{ "id": "g3q68zSOQvTcydLs", "meta": { "instanceId": "92786e96ce436aecd3a1d62d818a74e51ca684bb36c805928bef93a3b46549ad" }, "name": "Calculate the Centroid of a Set of Vectors", "tags": [], "nodes": [ { "id": "32a8aa56-aa7e-4c9e-a39e-f65234224bcf", "name": "Receive Vectors", "type": "n8n-nodes-base.webhook", "position": [ -440, 20 ], "webhookId": "30091e91-fc67-4bab-b1fd-ed65c8f4f860", "parameters": { "path": "centroid", "options": {}, "responseMode": "responseNode" }, "notesInFlow": true, "typeVersion": 2 }, { "id": "a020a49a-cc9f-49af-aa95-829d9d16da04", "name": "Extract & Parse Vectors", "type": "n8n-nodes-base.set", "position": [ 360, 20 ], "parameters": { "options": {}, "assignments": { "assignments": [ { "id": "3e1d9e72-7668-427d-958c-42bff7270a37", "name": "vectors", "type": "array", "value": "={{ $json.query.vectors }}" } ] } }, "typeVersion": 3.4 }, { "id": "2f328de6-4ef1-4aac-8838-d616637f4b88", "name": "Validate & Compute Centroid", "type": "n8n-nodes-base.code", "position": [ 960, 20 ], "parameters": { "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 } }];" }, "typeVersion": 2 }, { "id": "821bc173-3578-4cf2-9fd7-8ea9cba8dc3f", "name": "Return Centroid Response", "type": "n8n-nodes-base.respondToWebhook", "position": [ 1640, 20 ], "parameters": { "options": {} }, "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": "šŸ“Œ **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\nšŸ”¹ **Expected Output Example:**\n```json\n{\n \"vectors\": [[2,3,4],[4,5,6],[6,7,8]]\n}\n```\n" }, "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": "šŸ“Œ **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\nšŸ”¹ **Successful Output Example:**\n```json\n{\n \"centroid\": [4,5,6]\n}\n```\nšŸ”¹ **Error Output Example:**\n```json\n{\n \"error\": \"Vectors have inconsistent dimensions.\"\n}\n```\n" }, "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": "šŸ“Œ **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\nšŸ”¹ **Example Response:**\n```json\n{\n \"centroid\": [4, 5, 6]\n}\n```\n" }, "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": "šŸ“Œ **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 } ], "active": true, "pinData": { "Receive Vectors": [ { "json": { "body": {}, "query": { "vectors": "[[2,3,4],[4,5,6],[6,7,8]]" }, "params": {}, "headers": { "host": "actions.singular-innovation.com", "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "cookie": "rl_page_init_referrer=RudderEncrypt%3AU2FsdGVkX1%2FNTT5WOkcYG%2FWSKmLWL%2F6W9TAbYFEQv8s%3D; 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