From a195468ea239c0aa3aa31e72c98d4dc77022992c Mon Sep 17 00:00:00 2001
From: Graham Lee <graham.lee@cs.ox.ac.uk>
Date: Tue, 26 Apr 2022 14:32:43 +0100
Subject: [PATCH] Fix 500 error in data service #2670

---
 data-serving/data-service/src/controllers/case.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/data-serving/data-service/src/controllers/case.ts b/data-serving/data-service/src/controllers/case.ts
index 00ae385eb..7a612559e 100644
--- a/data-serving/data-service/src/controllers/case.ts
+++ b/data-serving/data-service/src/controllers/case.ts
@@ -58,7 +58,7 @@ const caseFromDTO = async (receivedCase: CaseDTO) => {
 
 const dtoFromCase = async (storedCase: LeanDocument<CaseDocument>) => {
     let dto = storedCase as unknown as CaseDTO;
-    if (storedCase.demographics.ageBuckets && storedCase.demographics.ageBuckets.length > 0) {
+    if (storedCase.demographics && storedCase.demographics.ageBuckets && storedCase.demographics.ageBuckets.length > 0) {
         const ageBuckets = await Promise.all(storedCase.demographics.ageBuckets.map((bucketId) => {
             return AgeBucket.findById(bucketId).lean()
         }));