Scanamo

Simpler DynamoDB access for Scala

Programming language: Scala

License: Apache License 2.0

Tags: Database    

Latest version: v1.0.0-M9

README

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Scanamo is a library to make using DynamoDB with Scala simpler and less error-prone.

The main focus is on making it easier to avoid mistakes and typos by leveraging Scala's type system and some higher level abstractions.

Installation

libraryDependencies += "org.scanamo" %% "scanamo" % "1.0.0-M10"

Scanamo is published for Scala 2.13 and Scala 2.12.

Basic Usage

Note: the LocalDynamoDB object is provided by the scanamo-testkit package.

scala> import org.scanamo._
scala> import org.scanamo.syntax._
scala> import org.scanamo.generic.auto._

scala> val client = LocalDynamoDB.client()
scala> import software.amazon.awssdk.services.dynamodb.model.ScalarAttributeType._
scala> val farmersTableResult = LocalDynamoDB.createTable(client)("farmer")("name" -> S)

scala> case class Farm(animals: List[String])
scala> case class Farmer(name: String, age: Long, farm: Farm)
scala> val table = Table[Farmer]("farmer")

scala> val ops = for {
     |   _ <- table.putAll(Set(
     |       Farmer("McDonald", 156L, Farm(List("sheep", "cow"))),
     |       Farmer("Boggis", 43L, Farm(List("chicken")))
     |     ))
     |   mcdonald <- table.get("name" -> "McDonald")
     | } yield mcdonald
scala> Scanamo.exec(client)(ops)
res1: Option[Either[error.DynamoReadError, Farmer]] = Some(Right(Farmer(McDonald,156,Farm(List(sheep, cow)))))

For more details, please see the Scanamo site.

License

Scanamo is licensed under the Apache License, Version 2.0 (the "License"); you may not use this software except in compliance with the License.

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.