n8n-workflow-v2.json

{
  "name": "Chatbot Workflow - Working Version",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "chatbot-v2",
        "responseMode": "responseNode",
        "options": {}
      },
      "id": "webhook-trigger",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [240, 300],
      "webhookId": "your-webhook-id-v2"
    },
    {
      "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').first().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": {
        "jsCode": "// Extract the AI response from OpenRouter API response\nconst openRouterResponse = $input.first().json;\nconsole.log('OpenRouter Response:', JSON.stringify(openRouterResponse, null, 2));\n\n// Handle both array and object responses\nlet aiContent;\nif (Array.isArray(openRouterResponse)) {\n  aiContent = openRouterResponse[0]?.choices?.[0]?.message?.content;\n} else {\n  aiContent = openRouterResponse?.choices?.[0]?.message?.content;\n}\n\n// Get webhook input data\nconst webhookData = $('Webhook Trigger').first().json;\nconst chatId = webhookData.body.input.chat_id;\nconst userMessage = webhookData.body.input.message;\n\nconsole.log('Extracted AI Content:', aiContent);\nconsole.log('Chat ID:', chatId);\nconsole.log('User Message:', userMessage);\n\nreturn {\n  success: true,\n  message: 'Response generated successfully',\n  response: aiContent || 'Sorry, I could not generate a response.',\n  chatId: chatId,\n  debug: {\n    openRouterResponse: openRouterResponse,\n    isArray: Array.isArray(openRouterResponse)\n  }\n};"
      },
      "id": "process-response",
      "name": "Process Response",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [900, 200]
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ $json }}"
      },
      "id": "success-response",
      "name": "Success Response",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1,
      "position": [1120, 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": "Process Response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Process Response": {
      "main": [
        [
          {
            "node": "Success Response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}