Grape

# config.ru
require "appsignal" # Adicione este require

# Carrega a integração com Grape
Appsignal.load(:grape)

# Adiciona o middleware Rack EventMiddleware do AppSignal
# Requer a gem AppSignal for Ruby 4.7+
use Appsignal::Rack::EventMiddleware

# Requer o app
require_relative "api"

# Inicia o AppSignal
Appsignal.start

# Inicia o app
run Acme::API

# api.rb

module Acme
  class API < Grape::API
    # Adicione esta linha
    insert_before Grape::Middleware::Error, Appsignal::Rack::GrapeMiddleware # Inclua este middleware

    # ...
  end
end

# config.ru
require "appsignal/integrations/grape" # Adicione este require

# Configura o AppSignal
Appsignal.config = Appsignal::Config.new(
  Dir.pwd,        # A raiz do seu app
  ENV["RACK_ENV"] # O ambiente do seu app (development/production)
)
# Inicia o AppSignal
Appsignal.start_logger # Não é necessário na gem Ruby 3.9.3+
Appsignal.start

# Adiciona o Rack EventHandler do AppSignal
# Requer a gem AppSignal for Ruby 3.8+
use ::Rack::Events, [Appsignal::Rack::EventHandler.new]

# Requer o app
require_relative "api"

# Inicia o app
run Acme::API

# api.rb

module Acme
  class API < Grape::API
    # Adicione esta linha
    insert_before Grape::Middleware::Error, Appsignal::Grape::Middleware # Inclua este middleware

    # ...
  end
end

get "/" do
  env["grape.skip_appsignal_error"] = true # Adicione esta linha em um endpoint ou callback
  raise "uh oh" # Erro de exemplo, não copie isto
end

class Api < ::Grape::API
  insert_before Grape::Middleware::Error, Appsignal::Grape::Middleware

  format :json

  rescue_from :all do |error|
    Appsignal.report_error(error)
    error!({ :error => "error message" }.to_json, 500)
  end
end