Boilerplate for Lambda function envoked from AWS API Gatewat

lambdaApiBoilerplate.js

'use strict';
console.log('Getting JSON...');

exports.handler = async (event) => {
    let templateId = 1;
    let responseCode = 200;
    
    console.log('request:' + JSON.stringify(event));
    
    if (event.queryStringParameters && event.queryStringParameters.templateId) {
        templateId = event.queryStringParameters.templateId;
    }
    
    if (event.body) {
        let body = JSON.parse(event.body);
    }
    
    let responseBody = {
      message: 'test: ' + templateId,
      input: event
    };

    let response = {
        statusCode: responseCode,
        body: JSON.stringify(responseBody)
    };
    
    console.log("Response: " + JSON.stringify(response));
    
    return response;
};