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Data Validation Service (Python)

This document describes the FastAPI application serving as a microservice for data validation.

Overview​

This FastAPI application provides an API to validate data using Great Expectations. It's a placeholder service that demonstrates how a data validation service could be integrated into the ChainAlign ecosystem.

Key Functionalities Exposed:

  • Receiving data and a set of expectations.
  • Returning a validation result.

Technology Stack:

  • FastAPI: For creating the web server and API endpoints.
  • Great Expectations: The core library for data validation.

API Endpoints​

POST /validate​

Receives data and a set of expectations and returns a validation result.

Request Body:

{
    "data": [],
    "expectations": {}
}

Responses:

  • 200 OK: A JSON object with the validation result.
  • 422 Unprocessable Entity: If the request body is invalid.