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Programming language: Rust
License: MIT License
Tags: Parser     Web     URL     JSON    
Latest version: v2.0.2

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README

What is Queryst?

This is a fork of the original, with serde and serde_json updated to 0.9

Build Status

A query string parsing library for Rust inspired by https://github.com/hapijs/qs. A part of REST-like API micro-framework Rustless.

# Cargo.toml

[dependencies]
queryst = "1"

API docs

Usage

Use queryst library to parse query-string to corresponding json values.

use queryst::parse;

// will contain result as Json value
let object = parse("foo[0][a]=a&foo[0][b]=b&foo[1][a]=aa&foo[1][b]=bb");

Description

queryst allows you to create nested objects within your query strings, by surrounding the name of sub-keys with square brackets []. or example, the string 'foo[bar]=baz' converts to this JSON:

{
  "foo": {
    "bar": "baz"
  }
}

URI encoded strings work too:

parse('a%5Bb%5D=c');
// { "a": { "b": "c" } }

You can also nest your objects, like 'foo[bar][baz]=foobarbaz':

{
  "foo": {
    "bar": {
      "baz": "foobarbaz"
    }
  }
}

Parsing Arrays

queryst can also parse arrays using a similar [] notation:

parse('a[]=b&a[]=c');
// { "a": ["b", "c"] }

You may specify an index as well:

parse('a[0]=c&a[1]=b');
// { "a": ["c", "b"] }

Note that the only difference between an index in an array and a key in an object is that the value between the brackets must be a number to create an array.

queryst does't allow to specify sparse indexes on arrays and will convert target array to object:

parse('a[1]=b&a[15]=c');
// { "a": {"1": "b", "15": "c"} }

Also if you mix notations, queryst will merge the two items into an object:

parse('a[0]=b&a[b]=c');
// { "a": { "0": "b", "b": "c" } }

You can also create arrays of objects:

parse('a[][b]=c');
// { "a": [{ "b": "c" }] }