The workflow JSON

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{
  "name": "RAG - Consulta via Webhook",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "rag-query",
        "responseMode": "responseNode",
        "options": {}
      },
      "id": "webhook-trigger",
      "name": "Webhook - Recibir Pregunta",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        250,
        300
      ]
    },
    {
      "parameters": {
        "functionCode": "const body = $input.first().json.body;\n\nif (!body || !body.pregunta) {\n  return [{\n    json: {\n      error: true,\n      mensaje: 'El campo \"pregunta\" es requerido en el body del request'\n    }\n  }];\n}\n\nreturn [{\n  json: {\n    pregunta: body.pregunta,\n    top_k: body.top_k || 5,\n    temperature: body.temperature || 0.3\n  }\n}];"
      },
      "id": "validate-input",
      "name": "Validar entrada",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        470,
        300
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "http://api:8000/api/query",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={{ JSON.stringify({ pregunta: $json.pregunta, top_k: $json.top_k, temperature: $json.temperature }) }}",
        "options": {
          "timeout": 120000
        }
      },
      "id": "query-api",
      "name": "Consultar API RAG",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        690,
        300
      ]
    },
    {
      "parameters": {
        "functionCode": "const data = $input.first().json;\n\nreturn [{\n  json: {\n    respuesta: data.respuesta,\n    fuentes: (data.fuentes || []).map(f => ({\n      documento: f.documento,\n      fragmento: f.fragmento,\n      similitud: f.similitud,\n      pagina: f.pagina\n    })),\n    modelo: data.modelo_usado,\n    fragmentos_consultados: data.fragmentos_consultados,\n    timestamp: new Date().toISOString()\n  }\n}];"
      },
      "id": "format-response",
      "name": "Formatear respuesta",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        910,
        300
      ]
    },
    {
      "parameters": {
        "options": {
          "responseCode": 200
        }
      },
      "id": "respond-webhook",
      "name": "Responder al Webhook",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [
        1130,
        300
      ]
    }
  ],
  "connections": {
    "Webhook - Recibir Pregunta": {
      "main": [
        [
          {
            "node": "Validar entrada",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Validar entrada": {
      "main": [
        [
          {
            "node": "Consultar API RAG",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Consultar API RAG": {
      "main": [
        [
          {
            "node": "Formatear respuesta",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Formatear respuesta": {
      "main": [
        [
          {
            "node": "Responder al Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "tags": [
    {
      "name": "RAG",
      "id": "1"
    },
    {
      "name": "Consulta",
      "id": "3"
    }
  ]
}

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About this workflow

RAG - Consulta via Webhook. Uses httpRequest. Webhook trigger; 5 nodes.

Source: https://github.com/Mateo-R99/RAG-Empresarial/blob/b2405cf2b06cfd20a1430111aec6acfb93b8ffff/n8n/flujo_consulta.json — original creator credit. Request a take-down →

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