create single new masked email address with fastmail

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      "position": [
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      "parameters": {
        "url": "https://api.fastmail.com/jmap/session",
        "options": {},
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth"
      },
      "credentials": {
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          "id": "BWkbkxgDD4hkRCvs",
          "name": "Fastmail Masked E-Mail Addresses"
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      "name": "create random masked email",
      "type": "n8n-nodes-base.httpRequest",
      "notes": "https://api.fastmail.com/.well-known/jmap\n\nhttps://api.fastmail.com/jmap/session",
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      "parameters": {
        "url": "https://api.fastmail.com/jmap/api/",
        "method": "POST",
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        "jsonBody": "={\n  \"using\": [\n    \"urn:ietf:params:jmap:core\",\n    \"https://www.fastmail.com/dev/maskedemail\"\n  ],\n  \"methodCalls\": [\n    [\n      \"MaskedEmail/set\",\n      {\n        \"accountId\": \"{{ $('Session').item.json.primaryAccounts['https://www.fastmail.com/dev/maskedemail'] }}\",\n        \"create\": {\n          \"maskedEmailId1\": {\n            \"description\": \"{{ $json.description }}\",\n            \"state\": \"{{ $json.state }}\"\n          }\n        }\n      },\n      \"c1\"\n    ]\n  ]\n}\n",
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      "credentials": {
        "httpHeaderAuth": {
          "id": "BWkbkxgDD4hkRCvs",
          "name": "Fastmail Masked E-Mail Addresses"
        }
      },
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        "content": "### Template Description\nThis n8n workflow template allows you to create a masked email address using the Fastmail API, triggered by a webhook. This is especially useful for generating disposable email addresses for privacy-conscious users or for testing purposes.\n\n#### Workflow Details:\n1. **Webhook Trigger**: The workflow is initiated by sending a POST request to a specific webhook. You can include `state` and `description` in your request body to customize the masked email's state and description.\n2. **Session Retrieval**: The workflow makes an HTTP request to the Fastmail API to retrieve session information. It uses this data to authenticate further requests.\n3. **Create Masked Email**: Using the retrieved session data, the workflow sends a POST request to Fastmail's JMAP API to create a masked email. It uses the provided state and description from the webhook payload.\n4. **Prepare Output**: Once the masked email is successfully created, the workflow extracts the email address and attaches the description for further processing.\n5. **Respond to Webhook**: Finally, the workflow responds to the original POST request with the newly created masked email and its description.\n\n#### Requirements:\n- **Fastmail API Access**: You will need valid API credentials for Fastmail configured with HTTP Header Authentication.\n- **Authorization Setup**: Optionally set up authorization if your webhook is exposed to the internet to prevent misuse.\n- **Custom Webhook Request**: Use a tool like `curl` or create a shortcut on macOS/iOS to send the POST request to the webhook with the necessary JSON payload, like so:\n  \n  ```bash\n  curl -X POST -H 'Content-Type: application/json' https://your-n8n-instance/webhook/87f9abd1-2c9b-4d1f-8c7f-2261f4698c3c -d '{\"state\": \"pending\", \"description\": \"my mega fancy masked email\"}'\n  ```\n\nThis template simplifies the process of integrating masked email functionality into your projects or workflows and can be extended for various use cases."
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              "value": "={{ $('Webhook').item.json.body.state ?? \"pending\" }}"
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              "id": "19a09822-7ae0-4884-9192-c6e5bc3393a8",
              "name": "email",
              "type": "string",
              "value": "={{ $json.methodResponses[0][1].created.maskedEmailId1.email }}"
            },
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      "webhookId": "87f9abd1-2c9b-4d1f-8c7f-2261f4698c3c",
      "parameters": {
        "path": "createMaskedEmail",
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