grpc-js: Add null check in pick_first array access

murgatroid99 · murgatroid99 · commit a4ba92535237 · 2023-08-08T10:37:20.000-07:00
diff --git a/packages/grpc-js/src/load-balancer-pick-first.ts b/packages/grpc-js/src/load-balancer-pick-first.ts
@@ -306,7 +306,7 @@ export class PickFirstLoadBalancer implements LoadBalancer {
           this.children[subchannelIndex].subchannel.getAddress()
       );
       process.nextTick(() => {
-        this.children[subchannelIndex].subchannel.startConnecting();
+        this.children[subchannelIndex]?.subchannel.startConnecting();
       });
     }
     this.connectionDelayTimeout = setTimeout(() => {

Original file line number	Diff line number	Diff line change
`@@ -306,7 +306,7 @@ export class PickFirstLoadBalancer implements LoadBalancer {`
`306`	`306`	`this.children[subchannelIndex].subchannel.getAddress()`
`307`	`307`	`);`
`308`	`308`	`process.nextTick(() => {`
`309`		`- this.children[subchannelIndex].subchannel.startConnecting();`
	`309`	`+ this.children[subchannelIndex]?.subchannel.startConnecting();`
`310`	`310`	`});`
`311`	`311`	`}`
`312`	`312`	`this.connectionDelayTimeout = setTimeout(() => {`