fix: add body parsing for lambda edge event source

Author: brett-vendia

examples/lambda-edge/lambda-edge-event.json

@@ -3,38 +3,114 @@
     {
       "cf": {
         "config": {
-          "distributionId": "EXAMPLE"
+          "distributionDomainName": "d3qj9vk9486y6c.cloudfront.net",
+          "distributionId": "E2I5C7O4FEQEKZ",
+          "eventType": "viewer-request",
+          "requestId": "BKXC0kFgBfWSEgribSo9EwziZB1FztiXQ96VRvTfFNHYCBv7Ko-RBQ=="
         },
         "request": {
+          "body": {
+            "action": "read-only",
+            "data": "eyJuYW1lIjoiU2FtIn0=",
+            "encoding": "base64",
+            "inputTruncated": false
+          },
+          "clientIp": "203.123.103.37",
           "headers": {
             "host": [
               {
                 "key": "Host",
-                "value": "d123.cf.net"
+                "value": "d3qj9vk9486y6c.cloudfront.net"
               }
             ],
-            "user-name": [
+            "user-agent": [
               {
-                "key": "User-Name",
-                "value": "CloudFront"
+                "key": "User-Agent",
+                "value": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36"
               }
-            ]
-          },
-          "clientIp": "2001:cdba::3257:9652",
-          "uri": "/users",
-          "method": "GET"
-        },
-        "response": {
-          "status": "200",
-          "statusDescription": "OK",
-          "headers": {
-            "x-cache": [
+            ],
+            "content-length": [
+              {
+                "key": "content-length",
+                "value": "14"
+              }
+            ],
+            "cache-control": [
+              {
+                "key": "Cache-Control",
+                "value": "max-age=0"
+              }
+            ],
+            "accept": [
+              {
+                "key": "accept",
+                "value": "application/json,text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9"
+              }
+            ],
+            "if-none-match": [
               {
-                "key": "X-Cache",
-                "value": "Hello from Cloudfront"
+                "key": "if-none-match",
+                "value": "W/\"2e-Lu6qxFOQSPFulDAGUFiiK6QgREo\""
+              }
+            ],
+            "accept-language": [
+              {
+                "key": "accept-language",
+                "value": "en-US,en;q=0.9"
+              }
+            ],
+            "upgrade-insecure-requests": [
+              {
+                "key": "upgrade-insecure-requests",
+                "value": "1"
+              }
+            ],
+            "content-type": [
+              {
+                "key": "content-type",
+                "value": "application/json"
+              }
+            ],
+            "origin": [
+              {
+                "key": "Origin",
+                "value": "https://d3qj9vk9486y6c.cloudfront.net"
+              }
+            ],
+            "sec-fetch-site": [
+              {
+                "key": "Sec-Fetch-Site",
+                "value": "same-origin"
+              }
+            ],
+            "sec-fetch-mode": [
+              {
+                "key": "Sec-Fetch-Mode",
+                "value": "cors"
+              }
+            ],
+            "sec-fetch-dest": [
+              {
+                "key": "Sec-Fetch-Dest",
+                "value": "empty"
+              }
+            ],
+            "referer": [
+              {
+                "key": "Referer",
+                "value": "https://d3qj9vk9486y6c.cloudfront.net/users"
+              }
+            ],
+            "accept-encoding": [
+              {
+                "key": "Accept-Encoding",
+                "value": "gzip, deflate, br"
               }
             ]
-          }
+          },
+          "method": "POST",
+          "querystring": "",
+          "uri": "/users"
         }
       }
     }