<\/span><\/h2>\n\n\n\nWhat is the basic structure of a REST API request?<\/h3>\n\n\n\n
A REST API request consists of an HTTP method (GET\/POST\/PUT\/DELETE), endpoint URL, headers for metadata, and sometimes a request body containing data in JSON format.<\/p>\n\n\n\n
How do REST APIs handle authentication?<\/h3>\n\n\n\n
REST APIs typically use token-based authentication (JWT\/OAuth), API keys, or session-based authentication to verify user identity and authorize access to protected resources.<\/p>\n\n\n\n
What status codes should REST APIs return?<\/h3>\n\n\n\n
REST APIs should return appropriate HTTP status codes – 200s for success, 400s for client errors, 500s for server errors – to indicate the outcome of requests.<\/p>\n\n\n\n
Why are REST APIs considered stateless?<\/h3>\n\n\n\n
REST APIs are stateless because each request contains all information needed for processing, without relying on server-stored session data, improving scalability and reliability.<\/p>\n\n\n\n
Can REST APIs support real-time communication?<\/h3>\n\n\n\n
While REST APIs aren’t designed for real-time communication, they can implement polling or be complemented with WebSockets for applications requiring immediate data updates.<\/p>\n\n\n\n
What’s the difference between PUT and PATCH methods?<\/h3>\n\n\n\n
PUT completely replaces a resource with new data, while PATCH applies partial modifications to existing resources, making PATCH more efficient for small updates.<\/p>\n\n\n\n
How can REST APIs be versioned effectively?<\/h3>\n\n\n\n
REST APIs can be versioned through URL paths (\/v1\/resources), custom headers (API-Version), query parameters (?version=1), or content negotiation to maintain compatibility.<\/p>\n\n\n\n
Are REST APIs secure for financial transactions?<\/h3>\n\n\n\n
REST APIs can be secure for financial transactions when implementing HTTPS, proper authentication, authorization, input validation, and following security best practices.<\/p>\n\n\n\n
What tools are recommended for testing REST APIs?<\/h3>\n\n\n\n
Popular REST API testing tools include Postman, Swagger, cURL, REST Assured for Java, and automated testing frameworks that validate endpoints and responses.<\/p>\n\n\n\n
How do REST APIs handle pagination for large datasets?<\/h3>\n\n\n\n
REST APIs handle pagination using query parameters (limit\/offset or page\/size), returning partial results with metadata indicating total count and links to next\/previous pages.<\/p>\n","protected":false},"excerpt":{"rendered":"
The demand for seamless data exchange between software systems is growing rapidly in today’s digital world. Whether you’re accessing social media on your smartphone, checking the weather forecast, or making …
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