7-8901-2345-67890abcdef1",
"parameters": {
"path": "/tutorial/api/order",
"options": {},
"responseMode": "lastNode"
},
"typeVersion": 2
},
{
"id": "4d2ec461-1ce8-4bb2-a816-5b5032c6376a",
"name": "チーズで応答",
"type": "n8n-nodes-base.set",
"position": [
560,
840
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "12345",
"name": "order",
"type": "string",
"value": "Pizza with extra cheese"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "f06d2605-3114-42a2-9678-d1c6fcc78e62",
"name": "プレーンで応答",
"type": "n8n-nodes-base.set",
"position": [
560,
1040
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "12345",
"name": "order",
"type": "string",
"value": "Plain Pizza"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "f0796062-a671-473e-8fa8-becf4df1ce1d",
"name": "付箋2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-260,
580
],
"parameters": {
"width": 1120,
"height": 640,
"content": "#### Lesson 2: Customizing a Request (Query Parameters)\n\nWhat if you want to customize your order? That's what Query Parameters are for.\n\n**Query Parameters:** These are simple options added to the end of the URL after a `?`. They are key-value pairs used to filter, sort, or specify what you want.\n\nIt's like telling the waiter, \"I'll have the pizza... **and can you add extra cheese?**\"\n\n`?extra_cheese=true` is the query parameter.\n\n**➡️ The Webhook node uses an IF node to check for this parameter and changes its response accordingly.\nTry setting the value to `false` in the HTTP Request node and run it again!**"
},
"typeVersion": 1
},
{
"id": "e789ea65-f365-4657-af7c-3cb48d5f2c52",
"name": "3. 顧客 (ボディ付きPOST)",
"type": "n8n-nodes-base.httpRequest",
"position": [
-180,
1540
],
"parameters": {
"url": "={{ $('Base URL').last().json.your_n8n_base_url }}/review",
"method": "POST",
"options": {},
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "comment",
"value": "I'm so happy !!"
}
]
}
},
"typeVersion": 4.1
},
{
"id": "66688c28-04cd-4c2e-8533-82aa2450becf",
"name": "3. 厨房 (POST /review)",
"type": "n8n-nodes-base.webhook",
"position": [
120,
1540
],
"webhookId": "c3d4e5f6-a7b8-9012-3456-7890abcdef12",
"parameters": {
"path": "/tutorial/api/review",
"options": {},
"httpMethod": "POST",
"responseMode": "lastNode"
},
"typeVersion": 2
},
{
"id": "7f894c9c-d2b0-42dd-bc23-4f9475e0e5df",
"name": "レビューに応答",
"type": "n8n-nodes-base.set",
"position": [
340,
1540
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "12345",
"name": "status",
"type": "string",
"value": "review_received"
},
{
"id": "67890",
"name": "your_comment",
"type": "string",
"value": "={{ $json.body.comment }}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "d899505f-127b-4b21-9616-de10fe08b3e9",
"name": "付箋3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-260,
1260
],
"parameters": {
"width": 880,
"height": 460,
"content": "#### Lesson 3: Sending Data (POST & Body)\n\nSometimes, you don't want to *get* data, you want to *send* it.\n\n- **Method: `POST`**: This method is used to **send new data** to the server. It's like handing the waiter a completed customer feedback card.\n\n- **Body:** This is the **actual data you are sending**. Since you're sending more complex information than a simple query parameter, it goes in a separate \"package\" called the body.\n\n\n**➡️ The HTTP Request sends a JSON object in its body. The Webhook receives it and includes your comment in its response.**"
},
"typeVersion": 1
},
{
"id": "8b797af9-1ef7-4171-b1ef-f1d2bd19daf8",
"name": "4. 顧客 (ヘッダー/認証付きGET)",
"type": "n8n-nodes-base.httpRequest",
"position": [
-180,
2100
],
"parameters": {
"url": "={{ $('Base URL').last().json.your_n8n_base_url }}/secret-dish",
"options": {},
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "x-api-key",
"value": "your-api-key-for-example"
}
]
}
},
"typeVersion": 4.1
},
{
"id": "3d51cbcb-1bc4-4fb7-9356-1c4a92744026",
"name": "4. 厨房 (GET /secret-dish)",
"type": "n8n-nodes-base.webhook",
"position": [
120,
2100
],
"webhookId": "d4e5f6a7-b8c9-0123-4567-890abcdef123",
"parameters": {
"path": "/tutorial/api/secret-dish",
"options": {},
"responseMode": "lastNode"
},
"typeVersion": 2
},
{
"id": "b54cfc3b-d778-473e-98f0-e44625112c52",
"name": "シークレットで応答",
"type": "n8n-nodes-base.set",
"position": [
560,
2000
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "12345",
"name": "dish",
"type": "string",
"value": "The Chef's Special Truffle Pasta"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "aa2fffb1-e28c-4b91-8b17-6784d0aaafb5",
"name": "エラーで応答",
"type": "n8n-nodes-base.set",
"position": [
560,
2200
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "12345",
"name": "error",
"type": "string",
"value": "You are not authorized"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "a8233025-dcc9-49e9-8e9c-3aeb993cd81d",
"name": "付箋4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-260,
1760
],
"parameters": {
"width": 1120,
"height": 620,
"content": "#### Lesson 4: Identification (Headers & Auth)\n\nHeaders contain meta-information *about* your request. They're not part of the data itself, but they provide important context. Authentication is a common use case.\n\n- **Headers:** Think of this as **showing your VIP membership card** or whispering a secret password to the waiter. It's information that proves who you are or what your request's properties are.\n\n- **Authentication (Auth):** This is the process of proving your identity. Here, we use a custom header (`x-auth-token`) as a \"secret key\".\n\n\n**➡️ The Webhook checks for the correct secret key in the headers. If it's wrong or missing, it denies the request!**"
},
"typeVersion": 1
},
{
"id": "f4329ae3-5b44-4d04-a18a-e5ad9475cdbe",
"name": "5. 顧客 (タイムアウト付きリクエスト)",
"type": "n8n-nodes-base.httpRequest",
"onError": "continueRegularOutput",
"position": [
-180,
2740
],
"parameters": {
"url": "={{ $('Base URL').last().json.your_n8n_base_url }}/slow-service",
"options": {
"timeout": 2000
}
},
"typeVersion": 4.1
},
{
"id": "70657e1b-f8a8-443a-9d01-98d0dc073d96",
"name": "5. 厨房 (GET /slow-service)",
"type": "n8n-nodes-base.webhook",
"position": [
120,
2740
],
"webhookId": "e5f6a7b8-c9d0-1234-5678-90abcdef1234",
"parameters": {
"path": "/tutorial/api/slow-service",
"options": {},
"responseMode": "lastNode"
},
"typeVersion": 2
},
{
"id": "ecb8a39c-88a0-4b6a-9f8b-5ac5e63cce3c",
"name": "遅延応答",
"type": "n8n-nodes-base.set",
"position": [
560,
2740
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "12345",
"name": "status",
"type": "string",
"value": "Finally, your food is here!"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "087db781-41f5-4de2-b4a3-e9f53ffb7ab5",
"name": "付箋5",
"type": "n8n-nodes-base.stickyNote",
"position": [
-260,
2420
],
"parameters": {
"width": 1080,
"height": 500,
"content": "#### Lesson 5: Being Patient (Timeout)\n\nAn API request isn't instant. What if the kitchen is really busy?\n\n- **Timeout:** This is the **maximum amount of time (in milliseconds) you are willing to wait** for a response before you give up and walk away.\n\n\nIn this example:\n- The **Kitchen (Webhook)** has a 3-second delay.\n- The **Customer (HTTP Request)** is only willing to wait for 2 seconds (2000 ms).\n\n**➡️ This request is designed to FAIL! The customer gives up before the kitchen can finish the order. This is crucial for preventing your workflows from getting stuck forever waiting for a slow service.**"
},
"typeVersion": 1
},
{
"id": "10fa759b-3729-41d8-88c4-b06852261f12",
"name": "3秒待機",
"type": "n8n-nodes-base.wait",
"position": [
340,
2740
],
"webhookId": "9a79d11e-fb6d-4bc1-89a3-0276182bd9f9",
"parameters": {
"amount": 3
},
"typeVersion": 1.1
},
{
"id": "c0baeacb-f28f-47d6-be03-0886a4ef9d37",
"name": "Base URL",
"type": "n8n-nodes-base.set",
"position": [
-680,
360
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "7edededc-2f40-4b8e-b8db-ab4816f1a28e",
"name": "your_n8n_base_url",
"type": "string",
"value": "={{ $env.WEBHOOK_URL + ($env.N8N_ENDPOINT_WEBHOOK ?? \"webhook\") }}/tutorial/api"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "bd3288ba-e7cf-43b1-b918-ac37bd437788",
"name": "IF Authorized",
"type": "n8n-nodes-base.if",
"position": [
340,
2100
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "ca861c2d-78d9-403b-8bab-28d8e7dcf39c",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.headers['x-api-key'] }}",
"rightValue": "your-api-key-for-example"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "c0bbea62-d40a-4966-bf0a-c30970192686",
"name": "IF extra cheese",
"type": "n8n-nodes-base.if",
"position": [
340,
940
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "ca861c2d-78d9-403b-8bab-28d8e7dcf39c",
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
},
"leftValue": "={{ $json.query.extra_cheese }}",
"rightValue": "your-api-key-for-example"
}
]
},
"looseTypeValidation": true
},
"typeVersion": 2.2
}
],
"pinData": {
"4. The Kitchen (GET /secret-dish)": [
{
"body": {},
"query": {},
"params": {},
"headers": {
"via": "1.1 Caddy",
"host": "api.ia2s.app",
"accept": "application/json,text/html,application/xhtml+xml,application/xml,text/*;q=0.9, image/*;q=0.8, */*;q=0.7",
"api-key": "your-api-key-for-example",
"user-agent": "axios/1.8.3",
"accept-encoding": "gzip, compress, deflate, br",
"x-forwarded-for": "192.168.80.1",
"x-forwarded-host": "api.ia2s.app",
"x-forwarded-proto": "https"
},
"webhookUrl": "https://api.ia2s.app/webhook/tutorial/api/secret-dish",
"executionMode": "production"
}
]
},
"connections": {
"c0baeacb-f28f-47d6-be03-0886a4ef9d37": {
"main": [
[
{
"node": "6b72ccb7-2a86-4853-b5c5-2e05063231a2",
"type": "main",
"index": 0
},
{
"node": "067de22c-8dde-45b0-b12c-2581fe5ee82c",
"type": "main",
"index": 0
},
{
"node": "e789ea65-f365-4657-af7c-3cb48d5f2c52",
"type": "main",
"index": 0
},
{
"node": "8b797af9-1ef7-4171-b1ef-f1d2bd19daf8",
"type": "main",
"index": 0
},
{
"node": "f4329ae3-5b44-4d04-a18a-e5ad9475cdbe",
"type": "main",
"index": 0
}
]
]
},
"bd3288ba-e7cf-43b1-b918-ac37bd437788": {
"main": [
[
{
"node": "b54cfc3b-d778-473e-98f0-e44625112c52",
"type": "main",
"index": 0
}
],
[
{
"node": "aa2fffb1-e28c-4b91-8b17-6784d0aaafb5",
"type": "main",
"index": 0
}
]
]
},
"500527a4-9764-4e12-92f5-cac0dcc6d10b": {
"main": [
[
{
"node": "c0baeacb-f28f-47d6-be03-0886a4ef9d37",
"type": "main",
"index": 0
}
]
]
},
"10fa759b-3729-41d8-88c4-b06852261f12": {
"main": [
[
{
"node": "ecb8a39c-88a0-4b6a-9f8b-5ac5e63cce3c",
"type": "main",
"index": 0
}
]
]
},
"c0bbea62-d40a-4966-bf0a-c30970192686": {
"main": [
[
{
"node": "4d2ec461-1ce8-4bb2-a816-5b5032c6376a",
"type": "main",
"index": 0
}
],
[
{
"node": "f06d2605-3114-42a2-9678-d1c6fcc78e62",
"type": "main",
"index": 0
}
]
]
},
"41f0f626-eb75-40c9-ae3c-2ad247731885": {
"main": [
[
{
"node": "5d0c582c-9de2-4bbd-b514-cf8833c0078a",
"type": "main",
"index": 0
}
]
]
},
"dfc50d7c-f4b4-41e6-9fde-1afd45bd740d": {
"main": [
[
{
"node": "c0bbea62-d40a-4966-bf0a-c30970192686",
"type": "main",
"index": 0
}
]
]
},
"66688c28-04cd-4c2e-8533-82aa2450becf": {
"main": [
[
{
"node": "7f894c9c-d2b0-42dd-bc23-4f9475e0e5df",
"type": "main",
"index": 0
}
]
]
},
"6b72ccb7-2a86-4853-b5c5-2e05063231a2": {
"main": [
[]
]
},
"e789ea65-f365-4657-af7c-3cb48d5f2c52": {
"main": [
[]
]
},
"3d51cbcb-1bc4-4fb7-9356-1c4a92744026": {
"main": [
[
{
"node": "bd3288ba-e7cf-43b1-b918-ac37bd437788",
"type": "main",
"index": 0
}
]
]
},
"70657e1b-f8a8-443a-9d01-98d0dc073d96": {
"main": [
[
{
"node": "10fa759b-3729-41d8-88c4-b06852261f12",
"type": "main",
"index": 0
}
]
]
},
"067de22c-8dde-45b0-b12c-2581fe5ee82c": {
"main": [
[]
]
},
"8b797af9-1ef7-4171-b1ef-f1d2bd19daf8": {
"main": [
[]
]
}
}
}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 - 人工知能
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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ワークフロー情報
難易度
上級
ノード数28
カテゴリー1
ノードタイプ7
作成者
Lucas Peyrin
@lucaspeyrinInnovative builder with a passion for crafting automation solutions that solve real-world challenges. From streamlining workflows to driving efficiency, my work empowers teams and individuals to achieve more with less effort. Experienced in developing scalable tools and strategies that deliver results with n8n, supabase and cline.
外部リンク
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