LoggerJsonFileBackend
LoggerJsonFileBackend is elixir logger backend that writes json logs to a file.
Configuration
This logger backend provides follow options:
| name | description |
|---|---|
| path | log file path. this option is "MUST" |
| level | minimum logging level. default is :info
|
| metadata | included metadata keys list. detault is empty list |
| metadata_triming | if false, ignoring previous metadata options and all metadata are output. default is true. It is recommended true in production environment. |
| json_encoder | using json encoder. default poison |
| uuid | If true, add uuid field to record. Default is false. |
You need to add logger backend setting
config :logger,
backends: [{LoggerJSONFileBackend, :log_name}]
config :logger, :log_name,
path: "/var/log/my_app/app.log",
level: :info,
metadata: [:request_id, :user_id, :method, :path, :req_params],
json_encoder: JSON, # or Poison
uuid: true
Use case
This module is assumed to be used with a custom plug logger.
Logger.info("request", [
method: conn.method,
path: conn.request_path,
req_params: conn.params,
])
