A template to create your AWS Lambda function using Node.js. It covers connecting to a PostgreSQL database, writing queries, fetching results, and sending a request to the desired endpoint.
- Create an 'index.js' file.
- Install the pg module using the command 'npm install pg' – this will generate the 'node_modules' folder and a 'package-lock.json' file.
- Define the exports.handler method to execute the code.
- Add and import all variables related to your server and database.
- Establish a connection with your database.
- Write a query and fetch the data.
- Disconnect from the database if access is no longer needed.
- Implement another method to send a request to your server's endpoint.
- Once you have finished writing the code, compress the contents of your project's root folder and upload the zip file to your Lambda function.
- Create a new scheduler in Amazon EventBridge to trigger this Lambda function.