Secure File Upload to MinIO via Webhook

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "active": true,
  "connections": {
    "PresignedPutObject bucket": {
      "main": [
        [
          {
            "node": "\u4e0a\u4f20\u81f3Minio",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "\u4e0a\u4f20\u81f3Minio": {
      "main": [
        [
          {
            "node": "PresignedGetObject object",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "PresignedGetObject object": {
      "main": [
        [
          {
            "node": "HTTP Request",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Webhook": {
      "main": [
        [
          {
            "node": "PresignedPutObject bucket",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "HTTP Request": {
      "main": [
        [
          {
            "node": "Respond to Webhook",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "createdAt": "2025-08-26T09:09:35.473Z",
  "id": "XcpTsX5iKY4tslS2",
  "isArchived": false,
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "name": "FE-BE",
  "nodes": [
    {
      "parameters": {
        "method": "POST",
        "url": "http://192.168.209.111:3000/v1/chat/completions",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "Bearer sk-vincentzou_token"
            }
          ]
        },
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={\n  \"model\": \"qwen2.5vl:3b\",\n  \"messages\": [\n    {\n      \"role\": \"user\",\n      \"content\": [\n        {\n          \"type\": \"text\",\n          \"text\": \"\u56fe\u7247\u4e2d\u7684\u5185\u5bb9\u662f\u4ec0\u4e48\uff1f\"\n        },\n        {\n          \"type\": \"image_url\",\n          \"image_url\": {\n            \"url\": \"{{ $json.url }}\"\n          }\n        }\n      ]\n    }\n  ],\n  \"max_tokens\": 200\n} ",
        "options": {
          "redirect": {
            "redirect": {}
          }
        }
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1168,
        -144
      ],
      "id": "cd6fea3b-3b05-40a4-90c6-e86bccc7b5fd",
      "name": "HTTP Request"
    },
    {
      "parameters": {
        "resource": "bucket",
        "operation": "presignedPutObject",
        "bucket": {
          "__rl": true,
          "value": "n8n",
          "mode": "list",
          "cachedResultName": "n8n"
        },
        "key": "={{ $json.body.filename }}"
      },
      "type": "n8n-nodes-minio.minioNode",
      "typeVersion": 1,
      "position": [
        496,
        -144
      ],
      "id": "ac002367-3ffb-4a86-bd15-568e97647cbb",
      "name": "PresignedPutObject bucket",
      "credentials": {
        "minioCredentialsApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "method": "PUT",
        "url": "={{ $json.url }}",
        "sendBody": true,
        "contentType": "binaryData",
        "inputDataFieldName": "image",
        "options": {}
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        720,
        -144
      ],
      "id": "51c8ea8f-f6df-407a-8526-96649ebcec99",
      "name": "\u4e0a\u4f20\u81f3Minio"
    },
    {
      "parameters": {
        "bucket": {
          "__rl": true,
          "value": "n8n",
          "mode": "list",
          "cachedResultName": "n8n"
        },
        "key": "={{ $('Webhook').item.json.body.filename }}"
      },
      "type": "n8n-nodes-minio.minioNode",
      "typeVersion": 1,
      "position": [
        944,
        -144
      ],
      "id": "2da6a4f0-ff0c-44ba-8369-f6bf2e30c1ef",
      "name": "PresignedGetObject object",
      "credentials": {
        "minioCredentialsApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "2d702057-bbeb-476c-85ca-021b17efb9df",
        "responseMode": "responseNode",
        "options": {}
      },
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2.1,
      "position": [
        272,
        -144
      ],
      "id": "ea0bf963-3c93-4b63-9f0a-2dc23cf3dbb3",
      "name": "Webhook"
    },
    {
      "parameters": {
        "respondWith": "text",
        "responseBody": "={{ $json.choices[0].message.content }}",
        "options": {}
      },
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.4,
      "position": [
        1376,
        -144
      ],
      "id": "cf5bf7d5-9268-433f-a136-cc0399efcc67",
      "name": "Respond to Webhook"
    }
  ],
  "settings": {
    "executionOrder": "v1"
  },
  "shared": [
    {
      "updatedAt": "2025-08-26T09:09:35.473Z",
      "createdAt": "2025-08-26T09:09:35.473Z",
      "role": "workflow:owner",
      "workflowId": "XcpTsX5iKY4tslS2",
      "projectId": "AjKOXkiVfZaaIF4c"
    }
  ],
  "staticData": null,
  "tags": [],
  "triggerCount": 1,
  "updatedAt": "2025-09-24T13:34:44.897Z",
  "versionId": "9f4fb999-5050-40dd-8729-bedbf58f4e96"
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• minioCredentialsApi

About this workflow

FE-BE. Uses httpRequest, n8n-nodes-minio. Webhook trigger; 6 nodes.

Source: https://github.com/blueskyxi3/n8n-workflow-backup/blob/e2e3b1f6b712f7cebb4c0c51bc926500c65bf1f3/workflows/FE-BE.json — original creator credit. Request a take-down →

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