feat: log aws request id (aws-powertools#133)

Author: pankajagrawal16

docs/content/core/logging.mdx

@@ -70,6 +70,7 @@ Key | Type | Example | Description
 **functionMemorySize**| String | "128"
 **functionArn**| String | "arn:aws:lambda:eu-west-1:012345678910:function:example-powertools-HelloWorldFunction-1P1Z6B39FLU73"
 **xray_trace_id**| String | "1-5759e988-bd862e3fe1be46a994272793" | X-Ray Trace ID when Lambda function has enabled Tracing
+**function_request_id**| String | "899856cb-83d1-40d7-8611-9e78f15f32f4"" | AWS Request ID from lambda context
 
 ## Capturing context Lambda info
 

powertools-logging/src/main/java/software/amazon/lambda/powertools/logging/internal/DefaultLambdaFields.java

@@ -22,7 +22,8 @@ enum DefaultLambdaFields {
     FUNCTION_NAME("functionName"),
     FUNCTION_VERSION("functionVersion"),
     FUNCTION_ARN("functionArn"),
-    FUNCTION_MEMORY_SIZE("functionMemorySize");
+    FUNCTION_MEMORY_SIZE("functionMemorySize"),
+    FUNCTION_REQUEST_ID("function_request_id");
 
     private final String name;
 
@@ -41,6 +42,7 @@ static Map<String, String> values(Context context) {
         hashMap.put(FUNCTION_VERSION.name, context.getFunctionVersion());
         hashMap.put(FUNCTION_ARN.name, context.getInvokedFunctionArn());
         hashMap.put(FUNCTION_MEMORY_SIZE.name, String.valueOf(context.getMemoryLimitInMB()));
+        hashMap.put(FUNCTION_REQUEST_ID.name, String.valueOf(context.getAwsRequestId()));
 
         return hashMap;
     }

powertools-logging/src/test/java/software/amazon/lambda/powertools/logging/internal/LambdaLoggingAspectTest.java

@@ -69,7 +69,7 @@
 
 class LambdaLoggingAspectTest {
 
-    private static final int EXPECTED_CONTEXT_SIZE = 7;
+    private static final int EXPECTED_CONTEXT_SIZE = 8;
     private RequestStreamHandler requestStreamHandler;
     private RequestHandler<Object, Object> requestHandler;
 
@@ -99,6 +99,7 @@ void shouldSetLambdaContextWhenEnabled() {
                 .containsEntry(DefaultLambdaFields.FUNCTION_MEMORY_SIZE.getName(), "10")
                 .containsEntry(DefaultLambdaFields.FUNCTION_VERSION.getName(), "1")
                 .containsEntry(DefaultLambdaFields.FUNCTION_NAME.getName(), "testFunction")
+                .containsEntry(DefaultLambdaFields.FUNCTION_REQUEST_ID.getName(), "RequestId")
                 .containsKey("coldStart")
                 .containsKey("service");
     }
@@ -115,6 +116,7 @@ void shouldSetLambdaContextForStreamHandlerWhenEnabled() throws IOException {
                 .containsEntry(DefaultLambdaFields.FUNCTION_MEMORY_SIZE.getName(), "10")
                 .containsEntry(DefaultLambdaFields.FUNCTION_VERSION.getName(), "1")
                 .containsEntry(DefaultLambdaFields.FUNCTION_NAME.getName(), "testFunction")
+                .containsEntry(DefaultLambdaFields.FUNCTION_REQUEST_ID.getName(), "RequestId")
                 .containsKey("coldStart")
                 .containsKey("service");
     }
@@ -232,6 +234,7 @@ private void setupContext() {
         when(context.getInvokedFunctionArn()).thenReturn("testArn");
         when(context.getFunctionVersion()).thenReturn("1");
         when(context.getMemoryLimitInMB()).thenReturn(10);
+        when(context.getAwsRequestId()).thenReturn("RequestId");
     }
 
     private void resetLogLevel(Level level) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {