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📖 Geschichte (/ɡəˈʃɪçtə/)

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Geschichte (german for History / Story / Tale) Let's you manage query-parameters with hooks. Uses immer and zustand to manage the internal state.

Documentation & Demo: https://bowlingx.github.io/geschichte/index.html

API: https://bowlingx.github.io/geschichte/api/index.html

yarn add geschichte

npm install geschichte

Basic Example

import { pm, factoryParameters, serializers } from 'geschichte'
import { GeschichteWithHistory } from 'geschichte/historyjs'
import { createBrowserHistory } from 'history'

const parameterConfig = {
  item: pm(
    'queryParameter',
    serializers.string /** a basic collection of serializers is availble, like date, int, float, arrays */,
    (value?: V, initialValue?: V) =>
      boolean /** define an optional skip function which will determine if the parameter will be included in the url or not */
  ),
  /* ... more keys, any depth. */
}

// default value is either an object or a factory () => defaultValue
const defaultValue = {
  item: 'defaultValue' /** it automatically skips null or default values*/,
}

// exports a hook (`useQuery`), and
// utility methods `createQueryString` that let's you create a query string based on the described object anywhere outside of components etc.
// `parseQueryString` let's you parse a query string into an object as defined in the `parameterConfig`.
const { useQuery, createQueryString, parseQueryString } = factoryParameters(
  parameterConfig,
  defaultValue /** optional namespace, (creates a prefix separated by a dot)*/
)

const Component = () => {
  const {
    values,
    pushState,
    replaceState,
    resetPush,
    resetReplace,
    createQueryString,
    batchReplaceState,
    batchPushState,
  } = useQuery()
  return (
    <>
      <button
        onClick={() => pushState((values) => void (values.item = 'newValue'))}
      >
        push new state
      </button>
      <button
        onClick={() =>
          replaceState((values) => void (values.item = 'anotherOne'))
        }
      >
        replace state
      </button>
      <button onClick={resetPush}>reset (push) to defaults</button>
      <button onClick={resetReplace}>reset (replace) to defaults</button>
      <div>{JSON.stringify(values)}</div>
      <div>The current queryString: {createQueryString()}</div>
    </>
  )
}

const App = () => (
  <GeschichteWithHistory history={createBrowserHistory()}>
    <Component />
  </GeschichteWithHistory>
)

Concept

Geschichte let's you describe and serialize an arbitrary object of any depth to your browsers query and history. It takes care of updating the next state and current query in a efficient way using immerjs. It works on both the browser and server side (with createMemoryHistory)

Naming

I was inspired by immer and zustand, so I picked a fitting german name :).

Agenda

  • Add more tests
  • Propper examples and documentation of the full API
  • Describe Use-Cases

Compability

It works out of the box with react-router (by providing the same history instance).

Using with next.js

Nextjs support is build in, but requires a different Adapter.

With page router

/** _app.tsx */

import React, { memo } from 'react'
import GeschichteForNextjs from 'geschichte/nextjs'
import type { AppProps } from 'next/app'

function App({ Component, pageProps }: AppProps) {
  return (
    <GeschichteForNextjs>
      <Component {...pageProps} />
    </GeschichteForNextjs>
  )
}

export default memo(App)

With App router

You can use Geschichte with the app router as well (from nextjs 13).

/** page.tsx */

import Geschichte from 'geschichte/nextjs-app-router'
import MoreComponentsWithClientSideState from '@/components/ClientComponents'

export default function Home() {
  return (
    <main>
      <header>My header</header>
      <Geschichte>
        <MoreComponentsWithClientSideState />
      </Geschichte>
      <footer>My footer</footer>
    </main>
  )
}