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The A/B Testing Experiment Activation API is a crucial component of Sophra’s experimentation framework, enabling dynamic activation of A/B tests within the system. This Next.js API route, implemented as a serverless function, serves as the interface for transitioning experiments from a dormant state to an active one, allowing for real-time control over the experimentation process. Integrated deeply with Sophra’s core systems, this API leverages the Prisma ORM for database interactions, ensuring type-safe and efficient data operations. The component’s architecture is designed to be stateless, aligning with the microservices paradigm of the Sophra ecosystem. This design choice facilitates horizontal scaling and enhances system resilience. Key architectural decisions include the use of Zod for request validation, providing a robust type-checking mechanism that enhances API reliability. The implementation also incorporates comprehensive error handling and logging, utilizing Sophra’s centralized logging infrastructure to maintain observability across the distributed system. Performance considerations are addressed through the use of database indexing on the experiment ID field, optimizing query execution times. The API is designed to be lightweight, with minimal processing overhead, ensuring rapid response times even under high load conditions. A unique feature of this component is its ability to prevent redundant activations, maintaining data integrity by checking the current experiment status before processing the activation request. This safeguard is crucial in a distributed environment where race conditions could potentially lead to inconsistent states.

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Exported Components

export const runtime = "nodejs";

export async function POST(req: NextRequest): Promise<NextResponse>
The POST function is the primary export, handling incoming HTTP POST requests to activate experiments. It returns a Promise<NextResponse>, encapsulating the API’s response.

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Implementation Examples

// Activating an experiment
const response = await fetch('/api/nous/ab-testing/experiments/activate', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ experimentId: 'exp_123456' }),
});

const result = await response.json();
if (result.success) {
  console.log('Experiment activated:', result.data);
} else {
  console.error('Activation failed:', result.error);
}
This example demonstrates how to interact with the API from a client-side application within the Sophra ecosystem.

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Sophra Integration Details

The activation API integrates with several Sophra components:
  1. Database Service: Utilizes Prisma client for database operations.
  2. Logging Service: Employs the centralized logger for error and info logging.
  3. Authentication Service: (Implied) Expects requests to be pre-authenticated.

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Error Handling

The API implements comprehensive error handling:
  • Invalid request format
  • Missing required fields
  • Incorrect data types
  • Experiment not found
  • Database connection issues
  • Concurrent modification conflicts
  • Attempt to activate an already active experiment
  • Unexpected exceptions
  • Integration failures with other services
All errors are logged using the centralized logging system, facilitating debugging and system monitoring.

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Performance Considerations

Optimization Strategies

  • Database indexing on experimentId for fast lookups
  • Minimal data retrieval, fetching only necessary fields
  • Stateless design for horizontal scalability

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Security Implementation

While not explicitly implemented in this file, the API is expected to be protected by:
  • JWT-based authentication middleware
  • Role-based access control for experiment activation
  • Input sanitization via Zod schema validation

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Configuration

POSTGRESQL_URL="postgresql://user:password@localhost:5432/sophra_db"
LOG_LEVEL="info"
These environment variables are crucial for configuring the database connection and logging behavior of the activation API.
Ensure that the POSTGRESQL_URL is properly set and the database is accessible before deploying this API to production environments.
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