https://github.com/itaysk/prego

prego - pipe into rego
https://github.com/itaysk/prego

Last synced: 26 days ago
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prego - pipe into rego

• Host: GitHub
• URL: https://github.com/itaysk/prego
• Owner: itaysk
• Created: 2020-04-22T12:19:19.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-12-22T17:04:41.000Z (almost 4 years ago)
• Last Synced: 2024-06-19T14:58:08.979Z (5 months ago)
• Language: Go
• Size: 46.9 KB
• Stars: 2
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: Readme.md

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README

        
Prego - Pipe into Rego

Prego is a stream processing cli tool that takes JSON from stdin, and processes it using [Rego](https://www.openpolicyagent.org/docs/latest/policy-language/) (the [Open Policy Agent](https://www.openpolicyagent.org/) language). It is inspired by [AWK](https://en.wikipedia.org/wiki/AWK) and can be thought of an AWK/Rego hybrid.

## Getting Prego

Currently you have to build from source. Clone the repo and run `make build`.

## Getting Started

Let's try Prego with the included example in [test/example.rego](test/example.rego). This is an example that:

1. Prints the time when it started and finished.

2. Looks in the input json for `.foo` elements which have a value of `bar`.

  1. Those items will be printed out.

3. Looks in the input json for `.hello` elements.

  1. For those items it will print the value of `.hello` in uppercase letters.

4. Every other items that doesn't match those conditions will be ignored (not printed).

Run `prego -f test/example.rego`, and type input documents (as JSON), or use the example data: `prego -f test/example.rego