This is the search engine for my blog site, in TypeScript.

After the ETL pipeline( aws-medium-contenful ) runs, blogs will be pushed to DynamoDB which will trigger a stream to ElasticSearch.

Code is provisioned through Terraform.

Upon write to DynamoDB, a stream will send the new/old image of the data record to a lambda function, which will divide the events into index and delete buckets depends on the type of write actions.

Then the lambda will invoke the ElasticSearch to map the record using the mapping below:

id: newImage.id,
title: newImage.title,
publishDate: newImage.publishDate,
description: newImage.description,
tags: newImage.tags,

To run the deployment, see build script in package.json.

Note that the code is deployed on Terraform cloud, so you may need to to change the terraform/main.tf file on the backend block depends on your needs.