fixes #127 fix an NPE issue if request doesn't exist in the exchange

stevehu · stevehu · commit 7579a6e171d8 · 2025-03-27T20:37:56.000-04:00
diff --git a/src/main/java/com/networknt/aws/lambda/handler/middleware/traceability/TraceabilityMiddleware.java b/src/main/java/com/networknt/aws/lambda/handler/middleware/traceability/TraceabilityMiddleware.java
@@ -35,7 +35,7 @@ public Status execute(final LightLambdaExchange exchange) {
             LOG.debug("TraceabilityMiddleware.executeMiddleware starts.");
 
         String tid = null;
-        if(exchange.getRequest().getHeaders() != null) {
+        if(exchange.getRequest() != null && exchange.getRequest().getHeaders() != null) {
             Optional<String> tidOptional = MapUtil.getValueIgnoreCase(exchange.getRequest().getHeaders(), HeaderKey.TRACEABILITY);
             tid = tidOptional.orElse(null);
         }

Original file line number	Diff line number	Diff line change
`@@ -35,7 +35,7 @@ public Status execute(final LightLambdaExchange exchange) {`
`35`	`35`	`LOG.debug("TraceabilityMiddleware.executeMiddleware starts.");`
`36`	`36`
`37`	`37`	`String tid = null;`
`38`		`- if(exchange.getRequest().getHeaders() != null) {`
	`38`	`+ if(exchange.getRequest() != null && exchange.getRequest().getHeaders() != null) {`
`39`	`39`	`Optional<String> tidOptional = MapUtil.getValueIgnoreCase(exchange.getRequest().getHeaders(), HeaderKey.TRACEABILITY);`
`40`	`40`	`tid = tidOptional.orElse(null);`
`41`	`41`	`}`