Let’s say your company’s product is a mobile app that gets its data from an internal JSON API. The API, built using Rails, is a few years old. Response objects are large, request latency is high, and your data indicates mobile users aren’t converting because of it.
It can be tempting to immediately dig into your code and look for N+1 queries to refactor. But if you have the time and bandwidth, try to view this as a great opportunity to take a step back and rethink the high-level requirements for your JSON API. Starting with a conversation about the desired functionality of each endpoint will help keep your team’s efforts focused on delivering no more than is required by the client, as efficiently as possible.
Grab your team for a whiteboarding session and review your assumptions about the behavior of each API endpoint…Read more at the source