2.2.3 • Published 5d ago

@briza/illogical

Licence

MIT

Version

2.2.3

Deps

Size

398 kB

Vulns

Weekly

564

Summary Dependency Versions

illogical

illogical is a JSON DSL (domain-specific language) for expressing and evaluating business rules in the insurance industry. Underwriters use illogical to model business rules for their question sets, enabling distributors to render great user experiences.

npm downloads

Getting Started

Get up and running with illogical in just a few steps.

Installation

# install illogical
npm install @briza/illogical

Basic Usage

// Import the illogical engine
import Engine from '@briza/illogical'

// Create a new instance of the engine
const engine = new Engine()

// Data context
const ctx = {
  name: 'peter',
  age: 21,
  address: {
    city: 'Toronto',
    country: 'Canada',
  },
}

// Evaluate an expression in the given data context
engine.evaluate(['>', '$age', 20], ctx) // true

// Accessing a property
engine.evaluate(['==', '$address.city', 'Toronto'], ctx) // true

// Data Type Casting
engine.evaluate(['==', '$age.(String)', '21'], ctx) // true

// Evaluate a logical expression
engine.evaluate(['AND', ['>', '$age', 20], ['==', '$name', 'peter']]) // true