n8n-nodes-zapsign

This is an n8n community node that lets you use ZapSign's digital signature API in your n8n workflows.

ZapSign is a digital signature platform that enables you to create, send, and manage legally binding electronic signatures for your documents.

n8n is a fair-code licensed workflow automation platform.

Installation

Follow the installation guide in the n8n community nodes documentation.

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1. Go to Settings > Community Nodes.
2. Select Install.
3. Enter n8n-nodes-zapsign in Enter npm package name.
4. Agree to the risks of using community nodes.
5. Select Install.

After installing the node, you can use it like any other node in n8n.

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To get started install the package in your n8n root directory:

``bash
npm install n8n-nodes-zapsign
`

For Docker-based deployments add the following line before the font installation command in your n8n Dockerfile:

`dockerfile
RUN cd /usr/local/lib/node_modules/n8n && npm install n8n-nodes-zapsign
`

Credentials

You'll need to set up ZapSign API credentials to use this node:

1. Sign up for a ZapSign account
2. Go to your ZapSign dashboard
3. Navigate to API settings and generate an API key
4. In n8n, create new ZapSign API credentials with:
- API Key: Your ZapSign API key
- Environment: Choose between Production or Sandbox

Environment Variables (optional)

You can override the default API base URLs using a .env file:

`bash
ZAPSIGN_API_BASE_URL=https://api.zapsign.com.br
ZAPSIGN_API_BASE_URL_SANDBOX=https://sandbox.api.zapsign.com.br
`

These are optional; by default the production and sandbox endpoints above are used.

Operations

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The ZapSign node supports the following resources and operations:

#### Document
- Create: Upload and create a new document
- File Upload: Upload a file from binary data
- Base64: Provide file content as base64 string
- Public Link: Provide a public URL to the file
- Get: Retrieve document details
- Get All: List all documents
- Send: Send document for signature
- Cancel: Cancel a document
- Download: Download a signed document

#### Signer
- Add: Add a signer to a document
- Get All: Get all signers of a document
- Remove: Remove a signer from a document
- Update: Update signer information

#### Template
- Get All: List all available templates
- Create Document From Template: Create a new document from a template

#### Webhook
- Create: Create a webhook for event notifications
- Get All: List all webhooks
- Delete: Delete a webhook

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The ZapSign Trigger node allows you to start workflows when ZapSign events occur:

#### Supported Events
- Document Created: When a document is created
- Document Sent: When a document is sent for signature
- Document Viewed: When a document is viewed by a signer
- Document Signed: When a document is signed by any signer
- Document Completed: When all signers have signed the document
- Document Cancelled: When a document is cancelled
- Document Expired: When a document expires
- Signer Added: When a signer is added to a document
- Signer Signed: When a specific signer signs
- Signer Declined: When a signer declines to sign

Example Workflows

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1. HTTP Request: Receive document upload request
2. ZapSign: Create document with uploaded file
3. ZapSign: Add signers to the document
4. ZapSign: Send document for signature
5. ZapSign Trigger: Wait for document completion
6. Email: Send notification when document is signed

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1. Schedule Trigger: Run daily
2. Google Sheets: Get contract data
3. ZapSign: Create document from template
4. ZapSign: Add signers from spreadsheet
5. ZapSign: Send for signature
6. Slack: Notify team

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1. ZapSign Trigger: Listen for document events
2. Switch: Route based on event type
3. Database: Update document status
4. Email: Send appropriate notifications

File Input Types for Document Creation

The ZapSign node now supports multiple ways to provide files for document creation:

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- Use when you have a file uploaded through n8n's binary data system
- Supports any file type that ZapSign accepts
- Automatically detects filename and MIME type

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- Use when you have file content as a base64 string
- Requires specifying the filename and MIME type manually
- Useful for files generated programmatically or stored as base64

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- Use when the file is publicly accessible via a URL
- Automatically downloads the file from the URL
- Attempts to detect filename and MIME type from the URL
- Supports common file formats: PDF, DOC, DOCX, XLS, XLSX, PPT, PPTX, TXT, RTF, images (JPG, PNG, GIF, BMP, TIFF), HTML, XML, JSON

Authentication Methods

ZapSign supports multiple authentication methods for signers:

- Email: Simple email verification
- SMS: SMS code verification
- WhatsApp: WhatsApp code verification

Additional security features:
- Document Authentication: Require ID document upload
- Facial Recognition: Verify identity through facial recognition
- Biometric GOV+: Government database validation (Brazil)

API Endpoints Structure

The node assumes the following ZapSign API structure:

`
Base URL: https://api.zapsign.com.br/ (Production)
https://sandbox.api.zapsign.com.br/ (Sandbox)

Documents:
- POST /v1/documents - Create document
- GET /v1/documents - List documents
- GET /v1/documents/{id} - Get document
- POST /v1/documents/{id}/send - Send document
- POST /v1/documents/{id}/cancel - Cancel document
- GET /v1/documents/{id}/download - Download document

Signers:
- POST /v1/documents/{id}/signers - Add signer
- GET /v1/documents/{id}/signers - List signers
- PUT /v1/documents/{id}/signers/{email} - Update signer
- DELETE /v1/documents/{id}/signers/{email} - Remove signer

Templates:
- GET /v1/templates - List templates
- POST /v1/documents/from-template - Create from template

Webhooks:
- POST /v1/webhooks - Create webhook
- GET /v1/webhooks - List webhooks
- DELETE /v1/webhooks/{id} - Delete webhook
`

Error Handling

The node includes comprehensive error handling:

- Authentication errors: Invalid API key or expired tokens
- Rate limiting: Automatic retry with exponential backoff
- Validation errors: Missing required fields or invalid data
- Network errors: Connection timeouts and retries

All errors are properly formatted and include helpful context for debugging.

Compatibility

- n8n v0.187.0 and above
- Node.js v18.10 and above

Resources

- n8n community nodes documentation
- ZapSign API Documentation
- ZapSign Website

Support

For support with this community node:

1. Check the ZapSign API documentation
2. Review the n8n community forum
3. Open an issue on this repository

For ZapSign-specific questions, contact ZapSign support at support@zapsign.co

License

MIT

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Changelog

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- Updated "List Documents" operation to fully match ZapSign API specification
- Implements ZapSign API endpoint GET /api/v1/docs/?page={page}
- Added comprehensive filtering options:
- Page navigation: Page-based pagination (25 documents per page)
- Folder filtering: Filter by folder path (e.g., "/" for root, "/api/pasta2/" for specific folder)
- Deletion status: Filter deleted vs non-deleted documents
- Document status: Filter by pending, signed, or refused status
- Date range: Filter by creation date (YYYY-MM-DD format)
- Sort order: Ascending, descending, or default sorting
- API returns paginated response with count, next/previous links, and results array
- Response includes temporary file URLs (60-minute expiration) for original_file and signed_file
- Cache duration: 60 minutes as per API documentation
- Supports all query parameters: folder_path, deleted, status, created_from, created_to, sort_order
- Fixed: Resolved circular dependency issue with displayOptions that was causing "Max iterations reached" error in n8n
- Fixed: Removed displayOptions from child parameters in collections to prevent circular dependency issues
- Fixed: Corrected TypeScript formatting and indentation issues

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- Added "Reorder Documents in Envelope" operation to Document resource
- Implements ZapSign API endpoint PUT /api/v1/docs/{doc_token}/document-display-order/
- Allows reordering documents within an envelope while it's still in progress
- Supports multiple document tokens in the desired display order
- Only works on envelope documents (documents that group multiple files)
- Requires document to be in "em andamento" (in progress) status
- Fixed API endpoint to match official documentation exactly

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- Added "Update Document" operation to Document resource
- Implements ZapSign API endpoint PUT /api/v1/docs/{doc_token}/
- Allows updating document data while document is still in progress (not finalized or cancelled)
- Supports updating: document name, signature deadline, folder path, folder token
- Supports renaming extra documents via extra_docs[] array
- Only works on documents with "em andamento" (in progress) status
- Fixed API endpoint to match official documentation exactly

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- Updated Get Document operation to match exact ZapSign API specification
- Changed endpoint from /api/v1/docs/{id} to /api/v1/docs/{id}/ (with trailing slash)
- API now returns comprehensive document information including:
- Basic document details (ID, status, name, timestamps)
- File URLs (original_file, signed_file with 60-minute expiration)
- Complete signer information with authentication and signature status
- Extra documents array with metadata
- Template variables (answers array for dynamic templates)
- Branding settings and metadata (external_id, folder_path, lang, created_by)
- Fixed API endpoint to match official documentation exactly

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- Added "Add Extra Document" operation to Document resource
- Implements ZapSign API endpoint /api/v1/docs/{doc_principal_token}/upload-extra-doc/
- Supports both URL and Base64 input methods for extra documents
- Extra documents inherit all settings from the main document
- Maximum of 14 extra documents per main document (API limitation)
- Only PDF files up to 10MB are supported for extra documents

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- Updated Create Document From Template operation to match exact ZapSign API specification
- Changed endpoint from /api/v1/docs/from-template to /api/v1/models/create-doc/
- Added comprehensive template parameters: signer info, template variables, branding, WhatsApp automation
- Added support for template data replacement with data[] array format
- Added advanced options: folder management, signature ordering, signer permissions
- Fixed parameter names to match API documentation exactly

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- Added OneClick (ClickWrap) document creation operation
- Added OneClick-specific settings (signature drawing, custom consent text, redirect)
- OneClick documents are simplified for consent capture with minimal configuration
- Maintains compatibility with all file input types (File Upload, Base64, Public Link)
- Added oneclick: true` flag for OneClick document identification

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- Fixed document creation to match exact ZapSign API specification
- Changed from form-data to JSON request format
- Updated API endpoints to use correct paths (/api/v1/docs/)
- Added proper parameter names (base64_pdf, url_pdf, base64_docx, url_docx)
- Added required signers array parameter
- Added comprehensive signer configuration options
- Added proper additional fields matching API documentation
- Fixed authentication and request structure issues

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- Added support for multiple file input types in document creation:
- Base64 encoding for file content
- Public URL for file downloads
- Enhanced file upload with better MIME type detection
- Improved error handling for file processing
- Added comprehensive MIME type support for common file formats

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- Added support for multiple file input types in document creation:
- Base64 encoding for file content
- Public URL for file downloads
- Enhanced file upload with better MIME type detection
- Improved error handling for file processing
- Added comprehensive MIME type support for common file formats

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- Corrigido formato de autenticação: alterado de 'Authorization: Bearer' para 'apikey'

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- Corrigido endpoint de teste para o caminho correto da API ZapSign: /api/v1/docs/?page=1

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- Corrigido endpoint de teste para autenticação

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- Initial release
- Support for Document, Signer, Template, and Webhook operations
- ZapSign Trigger node for webhook events
- Complete authentication and error handling
- Support for both Production and Sandbox environments