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fold Origami


[![Build Status](https://travis-ci.org/ambiata/origami.png)](https://travis-ci.org/ambiata/origami)

The origami project provides "Monadic folds" to process streams of data in a composable fashion.

With monadic folds you can:

  • accumulate state, for example count the number of elements or compute a hash value

  • output results to a file or a database as you compute them

  • display the end value on the console

Moreover folds are composable:

  • you can implement and test folds independently from the data stream they will be used on

  • you can run two folds at the same time without having to make two passes over the data stream

  • you can add side-effects like writing results to a file later on if you need to

Finally, side-effecting folds like Sinks are operating inside a SafeT monad to make sure that resources are always released, even when there are exceptions.

Read the documentation for more information.

Installation

Add the following to your build.sbt file:

resolvers += Resolver.url("ambiata-oss", new URL("https://ambiata-oss.s3.amazonaws.com"))(Resolver.ivyStylePatterns)

libraryDependencies += "com.ambiata" %% "origami" % "1.0"

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Monadic folds for Scala

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