Class: Gitlab::Faraday::ErrorCallback

Inherits:
Faraday::Middleware
  • Object
show all
Defined in:
lib/gitlab/faraday/error_callback.rb

Overview

Simple Faraday Middleware that catches any error risen during the request and run the configured callback. (lostisland.github.io/faraday/middleware/)

By default, a no op callback is setup.

Note that the error is not swallowed: it will be rerisen again. In that regard, this callback acts more like an error spy than anything else.

The callback has access to the request ‘env` and the exception instance. For more details, see lostisland.github.io/faraday/middleware/custom

Faraday.new do |conn|

conn.request(
  :error_callback,
  callback: -> (env, exception) { Rails.logger.debug("Error #{exception.class.name} when trying to contact #{env[:url]}" ) }
)
conn.adapter(:net_http)

end

Defined Under Namespace

Classes: Options

Instance Method Summary collapse

Constructor Details

#initialize(app, options = nil) ⇒ ErrorCallback

Returns a new instance of ErrorCallback.



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# File 'lib/gitlab/faraday/error_callback.rb', line 24

def initialize(app, options = nil)
  super(app)
  @options = ::Gitlab::Faraday::ErrorCallback::Options.from(options) # rubocop: disable CodeReuse/ActiveRecord
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/gitlab/faraday/error_callback.rb', line 29

def call(env)
  @app.call(env)
rescue StandardError => e
  @options.callback&.call(env, e)

  raise
end