spring-cloud-function

Spring Cloud Function to Connect to AWS Lambda

Dependencies:

		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-function-adapter-aws</artifactId>
		</dependency>
		<dependency>
			<groupId>com.amazonaws</groupId>
			<artifactId>aws-lambda-java-events</artifactId>
			<version>2.0.2</version>
		</dependency>
		<dependency>
			<groupId>com.amazonaws</groupId>
			<artifactId>aws-lambda-java-core</artifactId>
			<version>1.1.0</version>
			<scope>provided</scope>
		</dependency>

Build Plugins:

	<dependency>
		<groupId>org.springframework.boot.experimental</groupId>
		<artifactId>spring-boot-thin-layout</artifactId>
		<version>1.0.10.RELEASE</version>
	</dependency>

Created a FarenheitCelsiusHandler that extends SpringBootRequestHandler<APIGatewayProxyRequestEvent, APIGatewayProxyResponseEvent>
FarenheitToCelsius logic is handled in FarenheitToCelsisConvertor by implmenting Function<APIGatewayProxyRequestEvent, APIGatewayProxyResponseEvent>
mvn clean install and generate aws specfic jar (spring-cloud-function-0.0.1-SNAPSHOT-aws.jar)
Create a lambda function and add trigger with API Gateway option with all default values and select Java 11 as runtime
Upload the jar file and save the lambda.
Copy the from the API Gateway -> Details

Test: curl -X POST -H 'Content-Type:text/plain' /farenheitToCelsius -d '102' -i

HTTP/1.1 200 OK Date: Thu, 16 Jan 2020 10:21:09 GMT Content-Type: application/json Content-Length: 39 Connection: keep-alive

Converted Celsius : 38.888888888888886

Reference: https://github.com/TechPrimers/spring-cloud-function-aws-example

meenakshisund/spring-cloud-function

spring-cloud-function