pack integers not strings

DataDog · Jun 13, 2024 · f416397 · f416397
1 parent 3c84f1f
commit f416397
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/lib/datadog/opentelemetry/sdk/propagator.rb b/lib/datadog/opentelemetry/sdk/propagator.rb
@@ -41,9 +41,9 @@ def extract(
           digest = @datadog_propagator.extract(carrier)
           return context unless digest
 
-          # Converts the {Numeric} Datadog id object to OpenTelemetry's byte array format.
-          trace_id = [format('%032x', digest.trace_id)].pack('H32')
-          span_id = [format('%016x', digest.span_id)].pack('H16')
+          # Converts the {Numeric} Datadog id object to OpenTelemetry's byte array format.  
+          trace_id = [digest.trace_id >> 64, digest.trace_id & 0xFFFFFFFFFFFFFFFF].pack('Q>Q>') # 128-bit unsigned, big-endian integer  
+          span_id = [digest.span_id].pack('Q>') # 64-bit unsigned, big-endian integer 
 
           if digest.trace_state || digest.trace_flags
             trace_flags = ::OpenTelemetry::Trace::TraceFlags.from_byte(digest.trace_flags)