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Refactor a Promise Chain to Function Composition using Ramda


Promise chains can be a powerful way to handle a series of transformations to the results of an async call. In some cases, additional promises are required along the way. In cases where there are no new promises, function composition can reduce the number of dot chained thens you need. In this lesson, we'll look at how to take a promise chain, and reduce it down with function composition.

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