add test for minimmal httpApi payload

Author: softprops

lambda-http/src/request.rs

@@ -29,14 +29,14 @@ pub enum LambdaRequest<'a> {
         route_key: Cow<'a, str>,
         raw_path: Cow<'a, str>,
         raw_query_string: Cow<'a, str>,
-        cookies: Vec<Cow<'a, str>>,
+        cookies: Option<Vec<Cow<'a, str>>>,
         #[serde(deserialize_with = "deserialize_headers")]
         headers: http::HeaderMap,
-        #[serde(deserialize_with = "nullable_default")]
+        #[serde(default)]
         query_string_parameters: StrMap,
-        #[serde(default, deserialize_with = "nullable_default")]
+        #[serde(default)]
         path_parameters: StrMap,
-        #[serde(default, deserialize_with = "nullable_default")]
+        #[serde(default)]
         stage_variables: StrMap,
         body: Option<Cow<'a, str>>,
         #[serde(default)]
@@ -546,6 +546,21 @@ mod tests {
         assert!(result.is_ok(), format!("event was not parsed as expected {:?}", result));
     }
 
+    #[test]
+    fn deserializes_minimal_apigw_v2_request_events() {
+        // from the docs
+        // https://docs.aws.amazon.com/lambda/latest/dg/eventsources.html#eventsources-api-gateway-request
+        let input = include_str!("../tests/data/apigw_v2_proxy_request_minimal.json");
+        let result = from_str(input);
+        assert!(
+            result.is_ok(),
+            format!("event was not parsed as expected {:?} given {}", result, input)
+        );
+        let req = result.expect("failed to parse request");
+        assert_eq!(req.method(), "GET");
+        assert_eq!(req.uri(), "https://xxx.execute-api.us-east-1.amazonaws.com/");
+    }
+
     #[test]
     fn deserializes_apigw_v2_request_events() {
         // from the docs

lambda-http/tests/data/apigw_v2_proxy_request_minimal.json

@@ -0,0 +1,35 @@
+{
+    "headers": {
+      "accept": "*/*",
+      "content-length": "0",
+      "host": "xxx.execute-api.us-east-1.amazonaws.com",
+      "user-agent": "curl/7.64.1",
+      "x-amzn-trace-id": "Root=1-5eb33c07-de25b420912dee103a5db434",
+      "x-forwarded-for": "65.78.31.245",
+      "x-forwarded-port": "443",
+      "x-forwarded-proto": "https"
+    },
+    "isBase64Encoded": false,
+    "rawPath": "/",
+    "rawQueryString": "",
+    "requestContext": {
+      "accountId": "123456789012",
+      "apiId": "xxx",
+      "domainName": "xxx.execute-api.us-east-1.amazonaws.com",
+      "domainPrefix": "xxx",
+      "http": {
+        "method": "GET",
+        "path": "/",
+        "protocol": "HTTP/1.1",
+        "sourceIp": "65.78.31.245",
+        "userAgent": "curl/7.64.1"
+      },
+      "requestId": "MIZRNhJtIAMEMDw=",
+      "routeKey": "$default",
+      "stage": "$default",
+      "time": "06/May/2020:22:36:55 +0000",
+      "timeEpoch": 1588804615616
+    },
+    "routeKey": "$default",
+    "version": "2.0"
+  }