Removed requirement for at least 1 header in responses to address #3.

Author: sapessi

core/response.go

@@ -60,10 +60,6 @@ func (r *ProxyResponseWriter) WriteHeader(status int) {
 // Returns a populated proxy response object. If the reponse is invalid, for example
 // has no headers or an invalid status code returns an error.
 func (r *ProxyResponseWriter) GetProxyResponse() (events.APIGatewayProxyResponse, error) {
-	if len(r.headers) == 0 {
-		return events.APIGatewayProxyResponse{}, errors.New("No headers generated for response")
-	}
-
 	if r.status == defaultStatusCode {
 		return events.APIGatewayProxyResponse{}, errors.New("Status code not set on response")
 	}

core/response_test.go

@@ -52,12 +52,6 @@ var _ = Describe("ResponseWriter tests", func() {
 	Context("Export API Gateway proxy response", func() {
 		noHeaderResponse := NewProxyResponseWriter()
 
-		It("Refuses responses with no headers", func() {
-			_, err := noHeaderResponse.GetProxyResponse()
-			Expect(err).ToNot(BeNil())
-			Expect("No headers generated for response").To(Equal(err.Error()))
-		})
-
 		emtpyResponse := NewProxyResponseWriter()
 		emtpyResponse.Header().Add("Content-Type", "application/json")