Krakend Validator

The Krakend Validator analyzes Krakend API gateway configurations in JSON or YAML to confirm structural correctness and runtime compatibility. It validates required fields (version, name, port) and each endpoint's definition (path, method, required headers, and backend mapping). It enforces field types, value ranges, and mutual exclusivity of options, catching syntax errors and semantic mismatches before deployment. The tool outputs a structured report suitable for developers, SREs, and CI pipelines, enabling deterministic behavior in API routing.

Conceptually, the validator parses the input, normalizes formats, and applies a Krakend-specific schema. It performs cross-field checks such as ensuring every route with a backend has a corresponding backend configuration, validating timeouts, caching, and middlewares. Optional dynamic checks can simulate route resolution against a mock environment to detect connectivity issues without making real requests. The tool is designed to be CI-friendly, returning machine-readable results useful for automated gates.

Benefits include earlier defect discovery, reduced deployment rollbacks, and faster iteration for complex gateway configurations. By exporting a detailed list of errors with field paths and remediation suggestions, teams can triage fixes efficiently. Unique differentiators include Krakend-version aware rules, back-end alias validation, and integrated guidance for environment-specific overrides, making it suitable for local development, staging validation, and production readiness checks.

Core features and use cases include static schema validation, endpoint and backend consistency checks, detection of duplicate routes, support for both YAML and JSON inputs, and structured, machine-readable outputs that can feed into CI dashboards. Use cases span pre-commit checks in development workstations, pull-request validation, and pre-deployment gates in CI/CD pipelines. The tool emphasizes non-invasive validation, avoiding runtime calls unless explicitly requested, to guarantee safe feedback during configuration.