Merge pull request #59 from jli996/patch-1

Construct api end point from apiId, aws region and stage.

sendmessage/app.js

@@ -18,7 +18,7 @@ exports.handler = async event => {
 
   const apigwManagementApi = new AWS.ApiGatewayManagementApi({
     apiVersion: '2018-11-29',
-    endpoint: event.requestContext.domainName + '/' + event.requestContext.stage
+    endpoint: `${event.requestContext.apiId}.execute-api.${process.env.AWS_REGION}.amazonaws.com/${event.requestContext.stage}`
   });
 
   const postData = JSON.parse(event.body).data;