Support sending measurements via TransactionEvent

sentry-ruby/lib/sentry/event.rb

@@ -66,6 +66,7 @@ def initialize(configuration:, integration_meta: nil, message: nil)
       @trusted_proxies = configuration.trusted_proxies
       @stacktrace_builder = configuration.stacktrace_builder
       @rack_env_whitelist = configuration.rack_env_whitelist
+      @custom_measurements = configuration.custom_measurements
 
       @message = (message || "").byteslice(0..MAX_MESSAGE_SIZE_IN_BYTES)
     end

sentry-ruby/lib/sentry/transaction_event.rb

@@ -11,6 +11,9 @@ class TransactionEvent < Event
     # @return [Hash, nil]
     attr_accessor :dynamic_sampling_context
 
+    # @return [Hash]
+    attr_accessor :measurements
+
     # @return [Float, nil]
     attr_reader :start_timestamp
 
@@ -26,6 +29,10 @@ def initialize(transaction:, **options)
       self.tags = transaction.tags
       self.dynamic_sampling_context = transaction.get_baggage.dynamic_sampling_context
 
+      if @custom_measurements
+        self.measurements = transaction.measurements
+      end
+
       finished_spans = transaction.span_recorder.spans.select { |span| span.timestamp && span != transaction }
       self.spans = finished_spans.map(&:to_hash)
     end
@@ -42,6 +49,7 @@ def to_hash
       data = super
       data[:spans] = @spans.map(&:to_hash) if @spans
       data[:start_timestamp] = @start_timestamp
+      data[:measurements] = @measurements
       data
     end
   end

sentry-ruby/spec/sentry/transaction_spec.rb

@@ -507,6 +507,32 @@
         expect(subject.name).to eq("<unlabeled transaction>")
       end
     end
+
+    context "config.custom_measurements = true" do
+      before do
+        Sentry.configuration.custom_measurements = true
+      end
+
+      it "adds measurements the event" do
+        subject.set_measurement("metric.foo", 0.5, "second")
+        subject.finish
+
+        transaction = events.last.to_hash
+        expect(transaction[:measurements]).to eq(
+          { "metric.foo" => { value: 0.5, unit: "second" } }
+        )
+      end
+    end
+
+    context "config.custom_measurements = false" do
+      it "adds measurements the event" do
+        subject.set_measurement("metric.foo", 0.5, "second")
+        subject.finish
+
+        transaction = events.last.to_hash
+        expect(transaction[:measurements]).to eq(nil)
+      end
+    end
   end
 
   describe "#get_baggage" do