Skip to main content
Invoice Supporting Document Upload API
curl --request POST \
  --url https://api.pazy.io/v1.0/invoice/:invoiceId/supporting-documents

Documentation Index

Fetch the complete documentation index at: https://docs.pazy.io/llms.txt

Use this file to discover all available pages before exploring further.

​
Authentication

All requests require an API key in the request headers. Headers: 
Authorization: Api-Key YOUR_API_KEY
Content-Type: multipart/form-data

​
Request

Content-Type: multipart/form-data

​
Path Parameters

ParameterTypeRequiredDescription
invoiceIdstringYesUnique identifier of the invoice to attach documents to

​
Form Fields

FieldTypeRequiredDescription
filesfileYesThe file(s) to upload. Repeat the field name to upload multiple files in a single request. Max file size 50 MB per file.

​
Code Examples

curl -X POST https://api.pazy.io/v1.0/invoice/<invoiceId>/supporting-documents \
  -H "Authorization: Api-Key YOUR_API_KEY" \
  -F "files=@/path/to/receipt.pdf"

​
Success Response

HTTP Status: 200 OK Response Fields:
FieldTypeDescription
okbooleanIndicates whether the request was successful
insertbooleanIndicates that the documents were inserted against the invoice
contextobjectContainer for upload metadata
context.fileUploadednumberNumber of files that were successfully uploaded in this request

​
Response Example

{
  "ok": true,
  "insert": true,
  "context": {
    "fileUploaded": 1
  }
}

​
Error Responses

​
Missing File

HTTP Status: 400 Bad Request 
{
  "ok": false,
  "error": {
    "code": "MISSING_REQUIRED_FIELD",
    "message": "Files field is required"
  }
}

​
Invoice Not Found

HTTP Status: 404 Not Found 
{
  "ok": false,
  "error": {
    "code": "INVOICE_NOT_FOUND",
    "message": "Invoice not found"
  }
}

​
Access Denied

HTTP Status: 403 Forbidden 
{
  "ok": false,
  "error": {
    "code": "ACCESS_DENIED",
    "message": "Access denied: You can only view your own invoices or invoices where you are the vendor owner"
  }
}
Returned when the caller is not an admin / bookkeeper, did not create the invoice, and is not the owner of its vendor.

​
Authentication Errors

HTTP Status: 401 Unauthorized 
{
  "ok": false,
  "error": {
    "code": "MISSING_CREDENTIALS",
    "message": "Missing Credentials"
  }
}

{
  "ok": false,
  "error": {
    "code": "INVALID_API_KEY",
    "message": "Invalid API Key"
  }
}

​
Permission Errors

HTTP Status: 403 Forbidden 
{
  "ok": false,
  "error": {
    "code": "INSUFFICIENT_PERMISSIONS",
    "message": "Permission check failed - PERMISSION_CHECK_FAILED"
  }
}

​
Internal Error

HTTP Status: 500 Internal Server Error 
{
  "ok": false,
  "error": {
    "code": "INTERNAL_ERROR",
    "message": "Internal error"
  }
}

​
Best Practices

  • Repeat the files field name to upload multiple documents in a single call — they are saved as separate supporting documents
  • Use the Invoice Supporting Documents API to list the documents already attached to an invoice
  • Each file is capped at 50 MB; split larger files before uploading
  • Supporting documents are stored separately from the original invoice file uploaded via the Invoice Creation API