useParsed

useParsed memo is not stable

13 Replies

Hi @Joe Gaffney. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave: ---------------------- Based on the information provided in the knowledge sources, I can address your question about useParsed in refine. However, I don't have specific information about useParsed memo stability issues. Let me explain what I know about useParsed: useParsed is a hook provided by refine that allows you to access URL and query parameters, along with inferred resource, action, and id from the URL. It leverages the parse method of the routerProvider according to the refine documentation (https://refine.dev/docs/routing/hooks/use-parsed/). Here's an example of how to use useParsed:

import { useParsed } from "@refinedev/core";  

type MyParams = {  
  someParam: string;  
};  

const MyComponent = () => {  
  const {  
    resource,  
    action,  
    id,
    pathname,  
    params: {  
      filters,  
      sorters,  
      current,  
      pageSize,  
      ...restParams // TParams - Any other parameters are also parsed and available in `params`  
    },  
  } = useParsed<MyParams>();  

  /* ... */  
};

import { useParsed } from "@refinedev/core";  

type MyParams = {  
  someParam: string;  
};  

const MyComponent = () => {  
  const {  
    resource,  
    action,  
    id,
    pathname,  
    params: {  
      filters,  
      sorters,  
      current,  
      pageSize,  
      ...restParams // TParams - Any other parameters are also parsed and available in `params`  
    },  
  } = useParsed<MyParams>();  

  /* ... */  
};

This hook provides access to various parsed elements from the URL, including resource, action, id, pathname, and other parameters like filters, sorters, current page, and page size. Regarding the stability of useParsed memo, I don't have specific information about any instability issues. If you're experiencing problems with memoization related to useParsed, it might be worth investigating if the issue is related to how the hook is being used in your specific context, or if there are any known issues in the version of refine you're using. If you need more specific information about stability issues or memoization problems with useParsed, I recommend checking the official refine documentation or reaching out to the refine community for more targeted assistance. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@422289470487003153> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

equal-aquaOP•6d ago

@kapa.ai it seems to chanage on each redraw using results from it are not stable

  const { params } = useParsed();
  
  const combinedFilters = useMemo(() => {
    const parsedFilters = params?.filters || [];
    console.log("parsedFilters", parsedFilters);
    return [...parsedFilters, ...additionalFilters];
  }, [params, additionalFilters]);

  const { params } = useParsed();
  
  const combinedFilters = useMemo(() => {
    const parsedFilters = params?.filters || [];
    console.log("parsedFilters", parsedFilters);
    return [...parsedFilters, ...additionalFilters];
  }, [params, additionalFilters]);

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on the information provided in the knowledge sources and your code snippet, I can see why you're experiencing stability issues with useParsed. Let me explain the problem and suggest a potential solution. The issue you're facing is related to the one-way binding nature of refine's syncWithLocation feature, which affects how useParsed behaves. According to the refine GitHub issue discussion (https://github.com/refinedev/refine/issues/6300), the useParsed hook (which is part of the useTable implementation) only infers parameters at initial render to avoid syncing issues between the state and query params. This means that changes in query parameters that don't cause a re-mount of the hook are not synced with the internal states. As a result, the params object returned by useParsed might change on each redraw, causing instability in your memoized combinedFilters. To address this issue, you can implement a workaround using useEffect to manually sync the changes in query params with your component's state. Here's how you can modify your code:

import { useParsed, useTable } from "@refinedev/core";
import { useMemo, useEffect } from "react";

const YourComponent = () => {
  const { params } = useParsed();
  const { setFilters } = useTable();

  useEffect(() => {
    if (!params.filters) {
      setFilters([], "replace");
    }
  }, [params, setFilters]);

  const combinedFilters = useMemo(() => {
    const parsedFilters = params?.filters || [];
    console.log("parsedFilters", parsedFilters);
    return [...parsedFilters, ...additionalFilters];
  }, [params, additionalFilters]);

  // Rest of your component logic
};

import { useParsed, useTable } from "@refinedev/core";
import { useMemo, useEffect } from "react";

const YourComponent = () => {
  const { params } = useParsed();
  const { setFilters } = useTable();

  useEffect(() => {
    if (!params.filters) {
      setFilters([], "replace");
    }
  }, [params, setFilters]);

  const combinedFilters = useMemo(() => {
    const parsedFilters = params?.filters || [];
    console.log("parsedFilters", parsedFilters);
    return [...parsedFilters, ...additionalFilters];
  }, [params, additionalFilters]);

  // Rest of your component logic
};

This solution is based on the workaround suggested in the GitHub issue comments (https://github.com/refinedev/refine/issues/6300). It uses useEffect to check for changes in the params object and updates the filters accordingly using the setFilters function from useTable. Additionally, to optimize performance, you might want to consider using useMemo for expensive calculations or object creations, as suggested in the refine blog post about React useMemo (https://refine.dev/blog/react-usememo/#use-usememo-for-derived-state). However, be cautious not to overuse it and only apply where performance gain is significant. Keep in mind that this is a workaround, and the refine team has mentioned that they're aware of this issue and are considering a more comprehensive solution in the future. For now, this approach should help stabilize your combinedFilters calculation. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@422289470487003153> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

equal-aquaOP•6d ago

@kapa.ai its not so much about updating it is more that its not consitent and cant be used in additional memos. The hook internally trys to memo import React from "react"; import { useParse } from "../use-parse"; export const useParsed = < TParams extends Record<string, any> = Record<string, any>, >() => { const parse = useParse(); const parsed = React.useMemo(() => parse<TParams>(), [parse]); return parsed; };

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Thank you for providing more context about the useParsed hook implementation. Based on the code snippet you've shared, I can see why you're experiencing consistency issues when using the results in additional memos. Let's analyze the problem and discuss potential solutions. The useParsed hook implementation you've shown does use React.useMemo, but there are a couple of potential issues: 1. The dependency array of useMemo only includes parse, which is likely a stable reference (assuming useParse returns a memoized function). This means the memoized value will only be recalculated if parse changes, which may not happen often or at all. 2. The parse function itself might be returning a new object on each call, even if the parsed values haven't changed. This could lead to inconsistent results when used in additional memos. To address these issues and make useParsed more consistent for use in additional memos, you could consider the following approaches: 1. Include relevant dependencies in the useMemo dependency array:

export const useParsed = <
  TParams extends Record<string, any> = Record<string, any>,
>() => {
  const parse = useParse();
  const location = useLocation(); // Assuming you're using a router with a location object

  const parsed = React.useMemo(() => parse<TParams>(), [parse, location]);

  return parsed;
};

export const useParsed = <
  TParams extends Record<string, any> = Record<string, any>,
>() => {
  const parse = useParse();
  const location = useLocation(); // Assuming you're using a router with a location object

  const parsed = React.useMemo(() => parse<TParams>(), [parse, location]);

  return parsed;
};

This way, the parsed result will be recalculated when the location changes, which is likely what you want. 2. Implement deep comparison of the parsed result:

import React from "react";
import { useParse } from "../use-parse";
import { useDeepCompareMemo } from "use-deep-compare";

export const useParsed = <
  TParams extends Record<string, any> = Record<string, any>,
>() => {
  const parse = useParse();
const parsed = useDeepCompareMemo(() => parse<TParams>(), [parse]);

  return parsed;
};

import React from "react";
import { useParse } from "../use-parse";
import { useDeepCompareMemo } from "use-deep-compare";

export const useParsed = <
  TParams extends Record<string, any> = Record<string, any>,
>() => {
  const parse = useParse();
const parsed = useDeepCompareMemo(() => parse<TParams>(), [parse]);

  return parsed;
};

This approach uses a custom hook like useDeepCompareMemo (you'd need to implement this or use a library that provides it) to ensure that the memoized value only changes when the deeply compared result of parse changes. 3. Memoize individual properties instead of the entire parsed object:

import React from "react";
import { useParse } from "../use-parse";

export const useParsed = <
  TParams extends Record<string, any> = Record<string, any>,
>() => {
  const parse = useParse();
  const rawParsed = parse<TParams>();

  const memoizedParsed = {
    resource: React.useMemo(() => rawParsed.resource, [rawParsed.resource]),
    action: React.useMemo(() => rawParsed.action, [rawParsed.action]),
    id: React.useMemo(() => rawParsed.id, [rawParsed.id]),
    // ... memoize other properties as needed
  };

  return memoizedParsed;
};

import React from "react";
import { useParse } from "../use-parse";

export const useParsed = <
  TParams extends Record<string, any> = Record<string, any>,
>() => {
  const parse = useParse();
  const rawParsed = parse<TParams>();

  const memoizedParsed = {
    resource: React.useMemo(() => rawParsed.resource, [rawParsed.resource]),
    action: React.useMemo(() => rawParsed.action, [rawParsed.action]),
    id: React.useMemo(() => rawParsed.id, [rawParsed.id]),
    // ... memoize other properties as needed
  };

  return memoizedParsed;
};

This approach memoizes individual properties, which can be more stable when used in additional memos. These solutions aim to make the useParsed hook more consistent and suitable for use in additional memos. However, keep in mind that the best approach may depend on your specific use case and the overall architecture of your application. If these solutions don't fully resolve your issue, you might want to consider raising this concern in the refine GitHub repository (https://github.com/refinedev/refine) for more tailored assistance from the maintainers. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@422289470487003153> Kapa.ai is still learning and improving, please let me know how I did by reacting below.

equal-aquaOP•6d ago

@kapa.ai is there something maybe in the router provider i am using react router

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- Based on your question about the router provider and your mention of using React Router, I can provide some information about how refine integrates with React Router v6. Refine offers a router provider for React Router v6, which is designed to work seamlessly with the framework. According to the refine documentation on React Router v6 integration (https://refine.dev/docs/routing/integrations/react-router/#basic-usage), the @refinedev/react-router-v6 package provides this integration. The router provider helps refine understand the relationship between resources and routes, enabling various navigation features. It's important to note that refine supports both the traditional <BrowserRouter> approach and the newer <RouterProvider> introduced in React Router v6.4. If you're using the <RouterProvider> approach, which uses the Data APIs Router, you can set up your app like this:

import { Refine } from "@refinedev/core";
import dataProvider from "@refinedev/simple-rest";
import routerProvider from "@refinedev/react-router-v6";
import { createBrowserRouter, RouterProvider, Outlet } from "react-router-dom";

// ... your components imports

const router = createBrowserRouter([
  {
    Component: RefineProvider,
    children: [
      // ... your route configurations
    ],
  },
]);

const App = () => {
  return <RouterProvider router={router} />;
};

const RefineProvider = () => {
  return (
    <Refine
      dataProvider={dataProvider}
      routerProvider={routerProvider}
      resources={[
        // ... your resource configurations
      ]}
    >
      <Outlet />
    </Refine>
  );
};

import { Refine } from "@refinedev/core";
import dataProvider from "@refinedev/simple-rest";
import routerProvider from "@refinedev/react-router-v6";
import { createBrowserRouter, RouterProvider, Outlet } from "react-router-dom";

// ... your components imports

const router = createBrowserRouter([
  {
    Component: RefineProvider,
    children: [
      // ... your route configurations
    ],
  },
]);

const App = () => {
  return <RouterProvider router={router} />;
};

const RefineProvider = () => {
  return (
    <Refine
      dataProvider={dataProvider}
      routerProvider={routerProvider}
      resources={[
        // ... your resource configurations
      ]}
    >
      <Outlet />
    </Refine>
  );
};

This setup should work with the useParsed hook and other refine routing features. However, it's worth noting that according to the documentation, "more advanced use cases of the Data APIs are not tested" React Router v6 integration (https://refine.dev/docs/routing/integrations/react-router/#basic-usage). If you're still experiencing issues with useParsed or other routing-related functionalities, it might be worth checking if you're using the latest version of @refinedev/react-router-v6 and ensuring that your router setup aligns with the recommended configuration. If problems persist, you may want to consider opening an issue on the refine GitHub repository (https://github.com/refinedev/refine) to get more specific help from the maintainers, as there might be nuances in your particular setup that are causing the inconsistencies you're experiencing. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

equal-aquaOP•6d ago

@kapa.ai how do i see all the release notes for refine

kapa.ai•6d ago

Let me check the knowledge base for you again. One moment! :books: ---------------------- To see all the release notes for refine, you have a few options: 1. Changelogs: Refine maintains separate changelogs for each of its packages. You can find links to these changelogs in the Refine v4 announcement blog post (https://refine.dev/blog/refine-v4-announcement/#changelog). Some of the main package changelogs include: - @refinedev/core (https://github.com/refinedev/refine/blob/master/packages/core/CHANGELOG.md) - @refinedev/antd (https://github.com/refinedev/refine/blob/master/packages/antd/CHANGELOG.md) - @refinedev/mui (https://github.com/refinedev/refine/blob/master/packages/mui/CHANGELOG.md) - @refinedev/mantine (https://github.com/refinedev/refine/blob/master/packages/mantine/CHANGELOG.md) - @refinedev/chakra-ui (https://github.com/refinedev/refine/blob/master/packages/chakra-ui/CHANGELOG.md) You can click on these links to view the detailed changes for each package. 2. GitHub Releases: You can also check the GitHub releases page (https://github.com/refinedev/refine/releases) for the refine repository. This page will show you all the official releases with their associated changes and updates. 3. Migration Guides: For major version updates, refine provides comprehensive migration guides. For example, you can find the migration guide from v3 to v4 (https://refine.dev/docs/migration-guide/3x-to-4x/) in the documentation. 4. Release Cycle: According to the refine documentation on contributing (https://refine.dev/docs/guides-concepts/contributing/#release-cycle), refine follows a monthly release cycle. They release a new version every month with the changes made during that period. Remember that refine is actively developed, so it's a good idea to check these resources regularly to stay updated on the latest changes and improvements. ---------------------- Note: you can ask me a follow up question by @ mentioning me again :speech_balloon: ----------------------

kapa.ai•6d ago

<@422289470487003153> Kapa.ai is still learning and improving, please let me know how I did by reacting below.