# graphql-minify

This is a re-implementation of [`stripIgnoredCharacters`](https://graphql-js.org/api/function/stripignoredcharacters/) from the [GraphQL.js reference implementation](https://github.com/graphql/graphql-js) in Rust. It uses [Logos](https://github.com/maciejhirsz/logos) for tokenization.

All relevant tests are ported from the reference implementation and run against the Rust implementation.

Beware: It does _not test for validity_ of the GraphQL document, its sole purpose is to minify the document as much as possible.

[**⚡️ Demo built with WASM**](http://graphql-minify.daniellehr.de)

<details>
<summary>Details</summary>

> Strips characters that are not significant to the validity or execution of a GraphQL document:
>
>- UnicodeBOM
>- WhiteSpace
>- LineTerminator
>- Comment
>- Comma
>- BlockString indentation
>
>Note: It is required to have a delimiter character between neighboring non-punctuator tokens and this function always uses single space as delimiter.
>
>It is guaranteed that both input and output documents if parsed would result in the exact same AST except for nodes location.
</details>

## Usage

~~~rust
use graphql_minify::minify;

fn main() {
  let minified = minify("query { user { id name } }");

  assert_eq!(minified.unwrap(), "query{user{id name}}");
}
~~~