From b0fed523a1f594cdc19324b5312db64bab59e77a Mon Sep 17 00:00:00 2001
From: JamieDanielson <jamieedanielson@gmail.com>
Date: Tue, 31 May 2022 17:05:52 -0400
Subject: [PATCH] fix(instrumentation-aws-sdk): dedupe prop fields

Co-authored-by: Kent Quirk <kentquirk@users.noreply.github.com>
Co-authored-by: Purvi Kanal <pkanal@users.noreply.github.com>
Co-authored-by: Mike Goldsmith <mikegoldsmith@users.noreply.github.com>
---
 .../opentelemetry-instrumentation-aws-sdk/src/services/sqs.ts | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/plugins/node/opentelemetry-instrumentation-aws-sdk/src/services/sqs.ts b/plugins/node/opentelemetry-instrumentation-aws-sdk/src/services/sqs.ts
index 6d3ca17f76..b67e2cf112 100644
--- a/plugins/node/opentelemetry-instrumentation-aws-sdk/src/services/sqs.ts
+++ b/plugins/node/opentelemetry-instrumentation-aws-sdk/src/services/sqs.ts
@@ -67,9 +67,7 @@ export class SqsServiceExtension implements ServiceExtension {
           spanAttributes[SemanticAttributes.MESSAGING_OPERATION] =
             MessagingOperationValues.RECEIVE;
 
-          request.commandInput.MessageAttributeNames = (
-            request.commandInput.MessageAttributeNames ?? []
-          ).concat(propagation.fields());
+          request.commandInput.MessageAttributeNames = Array.from(new Set([ ...(request.commandInput.MessageAttributeNames ?? []), ...propagation.fields()]));
         }
         break;