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"name": "Calculate the Centroid of a Set of Vectors",
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"jsCode": "const input = items[0].json;\nconst vectors = input.vectors;\n\nif (!Array.isArray(vectors) || vectors.length === 0) {\n return [{ json: { error: \"Invalid input: Expected an array of vectors.\" } }];\n}\n\nconst dimension = vectors[0].length;\nif (!vectors.every(v => v.length === dimension)) {\n return [{ json: { error: \"Vectors have inconsistent dimensions.\" } }];\n}\n\nconst centroid = new Array(dimension).fill(0);\nvectors.forEach(vector => {\n vector.forEach((val, index) => {\n centroid[index] += val;\n });\n});\n\nfor (let i = 0; i < dimension; i++) {\n centroid[i] \/= vectors.length;\n}\n\nreturn [{ json: { centroid } }];"
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"name": "Return Centroid Response",
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"width": 620,
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"content": "\ud83d\udccc **Description:** \nThis node extracts the `vectors` array from the **GET request** and converts it into a properly formatted array for processing. \n- **Ensures `vectors` is a valid array.** \n- **If the parameter is missing, it may generate an error.** \n\n\ud83d\udd39 **Expected Output Example:**\n```json\n{\n \"vectors\": [[2,3,4],[4,5,6],[6,7,8]]\n}\n```\n"
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"parameters": {
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"width": 700,
"height": 500,
"content": "\ud83d\udccc **Description:** \nThis node performs **vector validation** and **centroid computation**. \n- **Validation:** Ensures all vectors have the same number of dimensions. \n- **Computation:** Averages each dimension to determine the centroid. \n- **If validation fails:** Returns an error message indicating inconsistent dimensions. \n\n\ud83d\udd39 **Successful Output Example:**\n```json\n{\n \"centroid\": [4,5,6]\n}\n```\n\ud83d\udd39 **Error Output Example:**\n```json\n{\n \"error\": \"Vectors have inconsistent dimensions.\"\n}\n```\n"
},
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},
{
"id": "e0ac1c4d-0435-44d1-ba87-0cfc9dea207b",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
1340,
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],
"parameters": {
"color": 2,
"width": 680,
"height": 420,
"content": "\ud83d\udccc **Description:** \nThis node sends the **final response** back to the client that made the request. \n- **If the computation is successful**, it returns the centroid. \n- **If an error occurs**, it returns a descriptive error message. \n\n\ud83d\udd39 **Example Response:**\n```json\n{\n \"centroid\": [4, 5, 6]\n}\n```\n"
},
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},
{
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"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
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],
"parameters": {
"color": 4,
"width": 840,
"height": 420,
"content": "\ud83d\udccc **Description:** \nThis node acts as the **entry point** for the workflow, receiving a **GET request** containing an array of vectors in the `vectors` parameter. \n- **Expected Input:** `vectors` parameter in JSON format. \n- **Example Request:** \n ```plaintext\n https:\/\/actions.singular-innovation.com\/webhook-test\/centroid?vectors=[[2,3,4],[4,5,6],[6,7,8]]\n ```\n- **Output:** Passes the received data to the next node for processing.\n"
},
"typeVersion": 1
}
],
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"pinData": {
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"body": [],
"query": {
"vectors": "[[2,3,4],[4,5,6],[6,7,8]]"
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}
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},
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}
