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Starting a New Service

In a rapidly growing engineering organization, it can be difficult to keep track of all the efforts underway. This kind of growth demands a process to prevent duplicating work across teams. At Uber, we have solved this problem by requiring that authors of new services submit a Request for Comments (RFC), a high-level proposal of the new service that outlines its purpose, architecture, dependencies, and

other implementation details for the rest of Uber Engineering to discuss. The RFC serves two purposes: 1) to solicit feedback for improving the service’s quality as it’s developed and 2) to prevent duplicate efforts or expose opportunities for collaboration.
Tincup, our currency and exchange rate service, is a great example of how a microservice at Uber is implemented. Tincup is the interface for up-to-date currency and exchange rate data.