View Source Tesla.Middleware.MetaLogger (MetaLogger v1.9.1)

Tesla middleware to log requests and responses.

You can pass the options to the middleware or to the Tesla.Env request. The Tesla env options take precedence over the middleware options.

Usage example

defmodule MyClient do
  use Tesla

  plug Tesla.Middleware.MetaLogger,
    filter_body: [{~r/"email":".*?"/, ~s("email":"[FILTERED]")}],
    filter_headers: ["authorization"],
    filter_query_params: [:api_key],
    log_level: :debug,
    log_tag: MyApp,
    max_entry_length: :infinity,
    slicer: MyCustomSlicer
end

Options

• :filter_headers - The headers that should not be logged, the values will be replaced with [FILTERED]. Defaults to: [].
• :filter_query_params - The query params that should not be logged, the values will be replaced with [FILTERED]. Defaults to: [].
• :filter_body - The request and response body patterns that should not be logged, each filter can be just a pattern, which will be replaced by "[FILTERED]", or it can be a tuple with the pattern and the replacement. Because the body filtering is applied to strings it is necessary that this middleware is the last one on the stack, so it receives the request body already encoded and the response body not yet decoded. If the body is not a string, the filtering will be skipped.
• :log_level - The log level to be used, defaults to: :info. Responses with HTTP status code 400 and above will be logged with :error, and redirect with :warning.
• :log_tag - The log tag to be prefixed in the logs. Any non-string value will be inspected as a string. Defaults to the current module name.
• :max_entry_length - The maximum length of a log entry before it is split into new ones. Defaults to :infinity.
• :slicer - The module implementing the MetaLogger.Slicer behaviour to be used for slicing log entries. Defaults to MetaLogger.Slicer.DefaultImpl.