Load Test: Fix API issues identified from load testing

[mithunshanbhag]

From LogAnalytics, the following error was generated by AKS cluster

2022/12/09 04:24:33 [error] 309#309: *32437 connect() failed (111: Connection refused) while connecting to upstream, client: 20.75.160.232, server: contoso-traders-productsmithun.eastus.cloudapp.azure.com, request: "GET /v1/Products/1 HTTP/1.1", upstream: "http://10.244.0.12:80/v1/Products/1", host: "contoso-traders-productsmithun.eastus.cloudapp.azure.com"