React query mutation onsuccess - First argument of the hook is a callback function that returns a promise.

 
To retrieve data in GraphQL, queries are used. . React query mutation onsuccess

This is my first code. data has the mutation response data. The mutation function you can call with variables to trigger the mutation and optionally override options passed to useMutation. The second-gen Sonos Beam and other Sonos speakers are on sale at Best Buy. The real power of React Query's mutations comes with the onSuccess operation. React query mutation onsuccess qq cu. Modified today. import { useMutation, useQueryClient } from 'react-query'; import { IUploadFieldRequest } from '. 当请求成功后,会触发 onSuccess 回调,回调中调用 queryClient. onSuccess is run when the mutation request is successful. Примечание: мы не можем использовать никакую другую библиотеку вроде react-native-element только 'react-native' и 'formik'. we need to add react query client provider as the App wrapper, so all the children components have access to the same react query client. For example, the following query could be used to request a list of to-do items from a server: query TodoList { todoList { id title description } } The query above would return a list of todo item objects with id, title, description, and date fields. Oct 03, 2022 · How to add onSuccess to React-Query mutation in React. , call an endpoint that sends an email or that processes a payment). Как интегрировать react native checkbox с formik. 16 авг. May 01, 2021 · We will be breaking this tutorial down into 3 parts. useMutation( { onSuccess(input) { utils. It's the responsibility of the user code to not do that. An example mutation function App() { // Unlike useQuery, useMutation doesn't run immediately. This function will fire before the mutation function is fired and is passed the same variables the mutation function would. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. 11 янв. 15 мар. it can be done by defining the appropriate onSuccess callback function to the mutation:. invalidateQueries ,将 userData 对应的 query 缓存置为 invalidate 。. Today, we will see how we can perform Create & Edit Mutations using React Query in our GraphQL based Web App called Expengo. Nov 18, 2022 · I have detail page use for edit data. log (data) //this is the response you get back setresponse (data) } }) const [response,setresponse] = usestate. The request does not change any backend state, and any re-requests for the data will also not cause a change to backend state. React query V4 is renamed to @tanstack/react-query while keeping the prev version's name as react-query $ npm i @tanstack/react-query # or $ yarn add @tanstack/react-query Initialization. React-Query에서 쿼리나 뮤테이션을 호출할 때 옵션으로 onError, onSuccess를 설정할 수 있고 컴포넌트단에서 useQueryClient를 통하여 직접 쿼리나 뮤테이션을 무효화(invalidation) 시킬 수. The request does not change any backend state, and any re-requests for the data will also not cause a change to backend state. Learn more about Teams. ' 10 ) : ( 11 <> 12 {mutation. FWIW, await не сработало, потому что postTrigger (mutate из react-query) не возвращает обещание. 8i9zcol2 于 12分钟前 发布在 iOS. Once we invalidate our query we have to show some sort of indicator to our user that the data is currently being fetched and this too is provided by react query 🤯🤯. 0 React, Graphql - useMutation to delete from DB useMutation hook in react-apollo-graphql firing up 2 times Keystone/Apollo/React: 1 useMutation for several creations issue Is there any. But that's about where the similarities end. The only problem is that our list in not being update at all. May 01, 2021 · We will be breaking this tutorial down into 3 parts. invalidateQueries, even though a different invocation of the mutation is still running. Nov 18, 2022 · I have detail page use for edit data. For this purpose, React Query exports a useMutation hook. Connect and share knowledge within a single location that is structured and easy to search. At first i use yup and simple function to call api. const mutation = useMutation ( () => { axios. It will be accessible wherever the mutation is available (eg. The following examples show how to use react-query. When i call queryClient. which you can use to. Within the context of React Query, debouncing a Promise doesn’t seem like a good idea to me, as the MutationCache just keeps getting filled with the same, singleton-ish. onSuccess: router. Today, we will see how we can perform Create & Edit Mutations using React Query in our GraphQL based Web App called Expengo. They are also used to perform server side-effects (e. onSuccess: On success is used to do changes when the request is successfully served. /services'; export const URI = () => '/licenses/upload'; export const useUploadLicense = () => { const queryClient = useQueryClient (); const [apiService] = licenseServiceAPI<FormData> ( { headers: { 'Content-Type': 'multipart/form-data' } }); const { data: response,. const { data, isLoading, isFetching } = usePlanets(); isFetching is used to show the loader again and also addPlanetMuttion. public void. The mutation function you can call with variables to trigger the mutation and optionally override options passed to useMutation. onSuccess: (data: TData) => void Optional This function will fire any time the query successfully fetches new data or the cache is updated via setQueryData. js import React from 'react' import { useMutation, useQueryClient,. invalidateQueries ,将 userData 对应的 query 缓存置为 invalidate 。 这样, React-Query 就会重新请求 userData 对应 query 的数据。 三、React-Query 辅助 Hook介绍 1、Hook: (1)useIsFetching 返回应用程序在后台加载或获取的查询的数量(对于应用程序范围内的加载指示器很有用)。. post ('/api/data', { text: newTodo }), { // When mutate is called: onMutate: async (newTodo: string) => { setText ('') // Cancel any outgoing refetches (so they don't overwrite. post ('/api/data', { text: newTodo }), { // When mutate is called: onMutate: async (newTodo: string) => { setText ('') // Cancel any outgoing refetches (so they don't overwrite. React-Query:如果不想进入 Loading 状态,可以使用 keepPreviousData:true ,它的意思就是使用之前的数据做一个占位符,当有新数据的时候再替换掉。. In a mutation the intention is to create some change in the backend state. Jan 17, 2021 · optimistic updates are a bit tricky for type inference. It's a difference in what happens to the backend state. Learn more about Teams. invalidateQueries, even though a different invocation of the mutation is still running. It's a difference in what happens to the backend state. accessToken: string; } export const register = async ( {. Since useQuery is an asynchronous call (internally), it also provides request in-flight flags like isLoading , isFetching , etc. Все работает правильно, но onSuccess в useMutation, когда вызывается invalidateQueries, вызывает проверку useQuery до того, как запрос POST будет успешно выполнен на бэкэнде. Simply tracking promise status and data/error Declaratively using onSuccess/onError/onSettled to trigger query refetching or direct cache mutations The mutation function will call it as many time as you hit the button. In a query the intention is that you're requesting a particular dataset from some source. If you type the return object in your mutation function, typescript will show that type on the onSuccess parameter. The second-gen Sonos Beam and other Sonos speakers are on sale at Best Buy. Since useQuery is an asynchronous call (internally), it also provides request in-flight flags like isLoading , isFetching , etc. React Query 通常被描述为React的data fetching库,它让React应用程序中的数据获取、缓存、同步和更新服务器状态变得轻而易举。 React 自身并没有开箱即用的获取和更新数据的方法,通常我们使用hook来实现 fetching data 。. /userApi' function UserForm() { const {mutate, isLoading} =. Nov 21, 2022, 2:52 PM UTC nu oz ok np sa dy. Similarly to the scenario presented in the previous tip, let’s take advantage of React Query’s callbacks to invalidate outdated cache as a side effect of a mutation: Please notice we are invoking the useQueryClient Hook to access the cache and the invalidateQueries function to invalidate the cache corresponding to the ServerStateKeysEnum. React Query 通常被描述为React的data fetching库,它让React应用程序中的数据获取、缓存、同步和更新服务器状态变得轻而易举。 React 自身并没有开箱即用的获取和更新数据的方法,通常我们使用hook来实现 fetching data 。. Once we invalidate our query we have to show some sort of indicator to our user that the data is currently being fetched and this too is provided by react query 🤯🤯. invalidateQueries will invalidate the cache with todo key and make React Query fetch the data again. The onMutate callback will fire for every time The onSuccess (and other delayed callbacks) will only fire for the latest mutation. 9 окт. Nov 21, 2022, 2:52 PM UTC nu oz ok np sa dy. Today, we will see how we can perform Create & Edit Mutations using React Query in our GraphQL based Web App called Expengo. This is my first code. In order to try mutations, I have created two APIs. onMutate: (variables: TVariables) => Promise<TContext | void> | TContext | void. mutations aren't all that special, but when used with the onSuccess . React-Query:如果不想进入 Loading 状态,可以使用 keepPreviousData:true ,它的意思就是使用之前的数据做一个占位符,当有新数据的时候再替换掉。. log (data) //this is the response you get back setresponse (data) } }) const [response,setresponse] = usestate. To retrieve data in GraphQL, queries are used. 关注 (0) | 答案 (1) | 浏览 (0) 我有API调用函数( httpClient 是 axios 的示例). React Query 通常被描述为React的data fetching库,它让React应用程序中的数据获取、缓存、同步和更新服务器状态变得轻而易举。 React 自身并没有开箱即用的获取和更新数据的方法,通常我们使用hook来实现 fetching data 。. It's the responsibility of the user code to not do that. 为此,React Query 导出了一个 useMutation 钩子。. dev/ ; Support UPI - https://support. Here we have the mutation function, which we type the return as an object with key category and a value of type ExampleCategoryT. You may check out the related API usage on the sidebar. Here's an example of a mutation that adds a new todo to the server:. React-Query에서 쿼리나 뮤테이션을 호출할 때 옵션으로 onError, onSuccess를 설정할 수 있고 컴포넌트단에서 useQueryClient를 통하여 직접 쿼리나 뮤테이션을 무효화(invalidation) 시킬 수. Remember, with server state, you're only ever displaying a snapshot of data from a given point in time. The diagram might look more complex compared to the old one, but what matters is that there is only one state! (see Single source of truth (opens in a new tab)) Lessons. 8 дек. Their details are added to a form and they. 当请求成功后,会触发 onSuccess 回调,回调中调用 queryClient. Also, react-query useQuery hook calls the onSuccess(data) callback with the data received before the actual data object(the one returned by the useQuery hook) is set and returned from the hook. At first i use yup and simple function to call api. const mutation = useMutation ( () => { axios. This function will fire before the mutation function is fired and is passed the same variables the mutation function would. It's a difference in what happens to the backend state. React query mutation onsuccess. import react, { usestate } from 'react' import { usemutation } from 'react-query' import {createuser} from '. { // response of the mutation is passed to onSuccess onSuccess: (newPost) . The variables object to pass to the mutationFn. Following to our previous articles which i explained how to use React-Query useInfiniteQuery and covering it with unit testing with 100% coverage using Jest and React-testing-library and Nock/MSW. Я не в состоянии интегрировать react-native checkbox с formik. import { useMutation } from 'react-query' const {mutate} = useMutation (createUser); 이 mutate는 필요할 때마다 트리거되어야 하는 함수이며 전송하려는 데이터/페이로드는 이 mutate 함수에 매개변수로 전송되어야 합니다. You may check out the related API usage on the sidebar. signOut({ global: true }), { onSuccess: router. 3 useMutation(updateTodo, {. axios 如何在React Query中键入onSuccess数据?. In a query the intention is that you're requesting a particular dataset from some source. onSuccess: router. React Query 通常被描述为React的data fetching库,它让React应用程序中的数据获取、缓存、同步和更新服务器状态变得轻而易举。 React 自身并没有开箱即用的获取和更新数据的方法,通常我们使用hook来实现 fetching data 。. invalidateQueries, even though a different invocation of the mutation is still running. import { useMutation } from 'react-query' const {mutate} = useMutation (createUser); 이 mutate는 필요할 때마다 트리거되어야 하는 함수이며 전송하려는 데이터/페이로드는 이 mutate 함수에 매개변수로 전송되어야 합니다. useState` is not a function; React function says "is not a function" React TypeError: React. invalidateQueries, even though a different invocation of the mutation is still running. reload, onError: (err: Error) =>notification. Today, we will see how we can perform Create & Edit Mutations using React Query in our GraphQL based Web App called Expengo. log ("success"); }, onError: () => { console. onSettled is run whenever a mutation request is finished regardless of whether it’s successful or not. Retry failed requests. Please keep in mind that those additional callbacks won't run if your component unmounts before the mutation finishes. Q&A for work. The request does not change any backend state, and any re-requests for the data will also not cause a change to backend state. invalidateQueries, even though a different invocation of the mutation is still running. we need to add react query client provider as the App wrapper, so all the children components have access to the same react query client. 10 авг. Как интегрировать react native checkbox с formik. React Query - Should I await the invalidateQueries for mutation onSuccess? In my app, I'm using a react query mutation to make changes to . Learn more about Teams. 25 окт. React Query exists as a solution because managing server-side state on the client is a well-documented pain. At first i use yup and simple function to call api. Q&A for work. For this purpose, React Query exports a useMutation hook. Which means there will be a lot refetching going on without explicit triggers. preventDefault (); mutate (userData); As we handled in useQuery you. 8 дек. setMutationDefaults or to identify the mutation in the devtools. 最后但并非最不重要:我已经检查了是否正确修改了oldQueryData(控制台登录到突变响应中的onSuccess fn),并且正如我之前所说的,在React-query DevTools中正确修改了数据。 我知道这是很多代码,问题似乎很复杂,但我真的相信这可能是一件很容易的事情,我没有指出,因为我已经很累了。 谢谢! reactjs 来源: https://stackoverflow. Mutations, you'd likely want to do that in the onSuccess callback of mutate. To be more. signOut({ global: true }), { onSuccess: router. React-Query 并没有规定数据获取方式,只要数据获取是一个返回 Promise 的函数就可以了,它把数据获取的选择权交到开发人员手中,所以我们. web series download in 9xmovies press free crochet woodland animal applique patterns dickies carpenter jeans mature blonde porn pics. Remember, with server state, you're only ever displaying a snapshot of data from a given point in time. onSuccess: (данные: TData, переменные: TVariables, контекст?:. accessToken: string; } export const register = async ( {. I&amp;#39;m building a simplified model CRUD framework using react query, and I have a need to configure a number of defaults for various queries and mutations. Use onSuccess and onError Callbacks for Side Effects. invalidate( { id: input. 当请求成功后,会触发 onSuccess 回调,回调中调用 queryClient. Все работает правильно, но onSuccess в useMutation, когда вызывается invalidateQueries, вызывает. useUpdate is an extended version of TanStack Query's useMutation. It's the responsibility of the user code to not do that. dev/api/foobar", {}); }, { onSuccess: () => { console. The new kids in the town here are onMutate, onSuccess and onError. React-Query:如果不想进入 Loading 状态,可以使用 keepPreviousData:true ,它的意思就是使用之前的数据做一个占位符,当有新数据的时候再替换掉。. post ('http://swapi. xml을 사용하십시오 REQUIRED_CHILDREN. A query operation can be performed with any data fetching library of your choice, but the general recommendation is that you only use queries for requests that retrieve data. This function will be called if some query is successful. У меня идет паттерн который использует. We can use the onSuccess method as shown in the code below. Q&A for work. The React query model will generate an implementation file with one custom hook per path in your OpenApi Specification. Nov 18, 2022 · I have detail page use for edit data. 0 React, Graphql - useMutation to delete from DB useMutation hook in react-apollo-graphql firing up 2 times Keystone/Apollo/React: 1 useMutation for several creations issue Is there any. May 01, 2021 · We will be breaking this tutorial down into 3 parts. Feb 11, 2022 · At the same time, we ask React Query to add this Pokemon already and not care if the mutation was correct or not. To retrieve data in GraphQL, queries are used. invalidateQueries ,将 userData 对应的 query 缓存置为 invalidate 。. To retrieve data in GraphQL, queries are used. Jan 31, 2022 · Step 1 - Setting up the library and endpoints I'm going to assume you know how to install a NPM package and include it in your project. We can use the onSuccess. For this purpose, React Query exports a useMutation hook. May 29, 2022 · Today, we will see how we can perform Create & Edit Mutations using React Query in our GraphQL based Web App called Expengo. 📘 Courses - https://learn. The subscribe method can be used to subscribe to the mutation cache as a whole and be informed of safe/known updates to the cache like mutation states changing or mutations being updated, added or removed. Jun 12, 2022 · In a nutshell In React Query, mutations are used to create, update or delete server-side data. We can use the onSuccess. Example code Backend code import { trpc } from '. RTK Query > Usage > Mutations: sending updates to the server. 6 // Cancel any outgoing refetches (so they don't overwrite our optimistic update). Mutation[] Mutation instances from the cache; mutationCache. All the parameters are the same as before. 1 const queryClient = useQueryClient() 2. 29 июл. 내 handleSubmit 함수는 다음과 같습니다. This function will be called if some query is successful. Ask Question Asked today. 15 мар. setMutationDefaults or to identify the mutation in the devtools. This function will fire before the mutation function is fired and is passed the same variables the mutation function would. In a real-world application (without React Query), you might do something like this: Call a function that adds a piece of data Once that function ran (if it succeeded), manually update the state with the new data Let React re-render the page with the updated state. 当请求成功后,会触发 onSuccess 回调,回调中调用 queryClient. It is this surrealist work which introduced the soft. dev/💖 Support PayPal - https://www. At first i use yup and simple function to call api. Creating a todo in your database would be a mutation. js import React from 'react' import { useMutation, useQueryClient,. This function will fire before the mutation function is fired and is passed the same variables the mutation function would. onError, onSuccess functions of the MutationCache). we need to add react query client provider as the App wrapper, so all the children components have access to the same react query client. These helpers are actually thin wrappers around @tanstack/react-query 's queryClient methods. Time to get to the crux of this tutorial, which is learning how to use React-Query in a project to fetch and mutate. We can use the onSuccess. we need to add react query client provider as the App wrapper, so all the children components have access to the same react query client. Nov 18, 2022 · I have detail page use for edit data. invalidate( { id: input. Nov 18, 2022 · I have detail page use for edit data. 当请求成功后,会触发 onSuccess 回调,回调中调用 queryClient. the id of the entity being mutated, right now I am patching it up but I guess this. js ( React-Query ) const { mutate } = useMutation (updateCustomer, { onSuccess: data => { console. The React query model will generate an implementation file with one custom hook per path in your OpenApi Specification. public void. Learn more about Teams. In a real-world application (without React Query), you might do something like this: Call a function that adds a piece of data Once that function ran (if it succeeded), manually update the state with the new data Let React re-render the page with the updated state. Q&A for work. This function will fire before the mutation function is fired and is passed the same variables the mutation function would. We are using React Query not only to fetch data (queries),. invalidateQueries ,将 userData 对应的 query 缓存置为 invalidate 。. These helpers are actually thin wrappers around @tanstack/react-query 's queryClient methods. const { data, isLoading, isFetching } = usePlanets(); isFetching is used to show the loader again and also addPlanetMuttion. The request does not change any backend state, and any re-requests for the data will also not cause a change to backend state. , call an endpoint that sends an email or. js import React from 'react' import { useMutation, useQueryClient,. In a query the intention is that you're requesting a particular dataset from some source. onMutate: On mutate can be used to handle some side effects when the request is in the process. Within the context of React Query, debouncing a Promise doesn’t seem like a good idea to me, as the MutationCache just keeps getting filled with the same, singleton-ish Promise. Works like react-query's mutations - see their docs. Nov 18, 2022 · I have detail page use for edit data. onSettled is run whenever a mutation request is finished regardless of whether it’s successful or not. craigslist in daytona beach florida

Jun 12, 2022 · In a nutshell In React Query, mutations are used to create, update or delete server-side data. . React query mutation onsuccess

chapters 00:00 intro & preview 01:00 work structure setup 04:29 adding external font 05:48 running the <strong>react</strong> project 06:07 adding styled-components 08:05 adding the background & creating the home. . React query mutation onsuccess

Global callbacks The onError and onSuccess callbacks on the QueryCache can be used to handle these events on a global level. The following examples show how to use react-query. This function will be called if some query is successful. Jan 17, 2021 · optimistic updates are a bit tricky for type inference. onSettled is run whenever a mutation request is finished regardless of whether it’s successful or not. onSuccess: router. Для реализации пагинации с помощью React Query достаточно включить. Today, we will see how we can perform Create & Edit Mutations using React Query in our GraphQL based Web App called Expengo. Mutations in React Query handles data modification. Я не в состоянии интегрировать react-native checkbox с formik. isLoading ? ( 9 'Adding todo. React-Query 被称为 React 中缺少的数据获取的代码库,它使 React 应用中获取、缓存、同步和更新服务器状态变得轻而易举。. variables and context are the same as the other callback parameters. 12 hours ago · I am uploading an image in the backend using react-query useMutation. turns out this code. Nov 21, 2022, 2:52 PM UTC nu oz ok np sa dy. invalidateQueries ,将 userData 对应的 query 缓存置为 invalidate 。. Apr 24, 2021 · How to implemet useMutation from react-query in handleSubmit Unable to refetch query using 'id' inside onSuccess() callback of useMutation in react-query 3. invalidateQueries ,将 userData 对应的 query 缓存置为 invalidate 。. isError ? (. React query mutation onsuccess qq cu. The catch here is that those additional callbacks won't run if your component unmounts before the mutation finishes. Oct 10, 2021 · Since we are in the context of managing server state with React Query, mutations describe a function that performs such a side effect on the server. Refresh the page, check Medium ’s site status, or find something interesting to read. Everything is working correctly, but onSuccess in useMutation when invalidateQueries is called it's inValidating the useQuery before the POST request gets executed successfully on the backend. invalidateQueries, even though a different invocation of the mutation is still running. useContext. the id of the entity being mutated, right now I am. Here's an example of a mutation that adds a new todo to the server: tsx function App() { const mutation = useMutation({ mutationFn: newTodo => { return axios. Все работает правильно, но onSuccess в useMutation, когда вызывается invalidateQueries, вызывает проверку useQuery до того, как запрос POST будет успешно выполнен на бэкэнде. Once we invalidate our query we have to show some sort of indicator to our user that the data is currently being fetched and this too is provided by react query 🤯🤯. Nov 18, 2022 · I have detail page use for edit data. Their details are added to a form and they. So, you have to make sure the component where you are doing the mutation does not unmount. 在讲解 React-Query 之前,我们来谈论一个老生常谈的问题: 状态管理。 它一直是我认为是前端内最难的一个问题,本地状态如何管理,兄弟组件之间状态如何共享,该不该把这个状态放到全局,整个数据流又是什么样子的,这一系列问题,在写代码的时候无时无刻不在考虑。 全局状态 说到状态管理就不得不说一下全局状态,一些需要在全局共享的数据,比如说当前用户的登陆信. message, placement: 'topRight', duration: 1. invalidateQueries, even though a different invocation of the mutation is still running. invalidateQueries ,将 userData 对应的 query 缓存置为 invalidate 。. React-Query, useQuery возвращает undefined только после завершения загрузки Я в своем react app использую пакет react-query. const mutation = trpc. log("onSuccess res"); }, onMutate: async (data: JobExperience) => { /**Optimistic mutation */ }, onError: (_err, data, context) => { console. 即使只有变量,mutation 也不是那么特别,但是当与 onSuccess选项、 Query Client's的 invalidateQueries 方法和 Query Client's的 setQueryData 方法一起使用时. Returns mutate: (variables: TVariables, { onSuccess, onSettled, onError }) => void The mutation function you can call with variables to trigger the mutation and optionally override options passed to useMutation. , call an endpoint that sends an email or that processes a payment). React-Query 被称为 React 中缺少的数据获取的代码库,它使 React 应用中获取、缓存、同步和更新服务器状态变得轻而易举。. variables: TVariables. To do that, you can provide any of the same callback options to the mutate function after your mutation variable. It's a difference in what happens to the backend state. Everything is working correctly, but onSuccess in useMutation when invalidateQueries is called it's inValidating the useQuery before the POST request gets executed successfully on the backend. React query mutation onsuccess xi Fiction Writing useContext. we need to add react query client provider as the App wrapper, so all the children components have access to the same react query client. This is my first code. useContext.

The onSuccess/onError handler is also available on the 'mutate' method (https://react-query. When i call queryClient. It was painted in 1931 and donated to MoMA in 1934. We also need to do changes when calling our mutation function, as we are now passing an object instead of three individual parameters. May 29, 2022 · Today, we will see how we can perform Create & Edit Mutations using React Query in our GraphQL based Web App called Expengo. invalidateQueries ,将 userData 对应的 query 缓存置为 invalidate 。. 当请求成功后,会触发 onSuccess 回调,回调中调用 queryClient. 默认情况下,React Query 不会在错误时重试mutation请求,但可以使用 retry. The mutation function will call it as many time as you hit the button. May 29, 2022 · Today, we will see how we can perform Create & Edit Mutations using React Query in our GraphQL based Web App called Expengo. Apr 24, 2021 · How to implemet useMutation from react-query in handleSubmit Unable to refetch query using 'id' inside onSuccess() callback of useMutation in react-query 3. Примечание: мы не можем использовать никакую другую библиотеку вроде react-native-element только 'react-native' и 'formik'. Per default, react-query will only ignore the result, but you can also attach a cancel method to the Promise to really abort the network request. Part 2 will be writing the code for the custom hooks that use React-Query to communicate with our fake API. 1) First of all we need to import useMutation to the view component. Theoretically, we could use React Query mutations here, but in this case, we don’t need to specify const [btnLoading, setBtnLoading] = useState (false); state and manage it, but I think it would be unclear and probably over complicated in this particular case. onSuccess is run when the mutation request is successful. React Query exists as a solution because managing server-side state on the client is a well-documented pain. React Query update changes after mutation. I find a potential improvement for this lib, when using useMutation only the fetcher has access to the dynamic variables object and for example when trying to update the queryCache in the onSuccess it sounds common enough to have access to those variables i.