From c5ef54a06d6a9bd4c692e0339f21161cbfbf1e3f Mon Sep 17 00:00:00 2001
From: Teddy Sterne <teddy.sterne@fountainlife.com>
Date: Mon, 4 Nov 2024 16:03:58 -0500
Subject: [PATCH] Remove array values from queryStringParameters

---
 src/adapters/helpers/lambdaEvent.ts | 7 +++----
 test/lambda-event.test.ts           | 7 +------
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/src/adapters/helpers/lambdaEvent.ts b/src/adapters/helpers/lambdaEvent.ts
index 257a645..6155942 100644
--- a/src/adapters/helpers/lambdaEvent.ts
+++ b/src/adapters/helpers/lambdaEvent.ts
@@ -19,6 +19,8 @@ export const lambdaEvent = (config: AlphaOptions, relativeUrl?: string) => {
   Object.keys(multiValueQueryStringParameters).forEach((key) => {
     if (!Array.isArray(multiValueQueryStringParameters[key])) {
       delete multiValueQueryStringParameters[key];
+    } else {
+      delete params[key];
     }
   });
 
@@ -71,10 +73,7 @@ export const lambdaEvent = (config: AlphaOptions, relativeUrl?: string) => {
         userArn: null,
       },
     },
-    multiValueQueryStringParameters:
-      Object.keys(multiValueQueryStringParameters).length > 0
-        ? multiValueQueryStringParameters
-        : null,
+    multiValueQueryStringParameters,
   };
 
   if (Buffer.isBuffer(event.body)) {
diff --git a/test/lambda-event.test.ts b/test/lambda-event.test.ts
index 638ff71..48498bf 100644
--- a/test/lambda-event.test.ts
+++ b/test/lambda-event.test.ts
@@ -31,11 +31,6 @@ test('Can parse URLs with duplicate parameters', () => {
     httpMethod: 'GET',
     path: '/lifeomic/dstu3/Questionnaire',
     queryStringParameters: {
-      _tag: [
-        'http://lifeomic.com/fhir/questionnaire-type|survey-form',
-        'http://lifeomic.com/fhir/dataset|0bb18fef-4e2d-4b91-a623-09527265a8b3',
-        'http://lifeomic.com/fhir/primary|0343bfcf-4e2d-4b91-a623-095272783bf3',
-      ],
       pageSize: '25',
     },
     multiValueQueryStringParameters: {
@@ -62,7 +57,7 @@ test('Can parse URLs without duplicates', () => {
       pageSize: '25',
       test: 'diffValue',
     },
-    multiValueQueryStringParameters: null,
+    multiValueQueryStringParameters: {},
   }));
   assertRequestId(result);
 });