Splitmp3 API Orchestrated

The workflow JSON

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{
  "name": "splitMP3-API-Orchestrated",
  "nodes": [
    {
      "parameters": {
        "formTitle": "Universal MP3 Splitter (API Power)",
        "formDescription": "Communication via HTTP API. Location transparent.",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Upload MP3",
              "fieldType": "file",
              "requiredField": true
            },
            {
              "fieldLabel": "Segment Minutes",
              "defaultValue": 20,
              "fieldType": "number"
            }
          ]
        },
        "responseMode": "responseNode",
        "options": {}
      },
      "type": "n8n-nodes-base.formTrigger",
      "typeVersion": 2,
      "position": [
        0,
        0
      ],
      "id": "form-trigger",
      "name": "Form Trigger"
    },
    {
      "parameters": {
        "fileName": "=/home/node/.n8n-files/splitMP3/input/{{ $binary.data.fileName }}",
        "options": {
          "append": false
        }
      },
      "type": "n8n-nodes-base.writeBinaryFile",
      "typeVersion": 1,
      "position": [
        220,
        0
      ],
      "id": "write-input",
      "name": "Save Source MP3"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "=http://host.docker.internal:8000/split/info",
        "sendBody": true,
        "bodyParameters": {
          "parameters": [
            {
              "name": "input",
              "value": "=/mnt/c/Tools/@@@@@@Antigravity/n8n-projects/n8n-mcp-json/splitePDF/input/{{ $binary.data.fileName }}"
            }
          ]
        },
        "options": {
          "timeout": 300000
        }
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        440,
        0
      ],
      "id": "api-get-info",
      "name": "API: Get Info"
    },
    {
      "parameters": {
        "jsCode": "const info = $input.first().json;\nconst segmentMin = $node[\"Form Trigger\"].json[\"Segment Minutes\"] || 20;\nconst segmentMs = segmentMin * 60 * 1000;\nconst totalMs = info.duration_ms;\nconst numParts = Math.ceil(totalMs / segmentMs);\n\nconst tasks = [];\nfor (let i = 0; i < numParts; i++) {\n  tasks.push({\n    json: {\n      part: i + 1,\n      start: i * segmentMs,\n      end: Math.min((i + 1) * segmentMs, totalMs),\n      sourcePath: `/mnt/c/Tools/@@@@@@Antigravity/n8n-projects/n8n-mcp-json/splitePDF/input/${info.filename}`,\n      originalName: info.filename.split('.')[0]\n    }\n  });\n}\nreturn tasks;"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        660,
        0
      ],
      "id": "calc-segments",
      "name": "Generate Tasks"
    },
    {
      "parameters": {
        "method": "POST",
        "url": "=http://host.docker.internal:8000/split/mp3",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={\n  \"input_path\": \"{{ $json.sourcePath }}\",\n  \"output_path\": \"/mnt/c/Tools/@@@@@@Antigravity/n8n-projects/n8n-mcp-json/splitePDF/output/{{ $json.originalName }}/{{ $json.originalName }}_Part_{{ $json.part }}.mp3\",\n  \"start\": {{ $json.start }},\n  \"end\": {{ $json.end }},\n  \"title\": \"{{ $json.originalName }} (Part {{ $json.part }})\"\n}",
        "options": {
          "timeout": 300000
        }
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        880,
        0
      ],
      "id": "api-split",
      "name": "API: Atomic Split"
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={\n  \"status\": \"success\",\n  \"total_processed\": {{ $input.all().length }},\n  \"message\": \"All segments processed via Worker API!\"\n}",
        "options": {}
      },
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.1,
      "position": [
        1100,
        0
      ],
      "id": "done",
      "name": "Final Respond"
    }
  ],
  "connections": {
    "Form Trigger": {
      "main": [
        [
          {
            "node": "Save Source MP3",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Save Source MP3": {
      "main": [
        [
          {
            "node": "API: Get Info",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "API: Get Info": {
      "main": [
        [
          {
            "node": "Generate Tasks",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Generate Tasks": {
      "main": [
        [
          {
            "node": "API: Atomic Split",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "API: Atomic Split": {
      "main": [
        [
          {
            "node": "Final Respond",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "tags": []
}

About this workflow

splitMP3-API-Orchestrated. Uses formTrigger, writeBinaryFile, httpRequest. Event-driven trigger; 6 nodes.

Source: https://github.com/MorrisLu-Taipei/TigerAI-A2A-Code2n8n-Skill-Pack/blob/5417647cddf7868cc10e32eacc7fdfdacd68ea4b/examples/tigerai-flagship/splitMP3-API-Orchestrated/workflow.json — original creator credit. Request a take-down →

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