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Why is API Testing Important? Manual API Testing Manual testing involves a human tester executing API requests and verifying the responses. It’s particularly useful for exploratory testing and scenarios where the API is still under development. Steps for Manual API Testing Tools for Manual API Testing Example of Manual Testing with curl: # Sending a … Read more
Why Is API Performance Important? Techniques for API Performance Optimization 1. Reduce Payload Size Minimizing the size of data transmitted between the client and the server reduces latency and bandwidth usage. Example: // Include only necessary fields in the responseapp.get(‘/users’, (req, res) => { const users = database.getUsers(); // Example database query const simplifiedUsers = … Read more
What Is an API Gateway? An API Gateway is a server or service that acts as a centralized entry point for all client requests to your APIs. It simplifies communication between clients and services by handling tasks such as routing, load balancing, rate limiting, security, and monitoring. How It Works Key Features of API Gateways … Read more
Real-time APIs enable continuous communication between a client and a server, allowing instant updates without the need for the client to repeatedly request data. WebSockets is one of the most widely used protocols for real-time communication. It establishes a persistent, bidirectional connection between the client and server, making it ideal for applications that require real-time … Read more
API versioning is the practice of managing changes in an API over time while maintaining compatibility for existing clients. It allows developers to introduce new features or improvements without breaking existing applications that rely on older versions. Versioning is crucial for ensuring a seamless developer experience and maintaining the stability of the API ecosystem. Why … Read more
What Are Microservices? Microservices are small, independent services that perform a single, well-defined function. Unlike monolithic architectures, where all components are tightly integrated, microservices are loosely coupled and can be developed, deployed, and scaled independently. Role of APIs in Microservices APIs (Application Programming Interfaces) are the glue that connects microservices. They allow microservices to communicate … Read more
What is API Caching? API caching involves temporarily storing the response to an API request so that subsequent requests for the same data can be served quickly without hitting the underlying server or database. This process reduces server processing time and bandwidth usage while ensuring faster responses for the client. Why is Caching Important in … Read more
What is API Authentication? API authentication is the process of verifying the identity of the client or user attempting to access the API. It’s necessary to ensure that only authorized users can interact with the API’s resources. Authentication can involve different methods, including username and password, API keys, OAuth, JWT, and OpenID Connect. While simple … Read more
What is GraphQL? GraphQL is a query language for APIs developed by Facebook in 2012 and released as an open-source project in 2015. It allows clients to specify the structure of the response they need, minimizing the over-fetching or under-fetching of data, a common issue with traditional REST APIs. At its core, GraphQL provides a … Read more
Why API Security is Important APIs are the backbone of many modern applications. They allow developers to connect services, share data, and build scalable systems. However, APIs are also vulnerable to attacks. Unauthorized access, data breaches, and malicious exploitation are common risks if API security is not properly implemented. API security involves protecting the integrity, … Read more