This project aims to do one thing - make the SLS framework (www.serverless.com) easier to use in the Java world.
Annotated your classes, as seen below, specify some params in gradle, bada boom - you get a serverless.yml file out.
package org.densebrain.serverless.examples.simple
import com.amazonaws.services.lambda.runtime.*;
import org.densebrain.serverless.annotations.*
import org.densebrain.serverless.annotations.Function
data class TestRequestModel(val id:String)
data class TestResponseModel(val id:String)
@Function(
name = "TestLambda",
environment = [
Environment(
name = "REF_VAR",
yaml = """"Fn::GetAtt": [SessionUpdateLambdaFunction, Arn]"""
)
],
http = [
HttpEvent(
path = "/test/{hello}",
method = HttpEventMethod.GET,
input = TestRequestModel::class,
output = TestResponseModel::class,
request = Request(
paths = [Parameter("hello",true)],
querystrings = [Parameter("since",false)]
)
)
],
schedule = [
ScheduleEvent("rate(3 minutes)")
],
cloudwatch = [
CloudwatchEvent("""
event:
source:
- "aws.batch"
detail:
jobName:
- "$""" + """{self:custom.customVar}"
""")
]
)
class TestLambda : RequestHandler<TestRequestModel, TestResponseModel> {
override fun handleRequest(input: TestRequestModel, context: Context): TestResponseModel {
return TestResponseModel(input.id)
}
}task serverlessBuild(type: ServerlessBuilderTask) {
// WE SUGGEST USING SHADOW TO BUILD
// A SINGLE ARCHIVE TO MAKE SCANNING EASIER
dependsOn(shadowJar)
// PATH TO ARCHIVE OF CLASSES
archive = file("${buildDir.absolutePath}/libs/${shadowJar.archiveName}")
// (OPTIONAL) Bring your own serverless.yml template
// If you specify a template then functions will be appended to
// your functions block
serverlessConfigFile = serverlessBaseFile
// OUTPUT PATH FOR serverless.yml
outputFile = file("${projectDir.absolutePath}/serverless.yml")
// BASE PACKAGE TO SCAN FOR ANNOTATED TYPES
basePackage = "your.package.here"
// GENERATE MODELS/DOCUMENTATION FOR SWAGGER, etc
generateDocumentation = true
// (OPTIONAL) If omitted then the documentation block is appended
// to any existing "custom" block in the serverless.yml
documentationOutputFile = file("${projectDir.absolutePath}/documentation.yml")
}
build.dependsOn(serverlessBuild)