Modeling a complex service is a time-consuming process that may require many rounds of fine-tuning. In this lesson, we’ll discuss how we can achieve the non-functional requirements, especially real-time communication, and estimate the response time of our proposed Zoom meeting API.

Non-functional requirements

Let's discuss the non-functional requirements for our Zoom API one by one:

Availability and reliability

We ensure the availability of our services by dividing servers according to different roles. For example, the meeting service handles requests to create, update, add participants, and so on, while the media controller handles client requests for managing meeting sessions. By adopting a role-based style, we can separate different workflows. In the event of a failure, if one service goes down, the other can still run normally, making our system resilient to complete outages. Additionally, services and data are replicated across different geological regions to avoid single points of failure (SPOF). We also have API monitoring and circuit breakers to identify and handle bad situations as quickly as possible. We limit concurrent meeting requests based on the account type for efficient resource management. For free users, we also limit the maximum time for a meeting to avoid the overloading of servers.

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