use official ZIO-lambda library in product-move-api

build.sbt

@@ -568,6 +568,7 @@ lazy val `product-move-api` = lambdaProject(
     "com.softwaremill.sttp.tapir" %% "tapir-core" % tapirVersion,
     "com.softwaremill.sttp.tapir" %% "tapir-json-zio" % tapirVersion,
     "com.softwaremill.sttp.tapir" %% "tapir-aws-lambda" % tapirVersion,
+    "com.softwaremill.sttp.tapir" %% "tapir-aws-lambda-zio" % tapirVersion,
     "com.softwaremill.sttp.tapir" %% "tapir-swagger-ui-bundle" % tapirVersion,
     awsSecretsManager,
     upickle,

handlers/product-move-api/src/main/scala/com/gu/productmove/AwsCredentialsLive.scala

@@ -13,8 +13,8 @@ object AwsCredentialsLive {
 
   private val ProfileName = "membership"
 
-  val layer: Layer[String, AwsCredentialsProvider] =
-    ZLayer.scoped(ZIO.fromAutoCloseable(ZIO.attempt(impl))).mapError(_.toString)
+  val layer: Layer[Throwable, AwsCredentialsProvider] =
+    ZLayer.scoped(ZIO.fromAutoCloseable(ZIO.attempt(impl)))
 
   private def impl: AwsCredentialsProviderChain =
     AwsCredentialsProviderChain

handlers/product-move-api/src/main/scala/com/gu/productmove/Dynamo.scala

@@ -29,7 +29,7 @@ object DynamoLive {
       case Stage.PROD => PROD
   }
 
-  val layer: ZLayer[Stage, ErrorResponse, Dynamo] =
+  val layer: RLayer[Stage, Dynamo] =
     ZLayer.scoped {
       ZIO.service[Stage].map { stage =>
         val dynamoService = SupporterDataDynamoService(getStage(stage))

handlers/product-move-api/src/main/scala/com/gu/productmove/GuStageLive.scala

@@ -6,12 +6,12 @@ object GuStageLive {
   enum Stage:
     case PROD, CODE
 
-  val layer: Layer[String, Stage] =
+  val layer: Layer[Throwable, Stage] =
     ZLayer {
       for {
         stageString <- System.envOrElse("Stage", "CODE")
         stage <- ZIO.attempt(Stage.valueOf(stageString))
       } yield stage
-    }.mapError(_.toString)
+    }
 
 }

handlers/product-move-api/src/main/scala/com/gu/productmove/Handler.scala

@@ -1,78 +1,149 @@
 package com.gu.productmove
 
 import com.amazonaws.services.lambda.runtime.*
-import com.amazonaws.services.lambda.runtime.events.{APIGatewayV2HTTPEvent, APIGatewayV2HTTPResponse}
-import com.gu.productmove.GuStageLive.Stage
 import com.gu.productmove.endpoint.available.AvailableProductMovesEndpoint
 import com.gu.productmove.endpoint.cancel.SubscriptionCancelEndpoint
 import com.gu.productmove.endpoint.move.{ProductMoveEndpoint, ProductMoveEndpointTypes}
 import com.gu.productmove.endpoint.updateamount.UpdateSupporterPlusAmountEndpoint
 import com.gu.productmove.framework.ZIOApiGatewayRequestHandler
-import com.gu.productmove.framework.ZIOApiGatewayRequestHandler.TIO
-import com.gu.productmove.zuora.rest.{ZuoraClient, ZuoraClientLive, ZuoraGet, ZuoraGetLive}
-import com.gu.productmove.zuora.{GetSubscription, GetSubscriptionLive}
-import software.amazon.awssdk.auth.credentials.*
-import software.amazon.awssdk.regions.Region
-import software.amazon.awssdk.services.s3.S3Client
-import software.amazon.awssdk.services.s3.model.{GetObjectRequest, S3Exception}
-import software.amazon.awssdk.utils.SdkAutoCloseable
+import io.circe.generic.semiauto.*
+import io.circe.syntax.*
 import sttp.apispec.openapi.Info
-import sttp.capabilities.WebSockets
-import sttp.capabilities.zio.ZioStreams
 import sttp.client3.*
-import sttp.client3.httpclient.zio.HttpClientZioBackend
-import sttp.client3.logging.{Logger, LoggingBackend}
-import sttp.model.*
 import sttp.tapir.*
 import sttp.tapir.docs.openapi.OpenAPIDocsInterpreter
-import sttp.tapir.json.zio.*
 import sttp.tapir.server.ServerEndpoint
-import sttp.tapir.serverless.aws.lambda.*
+import sttp.tapir.serverless.aws.lambda.{AwsHttp, AwsRequest, AwsRequestContext}
 import zio.*
-import zio.ZIO.attemptBlocking
 import zio.json.*
 
-import scala.concurrent.Future
-import scala.jdk.CollectionConverters.*
+import java.io.{ByteArrayInputStream, ByteArrayOutputStream}
+import java.nio.charset.StandardCharsets
 import scala.util.Try
 
 // this handler contains all the endpoints
-object Handler extends ZIOApiGatewayRequestHandler {
+object Handler
+    extends ZIOApiGatewayRequestHandler(
+      List(
+        AvailableProductMovesEndpoint.server,
+        ProductMoveEndpoint.server,
+        UpdateSupporterPlusAmountEndpoint.server,
+        SubscriptionCancelEndpoint.server,
+      ),
+    )
+
+object HandlerManualTests {
+
+  private val devSubscriptionNumber = "A-S00737111"
 
   @main
   // run this to test locally via console with some hard coded data
-  def testProductMove(): Unit = super.runTest(
+  def testProductMove(): Unit = runTest(
     "POST",
-    "/product-move/A-S123",
-    Some(ProductMoveEndpointTypes.ExpectedInput(49.99, false, None, None).toJson),
+    "/product-move/recurring-contribution-to-supporter-plus/" + devSubscriptionNumber,
+    Some(ProductMoveEndpointTypes.ExpectedInput(49.99, preview = false, None, None).toJson),
   )
 
   @main
   // run this to test locally via console with some hard coded data
-  def testAvailableMoves(): Unit = super.runTest(
+  def testAvailableMoves(): Unit = runTest(
     "GET",
-    "/available-product-moves/A-S123",
+    "/available-product-moves/" + devSubscriptionNumber,
     None,
   )
 
   @main
   // this will output the yaml to the console
   def testDocs(): Unit = {
-    Handler.runTest(
+    runTest(
       "GET",
       "/docs/docs.yaml",
       None,
     )
   }
 
-  // this represents all the routes for the server
-  override val server: List[ServerEndpoint[Any, TIO]] = List(
-    AvailableProductMovesEndpoint.server,
-    ProductMoveEndpoint.server,
-    UpdateSupporterPlusAmountEndpoint.server,
-    SubscriptionCancelEndpoint.server,
-  )
+  @main
+  // this will output the HTML to the console
+  def testDocsHtml(): Unit = {
+    runTest(
+      "GET",
+      "/docs/",
+      None,
+    )
+  }
+
+  @main
+  def testRealDocsRequest(): Unit = {
+    val redactedJson = """{"resource":"/docs","path":"/docs/","httpMethod":"GET","headers":{"accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7","accept-encoding":"gzip, deflate, br","accept-language":"en-GB,en-US;q=0.9,en;q=0.8","cache-control":"max-age=0","Host":"product-move-api-code.support.guardianapis.com","if-modified-since":"Fri, 01 Jan 2010 00:00:00 GMT","if-none-match":"\"blahblah\"","sec-ch-ua":"\"Google Chrome\";v=\"119\", \"Chromium\";v=\"119\", \"Not?A_Brand\";v=\"24\"","sec-ch-ua-mobile":"?0","sec-ch-ua-platform":"\"macOS\"","sec-fetch-dest":"document","sec-fetch-mode":"navigate","sec-fetch-site":"none","sec-fetch-user":"?1","upgrade-insecure-requests":"1","User-Agent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36","X-Amzn-Trace-Id":"blahblah","X-Forwarded-For":"1.2.3.4","X-Forwarded-Port":"443","X-Forwarded-Proto":"https"},"multiValueHeaders":{"accept":["text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7"],"accept-encoding":["gzip, deflate, br"],"accept-language":["en-GB,en-US;q=0.9,en;q=0.8"],"cache-control":["max-age=0"],"Host":["product-move-api-code.support.guardianapis.com"],"if-modified-since":["Fri, 01 Jan 2010 00:00:00 GMT"],"if-none-match":["\"blahblah\""],"sec-ch-ua":["\"Google Chrome\";v=\"119\", \"Chromium\";v=\"119\", \"Not?A_Brand\";v=\"24\""],"sec-ch-ua-mobile":["?0"],"sec-ch-ua-platform":["\"macOS\""],"sec-fetch-dest":["document"],"sec-fetch-mode":["navigate"],"sec-fetch-site":["none"],"sec-fetch-user":["?1"],"upgrade-insecure-requests":["1"],"User-Agent":["Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36"],"X-Amzn-Trace-Id":["blahblah"],"X-Forwarded-For":["1.2.3.4"],"X-Forwarded-Port":["443"],"X-Forwarded-Proto":["https"]},"queryStringParameters":null,"multiValueQueryStringParameters":null,"pathParameters":null,"stageVariables":null,"requestContext":{"resourceId":"blahblah","resourcePath":"/docs","httpMethod":"GET","extendedRequestId":"blahblah","requestTime":"28/Nov/2023:11:48:26 +0000","path":"/docs/","accountId":"1234","protocol":"HTTP/1.1","stage":"CODE","domainPrefix":"product-move-api-code","requestTimeEpoch":1701172106179,"requestId":"blahblah","identity":{"cognitoIdentityPoolId":null,"accountId":null,"cognitoIdentityId":null,"caller":null,"sourceIp":"1.2.3.4","principalOrgId":null,"accessKey":null,"cognitoAuthenticationType":null,"cognitoAuthenticationProvider":null,"userArn":null,"userAgent":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36","user":null},"domainName":"product-move-api-code.support.guardianapis.com","apiId":"blahblah"},"body":null,"isBase64Encoded":false}"""
+    runStringTest(redactedJson)
+  }
+
+  // for testing
+  def runTest(method: String, path: String, testInput: Option[String]): Unit = {
+    val inputValue = makeTestRequest(method, path, testInput)
+    val inputJson = inputValue.asJson(deriveEncoder).spaces2
+    runStringTest(inputJson)
+  }
+
+  def runStringTest(inputJson: String): Unit = {
+    val input = new ByteArrayInputStream(inputJson.getBytes(StandardCharsets.UTF_8))
+    val context = new TestContext()
+    val output: ByteArrayOutputStream = new ByteArrayOutputStream()
+    Handler.handleRequest(input, output, context)
+    val response = new String(output.toByteArray, StandardCharsets.UTF_8)
+    println(s"response was ${response.length} characters long")
+  }
+
+  private def makeTestRequest(method: String, path: String, testInput: Option[String]) = {
+    AwsRequest(
+      rawPath = path,
+      rawQueryString = "",
+      headers = Map.empty,
+      requestContext = AwsRequestContext(
+        domainName = None,
+        http = AwsHttp(
+          method = method,
+          path = path,
+          protocol = "",
+          sourceIp = "",
+          userAgent = "",
+        ),
+      ),
+      body = testInput,
+      isBase64Encoded = false,
+    )
+  }
+
+}
+
+class TestContext() extends Context {
+  override def getAwsRequestId: String = ???
+
+  override def getLogGroupName: String = ???
+
+  override def getLogStreamName: String = ???
+
+  override def getFunctionName: String = ???
+
+  override def getFunctionVersion: String = ???
+
+  override def getInvokedFunctionArn: String = ???
+
+  override def getIdentity: CognitoIdentity = ???
+
+  override def getClientContext: ClientContext = ???
+
+  override def getRemainingTimeInMillis: Int = ???
+
+  override def getMemoryLimitInMB: Int = ???
+
+  override def getLogger: LambdaLogger = new LambdaLogger:
+    override def log(message: String): Unit = {
+      val now = java.time.Instant.now().toString
+      println(s"$now: $message")
+    }
 
+    override def log(message: Array[Byte]): Unit = println(s"LOG BYTES: ${message.toString}")
 }
 
 // called from genDocs command in build.sbt

handlers/product-move-api/src/main/scala/com/gu/productmove/SQS.scala

@@ -44,11 +44,11 @@ object SQS {
 }
 
 object SQSLive {
-  val layer: ZLayer[AwsCredentialsProvider with Stage, ErrorResponse, SQS] =
+  val layer: RLayer[AwsCredentialsProvider & Stage, SQS] =
     ZLayer.scoped(for {
       stage <- ZIO.service[Stage]
       sqsClient <- initializeSQSClient().mapError(ex =>
-        InternalServerError(s"Failed to initialize SQS Client with error: $ex"),
+        new Throwable(s"Failed to initialize SQS Client with error", ex),
       )
       emailQueueName = EmailQueueName.value
       emailQueueUrlResponse <- getQueue(emailQueueName, sqsClient)
@@ -154,14 +154,14 @@ object SQSLive {
   private def getQueue(
       queueName: String,
       sqsAsyncClient: SqsAsyncClient,
-  ): ZIO[Any, ErrorResponse, GetQueueUrlResponse] =
+  ): Task[GetQueueUrlResponse] =
     val queueUrl = GetQueueUrlRequest.builder.queueName(queueName).build()
 
     ZIO
       .fromCompletableFuture(
         sqsAsyncClient.getQueueUrl(queueUrl),
       )
-      .mapError { ex => InternalServerError(s"Failed to get sqs queue name: $queueName, error: ${ex.getMessage}") }
+      .mapError { ex => new Throwable(s"Failed to get sqs queue name: $queueName", ex) }
 
   private def impl(creds: AwsCredentialsProvider): SqsAsyncClient =
     SqsAsyncClient.builder