1 stable release
Uses old Rust 2015
2.0.0 | Jun 14, 2017 |
---|
#30 in #encoded-string
Used in backtalk
16KB
392 lines
What is Queryst?
This is a fork of the original, with serde and serde_json updated to 0.9
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"
Usage
Use queryst library to parse query-string to corresponding json values.
use query::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" }] }
Dependencies
~6.5MB
~152K SLoC