Best Practices for APIs Designing.

Bavatharany Mahathevan
2 min readMay 1, 2024

In web Application development, REST API plays a vital role, allowing the systems to communicate over the internet with each other services and/or clients. The REST APIs are built with a set of rules and practices to ensure smooth communication between clients and servers.

When building a REST API, following best practices ensures that the API is well-designed, easy to use, and maintainable. Here are some key best practices.

  • Select a descriptive URL that reflects the entity it represents and choose a noun form for the resource’s name instead of a verb form. Generally, the resource name can be plural unless a single value is expected.
  • Select the correct HTTP methods.
  • Use correct HTTP Status codes.
  • Add the version in the REST URL. [https://localhose:8080/rest-service/v1/users/{id}]. This practice allows clients to explicitly specify which version of the API they intend to use, ensuring that changes or updates to the API do not disrupt existing client implementations.
  • Choose an appropriate format (json/xml) for the response and use meaning full and consistency for naming each field of the response data.
  • Handle errors gracefully and provide meaningful error messages to help developers troubleshoot issues.
  • Document the build API. Provide comprehensive documentation for the API, including usage examples, endpoints, request/response formats, and authentication methods. Use the Swagger open source tool for an example to create such a document.
  • Use Authentication and Authorization. Secure the API by providing credentials and developing authorization mechanisms to limit resource access.

Reference:

https://www.sitepoint.com/rest-api/

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