{"id":15285797,"url":"https://github.com/silviucpp/betterstack_logger","last_synced_at":"2025-10-14T05:36:56.986Z","repository":{"id":257802678,"uuid":"863938469","full_name":"silviucpp/betterstack_logger","owner":"silviucpp","description":"OTP logger backend that sends log events to BetterStack 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betterstack_logger\n\n[![Build Status](https://app.travis-ci.com/silviucpp/betterstack_logger.svg?branch=main)](https://travis-ci.com/github/silviucpp/betterstack_logger)\n[![GitHub](https://img.shields.io/github/license/silviucpp/betterstack_logger)](https://github.com/silviucpp/betterstack_logger/blob/main/LICENSE)\n[![Hex.pm](https://img.shields.io/hexpm/v/betterstack_logger)](https://hex.pm/packages/betterstack_logger)\n\nOTP [logger][1] backend that sends log events to [BetterStack Logs][2].\n\n## Quick start\n\nAdd to your `rebar.config`\n\n```erlang\n{deps, [betterstack_logger]}.\n```\n\nadd the logger handler settings to your `sys.config`\n\n```erlang\n{betterstack_logger, [\n    {logger,\n        [\n            {handler, betterstack_logs, betterstack_logger, #{\n                level =\u003e info,\n                config =\u003e #{\n                    http_pool_options =\u003e [\n                        {timeout, 15000},\n                        {max_connections, 10}\n                    ],\n\n                    betterstack_host =\u003e \u003c\u003c\"HOST_HERE\"\u003e\u003e,\n                    betterstack_source_token =\u003e \u003c\u003c\"SOURCE_TOKEN_HERE\"\u003e\u003e,\n                    extra_fields =\u003e [\n                      {\u003c\u003c\"_env\"\u003e\u003e, \u003c\u003c\"prod\"\u003e\u003e}\n                    ],\n                    upload_batch_max_size =\u003e 50,\n                    upload_batch_inteval_ms =\u003e 5000,\n                    upload_failed_retry_count =\u003e 3,\n                    upload_failed_retry_delay_ms =\u003e 1000\n                },\n                formatter =\u003e {\n                    logger_formatter, #{\n                        single_line =\u003e true,\n                        template =\u003e [pid, \" \", mfa,\":\",line, \" =\u003e \", msg],\n                        time_offset =\u003e \"Z\"\n                    }\n                },\n                filters =\u003e [\n                    %{remote_group_leader, {fun logger_filters:remote_gl/2, stop}},\n                    %{progress, {fun logger_filters:progress/2, stop}},\n                    %{sasl, {fun logger_filters:domain/2, {stop, sub, [otp, sasl]}}}\n                ]\n            }}\n        ]}\n]}\n```\n\nOr you can add it via logger API from your code:\n\n```erlang\nlogger:add_handler(my_handler, betterstack_logs, #{...}).\n```\n\n**Note:** It's not currently possible to set `betterstack_logger` as `default` handler via `sys.config` (or add the handler there directly under the `kernel` app),\nbecause `sys.config` is applied at `kernel` application start time and `betterstack_logger` application depends on `kernel` application (cyclic dependency). \n\n## Config properties\n\n| Property               | Mandatory | Description                                                                                                                                                                                          |\n| --------------------- |:---------:|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| http_pool_options      |           | [hackney][3] pool config.                                                                                                                                                                            |\n|betterstack_host|     Y     | BetterStack Ingesting host.                                                                                                                                                                                    |\n|betterstack_source_token|     Y     | BetterStack Source Token used for authentication.                                                                                                                                                    |\n|extra_fields|           | Extra fields to be added to the message event.                                                                                                                                                       |                                                                                                                                                       |\n| upload_batch_max_size |           | *Default: 50*. The events are sent in batches. A batch is sent when is reaching the `upload_batch_max_size` size or a number of `upload_batch_inteval_ms` ms elapsed.                                |\n| upload_batch_inteval_ms|           | *Default: 5000*. Number of milliseconds we can wait for events to accumulate. A batch is sent when is reaching the `upload_batch_max_size` size or a number of `upload_batch_inteval_ms` ms elapsed. |\n| upload_failed_retry_count |           | *Default: 3*. In case a batch sending operation failed, how many times we retry to resubmit.                                                                                                         |\n| upload_failed_retry_delay_ms|           | *Default: 1000*. The delay between resubmitting failed batches.                                                                                                                                      |\n\n- Beside this custom settings, all other standard `logger:handler_config()` properties are accepted (`level`, `filters`, `formatter`).\n- Multiple instances of `betterstack_logger` handler can be started. \n\n[1]:https://www.erlang.org/doc/apps/kernel/logger_chapter.html\n[2]:https://logs.betterstack.com\n[3]:https://github.com/benoitc/hackney\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsilviucpp%2Fbetterstack_logger","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsilviucpp%2Fbetterstack_logger","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsilviucpp%2Fbetterstack_logger/lists"}