chatbot/n8n-workflow-direct-response.json at main · Ankush-Rajpoot/chatbot · GitHub

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{
  "name": "Chatbot Workflow - Return First (No DB Save)",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "chatbot",
        "responseMode": "responseNode",
        "options": {}
      },
      "id": "webhook-trigger",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [240, 300],
      "webhookId": "your-webhook-id"
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict"
          },
          "conditions": [
            {
              "id": "condition1",
              "leftValue": "={{ $json.body.session_variables['x-hasura-user-id'] }}",
              "rightValue": "",
              "operator": {
                "type": "string",
                "operation": "notEmpty"
              }
            }
          ],
          "combinator": "and"
        }
      },
      "id": "validate-user",
      "name": "Validate User",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2,
      "position": [460, 300]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "https://openrouter.ai/api/v1/chat/completions",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "Bearer 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"
            },
            {
              "name": "Content-Type",
              "value": "application/json"
            },
            {
              "name": "HTTP-Referer",
              "value": "https://your-app-domain.com"
            },
            {
              "name": "X-Title",
              "value": "Chatbot App"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "{\n  \"model\": \"openai/gpt-3.5-turbo\",\n  \"messages\": [\n    {\n      \"role\": \"system\",\n      \"content\": \"You are a helpful AI assistant. Be concise and friendly in your responses.\"\n    },\n    {\n      \"role\": \"user\",\n      \"content\": \"{{ $('Webhook Trigger').item.json.body.input.message }}\"\n    }\n  ],\n  \"max_tokens\": 150,\n  \"temperature\": 0.7\n}",
        "options": {}
      },
      "id": "call-openrouter",
      "name": "Call OpenRouter AI",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [680, 200]
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "{\n  \"success\": true,\n  \"message\": \"Response generated successfully\",\n  \"response\": \"{{ $json[0].choices[0].message.content }}\",\n  \"chatId\": \"{{ $('Webhook Trigger').item.json.body.input.chat_id }}\"\n}"
      },
      "id": "success-response",
      "name": "Success Response",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1,
      "position": [900, 200]
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "{\n  \"success\": false,\n  \"message\": \"Authentication required: No valid user session\",\n  \"response\": null\n}",
        "options": {
          "responseCode": 401
        }
      },
      "id": "auth-required-response",
      "name": "Auth Required Response",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1,
      "position": [460, 400]
    }
  ],
  "connections": {
    "Webhook Trigger": {
      "main": [
        [
          {
            "node": "Validate User",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Validate User": {
      "main": [
        [
          {
            "node": "Call OpenRouter AI",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Auth Required Response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Call OpenRouter AI": {
      "main": [
        [
          {
            "node": "Success Response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}