json-query-string

Converts JSON objects to/from a minimal query string format.

Advantages over regular query strings

• Can take arbitrary JSONable objects
• Preserves "null", "undefined" values
• Preserves type of values: numbers vs strings vs boolean

Usage

Basic use:

    var queryString = jsonQueryStringify({foo:"bar", baz: 3}); //{foo=%22bar%22&baz=3}, displays in browser as {foo="bar"&baz=3}
    var url = "http://mysite.org?" + queryString;
    //Later...
    jsonQueryParse(queryString); //Original object
    //Non-alphanumeric properties will be quoted:
    jsonQueryStringify({'"&={}':34.5}); //{%22%5C%22%26%3D%7B%7D%22=34.5}, displays in browser as {"%5C"%26%3D%7B%7D"=34.5} - ugly but workable

For an even leaner query string, assuming your query is an object:

    var queryString = jsonQueryStringifyObjectBare({foo:"bar", baz: 3}); //foo=%22bar%22&baz=3, displays in browser as foo="bar"&baz=3
    jsonQueryParseObjectBare(queryString);

For use in React router:

export const routerHistory = useRouterHistory(...)({ parseQueryString: jsonQueryParseObjectBare, stringifyQuery: jsonQueryStringifyObjectBare});

Format

JSON.parse(JSON.stringify(value)) should always equal jsonQueryParse(jsonQueryStringify(value)), with one exception: If an object has undefined values, jsonQueryStringify() preserves their presence. For example, JSON stringify translates {foo:undefined} to {}, while jsonQueryStringify translates to {foo:undefined}.