When creating apps with easily shareable URLs, you often want to encode state as query parameters, but all query parameters must be encoded as strings. useQueryParams
allows you to easily encode and decode data of any type as query parameters with smart memoization to prevent creating unnecessary duplicate objects. It uses serialize-query-params.
Installation
Using npm:
$ npm install --save use-query-params query-string
Note: There is a peer dependency on query-string. For IE11 support, use v5.1.1, otherwise use v6.
Link your routing system (e.g., React Router example, Reach Router example):
import React from 'react';
import ReactDOM from 'react-dom';
import { BrowserRouter as Router, Route } from 'react-router-dom';
import { QueryParamProvider } from 'use-query-params';
import App from './App';
ReactDOM.render(
<Router>
<QueryParamProvider ReactRouterRoute={Route}>
<App />
</QueryParamProvider>
</Router>,
document.getElementById('root')
);
Usage
Be sure to add QueryParamProvider as shown in Installation above.
Add the hook to your component. There are two options: useQueryParam
:
import * as React from 'react';
import { useQueryParam, NumberParam, StringParam } from 'use-query-params';
const UseQueryParamExample = () => {
const [num, setNum] = useQueryParam('x', NumberParam);
const [foo, setFoo] = useQueryParam('foo', StringParam);
return (
<div>
<h1>num is {num}</h1>
<button onClick={() => setNum(Math.random())}>Change</button>
<h1>foo is {foo}</h1>
<button onClick={() => setFoo(`str${Math.random()}`)}>Change</button>
</div>
);
};
export default UseQueryParamExample;
Or useQueryParams
:
import * as React from 'react';
import {
useQueryParams,
StringParam,
NumberParam,
ArrayParam,
withDefault,
} from 'use-query-params';
const UseQueryParamsExample = () => {
const [query, setQuery] = useQueryParams({
x: NumberParam,
q: StringParam,
filters: withDefault(ArrayParam, []),
});
const { x: num, q: searchQuery, filters } = query;
return (
<div>
<h1>num is {num}</h1>
<button onClick={() => setQuery({ x: Math.random() })}>Change</button>
<h1>searchQuery is {searchQuery}</h1>
<h1>There are {filters.length} filters active.</h1>
<button
onClick={() =>
setQuery(
{ x: Math.random(), filters: [...filters, 'foo'], q: 'bar' },
'push'
)
}
>
Change All
</button>
</div>
);
};
export default UseQueryParamsExample;
Or with the higher-order component (HOC) withQueryParams
:
import * as React from 'react';
import {
withQueryParams,
StringParam,
NumberParam,
ArrayParam,
withDefault,
} from 'use-query-params';
const WithQueryParamsExample = ({ query, setQuery }: any) => {
const { x: num, q: searchQuery, filters } = query;
return (
<div>
<h1>num is {num}</h1>
<button onClick={() => setQuery({ x: Math.random() })}>Change</button>
<h1>searchQuery is {searchQuery}</h1>
<h1>There are {filters.length} filters active.</h1>
<button
onClick={() =>
setQuery(
{ x: Math.random(), filters: [...filters, 'foo'], q: 'bar' },
'push'
)
}
>
Change All
</button>
</div>
);
};
export default withQueryParams({
x: NumberParam,
q: StringParam,
filters: withDefault(ArrayParam, []),
}, WithQueryParamsExample);
Or with render props via <QueryParams>
:
import * as React from 'react';
import {
QueryParams,
StringParam,
NumberParam,
ArrayParam,
withDefault,
} from 'use-query-params';
const RenderPropsExample = () => {
const queryConfig = {
x: NumberParam,
q: StringParam,
filters: withDefault(ArrayParam, []),
};
return (
<div>
<QueryParams config={queryConfig}>
{({ query, setQuery }) => {
const { x: num, q: searchQuery, filters } = query;
return (
<>
<h1>num is {num}</h1>
<button onClick={() => setQuery({ x: Math.random() })}>
Change
</button>
<h1>searchQuery is {searchQuery}</h1>
<h1>There are {filters.length} filters active.</h1>
<button
onClick={() =>
setQuery(
{
x: Math.random(),
filters: [...filters, 'foo'],
q: 'bar',
},
'push'
)
}
>
Change All
</button>
</>
);
}}
</QueryParams>
</div>
);
};
export default RenderPropsExample;
Examples
A few basic examples have been put together to demonstrate how useQueryParams
works with different routing systems.
The React Router and Reach Router examples contain simple tests showing how to use the library with React Testing Library.
API
For convenience, use-query-params exports all of the serialize-query-params library.
UrlUpdateType
The UrlUpdateType
is a string type definings the different methods for updating the URL:
'pushIn'
: Push just a single parameter, leaving the rest as is (back button works) (the default)'push'
: Push all parameters with just those specified (back button works)'replaceIn'
: Replace just a single parameter, leaving the rest as is'replace'
: Replace all parameters with just those specified
Param Types
See all param definitions from serialize-query-params here. You can define your own parameter types by creating an object with an encode
and a decode
function. See the existing definitions for examples.
Note that all null and empty values are typically treated as follows:
value | encoding |
---|
null | ?qp |
"" | ?qp= |
undefined | ? (removed from URL) |
Examples in this table assume query parameter named qp
.
Param | Type | Example Decoded | Example Encoded |
---|
StringParam | string | 'foo' | ?qp=foo |
NumberParam | number | 123 | ?qp=123 |
ObjectParam | { key: string } | { foo: 'bar', baz: 'zzz' } | ?qp=foo-bar_baz-zzz |
ArrayParam | string[] | ['a','b','c'] | ?qp=a&qp=b&qp=c |
JsonParam | any | { foo: 'bar' } | ?qp=%7B%22foo%22%3A%22bar%22%7D |
DateParam | Date | Date(2019, 2, 1) | ?qp=2019-03-01 |
BooleanParam | boolean | true | ?qp=1 |
NumericObjectParam | { key: number } | { foo: 1, bar: 2 } | ?qp=foo-1_bar-2 |
DelimitedArrayParam | string[] | ['a','b','c'] | ?qp=a_b_c' |
DelimitedNumericArrayParam | number[] | [1, 2, 3] | ?qp=1_2_3' |
Example
import { ArrayParam, useQueryParam, useQueryParams } from 'use-query-params';
const [foo, setFoo] = useQueryParam('foo', ArrayParam);
const [query, setQuery] = useQueryParams({ foo: ArrayParam });
Example with Custom Param
You can define your own params if the ones shipped with this package don't work for you. There are included serialization utility functions to make this easier, but you can use whatever you like.
import {
encodeDelimitedArray,
decodeDelimitedArray
} from 'use-query-params';
const CommaArrayParam = {
encode: (array: string[] | null | undefined) =>
encodeDelimitedArray(array, ','),
decode: (arrayStr: string | string[] | null | undefined) =>
decodeDelimitedArray(arrayStr, ',')
};
useQueryParam
useQueryParam<T>(name: string, paramConfig: QueryParamConfig<T>, rawQuery?: ParsedQuery):
[T | undefined, (newValue: T, updateType?: UrlUpdateType) => void]
Given a query param name and query parameter configuration { encode, decode }
return the decoded value and a setter for updating it.
The setter takes two arguments (newValue, updateType)
where updateType
is one of 'pushIn' | 'push' | 'replaceIn' | 'replace'
, defaulting to
'pushIn'
.
You may optionally pass in a rawQuery object, otherwise the query is derived
from the location in the context.
Example
import { useQueryParam, NumberParam } from 'use-query-params';
const [foo, setFoo] = useQueryParam('foo', NumberParam);
setFoo(500);
setFoo(123, 'push');
setFoo(undefined)
setFoo((latestFoo) => latestFoo + 150)
useQueryParams
useQueryParams<QPCMap extends QueryParamConfigMap>(paramConfigMap: QPCMap):
[DecodedValueMap<QPCMap>, SetQuery<QPCMap>]
Given a query parameter configuration (mapping query param name to { encode, decode }
),
return an object with the decoded values and a setter for updating them.
The setter takes two arguments (newQuery, updateType)
where updateType
is one of 'pushIn' | 'push' | 'replaceIn' | 'replace'
, defaulting to
'pushIn'
.
Example
import { useQueryParams, StringParam, NumberParam } from 'use-query-params';
const [query, setQuery] = useQueryParams({ foo: NumberParam, bar: StringParam });
setQuery({ foo: 500 })
setQuery({ foo: 123, bar: 'zzz' }, 'push');
setQuery({ foo: undefined })
setQuery((latestQuery) => ({ foo: latestQuery.foo + 150 }))
Example with Custom Parameter Type
Parameter types are just objects with { encode, decode }
functions. You can
provide your own if the provided ones don't work for your use case.
import { useQueryParams } from 'use-query-params';
const MyParam = {
encode(value) {
return `${value * 10000}`;
},
decode(strValue) {
return parseFloat(strValue) / 10000;
}
}
const [query, setQuery] = useQueryParams({ foo: MyParam });
setQuery({ foo: 99 })
withQueryParams
withQueryParams<QPCMap extends QueryParamConfigMap, P extends InjectedQueryProps<QPCMap>>
(paramConfigMap: QPCMap, WrappedComponent: React.ComponentType<P>):
React.FC<Diff<P, InjectedQueryProps<QPCMap>>>
Given a query parameter configuration (mapping query param name to { encode, decode }
) and
a component, inject the props query
and setQuery
into the component based on the config.
The setter takes two arguments (newQuery, updateType)
where updateType
is one of 'pushIn' | 'push' | 'replaceIn' | 'replace'
, defaulting to
'pushIn'
.
Example
import { withQueryParams, StringParam, NumberParam } from 'use-query-params';
const MyComponent = ({ query, setQuery, ...others }) => {
const { foo, bar } = query;
return <div>foo = {foo}, bar = {bar}</div>
}
export default withQueryParams({ foo: NumberParam, bar: StringParam }, MyComponent);
Note there is also a variant called withQueryParamsMapped
that allows you to do a react-redux style mapStateToProps equivalent. See the code or this example for details.
QueryParams
<QueryParams config={{ foo: NumberParam }}>
{({ query, setQuery }) => <div>foo = {query.foo}</div>}
</QueryParams>
Given a query parameter configuration (mapping query param name to { encode, decode }
) and
a component, provide render props query
and setQuery
based on the config.
The setter takes two arguments (newQuery, updateType)
where updateType
is one of 'pushIn' | 'push' | 'replaceIn' | 'replace'
, defaulting to
'pushIn'
.
encodeQueryParams
encodeQueryParams<QPCMap extends QueryParamConfigMap>(
paramConfigMap: QPCMap,
query: Partial<DecodedValueMap<QPCMap>>
): EncodedQueryWithNulls
Convert the values in query to strings via the encode functions configured
in paramConfigMap. This can be useful for constructing links using decoded
query parameters.
Example
import { encodeQueryParams, NumberParam } from 'use-query-params';
import { stringify } from 'query-string';
const encodedQuery = encodeQueryParams({ foo: NumberParam }, { foo });
const link = `/?${stringify(encodedQuery)}`;
QueryParamProvider
<QueryParamProvider ReactRouterRoute={Route}><App /></QueryParamProvider>
<QueryParamProvider reachHistory={globalHisory}><App /></QueryParamProvider>
<QueryParamProvider history={myCustomHistory}><App /></QueryParamProvider>
const stringifyOptions = { encode: false }
<QueryParamProvider ReactRouterRoute={Route} stringifyOptions={stringifyOptions}>
<App />
</QueryParamProvider>
import {
ExtendedStringifyOptions,
transformSearchStringJsonSafe,
} from 'use-query-params';
const stringifyOptions: ExtendedStringifyOptions = {
transformSearchString: transformSearchStringJsonSafe,
};
<QueryParamProvider ReactRouterRoute={Route} stringifyOptions={stringifyOptions}>
<App />
</QueryParamProvider>
The QueryParamProvider component links your routing library's history to
the useQueryParams hook. It is needed for the hook to be able to update
the URL and have the rest of your app know about it.
See the tests or these examples for how to use it:
Example (Reach Router)
import React from 'react';
import ReactDOM from 'react-dom';
import { globalHistory, Router } from '@reach/router';
import { QueryParamProvider } from 'use-query-params';
import App from './App';
ReactDOM.render(
<QueryParamProvider reachHistory={globalHistory}>
<Router>
<App default />
</Router>
</QueryParamProvider>,
document.getElementById('root')
);
Development
Run the typescript compiler in watch mode:
npm run dev
You can run an example app:
npm link
cd examples/react-router
npm install
npm link use-query-params
npm start