Choose Between REST, WebSocket, and Server-Sent Events for an Agent Runtime
Last updated: August 13, 2026
Quick Overview
The question asks the candidate to choose between REST, WebSocket, and Server-Sent Events (SSE) for implementing an AI Agent Runtime, explaining their reasoning for the choice.
ByteDance
August 13, 20260
0
13 solved
The question asks the candidate to choose between REST, WebSocket, and Server-Sent Events (SSE) for implementing an AI Agent Runtime, explaining their reasoning for the choice.
This question is typically asked during the technical screening round to assess a candidate's understanding of web protocols and their ability to make informed architectural decisions. The interviewer is evaluating the candidate's knowledge of different communication methods, their advantages and disadvantages, and how these methods fit into a real-world application scenario like an AI Agent Runtime.
What the Interviewer Expects
- Explain the characteristics of REST, WebSocket, and SSE.
- Discuss the advantages and disadvantages of each option.
- Provide a clear rationale for the chosen technology based on specific use cases.
- Consider scalability, performance, and real-time requirements in the decision.
- Demonstrate an understanding of how the chosen method integrates with existing systems.
Key Topics to Cover
How to Approach This
- Apply SOLID principles. Single Responsibility makes code testable, Open/Closed makes it extensible.
- Choose data structures based on access patterns, not familiarity.
- Prefer immutable data and message passing over shared mutable state for concurrency.
- Design APIs with RESTful conventions, versioning, meaningful errors, and pagination from day one.
Possible Follow-up Questions
- Can you explain a scenario where REST would be more suitable than WebSocket?
- What are the performance implications of using WebSocket over REST?
- How would you handle error management in your chosen approach?
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Practice System Design ProblemsSample Answer
Requirements
To choose between REST, WebSocket, and Server-Sent Events for an AI Agent Runtime, we first need to understand the requirements of the system. The AI Agent Runtime may need to handle real-time data up...
High-Level Design
- REST: RESTful APIs are stateless and suitable for CRUD operations. They are easy to cache and scale but may not be ideal for real-time data updates.
- WebSocket: This protocol allows for f...
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