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Sarapis Lambda Functions

This repository contains the AWS Lambda functions to support CRUD operations for HSDS organization datasets. The Lambda functions are vended behind an API and are listening to APIGatewayEvents.

Invoke Lambda locally

Install sam (see docs).

Move to the organization-handler-lambda

cd function/organization-handler-lambda

Build the lambda

sam build

Invoke the lambda

sam local invoke OrganizationLambdaTest --event event.json

Start Development Server

You start an http server to invoke the Lambda function. If you look at the template.yaml file, you will find the following definition:

Events:
Api:
  Type: Api
  Properties:
    Path: /organizations
    Method: GET

This will publish a GET HTTP endpoint on http://127.0.0.1:3000/organizations that will invoke the lambda. If you want to test any other endpoint you will need to change the Path and Method property in the template.yaml file.

You can start the development server running

cd function/organization-handler-lambda
sam build
sam local start-api

Any changes made to the Lambda function will be reflected automatically without having to run sam local start-api. However, if you make any changes to the template.yaml file you will need to run sam build.

Test with locally running DynamoDB

Make sure that the init.sh command is executable.

chmod +x initdb/init.sh

Spin up the docker container with DynamoDB.

docker-compose up -d

This will create a container with DynamoDB. The database can be accessed in port 8080.

Formatting

We will be following the Google Java Style Guide. To format your code before pushing you need to run the formatter:

cd function/organization-handler-lambda
mvn formatter:format