Compar
Extensible declarative rule matching engine
Compar provides an easy way to decouple rules from code, and it is ideal for
creating custom engines for experiments, feature flags, tutorials, etc. Compar
is written in TypeScript and it runs in the browser, or on the server using
node.js.
Setup
yarn add compar
or
npm install --save compar
Usage
Before you start import the library
import { create } from "compar";
Basic usage
const match = create();
match(
[
"&",
[".", "environment", ["|", ["=", "stage"], ["=", "production"]]],
[
".",
"userId",
[
"|",
["=", "45654800-7a3a-4273-b1cb-4eace4086cce"],
["=", "5137c85d-a4d0-4d6c-8d85-0a74a24007c8"],
],
],
],
{
environment: "stage",
userId: "45654800-7a3a-4273-b1cb-4eace4086cce",
},
);
License
MIT