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#98: OTP backed Web Application Part 1

Published July 31, 2019

In this series we’re going to build a web application with Phoenix that uses the OTP GenServer behaviour to store state. In part 1 we’ll start by creating our GenServer, adding it to our application’s supervision tree, and ensuring it’s working as intended.

The application we’ll build will fetch the price of a crytpocurrency and then update that price every minute. Let’s start by looking at how we can fetch the current price of a cryptocurrency…