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Cypress Schema Validator
Lightweight Cypress plugin for API schema validation. It leverages both the AJV validator (for plain JSON schemas, Swagger documents, and OpenAPI schemas) and the Zod validator (for Zod schemas).
Cypress Schema Validator is a custom Cypress plugin designed to automate API response validation. By reading local JSON Schema definitions, it automatically validates API payloads during integration runs, logging structural errors.
Key Features of Cypress Schema Validator
- JSON Schema Assertions: Assert that API response bodies conform strictly to local schema files (
cy.validateSchema(response, schema)). - Structural Error Reporting: Logs exactly which properties, types, or arrays failed validation inside the Cypress log dashboard.
- Draft-07 Compliance: Fully supports draft-07 JSON Schema validation parameters and guidelines.
- Asynchronous Execution: Integrates directly into the Cypress promise queue without blocking page workflows.
Benefits of Using Cypress Schema Validator
- Protect Client Apps: Catch API format changes that could crash web apps before they hit production environments.
- Eliminate Brittle Checks: Replace dozens of manual property checks with a single schema validation line.
- Detailed Failure Info: Clear console reports pinpoint exactly why a payload does not match, speeding up fixes.
To prevent API regressions, Cypress Schema Validator allows Cypress testers to validate server responses against OpenAPI schemas in real-time.
Tags:
CypressOpen Source