Welcome! and thank you for visiting my little home on the web. I would love to tell you more about my journeys in tech and running. I mostly write about what I learn from running long distances and building large scale web applications. I also enjoy reading your email responses.
Thank you, Chris
In this tutorial I show you how to package and deploy a simple Scala project to AWS Lambda. Then I show you how to add the lambda to API Gateway to run in response to GET requests.
build.sbt filesrc/main/scala/example/Main.scalasbt then in the sbt prompt run assembly.target/scala-2.11/lambda-demo-assembly-1.0.jarjavacOptions ++= Seq("-source", "1.8", "-target", "1.8", "-Xlint")
lazy val root = (project in file(".")).
settings(
name := "lambda-demo",
version := "1.0",
scalaVersion := "2.11.4",
retrieveManaged := true,
libraryDependencies += "com.amazonaws" % "aws-lambda-java-core" % "1.0.0",
libraryDependencies += "com.amazonaws" % "aws-lambda-java-events" % "1.0.0"
)
mergeStrategy in assembly :=
{
case PathList("META-INF", xs @ _*) => MergeStrategy.discard
case x => MergeStrategy.first
}
package example;
class Main {
import java.io.{InputStream, OutputStream, PrintStream}
def greeting(input: InputStream, output: OutputStream): Unit = {
val result = s"Yo!"
output.write(result.getBytes("UTF-8"))
}
}
/target/scala-2.11/lambda-demo-assembly-1.0.jarAt this point you could setup API Gateway to use the Scala Lambda in a similar way that I set it up for the node.js Lambda Function.