update parsing when no headers are present

Author: manwaring

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html)
 
+## [3.6.3]  (2020-06-21)
+
+### Fixed
+
+- Fix changes to eagerly parse api payloads as JSON
+
 ## [3.6.2]  (2020-06-21)
 
 ### Updated
@@ -241,6 +247,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/),
 - Update older libraries
 - Now publish from Git tags instead of master pushes
 
+[3.6.3]: https://github.com/manwaring/lambda-wrapper/compare/v3.6.2...v3.6.3
+[3.6.2]: https://github.com/manwaring/lambda-wrapper/compare/v3.6.1...v3.6.2
 [3.6.1]: https://github.com/manwaring/lambda-wrapper/compare/v3.6.0...v3.6.1
 [3.6.0]: https://github.com/manwaring/lambda-wrapper/compare/v3.5.0...v3.6.0
 [3.5.0]: https://github.com/manwaring/lambda-wrapper/compare/v3.4.0...v3.5.0

package-lock.json

@@ -1,7 +1,7 @@
 {
   "name": "@manwaring/lambda-wrapper",
   "description": "A lambda handler wrapper to abstract common functionality and provide useful defaults",
-  "version": "3.6.2",
+  "version": "3.6.3",
   "scripts": {
     "publish-please-dry-run": "publish-please --dry-run",
     "publish-please": "publish-please",

package.json

@@ -33,7 +33,7 @@ describe('Body parsing', () => {
 
   it("Tries to parse body as JSON when content type isn't specified", () => {
     const json = { hello: 'world' };
-    const headers = {};
+    const headers = undefined;
     const body = new Body(JSON.stringify(json), headers).getParsedBody();
     expect(body).toEqual(json);
   });

src/api/parser.test.ts

@@ -54,7 +54,9 @@ export class Body {
   }
 
   private getContentType(): string {
-    return this?.headers['Content-Type'] || this?.headers['CONTENT-TYPE'] || this?.headers['content-type'];
+    return (
+      this.headers && (this.headers['Content-Type'] || this.headers['CONTENT-TYPE'] || this.headers['content-type'])
+    );
   }
 
   private isFormUrlEncoded(contentType?: string): boolean {