Monitoring Tesla Errors in Elixir Applications Using AppSignal

The article covers the essential features of the Tesla library for Elixir, emphasizing its simplicity and modularity in building HTTP clients. It highlights the inevitability of errors when working with external APIs and the importance of having a reliable error tracking system. AppSignal is introduced as a solution for monitoring and error tracking that works seamlessly with Elixir applications, particularly with Tesla. A practical example is provided by developing a simple weather forecasting application using Phoenix, illustrating the integration of Tesla and AppSignal. The article details the installation process, configuration, and the concept of composable middleware in Tesla, which is significant in capturing events for monitoring. It delves into instrumenting Tesla with AppSignal to better capture request details and errors, providing deeper insights into performance and error management. The article concludes with a summary of the lessons learned about implementing error tracking and performance profiling for Elixir apps.