For safe and predictable API operation, it is necessary to strictly control what data is received and returned. We implement support for JSON Schema, a formal description of the data structure that allows you to automatically validate requests and responses on the server and client side.
JSON Schema helps to identify errors during the integration phase, eliminate unstable behavior, ensure compatibility between systems and increase the reliability of interaction with the API.
What JSON Schema gives
| Opportunity | What provides |
|---|---|
| Structure check | Make sure the object matches the expected fields and types |
| Required fields | Critical Attribute Control |
| Typification | Clear check of numbers, strings, boolean and arrays |
| Constraints and formats | Support for minimum/maximum length, enum, pattern, email format, etc. |
| Reuse | Create templates and reusable components |
How validation works
1. The request or response is compared with a predefined scheme
2. If there are deviations, the API returns an error with an explanation
3. Schemas can be merged, inherited, conditional rules can be used
4. Applicable at any level: query, body, headers, query parameters
Benefits for APIs and Clients
Protection against incorrect and malicious data- Improve integration stability and predictability of behavior
- Automatic Testing and Generation of Circuit-Based Moks
- Ability to use schemas in documentation and Swagger/OpenAPI
- Simplifies API support and scaling
Where especially relevant
Platforms with external integrations and partner API- Mobile and frontend applications waiting for a clear response structure
- CI/CD pipelines with automatic API testing
- Systems with dynamically changing parameters and contracts
JSON Schema is a fundamental technology for strict and reliable API operation. It makes your data validated, integration secure, and development predictable.
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