lrails: A Ruby repository from davideweaver

Ruby Loggr Agent (loggr-rb)

This Gem/Plugin posts events and exception data to Loggr http://loggr.net. Includes a fluent interface to posting events.

Before installing this gem/plugin, be sure to sign up for a free Loggr account and log at http://loggr.net

Installation

Install in your Rails 3 app

Configure your Gemfile
```
gem 'loggr-rb'
```
Run Bundler
```
bundle install
```
Generate the Loggr config file (config/loggr.yml)

If you are using bundler:
```
$ bundle exec loggr install YOUR-LOG-KEY YOUR-API-KEY
```
If you are not using bundler:
```
$ loggr install YOUR-LOG-KEY YOUR-API-KEY
```
You will find the LOG_KEY and API_KEY in the apps settings popup within Loggr.
Test everything is working

If you are using bundler:
```
$ bundle exec loggr test
```
If you are not using bundler:
```
$ loggr test
```
You will see a test event in your Loggr log

Install in your Rails 2 app

Install the loggr gem
```
$ gem install loggr-rb
```
Configure your environment.rb file
```
config.gem 'loggr-rb'
```
Generate the Loggr config file (config/loggr.yml)
```
$ loggr install YOUR-LOG-KEY YOUR-API-KEY
```
You will find the LOG_KEY and API_KEY in the apps settings popup within Loggr.
Delete the old Exceptional Plugin (if installed)
```
$ rm -rf vendor/plugins/loggr-rb
```
Test everything is working
```
$ loggr test
```
You will see a test event in your Loggr log

Install in your Rack app

Install the loggr gem
```
$ gem install loggr-rb
```
Configure your config.ru file
```
require 'loggr-rb'
use Rack::Loggr, LOG-KEY, API_KEY
```
You will find the LOG_KEY and API_KEY in the apps settings popup within Loggr.
Ensure Loggr for Rack is being loaded

Check log/loggr.log log file

Install in your Sinatra app

Install the loggr gem
```
$ gem install loggr-rb
```
Configure your Sinatra app's environment
```
require 'loggr-rb'
use Rack::Loggr, LOG-KEY, API_KEY
```
You will find the LOG_KEY and API_KEY in the apps settings popup within Loggr.
Ensure :raise_errors is set to true
```
set :raise_errors, true
```
Ensure Loggr for Sinatra is being loaded

Check log/loggr.log log file

Install in your Ruby app

Install the loggr gem
```
$ gem install loggr-rb
```
Generate the Loggr config file (config/loggr.yml)

If you are using bundler:
```
$ bundle exec loggr install YOUR-LOG-KEY YOUR-API-KEY
```
If you are not using bundler:
```
$ loggr install YOUR-LOG-KEY YOUR-API-KEY
```
You will find the API_KEY in the apps settings screen within Exceptional.
Require the Loggr gem in your ruby code
```
require 'rubygems'
require 'loggr-rb'
```
Configure Loggr for your ruby app
```
Loggr::Config.load("config/loggr.yml")
```
Use Loggr block to catch exceptions in your ruby code in different ways

If you are using bundler:
```
$ bundle exec loggr test
```
If you are not using bundler:
```
$ loggr test
```
You will see a test event in your Loggr log

Use Loggr blocks to catch exceptions in your ruby code in different ways

Loggr.rescue do
  # Exceptions inside this block will be reported to loggr.net
end

Loggr.rescue_and_reraise do
  # Exceptions will be reported to loggr.net and then
  # re-raised to your ruby code
end

How To Use

Here's some sample code to get you started...

Post events

Post a simple event

Loggr::Events.create() \
	.text("This is a simple event") \
	.post()

A more complex example

Loggr::Events.create() \
	.textf("More complex event: %1", counter) \
	.link("http://loggr.net") \
	.tags("tag1 tag2") \
	.source(current_user) \
	.value(35.50) \
	.dataf("<b>user-agent:</b> %s<br/><b>on:</b> %s", r.UA, today) \
	.datatype(Loggr::DataType.HTML) \
	.geo(40.1203, -76.2944) \
	.post()

Exceptions

Easily post a Ruby exception

Loggr::Events.create_from_exception(ex, request).post()

Or add your own details to the exception

Loggr::Events.create_from_exception(ex, request) \
	.text("This was an error: $$") \
	.source("myapp") \
	.add_tags("critical") \
	.geo_ip("234.56.32.112") \
	.post()

Extending the agent

It's pretty common to want to override the posting of the event to add things like default tags or other information. You can do that by providing a lambda to the create() call as shown here:

```
callback = lambda {|ev|
  # use this callback to make sure source is set
  # to the site's current user
  e.source(MyApp::context.current_user)
}
```

Then use that lambda when posting an event

```
Loggr::Events.create(callback) \
  .text("deleted a commment") \
  .tags("comment delete") \
  .post()
```

It also works with exceptions.

```
Loggr::Events.create_from_exception(ex, request, callback).post()
```

It may be helpful to provide a wrapper around Loggr::Events.create and Loggr::Events.create_with_exception that always includes your callback.

More Information

For more information check out our docs site http://docs.loggr.net

davideweaver/lrails