{
  "name": "Vector Centroid API",
  "tags": [],
  "nodes": [
    {
      "id": "32a8aa56-aa7e-4c9e-a39e-f65234224bcf",
      "name": "Receive Vectors",
      "type": "n8n-nodes-base.webhook",
      "position": [
        -440,
        20
      ],
      "parameters": {
        "httpMethod": "GET",
        "path": "vector-centroid-api",
        "responseMode": "responseNode",
        "options": {}
      },
      "notesInFlow": true,
      "typeVersion": 2
    },
    {
      "id": "a020a49a-cc9f-49af-aa95-829d9d16da04",
      "name": "Extract & Parse Vectors",
      "type": "n8n-nodes-base.code",
      "position": [
        360,
        20
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "const parse = function vectorRequest({ query }) {\n  if (typeof query.vectors !== 'string' || !query.vectors) return { vectors: null, error: 'Invalid input: Expected an array of vectors.' };\n  try {\n    let nonFinite = false;\n    const vectors = JSON.parse(query.vectors, (_key, value) => {\n      if (typeof value === 'number' && !Number.isFinite(value)) nonFinite = true;\n      return value;\n    });\n    if (nonFinite) return { vectors: null, error: 'Vectors must contain finite numbers.' };\n    return { vectors, error: null };\n  }\n  catch { return { vectors: null, error: 'Invalid input: vectors must be valid JSON.' }; }\n}\n\nreturn {json:parse({query:$json.query})};"
      },
      "typeVersion": 2
    },
    {
      "id": "2f328de6-4ef1-4aac-8838-d616637f4b88",
      "name": "Validate & Compute Centroid",
      "type": "n8n-nodes-base.code",
      "position": [
        960,
        20
      ],
      "parameters": {
        "mode": "runOnceForEachItem",
        "jsCode": "const calculate = function vectorCentroid({ vectors, error }) {\n  const fail = (error) => ({ result: { error } });\n  if (error) return fail(error);\n  if (!Array.isArray(vectors) || vectors.length === 0) return fail('Invalid input: Expected an array of vectors.');\n  if (!vectors.every(Array.isArray)) return fail('Each vector must be an array.');\n  const dimension = vectors[0].length;\n  if (!vectors.every((vector) => vector.length === dimension)) return fail('Vectors have inconsistent dimensions.');\n  if (!vectors.every((vector) => vector.every((value) => typeof value === 'number' && Number.isFinite(value)))) return fail('Vectors must contain finite numbers.');\n  const centroid = Array.from({ length: dimension }, (_, index) => {\n    let scale = 0;\n    for (const vector of vectors) scale = Math.max(scale, Math.abs(vector[index]));\n    if (scale === 0) return 0;\n    let sum = 0, correction = 0;\n    for (const vector of vectors) {\n      const adjusted = vector[index] / scale - correction;\n      const next = sum + adjusted;\n      correction = (next - sum) - adjusted;\n      sum = next;\n    }\n    return (sum / vectors.length) * scale;\n  });\n  if (!centroid.every(Number.isFinite)) return fail('Centroid exceeds the finite numeric range.');\n  return { result: { centroid } };\n}\n\nreturn {json:calculate($json).result};"
      },
      "typeVersion": 2
    },
    {
      "id": "821bc173-3578-4cf2-9fd7-8ea9cba8dc3f",
      "name": "Return Centroid Response",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        1640,
        20
      ],
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ $json }}",
        "options": {
          "responseCode": 200
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "73964e7b-1217-422f-8078-09604fa2a3d7",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        20,
        -200
      ],
      "parameters": {
        "color": 3,
        "width": 620,
        "height": 420,
        "content": "## Vector Centroid API\nGET the configured webhook URL with vectors as a URL-encoded JSON array of equal-length finite numeric arrays. Responds with centroid or error as JSON, HTTP 200. See README for an example request."
      },
      "typeVersion": 1
    },
    {
      "id": "e4793b20-bfa6-4b08-b46c-f92d1c9c2622",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        640,
        -280
      ],
      "parameters": {
        "color": 4,
        "width": 700,
        "height": 500,
        "content": "## Vector Centroid API\nGET the configured webhook URL with vectors as a URL-encoded JSON array of equal-length finite numeric arrays. Responds with centroid or error as JSON, HTTP 200. See README for an example request."
      },
      "typeVersion": 1
    },
    {
      "id": "e0ac1c4d-0435-44d1-ba87-0cfc9dea207b",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1340,
        -200
      ],
      "parameters": {
        "color": 2,
        "width": 680,
        "height": 420,
        "content": "## Vector Centroid API\nGET the configured webhook URL with vectors as a URL-encoded JSON array of equal-length finite numeric arrays. Responds with centroid or error as JSON, HTTP 200. See README for an example request."
      },
      "typeVersion": 1
    },
    {
      "id": "2b4fbae7-c2e5-4666-ba9f-72a5313fc16f",
      "name": "Sticky Note4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -820,
        -200
      ],
      "parameters": {
        "color": 4,
        "width": 840,
        "height": 420,
        "content": "## Vector Centroid API\nGET the configured webhook URL with vectors as a URL-encoded JSON array of equal-length finite numeric arrays. Responds with centroid or error as JSON, HTTP 200. See README for an example request."
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "pinData": {},
  "settings": {
    "executionOrder": "v1"
  },
  "connections": {
    "Receive Vectors": {
      "main": [
        [
          {
            "node": "Extract & Parse Vectors",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract & Parse Vectors": {
      "main": [
        [
          {
            "node": "Validate & Compute Centroid",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Validate & Compute Centroid": {
      "main": [
        [
          {
            "node": "Return Centroid Response",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}