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Understanding TCP Connections in Elixir Applications
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Source: andrealeopardi.com
The content describes how to establish and manage TCP connections within Elixir applications, emphasizing the platform's network capabilities due to its Erlang heritage. Andrea Leopardi explains the usage of the :gen_tcp module to handle TCP client connections, as well as detailing message sending and receiving. A step-by-step guide to building a basic Redis driver in Elixir demonstrates the concepts, showing how to establish a connection in the GenServer's init/1 callback and send Redis commands through the socket. Leopardi further explores typical TCP errors and solutions, leveraging the :inet.setopts/2 function and the Connection library to better handle connection errors with backoff strategies. The article concludes with suggestions on using pooling libraries, like poolboy, to manage multiple instances of the GenServer for efficient resource utilization.
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