Quick demo of using another client for some read operations. Other read operations still cause error when primary region is blocked. HPM proxying for local dev still looks to work ok. Still need to add ability to swap out endpoints in the regional endpoint.

src/Common/CosmosClient.ts

@@ -81,6 +81,7 @@ export const tokenProvider = async (requestInfo: Cosmos.RequestInfo) => {
 export const requestPlugin: Cosmos.Plugin<any> = async (requestContext, diagnosticNode, next) => {
   requestContext.endpoint = new URL(configContext.PROXY_PATH, window.location.href).href;
   requestContext.headers["x-ms-proxy-target"] = endpoint();
+  console.log(`Request context: ${JSON.stringify(requestContext)}`);
   return next(requestContext);
 };
 
@@ -133,6 +134,7 @@ enum SDKSupportedCapabilities {
 let _client: Cosmos.CosmosClient;
 
 export function client(): Cosmos.CosmosClient {
+  console.log(`Called primary client`);
   if (_client) return _client;
 
   let _defaultHeaders: Cosmos.CosmosHeaders = {};