How to turn an AWS lambda function into an own https endpoint?

Question

I implemented a lambda function on AWS to create an Alexa Skill. I would like to use a https endpoint on another server with node.js. I have no concept on how to approach such a port.

This is my example code of the aws lambda function:

const skillBuilder = Alexa.SkillBuilders.custom();

exports.handler = skillBuilder
  .addRequestHandlers(
    LaunchRequestHandler,
    MyIntentHandler,
    TestIntentHandler,
    HelpIntentHandler,
    CancelAndStopIntentHandler,
    SessionEndedRequestHandler
  )
  .addErrorHandlers(ErrorHandler)
  .lambda();

and as an example, one of the handlers:

const LaunchRequestHandler = {
  canHandle(handlerInput) {
    return handlerInput.requestEnvelope.request.type === 'LaunchRequest';
  },
  handle(handlerInput) {
    const speechText = 'Hello';
    return handlerInput.responseBuilder
      .speak(speechText)
      .reprompt(speechText)
      .withSimpleCard('Welcome', speechText)
      .getResponse();
  },
};

I would need help regarding the node.js app and how to translate this lambda function. Thank you in advance

Answer 1

There are a few options, considering your response in the comments section:

1 - You can create an HTTPS endpoint in API Gateway. The endpoint will get the data received in the https call and forward to lambda, then it will wait the function execution and forward the response. You can find more information here (http://docs.aws.amazon.com/apigateway/latest/developerguide/);

2 - You can provide an https endpoint in a server that you control and can use the aws-sdk (Javascript, Java, Python, etc.) to make a call to lambda function. Like a http service running inside EC2. You can find more information here for node.js (https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/lambda-examples.html);

3 - Now you can make a call to an SQS queue and configure it to fire the lambda execution. The same solution is available using AWS Kinesis. The SQS Queue receive messages as https calls. But this solution probably will need a third party to send the response for the original caller. You can find more information about this option here (http://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/).