Merge pull request #50 from silvermine/expose-body

feat: expose Response.body as read-only property

src/Response.ts

@@ -28,6 +28,15 @@ export default class Response {
       this._lambdaCallback = cb;
    }
 
+   /**
+    * Expose the body of the response as a read-only property so that it can be used in
+    * places such as after write listeners (for validating or logging the body that was
+    * sent).
+    */
+   public get body(): string {
+      return this._body;
+   }
+
    // METHODS RELATED TO SETTING RESPONSE HEADERS AND CODES THAT DO NOT SEND RESPONSES
 
    /**

tests/Response.test.ts

@@ -589,6 +589,15 @@ describe('Response', () => {
       });
    });
 
+   describe('body property', () => {
+      it('contains what was sent in the response', () => {
+         const resp = new Response(app, new Request(app, apiGatewayRequest(), handlerContext()), spy());
+
+         resp.send({ foo: 'bar' });
+         expect(resp.body).to.eql(JSON.stringify({ foo: 'bar' }));
+      });
+   });
+
    describe('response sending functions', () => {
       let cb: SinonSpy, resp: Response;