Drop async configuration (#1894)

CHANGELOG.md

@@ -1,3 +1,9 @@
+## Unreleased (6.0.0)
+
+### Breaking Changes
+
+- Remove `config.async` [#1894](https://github.com/getsentry/sentry-ruby/pull/1894)
+
 ## Unreleased
 
 ### Internal

sentry-rails/lib/sentry/rails/active_job.rb

@@ -24,17 +24,13 @@ def record(job, &block)
             Sentry.with_scope do |scope|
               begin
                 scope.set_transaction_name(job.class.name, source: :task)
-                transaction =
-                  if job.is_a?(::Sentry::SendEventJob)
-                    nil
-                  else
-                    Sentry.start_transaction(
-                      name: scope.transaction_name,
-                      source: scope.transaction_source,
-                      op: OP_NAME,
-                      origin: SPAN_ORIGIN
-                    )
-                  end
+
+                transaction = Sentry.start_transaction(
+                  name: scope.transaction_name,
+                  source: scope.transaction_source,
+                  op: OP_NAME,
+                  origin: SPAN_ORIGIN
+                )
 
                 scope.set_span(transaction) if transaction
 

sentry-rails/spec/sentry/rails/activejob_spec.rb

@@ -232,50 +232,6 @@ def perform
       event = transport.events.last.to_json_compatible
       expect(event.dig("exception", "values", 0, "type")).to eq("ZeroDivisionError")
     end
-
-    context "and in user-defined reporting job too" do
-      before do
-        Sentry.configuration.async = lambda do |event, hint|
-          UserDefinedReportingJob.perform_now(event, hint)
-        end
-      end
-
-      class UserDefinedReportingJob < ActiveJob::Base
-        def perform(event, hint)
-          Post.find(0)
-        rescue
-          raise ActiveJob::DeserializationError
-        end
-      end
-
-      it "doesn't cause infinite loop because of excluded exceptions" do
-        expect do
-          DeserializationErrorJob.perform_now
-        end.to raise_error(ActiveJob::DeserializationError, /divided by 0/)
-      end
-    end
-
-    context "and in customized SentryJob too" do
-      before do
-        class CustomSentryJob < ::Sentry::SendEventJob
-          def perform(event, hint)
-            raise "Not excluded exception"
-          rescue
-            raise ActiveJob::DeserializationError
-          end
-        end
-
-        Sentry.configuration.async = lambda do |event, hint|
-          CustomSentryJob.perform_now(event, hint)
-        end
-      end
-
-      it "doesn't cause infinite loop" do
-        expect do
-          DeserializationErrorJob.perform_now
-        end.to raise_error(ActiveJob::DeserializationError, /divided by 0/)
-      end
-    end
   end
 
   context 'using rescue_from' do

sentry-ruby/examples/crons/README.md

@@ -1,7 +1,7 @@
 # sentry-ruby Crons example
 
 Crons monitoring allows you to track that certain that should be performed
-on a certain schedule are indeed performed on time and without errors. See 
+on a certain schedule are indeed performed on time and without errors. See
 [documentation](https://docs.sentry.io/platforms/ruby/crons/) for more details.
 
 This example project has a few rake tasks that manually send monitor check-ins

sentry-ruby/lib/sentry/background_worker.rb

@@ -24,10 +24,7 @@ def initialize(configuration)
       @shutdown_callback = nil
 
       @executor =
-        if configuration.async
-          log_debug("config.async is set, BackgroundWorker is disabled")
-          Concurrent::ImmediateExecutor.new
-        elsif @number_of_threads == 0
+        if @number_of_threads == 0
           log_debug("config.background_worker_threads is set to 0, all events will be sent synchronously")
           Concurrent::ImmediateExecutor.new
         else

sentry-ruby/lib/sentry/client.rb

@@ -53,8 +53,7 @@ def capture_event(event, scope, hint = {})
         return
       end
 
-      event_type = event.is_a?(Event) ? event.type : event["type"]
-      data_category = Envelope::Item.data_category(event_type)
+      data_category = Envelope::Item.data_category(event.type)
       event = scope.apply_to_event(event, hint)
 
       if event.nil?
@@ -63,9 +62,7 @@ def capture_event(event, scope, hint = {})
         return
       end
 
-      if async_block = configuration.async
-        dispatch_async_event(async_block, event, hint)
-      elsif configuration.background_worker_threads != 0 && hint.fetch(:background, true)
+      if configuration.background_worker_threads != 0 && hint.fetch(:background, true)
         queued = dispatch_background_event(event, hint)
         transport.record_lost_event(:queue_overflow, data_category) unless queued
       else
@@ -166,10 +163,9 @@ def event_from_transaction(transaction)
 
     # @!macro send_event
     def send_event(event, hint = nil)
-      event_type = event.is_a?(Event) ? event.type : event["type"]
-      data_category = Envelope::Item.data_category(event_type)
+      data_category = Envelope::Item.data_category(event.type)
 
-      if event_type != TransactionEvent::TYPE && configuration.before_send
+      if event.type != TransactionEvent::TYPE && configuration.before_send
         event = configuration.before_send.call(event, hint)
 
         if event.nil?
@@ -179,7 +175,7 @@ def send_event(event, hint = nil)
         end
       end
 
-      if event_type == TransactionEvent::TYPE && configuration.before_send_transaction
+      if event.type == TransactionEvent::TYPE && configuration.before_send_transaction
         event = configuration.before_send_transaction.call(event, hint)
 
         if event.nil?
@@ -254,28 +250,5 @@ def dispatch_background_event(event, hint)
         send_event(event, hint)
       end
     end
-
-    def dispatch_async_event(async_block, event, hint)
-      # We have to convert to a JSON-like hash, because background job
-      # processors (esp ActiveJob) may not like weird types in the event hash
-
-      event_hash =
-        begin
-          event.to_json_compatible
-        rescue => e
-          log_error("Converting #{event.type} (#{event.event_id}) to JSON compatible hash failed", e, debug: configuration.debug)
-          return
-        end
-
-      if async_block.arity == 2
-        hint = JSON.parse(JSON.generate(hint))
-        async_block.call(event_hash, hint)
-      else
-        async_block.call(event_hash)
-      end
-    rescue => e
-      log_error("Async #{event_hash["type"]} sending failed", e, debug: configuration.debug)
-      send_event(event, hint)
-    end
   end
 end

sentry-ruby/lib/sentry/configuration.rb

@@ -25,13 +25,6 @@ class Configuration
     # @return [Regexp, nil]
     attr_accessor :app_dirs_pattern
 
-    # Provide an object that responds to `call` to send events asynchronously.
-    # E.g.: lambda { |event| Thread.new { Sentry.send_event(event) } }
-    #
-    # @deprecated It will be removed in the next major release. Please read https://github.com/getsentry/sentry-ruby/issues/1522 for more information
-    # @return [Proc, nil]
-    attr_reader :async
-
     # to send events in a non-blocking way, sentry-ruby has its own background worker
     # by default, the worker holds a thread pool that has [the number of processors] threads
     # but you can configure it with this configuration option
@@ -73,7 +66,6 @@ class Configuration
     # @example
     #   config.before_send = lambda do |event, hint|
     #     # skip ZeroDivisionError exceptions
-    #     # note: hint[:exception] would be a String if you use async callback
     #     if hint[:exception].is_a?(ZeroDivisionError)
     #       nil
     #     else
@@ -409,22 +401,6 @@ def release=(value)
       @release = value
     end
 
-    def async=(value)
-      check_callable!("async", value)
-
-      log_warn <<~MSG
-
-        sentry-ruby now sends events asynchronously by default with its background worker (supported since 4.1.0).
-        The `config.async` callback has become redundant while continuing to cause issues.
-        (The problems of `async` are detailed in https://github.com/getsentry/sentry-ruby/issues/1522)
-
-        Therefore, we encourage you to remove it and let the background worker take care of async job sending.
-      It's deprecation is planned in the next major release (6.0), which is scheduled around the 3rd quarter of 2022.
-      MSG
-
-      @async = value
-    end
-
     def breadcrumbs_logger=(logger)
       loggers =
         if logger.is_a?(Array)

sentry-ruby/lib/sentry/transport.rb

@@ -127,10 +127,7 @@ def envelope_from_event(event)
         sent_at: Sentry.utc_now.iso8601
       }
 
-      if event.is_a?(Event) && event.dynamic_sampling_context
-        envelope_headers[:trace] = event.dynamic_sampling_context
-      end
-
+      envelope_headers[:trace] = event.dynamic_sampling_context if event.dynamic_sampling_context
       envelope = Envelope.new(envelope_headers)
 
       envelope.add_item(

sentry-ruby/spec/sentry/background_worker_spec.rb

@@ -10,22 +10,6 @@
   end
 
   describe "#initialize" do
-    context "when config.async is set" do
-      before do
-        configuration.async = proc { }
-      end
-
-      it "initializes a background_worker with ImmediateExecutor" do
-        worker = described_class.new(configuration)
-
-        expect(string_io.string).to match(
-          /config.async is set, BackgroundWorker is disabled/
-        )
-
-        expect(worker.instance_variable_get(:@executor)).to be_a(Concurrent::ImmediateExecutor)
-      end
-    end
-
     context "when config.background_worker_threads is set" do
       it "initializes a background worker with correct number of threads and queue size" do
         configuration.background_worker_threads = 4