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How would you approach building a custom WordPress REST API endpoint, and what considerations should you keep in mind for security and performance?

To build a custom WordPress REST API endpoint, I would use the register_rest_route function to define the route and its callback. Important considerations include validating user permissions, sanitizing input data,…

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Can you explain how ACID properties in database transactions impact API design, particularly in a microservices architecture?

ACID properties—Atomicity, Consistency, Isolation, Durability—ensure reliable transactions, which are crucial in API design to maintain data integrity across microservices. By understanding these properties, we can design APIs that handle failures…

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When designing an API, how can you ensure that the responses are optimized for performance, particularly in terms of payload size?

To optimize API responses for performance, I would minimize the payload size by using techniques such as JSON data compression and only sending necessary fields. Additionally, implementing pagination for large…

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Can you explain how to design a RESTful API that interacts with a Dockerized application?

To design a RESTful API for a Dockerized application, I would start by defining the API endpoints that correlate with the application’s functionality. Then, I would use Docker to containerize…

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How would you design a RESTful API in C# to handle a large number of concurrent requests while ensuring data integrity and minimizing latency?

To design a RESTful API for high concurrency in C#, I would use asynchronous programming with async/await to free up threads during I/O operations. Implementing caching strategies and using a…

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Can you explain how you would design a RESTful API endpoint for a custom WordPress plugin that retrieves posts based on a specific category?

To design a RESTful API endpoint in a WordPress plugin, I would use the register_rest_route function to define the route. The endpoint could accept GET requests, and I’d implement a…

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Can you explain what a webhook is and how it differs from traditional polling methods in an event-driven architecture?

A webhook is a user-defined HTTP callback that is triggered by specific events in a system. Unlike traditional polling, which repeatedly checks for changes at set intervals, webhooks push data…

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How would you design an API to support a natural language processing service that performs sentiment analysis on user reviews?

I would design a RESTful API with endpoints for submitting text, retrieving analysis results, and managing user profiles. The API would accept JSON payloads with the text data and additional…

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What are some techniques you can use to reduce the load time of an API response in a web application?

To reduce the load time of an API response, you can implement response caching, minimize payload size by filtering unnecessary data, and use compression techniques. Additionally, optimizing database queries can…

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Can you explain how to design an API endpoint that handles concurrent requests safely, especially when modifying shared resources?

To design a safe API for concurrent requests, I would implement locking mechanisms to prevent race conditions. This might involve using mutexes or semaphores if the API is stateful, or…

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Can you describe a situation where you had to design an API authentication system using OAuth or JWT, and how you addressed potential security vulnerabilities?

In a recent project, I designed an API authentication system using JWT. I prioritized securing token storage and implemented token expiration to mitigate replay attacks, while ensuring proper scope and…

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How would you approach designing a TypeScript API that interacts with a relational database, ensuring type safety and data integrity throughout the process?

I would define clear TypeScript interfaces that represent the data models and use an ORM like TypeORM or Sequelize to enforce these types during database interactions. Additionally, I would implement…

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