https://github.com/kobil-systems/lager_iowrite_formatter

Lager formatter that adds support for custom format specifiers to the metadata.
https://github.com/kobil-systems/lager_iowrite_formatter

erlang lager logging

Last synced: 2 days ago
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Lager formatter that adds support for custom format specifiers to the metadata.

• Host: GitHub
• URL: https://github.com/kobil-systems/lager_iowrite_formatter
• Owner: kobil-systems
• License: apache-2.0
• Created: 2020-01-13T18:56:29.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2020-11-12T22:33:18.000Z (about 4 years ago)
• Last Synced: 2024-11-30T18:47:03.280Z (about 1 month ago)
• Topics: erlang, lager, logging
• Language: Erlang
• Homepage:
• Size: 17.6 KB
• Stars: 5
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
lager_iowrite_formatter

=====

![GitHub Workflow Status](https://img.shields.io/github/workflow/status/kobil-systems/lager_iowrite_formatter/Erlang%20CI?style=flat-square)

Lager formatter that adds support for custom format specifiers to the metadata.

It is especially useful when you want to format numbers in different format.

Usage

-----

Add to `rebar.config`:

```erlang

{deps, [lager_iowrite_formatter]}.

```

And then in `sys.config` you can use:

```erlang

{lager, [

  {handlers, [

    {lager_file_backend, [{file, "error.log"}, {level, error}, {formatter, lager_iowrite_formatter},

      {formatter_config, [date, " ", time, {"~.16B", trace_id, "undefined"}," [",severity,"] ",pid, " ", message, "\n"]}]}

  ]}

]}.

```

That will print `trace_id` metadata attribute using hexadecimal format if value

is present.