🔍 Code Extractor

Prints formatted examples of HTTP headers required for different types of file uploads to a reMarkable cloud sync service, including PDFs, metadata, content, and schema files.

Purpose

This function serves as a documentation/reference tool that displays the correct HTTP header structure for various upload operations to the reMarkable cloud service. It demonstrates the required headers for six different upload types: PDF content, document metadata, document content, document schema, root schema, and root hash. Each example includes Content-Type, batch number, filename, sync ID, and Google hash headers. This is useful for developers implementing reMarkable cloud sync functionality or debugging upload issues.

Source Code

def generate_header_examples():
    """Generate example headers for different upload types"""
    
    print(f"\n🏷️  Header Examples for Different Upload Types")
    print("=" * 60)
    
    # Example document UUID
    doc_uuid = "cf2a3833-4a8f-4004-ab8d-8dc3c5f561bc"
    
    examples = [
        {
            "type": "PDF Content Upload",
            "headers": {
                "Content-Type": "application/pdf",
                "rm-batch-number": "1",
                "rm-filename": f"{doc_uuid}.pdf",
                "rm-sync-id": "da7c79cc-e019-419e-b990-5bc739dc3921",
                "x-goog-hash": "crc32c=4pBwYg=="
            }
        },
        {
            "type": "Document Metadata Upload", 
            "headers": {
                "Content-Type": "application/octet-stream",
                "rm-batch-number": "1",
                "rm-filename": f"{doc_uuid}.metadata",
                "rm-sync-id": "da7c79cc-e019-419e-b990-5bc739dc3921",
                "x-goog-hash": "crc32c=NwmicA=="
            }
        },
        {
            "type": "Document Content Upload",
            "headers": {
                "Content-Type": "application/octet-stream", 
                "rm-batch-number": "1",
                "rm-filename": f"{doc_uuid}.content",
                "rm-sync-id": "da7c79cc-e019-419e-b990-5bc739dc3921",
                "x-goog-hash": "crc32c=Ly5hZQ=="
            }
        },
        {
            "type": "Document Schema Upload",
            "headers": {
                "Content-Type": "text/plain; charset=UTF-8",
                "rm-batch-number": "1", 
                "rm-filename": f"{doc_uuid}.docSchema",
                "rm-sync-id": "da7c79cc-e019-419e-b990-5bc739dc3921",
                "x-goog-hash": "crc32c=XYj3oQ=="
            }
        },
        {
            "type": "Root Schema Upload",
            "headers": {
                "Content-Type": "text/plain; charset=UTF-8",
                "rm-batch-number": "1",
                "rm-filename": "root.docSchema", 
                "rm-sync-id": "da7c79cc-e019-419e-b990-5bc739dc3921",
                "x-goog-hash": "crc32c=someHash"
            }
        },
        {
            "type": "Root Hash Upload",
            "headers": {
                "Content-Type": "application/octet-stream",
                "rm-batch-number": "1",
                "rm-filename": "roothash",
                "rm-sync-id": "da7c79cc-e019-419e-b990-5bc739dc3921", 
                "x-goog-hash": "crc32c=anotherHash"
            }
        }
    ]
    
    for example in examples:
        print(f"\n📤 {example['type']}:")
        for header, value in example['headers'].items():
            print(f"   {header}: {value}")

Return Value

This function returns None (implicitly). It produces side effects by printing formatted header examples to stdout. The output includes a title banner, followed by six sections, each showing a different upload type with its corresponding HTTP headers formatted as key-value pairs.

Usage Example

# Simple usage - just call the function to display header examples
generate_header_examples()

# Output will be printed to console showing:
# - PDF Content Upload headers
# - Document Metadata Upload headers
# - Document Content Upload headers
# - Document Schema Upload headers
# - Root Schema Upload headers
# - Root Hash Upload headers

# This function is typically used for reference/documentation purposes
# when implementing reMarkable cloud sync API calls

Best Practices

• This function is primarily for documentation and reference purposes, not for production use
• The doc_uuid and rm-sync-id values are hardcoded examples and should be replaced with actual UUIDs in real implementations
• The x-goog-hash values are example CRC32C checksums and must be calculated for actual file uploads
• The rm-batch-number header indicates the batch sequence number for synchronization
• Content-Type headers vary by file type: application/pdf for PDFs, application/octet-stream for binary files, and text/plain for schema files
• File extensions (.pdf, .metadata, .content, .docSchema) in rm-filename are significant and indicate the upload type
• This function has no side effects beyond printing to stdout, making it safe to call for reference

Tags

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