https://github.com/tonivade/purecfg

Pure Functional Configuration Library
https://github.com/tonivade/purecfg

configuration experimental functional-programming java purefun

Last synced: 17 days ago
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Pure Functional Configuration Library

• Host: GitHub
• URL: https://github.com/tonivade/purecfg
• Owner: tonivade
• License: mit
• Created: 2020-02-02T19:01:19.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2024-10-22T05:52:07.000Z (25 days ago)
• Last Synced: 2024-10-23T05:56:40.058Z (24 days ago)
• Topics: configuration, experimental, functional-programming, java, purefun
• Language: Java
• Size: 670 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# PureCFG

Inspired by this [presentation](https://github.com/jdegoes/scalaworld-2015/blob/master/presentation.md)

## Objectives

- Create a pure functional library to load configuration from different sources, like properties files, json, yaml or any other source. 

- Allow to switch from sources without changing the program.

- Self documented.

- Type safe.

Now it supports properties and toml files.

## Example

```toml

[server]

  host = "localhost"

  port = 8080

```

```java

record HostAndPort(String host, Integer port) { }

var readHostAndPort = PureCFG.map2(PureCFG.readString("host"), PureCFG.readInt("port"), HostAndPort::new);

var program = PureCFG.readConfig("server", readHostAndPort);

var config = program.unsafeRun(Source.fromToml("config.toml"));

assertEquals(new HostAndPort("localhost", 8080), config);

```

## License

Distributed under MIT License