react-use-query-params

Strongly typed, routing-library agnostic react hook to use and manipulate query params.

Features

1. Strongly Typed
2. Uses Browser's DOM History API
3. Functional Updates
4. Re-renders only when the params you accessed changes.

Installation

# npm
npm install --save react-use-query-params

# pnpm
pnpm add react-use-query-params

Usage

Basic

Behaves very similar to React's useState

import useQueryParams from "react-use-query-params";

function App() {
    const [params, setParams] = useQueryParams();
    
    const clickHandler = () => {
        setParams({
            tomato: 'RED'
        });
    };
    
    return (
        <>
            <div>
                {params.tomato.length // parameters are always arrays of strings
                    ? params.tomato[0]
                    : null}
            </div>
            
            <button onClick={clickHandler}>Update</button>
        </>
    );
}

Type Safety

If you don't want to accidentally access the wrong query param key, you can pass an object as the first generic type argument.

interface QueryParams {
    tomato: string;
    potato: string;
}

const [params, setParams] = useQueryParams<QueryParams>();

params.tomato; // ok
params.potato; // ok
params.mango;  // Type Error

Multiple Values

You can send a string array in any key to setParams

setParams({
    tomato: ['RED', 'ROUND']
});

Replace State

Sending true as the second argument to setParams will use .replaceState() instead of .pushState()

setParams({
    tomato: 'RED'
}, true);

Functional Updates (for Partial Updates)

Similar to React's useState, you can pass a function to setParams.

const [params, setParams] = useQueryParams<QueryParams>();

setParams((params) => {
    return {
        ...params,
        tomato: 'GREEN'
    };
});

Behaviour

The params object is actually a proxy that tracks which query params the rest of your code is interested in. This allows the library to only trigger re-renders those parameters change.

The proxy also accounts for iteration (for (const key in params) { ... }, Object.keys(params), Object.values(params), etc). That means when you iterate over the available keys, if a new query param is added, the component will re-render. The same is true if the query param is removed even if you didn't access the param's value.

License

MIT