Gmail Subscription Email Automation

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 →

{
  "name": "SubsCrypt Workflow",
  "nodes": [
    {
      "parameters": {
        "resource": "message",
        "operation": "get",
        "messageId": "={{ $json.id }}",
        "additionalFields": {
          "format": "raw"
        }
      },
      "name": "Gmail",
      "type": "n8n-nodes-base.gmail",
      "typeVersion": 1,
      "position": [
        160,
        -120
      ],
      "id": "199186d1-fe37-43af-b423-6b6b5f6c55cd",
      "credentials": {
        "gmailOAuth2": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "pollTimes": {
          "item": [
            {
              "mode": "everyMinute"
            }
          ]
        },
        "filters": {}
      },
      "type": "n8n-nodes-base.gmailTrigger",
      "typeVersion": 1.2,
      "position": [
        -300,
        -80
      ],
      "id": "eaf3ee18-3016-477f-96cf-945fe2de9e49",
      "name": "Gmail Trigger",
      "credentials": {
        "gmailOAuth2": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "const base64Data = $input.first().json.raw; // raw base64 email\n\n// We DON'T decode to UTF-8 here, we just repackage the raw base64\n// because .eml files are expected to be in base64 in the binary output\nreturn [\n  {\n    binary: {\n      data: {\n        data: base64Data, // still base64-encoded\n        fileName: 'email.eml',\n        mimeType: 'message/rfc822', // correct MIME type\n      },\n    },\n  },\n];"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        360,
        -80
      ],
      "id": "66cc5907-8d30-48e3-a61d-27d628fc6199",
      "name": "Code1"
    },
    {
      "parameters": {
        "operation": "write",
        "fileName": "=/home/fer/Hackathon/SubsCrypt/automations/{{ $('Gmail').item.json.id }}.eml ",
        "options": {}
      },
      "type": "n8n-nodes-base.readWriteFile",
      "typeVersion": 1,
      "position": [
        560,
        -80
      ],
      "id": "e6be66a8-b6a2-4fe6-841e-6f93848ad9cc",
      "name": "Read/Write Files from Disk"
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 2
          },
          "conditions": [
            {
              "id": "899dfe1a-d62e-4d0e-9026-27a273f68f45",
              "leftValue": "={{ $json.Subject }}",
              "rightValue": "Authorization for Subscription Payment \u2013 SubsCrypt",
              "operator": {
                "type": "string",
                "operation": "equals",
                "name": "filter.operator.equals"
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        -80,
        -80
      ],
      "id": "b0893fa1-3514-46ec-adfa-d07b02d0934a",
      "name": "If"
    }
  ],
  "connections": {
    "Gmail": {
      "main": [
        [
          {
            "node": "Code1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Gmail Trigger": {
      "main": [
        [
          {
            "node": "If",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Code1": {
      "main": [
        [
          {
            "node": "Read/Write Files from Disk",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "If": {
      "main": [
        [
          {
            "node": "Gmail",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "bfe97521-0b87-4c43-a23d-51ccae40d539",
  "meta": {
    "templateCredsSetupCompleted": true
  },
  "id": "G6EWUkpk1n36LrUt",
  "tags": []
}

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.

• gmailOAuth2

About this workflow

SubsCrypt Workflow. Uses gmail, gmailTrigger, readWriteFile. Event-driven trigger; 5 nodes.

Source: https://github.com/GianfrancoBazzani/SubsCrypt/blob/00b83f8850adc82928500a1aa9112d5dc64c94fa/automations/SubsCrypt_Workflow.json — original creator credit. Request a take-down →

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