DataStax-Examples/aws-lambda-nodejs

This example shows how to use AWS Lambda with the Node.js DataStax Cassandra Driver to set up a basic REST API for a Cassandra database via HTTP Endpoints. The Serverless Framework is used to facilitate the setup and deployment of the functions.Contributor(s): Chris SplinterObjectivesHow to use the DataStax Cassandra Driver with AWS Lambda functionsHow to use the Serverless Framework to set up AWS LAmbda functions HTTP EndpointsProject Layouthandler.js: Contains the DataStax Cassandra Driver connection and queries as well as the AWS Lambda function entry points.serverless.yml: Used by serverless to deploy and configure the AWS Lambda artifacts needed to run the function.package.json: Defines the dependencies and descriptive example metadata.How it worksThe Serverless Framework handles the packaging and deployment of the functions to the AWS resources. Once the functions are deployed, the DataStax Cassandra Driver establishes the connection to the database and returns the results via the AWS Lambda HTTP Endpoints which can be accessed to interact with the database.Setup & RunningSetupBefore running with this example, head over to the SETUP-README for instructions on how tolaunch an instance in AWS EC2install and start a Cassandra databasesetup your local development environment for Node.js and serverlessOnce the above is completed, you will have all of the needed pieces in place to run this example.Clone this repositorygit clone https://github.com/DataStax-Examples/aws-lambda-nodejs.gitGo to the aws-lambda-nodejs directorycd aws-lambda-nodejsInstall the DataStax Cassandra Drivernpm install cassandra-driverConfigure serverless.yml with your S3 bucket, Contact Points ( public IP of AWS EC2 instance ), and Local Data Center ( likely datacenter1 )RunningFrom the project directory, deploy your function. This should output the endpoints that you can use to access the database.sls deployWhen you are done, don't forget to clean things up withsls removeUsing the HTTP EndpointscreateCatalogcurl -X POST https://<function-id>.execute-api.us-east-2.amazonaws.com/dev/catalog/createexpected output:Successfully created shopping.catalog schemaaddItemcurl -X POST -d '{"item_id": 0, "name": "name_0", "description": "desc_0", "price": 10.1}' https://<function-id>.execute-api.us-east-2.amazonaws.com/dev/catalog/addexpected output:{"query":"INSERT INTO shopping.catalog (item_id, name, description, price) VALUES (?, ?, ?, ?)","item_id":0,"name":"name_0","description":"desc_0","price":10.1}getItemcurl -X GET https://<function-id>.execute-api.us-east-2.amazonaws.com/dev/catalog/get/0expected output:{"query":"SELECT name, description, price FROM shopping.catalog WHERE item_id = ?","item_id":"0","name":"name_0","description":"desc_0","price":"10.1"}