New subject: [ruby-talk:444231] Re: [ANN] tobox 0.4.0 released

19 May 2023

The first version of tobox (v0.4.0) has been released.

tobox implements the consumer side of the transactional outbox pattern,
providing a simple way to configure your event handlers.

* https://gitlab.com/honeyryderchuck/tobox
* https://microservices.io/patterns/data/transactional-outbox.html

tobox executes your handlers in a worker pool. The worker pool can be
thread-based (default) or fiber-based.

It uses the “SKIP LOCKED” SQL dialect to support concurrent polling for
events from the database outbox table.

It ships with plugins for sentry, datadog and zeitwerk. The plugin system
is itself very simple, so you can add your own custom logic around event
processing.

It can be used as a background job processor, although it’s best used in
tandem with an existing framework.

Here are the updates since the last release:

## [0.4.0] - 2023-05-19

### Features

#### `:stats` plugin

The `:stats` plugin collects statistics related with the outbox table
periodically, and exposes them to app code (which can then relay them to a
statsD collector, or similar tool).

```ruby
plugin(:stats)
on_stats(5) do |stats_collector| # every 5 seconds
  stats = stats_collector.collect
  StatsD.gauge('outbox_pending_backlog', stats[:pending_count])
end
```

Read more about it in [the project README](
https://gitlab.com/os85/tobox#stats).

#### on_start/on_stop callbacks

The `on_start` and `on_stop` callbacks can now be defined in `tobox`
configuration:

```ruby
# tobox.rb
on_start do
  puts "tobox is starting..."
end
on_stop do
  puts "tobox is stopping..."
end
```

### Bugfixes

* tobox configuration file is now only loaded after everything else, so
access to application code is guaranteed.

## [0.3.2] - 2023-03-06

### Bugfixes

* allow sentry error capture if `report_after_retries` option is turned off.

## [0.3.1] - 2023-03-03

### Bugfixes

In Sentry plugin, exception capturing is no longer dependent on transaction
monitoring being enabled (if `traces_sampling_rate` would be set to 0,
exceptions wouldn't be capture; now they are).

[ruby-talk:444230] [ANN] tobox 0.4.0 released