# jsonlogic_rs   [![Build Status]][github] [![Latest Version]][crates.io]

[Build Status]: https://github.com/marvindv/jsonlogic_rs/workflows/build/badge.svg?branch=master
[github]: https://github.com/marvindv/jsonlogic_rs
[Latest Version]: https://img.shields.io/crates/v/jsonlogic.svg
[crates.io]: https://crates.io/crates/jsonlogic

**A [JsonLogic](http://jsonlogic.com/) implementation in Rust.**

To use this library, add

```toml
[dependencies]
jsonlogic = "0.5"
```

to your `Cargo.toml`.

## Usage

```rust
use serde_json::{json, Value};

let rule = json!({
    "===": [
        2,
        { "var": "foo" }
    ]
});

let data = json!({ "foo": 2 });
assert_eq!(jsonlogic::apply(&rule, &data), Ok(Value::Bool(true)));

let data = json!({ "foo": 3 });
assert_eq!(jsonlogic::apply(&rule, &data), Ok(Value::Bool(false)));
```

See the [`examples`](https://github.com/marvindv/jsonlogic_rs/tree/master/examples) directory for more usage examples.

## Operations

**jsonlogic_rs** supports all JsonLogic operations. For detailed informations about all operations and their arguments, head over to [Supported Operations](http://jsonlogic.com/operations.html) on
[jsonlogic.com](http://jsonlogic.com/).

For Rust usage examples and edge cases have a look at the linked tests for each operator below.

* Accessing Data
    - [`var`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/data_access.rs#L4)
    - [`missing`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/data_access.rs#L89)
    - [`missing_some`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/data_access.rs#L117)
* Logic and Boolean Operations
    - [`if`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/logic_and_boolean.rs#L4)
    - [`==`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/logic_and_boolean.rs#L20)
    - [`===`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/logic_and_boolean.rs#L76)
    - [`!=`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/logic_and_boolean.rs#L128)
    - [`!==`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/logic_and_boolean.rs#L190)
    - [`!`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/logic_and_boolean.rs#L249)
    - [`!!`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/logic_and_boolean.rs#L272)
    - [`or`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/logic_and_boolean.rs#L294)
    - [`and`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/logic_and_boolean.rs#L383)
* Numeric Operations
    - [`>`, `>=`, `<`, and `<=`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/numeric.rs#L5)
    - Between ([exclusive](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/numeric.rs#L25), [inclusive](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/numeric.rs#L41))
    - [`max`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/numeric.rs#L62) and [`min`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/numeric.rs#L57)
    - Arithmetic, [`+`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/numeric.rs#L74) [`-`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/numeric.rs#L84) [`*`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/numeric.rs#L91) [`/`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/numeric.rs#L104)
    - [`%`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/numeric.rs#L118)
* Array Operations
    - [`map`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/array.rs#L52), [`reduce`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/array.rs#L94) and [`filter`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/array.rs#L69)
    - [`all`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/array.rs#L134), [`none`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/array.rs#L237) and [`some`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/array.rs#L179)
    - [`merge`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/array.rs#L5)
    - [`in`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/array.rs#L41)
* String Operations
    - [`in`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/string.rs#L4)
    - [`cat`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/string.rs#L18)
    - [`substr`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/string.rs#L35)
* Miscellaneous
    - [`log`](https://github.com/marvindv/jsonlogic_rs/blob/master/tests/misc.rs#L5)