datalogic-rs

A Rust implementation of JSONLogic that provides a way to write portable logic rules as JSON.

Overview

datalogic-rs implements the complete JSONLogic specification, allowing you to create, share, and evaluate rules across different platforms while staying true to Rust's safety and performance principles.

Installation

Add to your Cargo.toml:

[dependencies]
datalogic-rs = "0.1.0"

Quick Example

use datalogic_rs::JsonLogic;
use serde_json::json;

fn main() {
    let logic = JsonLogic::new();
    
    // Rule: Check if user is 21 or older
    let rule = json!({
        ">=" : [
            {"var": "age"},
            21
        ]
    });
    
    // Data to evaluate
    let data = json!({
        "age": 25
    });

    let result = logic.apply(&rule, &data).unwrap();
    assert_eq!(result, json!(true));
}

Supported Operations

This implementation supports all standard JSONLogic operations including:

Basic operators (==, ===, !=, !==, >, >=, <, <=)
Logic operators (!, !!, or, and, if)
Numeric operations (+, -, *, /, %)
Array operations (

map

, reduce, filter, all, none, some, merge)

String operations (cat, substr)
Data access (

var

)

For detailed documentation of operations and examples, visit jsonlogic.com.

Features

✅ Complete implementation of JSONLogic specification
🚀 Zero-copy JSON deserialization
🛡️ Type-safe rule evaluation
🧪 Comprehensive test suite matching official JSONLogic tests

Testing

The library includes a comprehensive test suite that verifies compatibility with the official JSONLogic test cases:

cargo test

datalogic-rs 1.0.1