Set up initial Lambda sturucture with Cognito

Create demo Lambda/Gateway pair with Cognito integration

Lambdas/Lists/pom.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>groupId</groupId>
+    <artifactId>Lists</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <dependencies>
+        <dependency>
+            <groupId>com.amazonaws</groupId>
+            <artifactId>aws-lambda-java-core</artifactId>
+            <version>1.2.1</version>
+        </dependency>
+        <dependency>
+            <groupId>com.amazonaws</groupId>
+            <artifactId>aws-lambda-java-events</artifactId>
+            <version>3.1.0</version>
+        </dependency>
+        <dependency>
+            <groupId>com.amazonaws</groupId>
+            <artifactId>aws-lambda-java-log4j2</artifactId>
+            <version>1.2.0</version>
+        </dependency>
+    </dependencies>
+</project>

Lambdas/Lists/src/main/java/ListAdd.java

@@ -0,0 +1,22 @@
+import java.util.Map;
+
+import com.amazonaws.services.lambda.runtime.Context;
+import com.amazonaws.services.lambda.runtime.RequestHandler;
+
+public class ListAdd implements RequestHandler<Map<String,Object>, String>{
+
+
+    public String handleRequest(Map<String, Object> inputMap, Context unfilled) {
+        System.out.println(inputMap.keySet());
+        System.out.println(inputMap.entrySet());
+        Map<String, Object> contextMap;
+        if ((inputMap.get("context") != null) && (inputMap.get("context") instanceof Map<?, ?>)) {
+            contextMap = ((Map<String, Object>) inputMap.get("context"));
+        } else {
+            throw new IllegalArgumentException("The key \"Context\" must exist and be a map");
+        }
+        System.out.println(inputMap.get("context"));
+        System.out.println(contextMap.get("sub"));
+        return null;
+    }
+}