Examples
Elixir Logging Setup
Setting Up Logging
Elixir logging setup with Logger logs requests and errors.
Introduction to Elixir Logger
Elixir's Logger is a built-in library used for logging messages in your application. It helps in tracking requests and errors, which is crucial for debugging and monitoring your application's health. This guide covers how to set up and configure Logger in an Elixir application, using practical examples.
Setting Up Logger in Elixir
To start using Logger, ensure it's included in your application's dependencies. It is typically included in new Elixir projects by default. You'll find it in your mix.exs file:
Basic Logger Configuration
Logger can be configured in the config/config.exs file. Here's a basic configuration example:
Logging Requests and Errors
To log requests and errors, you can use different Logger functions such as Logger.debug/1, Logger.info/1, Logger.warn/1, and Logger.error/1. Here's how you can log a simple request and an error:
Using Logger with Metadata
Adding metadata to your logs can provide more context about the log messages. You can set metadata like request_id or user_id to track logs related to specific requests or users:
Conclusion
Setting up logging in Elixir using the Logger module is straightforward and provides essential capabilities for monitoring and debugging your application. By configuring Logger properly and using it effectively, you can gain valuable insights into your application's behavior and performance.
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