feature #6 - add api gateway event adapter

src/4-framework/utility/eventAdapters.ts

@@ -1,4 +1,4 @@
-import { ALBEvent } from 'aws-lambda'
+import { ALBEvent, APIGatewayEvent } from 'aws-lambda'
 
 export const albHttpEventNormalizer = (event: ALBEvent) => {
   let payload = {}
@@ -13,3 +13,21 @@ export const albHttpEventNormalizer = (event: ALBEvent) => {
 
   return payload
 }
+
+export const apiGatewayHttpEventNormalizer = (event: APIGatewayEvent) => {
+  let payload = {}
+  if (event.queryStringParameters) {
+    payload = { ...event.queryStringParameters }
+  }
+
+  if (event.body) {
+    const body = JSON.parse(event.body)
+    payload = { ...payload, ...body }
+  }
+
+  if (event.pathParameters) {
+    payload = { ...payload, ...event.pathParameters }
+  }
+
+  return payload
+}