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Caching can be essential piece of keeping your application fast. In this episode we’ll look how we can using caching to reduce the number of database queries in an existing Elixir application.
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In this episode we’ll build a chat application that has multiple chat rooms. The rooms will be created dynamically from the URL and will use Phoenix Channels to provide realtime functionality.
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In part 2 we’ll update our application to allow users to add cryptocurrencies from the UI. Once added, we’ll display the cryptocurrency and update pricing every minute using a GenServer.
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In part one of this series we’ll lay the foundation for our application. First we’ll see how we can fetch cryptocurrency prices. Then we’ll create a GenServer to store the prices and add it to our supervision tree.
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