n8n-workflow-v3.json

{
  "name": "Chatbot Workflow - JavaScript Request Builder",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "chatbot-v3",
        "responseMode": "responseNode",
        "options": {}
      },
      "id": "webhook-trigger",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 1,
      "position": [240, 300],
      "webhookId": "your-webhook-id-v3"
    },
    {
      "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": {
        "jsCode": "// Extract webhook data and prepare OpenRouter request\nconst webhookData = $input.first().json;\nconsole.log('Webhook Data:', JSON.stringify(webhookData, null, 2));\n\nconst userMessage = webhookData.body.input.message;\nconst chatId = webhookData.body.input.chat_id;\nconst userId = webhookData.body.session_variables['x-hasura-user-id'];\n\nconsole.log('User Message:', userMessage);\nconsole.log('Chat ID:', chatId);\nconsole.log('User ID:', userId);\n\n// Prepare OpenRouter API request\nconst openRouterRequest = {\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: userMessage\n    }\n  ],\n  max_tokens: 150,\n  temperature: 0.7\n};\n\nconsole.log('OpenRouter Request:', JSON.stringify(openRouterRequest, null, 2));\n\nreturn {\n  openRouterRequest: openRouterRequest,\n  chatId: chatId,\n  userMessage: userMessage,\n  userId: userId\n};"
      },
      "id": "prepare-request",
      "name": "Prepare Request",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [680, 200]
    },
    {
      "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": "={{ $json.openRouterRequest }}",
        "options": {}
      },
      "id": "call-openrouter",
      "name": "Call OpenRouter AI",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [900, 200]
    },
    {
      "parameters": {
        "jsCode": "// Process OpenRouter response and save to database\nconst openRouterResponse = $input.first().json;\nconst requestData = $('Prepare Request').first().json;\n\nconsole.log('OpenRouter Response:', JSON.stringify(openRouterResponse, null, 2));\nconsole.log('Request Data:', JSON.stringify(requestData, null, 2));\n\n// Extract AI content (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\nconst chatId = requestData.chatId;\nconst userMessage = requestData.userMessage;\n\nconsole.log('Extracted AI Content:', aiContent);\nconsole.log('Chat ID:', chatId);\n\nif (!aiContent) {\n  throw new Error('Failed to extract AI content from OpenRouter response');\n}\n\n// Save to database using n8n's $http helper\nconst graphqlQuery = {\n  query: `mutation InsertBotMessage($chatId: uuid!, $content: String!) { \n    insert_messages_one(object: { chat_id: $chatId, content: $content, is_bot: true }) { \n      id \n    } \n  }`,\n  variables: {\n    chatId: chatId,\n    content: aiContent\n  }\n};\n\nconsole.log('GraphQL Query:', JSON.stringify(graphqlQuery, null, 2));\n\n// Make the GraphQL request using n8n's $http helper\ntry {\n  const dbResult = await $http.request({\n    method: 'POST',\n    url: 'https://wertssqowjrkykmeovsg.hasura.ap-south-1.nhost.run/v1/graphql',\n    headers: {\n      'Content-Type': 'application/json',\n      'x-hasura-admin-secret': 'Hq=1ILX8*V%Df8PlCyljd*BVys-::p,A'\n    },\n    body: graphqlQuery\n  });\n  \n  console.log('Database Save Result:', JSON.stringify(dbResult, null, 2));\n  \n  if (dbResult.errors) {\n    console.error('Database save failed:', dbResult.errors);\n  }\n} catch (dbError) {\n  console.error('Database request failed:', dbError);\n  // Don't throw error, just log it and continue\n}\n\n// Return success response\nreturn {\n  success: true,\n  message: 'Response generated successfully',\n  response: aiContent,\n  debug: {\n    openRouterResponse: openRouterResponse,\n    chatId: chatId\n  }\n};"
      },
      "id": "process-and-save",
      "name": "Process and Save",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [1120, 200]
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ $json }}"
      },
      "id": "success-response",
      "name": "Success Response",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1,
      "position": [1340, 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": "Prepare Request",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Auth Required Response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Prepare Request": {
      "main": [
        [
          {
            "node": "Call OpenRouter AI",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Call OpenRouter AI": {
      "main": [
        [
          {
            "node": "Process and Save",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Process and Save": {
      "main": [
        [
          {
            "node": "Success Response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}