Cortex Document API Route

The Cortex Document API Route serves as a critical entry point for document ingestion and processing within the Sophra System. This Next.js API route, built on TypeScript, orchestrates a sophisticated pipeline for handling incoming document data, ensuring its proper validation, sanitization, and storage within Elasticsearch indices. The component leverages advanced queueing mechanisms, circuit breakers, and service abstractions to maintain high throughput and system resilience under varying load conditions.

At its core, this route implements a robust document processing workflow that begins with input sanitization to handle common JSON formatting issues, particularly around newline characters and quote inconsistencies. It then applies a strict validation schema using Zod, ensuring that incoming documents adhere to the expected structure before proceeding with indexing operations.

The architecture of this component reflects careful consideration of scalability and fault tolerance. By utilizing separate queues for index creation and document processing, it mitigates potential bottlenecks and allows for fine-grained control over resource allocation. The implementation of circuit breakers for Elasticsearch operations and synchronization services adds an additional layer of system protection, preventing cascading failures during high-stress scenarios.

Performance optimization is a key focus of this component. The use of JSON5 for parsing allows for more flexible input handling, while the custom sanitization logic ensures that even malformed requests can be processed efficiently. The component also implements intelligent index creation, checking for existing indices before attempting to create new ones, thus reducing unnecessary operations.

One of the unique features of this API route is its comprehensive error handling and detailed response structure. It provides rich, context-aware error messages that not only indicate the nature of the problem but also offer suggestions for resolution. This approach significantly enhances the developer experience and reduces debugging time for API consumers.

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Exported Components

export async function POST(req: NextRequest): Promise<NextResponse>

The primary export of this module is the POST function, which handles incoming HTTP POST requests for document ingestion. It accepts a NextRequest object and returns a Promise<NextResponse>.

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Key Parameters and Types

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Implementation Examples

const { index, document } = validationResult.data;
const tableName = index;

// Check if index exists and handle index creation through queue
const indexExists = await elasticsearchBreakers.index.execute(
  async () => await services.elasticsearch.indexExists(index)
);

if (!indexExists) {
  await indexQueue.add(async () => {
    await elasticsearchBreakers.index.execute(async () => {
      await services.elasticsearch.createIndex(index, {
        body: {
          settings: {
            number_of_shards: 1,
            number_of_replicas: 1,
          },
          mappings: DEFAULT_MAPPING,
        },
      });
    });
  });
}

// Queue document processing
const metadata = await documentQueue.add(async () => {
  return await syncBreaker.execute(async () => {
    return await services.sync.upsertDocument({
      index,
      id: crypto.randomUUID(),
      document: document as BaseDocument,
      tableName,
    });
  });
});

This example demonstrates the core document ingestion process, including index creation (if necessary) and document queueing for processing.

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Sophra Integration Details

The Cortex Document API Route integrates deeply with several Sophra core services:

1. Elasticsearch Service: Used for index management and document storage.
2. Sync Service: Handles document upsert operations and ensures data consistency.
3. Circuit Breaker: Provides fault tolerance for external service calls.
4. Operation Queue: Manages concurrent operations and prevents system overload.

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Error Handling

The component implements a sophisticated error handling strategy:

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Performance Considerations

1. Input Sanitization: Custom sanitization logic optimizes JSON parsing performance.
2. Queueing: Separate queues for index and document operations prevent bottlenecks.
3. Circuit Breakers: Prevent system overload during high-stress periods.
4. Caching: Index existence checks could be cached to reduce Elasticsearch queries.

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Security Implementation

1. Input Validation: Strict schema validation prevents injection attacks.
2. Sanitization: Custom sanitization logic removes potentially harmful characters.
3. Error Masking: Detailed errors are logged internally, while sanitized errors are returned to clients.

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Configuration

ELASTICSEARCH_URL="your-elasticsearch-url"
ELASTICSEARCH_API_KEY="your-elasticsearch-api-key"

These configurations can be adjusted based on system resources and expected load patterns to optimize performance and resilience.