refetch ( { where: { name_contains: value }} ); it refetches, but it doesn't pass variables to the query, I console logged the results. when running through the playground it passes variables. but this function provided by hooks doesn't pass variables. this is my query. const PLANTS_QUERY = gql` query { plants { plant_name is_active } } `; Jul 29, 2020 · The useQuery hook. The useQuery hook is a function used to register your data fetching code into React Query library. It takes an arbitrary key and an asynchronous function for fetching data and return various values that you can use to inform your users about the current application state. Feb 12, 2022 · React Query dependent queries. We can leverage the enabled property to make queries dependent on a variable. This will tell React Query if this query should be enabled or not, and it can accept anything that calculates to a boolean. const { isIdle, data } = useQuery('your-key', yourQueryFn, { enabled: conditionIsTrue, }); Oct 16, 2020 · read from localstorage, build variables for fetch (offset, limit, ...) fetch with variables; when filters or search change, refetch with modified variables; also save the modified variables to localstorage; My question is: should I use useQuery or useLazyQuery for this purpose. With useQuery, I may could do: Server-side rendering (SSR) is a performance optimization for modern web apps. It enables you to render your app's initial state to raw HTML and CSS on the server before serving it to a browser. This means users don't have to wait for their browser to download and initialize React (or Angular, Vue, etc.) before content is available: Browser ... Again, this example is similar to the useQuery-based component above, but it differs after the rendering is completed. Because this component relies on a button click to fire a mutation, we use Testing Library's user-event library to simulate a click with its click method. May 31, 2023 · My logic is intended as follows: In useEffect. get {id} from the router. trigger getUserFromId (id) with that id. setUser () with db response. Run the query. get user from state and pass it into variables: {} for query. run the query. I think that my problem is that the useEffect is running after my useQuery so the user i am trying to get from ... Nov 14, 2020 · This can be achived using useEffect ( () => {// send the request}, [criteria]) Because, useEffect ensures that the request will send to server only if the setCriteria is finished. But, I am using react-query library. so that, it is not allowed to use useQuery inside useEffect. As A result, the request is send to server before it the setState is ... Oct 14, 2022 · I have a NextJS project that uses NextAuth for session management and then React Query to retrieve data on the front-end. However, with the current format (as seen below), useSession() will return Nov 27, 2020 · Writing Our First Reactive Variable #. Here’s what a reactive variable looks like: import { makeVar } from '@apollo/client'; const myReactiveVariable = makeVar (/** An initial value can be passed in here.**/) The makeVar is imported from Apollo Client and is used to declare our a reactive variable. Feb 13, 2021 · 1 Answer. You don’t need an extra way to distribute your data, like react context. Just call useQuery with the same key wherever you need to, and react query will do the rest. It is best to abstract that away in a custom hook. refetch should only be used if you want to refetch with the exact same parameters. Once again, we'll pass our query to the useQuery hook. This time, we also need to pass the corresponding launch's launchId to the query as a variable. We'll use React Router's useParams hook to access the launchId from our current URL. Aug 23, 2021 · variables will be the variables object passed in useQuery (eg, { name: "Fido" } in this example). We have the option here to return dummy data based on what variables are passed. Or, as we are doing in our test, we can ignore the return value and assert with expect that our spy was called with the variables we are expecting. A derived boolean from the status variable above, provided for convenience. isSuccess: boolean. A derived boolean from the status variable above, provided for convenience. isError: boolean. A derived boolean from the status variable above, provided for convenience. isLoadingError: boolean. Will be true if the query failed while fetching for the ... A derived boolean from the status variable above, provided for convenience. isSuccess: boolean. A derived boolean from the status variable above, provided for convenience. isError: boolean. A derived boolean from the status variable above, provided for convenience. isLoadingError: boolean. Will be true if the query failed while fetching for the ... Jul 29, 2020 · The Apollo platform is an implementation of GraphQL that transfers data between the cloud (the server) to the UI of your app. When you use Apollo Client, all of the logic for retrieving data, tracking, loading, and updating the UI is encapsulated by the useQuery hook (as in the case of React). Hence, data fetching is declarative. Dependent (or serial) queries depend on previous ones to finish before they can execute. To achieve this, it's as easy as using the enabled option to tell a query when it is ready to run: tsx. // Get the user. const { data: user } = useQuery({. queryKey: ['user', email], Feb 13, 2021 · 1 Answer. You don’t need an extra way to distribute your data, like react context. Just call useQuery with the same key wherever you need to, and react query will do the rest. It is best to abstract that away in a custom hook. refetch should only be used if you want to refetch with the exact same parameters. Feb 13, 2021 · 1 Answer. You don’t need an extra way to distribute your data, like react context. Just call useQuery with the same key wherever you need to, and react query will do the rest. It is best to abstract that away in a custom hook. refetch should only be used if you want to refetch with the exact same parameters. May 13, 2020 · Local State Management improvements with Cache Policies and Reactive Variables. My personal favorite new features about Apollo Client 3 are Cache Policies and Reactive Variables. Cache Policies Cache Policies introduce a new way to modify what the cache returns before reads and writes to the cache. It introduces cleaner patterns for setting ... Oct 16, 2020 · read from localstorage, build variables for fetch (offset, limit, ...) fetch with variables; when filters or search change, refetch with modified variables; also save the modified variables to localstorage; My question is: should I use useQuery or useLazyQuery for this purpose. With useQuery, I may could do: Mar 19, 2023 · this works, because you can't expect await refetch() to change the data variable in the closure (the result from useQuery). So you have to use the result returned from refetch(). If you only need the query to eventually call refetch, I would use queryClient.fetchQuery instead. – Oct 14, 2022 · I have a NextJS project that uses NextAuth for session management and then React Query to retrieve data on the front-end. However, with the current format (as seen below), useSession() will return May 13, 2020 · Local State Management improvements with Cache Policies and Reactive Variables. My personal favorite new features about Apollo Client 3 are Cache Policies and Reactive Variables. Cache Policies Cache Policies introduce a new way to modify what the cache returns before reads and writes to the cache. It introduces cleaner patterns for setting ... I set up my own project and was experiencing the same issue when using useQuery. UPDATE: After adding an item, useQuery seems to work fine. Intended outcome: value of loading changes to false when data is available. Actual outcome: value of loading never updates to false. Version May 31, 2020 · 5 Answers Sorted by: 19 This works for me: const { refetch } = useQuery (CHECK_EMAIL, { skip: !values.email }) const handleSubmit = async () => { const res = await refetch ( { variables: { email: values.email }}) console.log (res) } Share Follow answered Dec 15, 2020 at 16:05 kurtko 1,978 4 30 46 2 May 31, 2020 · 14. I need to call a query when submit button is pressed and then handle the response. I need something like this: const [checkEmail] = useLazyQuery (CHECK_EMAIL) const handleSubmit = async () => { const res = await checkEmail ( { variables: { email: values.email }}) console.log (res) // handle response } Try #1: Mar 10, 2021 · In the last post, we did a basic web service request using the useQuery hook. This post will expand this example and make a second request that requires data from the first request. Our requirement. At the moment, our React component requests the people resource in the Star Wars API and displays the character’s name. The easiest way of keeping data up to date would be to use the polling feature from apollo. const { loading, error, data } = useQuery (QUERY, { variables: input, skip: !isActivated, pollInterval: 500, // Update every 500ms }); One way of refetching on demand would be to use the returned refetch function. Dec 31, 2020 · Addition: If you want to await for resolving mutate, you can wrap the whole call in a Promise and resolve it in onSuccess (or onSuccess / onSettle) like this: await new Promise ( (resolve) => { mutatePostInfo.mutate (value, { onSuccess: () => resolve () }) }); – Froxx Nov 27, 2020 · Writing Our First Reactive Variable #. Here’s what a reactive variable looks like: import { makeVar } from '@apollo/client'; const myReactiveVariable = makeVar (/** An initial value can be passed in here.**/) The makeVar is imported from Apollo Client and is used to declare our a reactive variable. Nov 27, 2020 · Writing Our First Reactive Variable #. Here’s what a reactive variable looks like: import { makeVar } from '@apollo/client'; const myReactiveVariable = makeVar (/** An initial value can be passed in here.**/) The makeVar is imported from Apollo Client and is used to declare our a reactive variable. Mar 14, 2019 · Normally I put [all, my, query, variables] into the useQuery to avoid multiple runs when other state is changing. @pak11273 I don't understand why you would need another state (useState). Using the data from useQuery should suffice, no? I needed the onComplete to trigger another query which needed data from the first query. Feb 7, 2022 · DriesVerb September 7, 2022, 9:22am 5. I had this exact same issue and I found a workaround. What you want to do is wrap your graph query in a function and pass your nested variable as a parameter. You can also do this for the primary variables. export const functionName = (limit, skip, stateProvince) => { const CATALOG_QUERY = gql` query ... Again, this example is similar to the useQuery-based component above, but it differs after the rendering is completed. Because this component relies on a button click to fire a mutation, we use Testing Library's user-event library to simulate a click with its click method. Jul 27, 2022 · I know that you can use the enabled option to force the hook to wait until a certain value exists before becoming active (seen in my invocation of useQuery below) but I can't find a way to provide additional variables for the hook to depend on. Any help is appreciated. Apollo Link is a library that helps you customize Apollo Client's network communication. You can use it to define a link chain that modifies your operations and routes them to the appropriate destination. To execute subscriptions over WebSocket, you can add a GraphQLWsLink to your link chain. This link requires the graphql-ws library. Nov 19, 2019 · List of Steps: Step 1: Fetch a query stage. const GetStage = useQuery (confirmStageQuery, { variables: { input: { id: getId.id } } }); Step 2: Based on the response that we get from GetStage, we would like to switch between 2 separate queries. Sep 12, 2022 · Set the `enabled` property in the useQuery call. Once the user clicked on that button we will update the fetchPosts state value, which will trigger the component to re-render and the useQuery hook will execute and fetch the data in case the fetchPosts value is true. function Example() { const [fetchPosts, setFetchPosts] = useState(false); const ... Nov 28, 2022 · 1 It because: setParticipant change state asynchronously, useEffect invokes after render actually happend so even if data.participant is not empty, participant is, until next render phase You could change to this: const ProfilePage = ( { id }) => { //... if (loading || !participant) { return <div>Loading</div>; } //... } Share some suggestion: it would be better to build the key as an array to be able to use the fuzzy invalidation react-query provides. something like: ["posts", postId]; also, you don't need to call refetch after calling setPostId. setting the id will trigger a re-render, which will change the key. changing the key will automatically trigger a refetch. The useQuery React hook is the primary API for executing queries in an Apollo application. To run a query within a React component, call useQuery and pass it a GraphQL query string. When your component renders, useQuery returns an object from Apollo Client that contains loading, error, and data properties you can use to render your UI. The problem is that the value state stays null but when I refresh the component (I go into VSCode, I do a random modification and I save) it works. Here's the state and the function : export const pokemonFilters: PokemonFilters = [ { game: `yellow`, version: `yellow`, min: 0, max: 152, }, (a few more objects like that in the array) const [game ... But it's using a Promise, and Apollo useQuery and useLazyQuery do not send back a Promise. So I can't wait data from the query, before passing it to AsyncSelect For now, I made it with the classic Select component, and it's fine. But can be improved :) I have a code below where in I want to finish doSomethingFirst() before proceeding with the rest of the code: async doSomething() { const response = await doSomethingFirst(); // get the response Nov 14, 2020 · This can be achived using useEffect ( () => {// send the request}, [criteria]) Because, useEffect ensures that the request will send to server only if the setCriteria is finished. But, I am using react-query library. so that, it is not allowed to use useQuery inside useEffect. As A result, the request is send to server before it the setState is ... May 31, 2020 · 5 Answers Sorted by: 19 This works for me: const { refetch } = useQuery (CHECK_EMAIL, { skip: !values.email }) const handleSubmit = async () => { const res = await refetch ( { variables: { email: values.email }}) console.log (res) } Share Follow answered Dec 15, 2020 at 16:05 kurtko 1,978 4 30 46 2 Mar 14, 2019 · Normally I put [all, my, query, variables] into the useQuery to avoid multiple runs when other state is changing. @pak11273 I don't understand why you would need another state (useState). Using the data from useQuery should suffice, no? I needed the onComplete to trigger another query which needed data from the first query. Apr 10, 2020 · There is an input field and button that triggers updating variable that was passed to query. Variable updates correctly, but nothing happens with the query. Expected behavior When changing variables, query should be refetched and new results should be displayed. Versions vue: 2.6.11 @vue/apollo-composable: 4.0.0-alpha.8 apollo-boost: 0.4.7 May 31, 2020 · 14. I need to call a query when submit button is pressed and then handle the response. I need something like this: const [checkEmail] = useLazyQuery (CHECK_EMAIL) const handleSubmit = async () => { const res = await checkEmail ( { variables: { email: values.email }}) console.log (res) // handle response } Try #1: The problem is that the value state stays null but when I refresh the component (I go into VSCode, I do a random modification and I save) it works. Here's the state and the function : export const pokemonFilters: PokemonFilters = [ { game: `yellow`, version: `yellow`, min: 0, max: 152, }, (a few more objects like that in the array) const [game ... Apr 13, 2020 · Option 1: Update the GraphQL server to adhere to frontend needs. Once you realize that a screen needs to run multiple queries, ideally you can update your server to satisfy the needs of that particular screen. From the frontend’s point of view, a single query like this would be ideal: Jul 27, 2022 · I know that you can use the enabled option to force the hook to wait until a certain value exists before becoming active (seen in my invocation of useQuery below) but I can't find a way to provide additional variables for the hook to depend on. Any help is appreciated. The useQuery React hook is the primary API for executing queries in an Apollo application. To run a query within a React component, call useQuery and pass it a GraphQL query string. When your component renders, useQuery returns an object from Apollo Client that contains loading, error, and data properties you can use to render your UI. May 31, 2023 · My logic is intended as follows: In useEffect. get {id} from the router. trigger getUserFromId (id) with that id. setUser () with db response. Run the query. get user from state and pass it into variables: {} for query. run the query. I think that my problem is that the useEffect is running after my useQuery so the user i am trying to get from ... Server-side rendering (SSR) is a performance optimization for modern web apps. It enables you to render your app's initial state to raw HTML and CSS on the server before serving it to a browser. This means users don't have to wait for their browser to download and initialize React (or Angular, Vue, etc.) before content is available: Browser ... Apr 10, 2020 · There is an input field and button that triggers updating variable that was passed to query. Variable updates correctly, but nothing happens with the query. Expected behavior When changing variables, query should be refetched and new results should be displayed. Versions vue: 2.6.11 @vue/apollo-composable: 4.0.0-alpha.8 apollo-boost: 0.4.7 Aug 3, 2022 · This also caused a bug when I upgraded. For my use case I have a list of email threads on the left side and the current thread on the right side. Jun 27, 2021 · 2 Answers. useQuery ("fetchData", fetchData, { onSuccess: (data) => { console.log ("Get data!"); console.log (data); } }); As simple it could be. Thanks! The onSuccess callback function is called only when the data has been retrieved from the query. Carefully notice that this data is not the one that you're de-structuring from the useQuery ... Mar 10, 2021 · In the last post, we did a basic web service request using the useQuery hook. This post will expand this example and make a second request that requires data from the first request. Our requirement. At the moment, our React component requests the people resource in the Star Wars API and displays the character’s name. Dependent (or serial) queries depend on previous ones to finish before they can execute. To achieve this, it's as easy as using the enabled option to tell a query when it is ready to run: tsx. // Get the user. const { data: user } = useQuery({. queryKey: ['user', email], Unlike useQuery, useMutation doesn't execute its operation automatically on render. Instead, you call this mutate function. An object with field s that represent the current status of the mutation 's execution (data, loading, etc.) This object is similar to the object returned by the useQuery hook. For details, see Result. Example When my page loads I am using useQuery to retrieve the data. This works fine. The problem is when I make a change to the search form, this updates the state which causes an unwanted re-render which calls the server again. I want to call the server only when the page loads and when I click the search button. useQuery: Sep 10, 2021 · If you have a mutation that updates the title of your blog post, and the backend returns the complete blog post as a response, you can update the query cache directly via setQueryData: update-from-mutation-response. 1const useUpdateTitle = (id) => {. 2 const queryClient = useQueryClient() 3. 4 return useMutation({. Aug 27, 2019 · let client = new ApolloClient ( { ssrMode: true, link: authLink.concat (httpLink), cache: new InMemoryCache (), }); To clarify when I say 'block rendering' I mean hold off on SSR finalising until the server has the data to send the user so that the tag will appear immediately with the loaded page. reactjs. graphql. Nov 27, 2020 · Writing Our First Reactive Variable #. Here’s what a reactive variable looks like: import { makeVar } from '@apollo/client'; const myReactiveVariable = makeVar (/** An initial value can be passed in here.**/) The makeVar is imported from Apollo Client and is used to declare our a reactive variable. Jul 27, 2022 · I know that you can use the enabled option to force the hook to wait until a certain value exists before becoming active (seen in my invocation of useQuery below) but I can't find a way to provide additional variables for the hook to depend on. Any help is appreciated. Aug 26, 2020 · i need to make one of two queries based on the result of another request to a third party, is there a way to tell Apollo to wait for that request to finish and return the appropriate query for Apollo ? or should i just make the request and add the appropriate query manually to Apollo when i get the results ? Jul 19, 2020 · This solution is a nice balance between smooth experience that users can see the cached result first without waiting and accurate result, which then updates to the UI. The useQuery hook runs automatically on component render, whereas the useMutation hook returns a mutate function needed to trigger the mutation The useQuery hook is used to send queries, whereas the useMutation hook is used to send mutations The useQuery hook returns an array, whereas the useMutation hook returns an object Only the useQuery hook accepts variables The useQuery hook returns an ... Mar 24, 2020 · I have a graphql query and useQuery hook which return a lot of data. I start loading by click button and show when the data loading will be finished. Is it possible to use Promise to wait loading d... The useQuery React hook is the primary API for executing queries in an Apollo application. To run a query within a React component, call useQuery and pass it a GraphQL query string. When your component renders, useQuery returns an object from Apollo Client that contains loading, error, and data properties you can use to render your UI. Once again, we'll pass our query to the useQuery hook. This time, we also need to pass the corresponding launch's launchId to the query as a variable. We'll use React Router's useParams hook to access the launchId from our current URL. Dec 31, 2020 · Addition: If you want to await for resolving mutate, you can wrap the whole call in a Promise and resolve it in onSuccess (or onSuccess / onSettle) like this: await new Promise ( (resolve) => { mutatePostInfo.mutate (value, { onSuccess: () => resolve () }) }); – Froxx some suggestion: it would be better to build the key as an array to be able to use the fuzzy invalidation react-query provides. something like: ["posts", postId]; also, you don't need to call refetch after calling setPostId. setting the id will trigger a re-render, which will change the key. changing the key will automatically trigger a refetch. Jul 10, 2019 · This gives you the power to call the query however you want, whether it's in response to state/prop changes (i.e. with useEffect) or event handlers like button clicks. In English, it's like, "Hey React, this is how I want to query for the data". You can use fetchMore () returned from useQuery, which is primarily meant for pagination. const ... Mar 24, 2020 · I have a graphql query and useQuery hook which return a lot of data. I start loading by click button and show when the data loading will be finished. Is it possible to use Promise to wait loading d... The first parameter to useQuery is a string and this is how the hook knows what to cache when data is returned. You want to make sure this is unique. Another optional way of creating this “cache key”, is to pass it an array of strings. react-query will combine them into one string. As mentioned, you’ll want to make the cache key unique ... Mar 24, 2021 · Using GraphQLClient allows us to set the API key on each request. To get all blog posts from the API, we use the useGetPosts function. The useQuery hook expects a key ( get-posts) and a GraphQL query. The hook can receive more options, but for this example, we just need these two. Once the fetch is done, we return the data. May 31, 2020 · 14. I need to call a query when submit button is pressed and then handle the response. I need something like this: const [checkEmail] = useLazyQuery (CHECK_EMAIL) const handleSubmit = async () => { const res = await checkEmail ( { variables: { email: values.email }}) console.log (res) // handle response } Try #1: Mar 10, 2021 · I have the following code which hits a user api with useSWR, if I console log the user the first two times it renders undefined. useQuery is complaingng user.id is undefined which is true at some point in the render, however I have tried to pass a skip option and it works with passing a skip option for the cookie variable which has a similar ... Apollo Client allows you to make local modifications to your GraphQL data by updating the cache, but sometimes it's more straightforward to update your client-side GraphQL data by refetching queries from the server. In theory, you could refetch every active query after a client-side update, but you can save time and network bandwidth by ... Nov 28, 2022 · 1 It because: setParticipant change state asynchronously, useEffect invokes after render actually happend so even if data.participant is not empty, participant is, until next render phase You could change to this: const ProfilePage = ( { id }) => { //... if (loading || !participant) { return <div>Loading</div>; } //... } Share Mar 14, 2019 · Normally I put [all, my, query, variables] into the useQuery to avoid multiple runs when other state is changing. @pak11273 I don't understand why you would need another state (useState). Using the data from useQuery should suffice, no? I needed the onComplete to trigger another query which needed data from the first query. Usequery wait for variables
Dec 31, 2020 · Addition: If you want to await for resolving mutate, you can wrap the whole call in a Promise and resolve it in onSuccess (or onSuccess / onSettle) like this: await new Promise ( (resolve) => { mutatePostInfo.mutate (value, { onSuccess: () => resolve () }) }); – Froxx Jul 29, 2020 · The useQuery hook. The useQuery hook is a function used to register your data fetching code into React Query library. It takes an arbitrary key and an asynchronous function for fetching data and return various values that you can use to inform your users about the current application state. Feb 13, 2021 · 1 Answer. You don’t need an extra way to distribute your data, like react context. Just call useQuery with the same key wherever you need to, and react query will do the rest. It is best to abstract that away in a custom hook. refetch should only be used if you want to refetch with the exact same parameters. Jul 29, 2020 · The useQuery hook. The useQuery hook is a function used to register your data fetching code into React Query library. It takes an arbitrary key and an asynchronous function for fetching data and return various values that you can use to inform your users about the current application state. Mar 10, 2021 · I have the following code which hits a user api with useSWR, if I console log the user the first two times it renders undefined. useQuery is complaingng user.id is undefined which is true at some point in the render, however I have tried to pass a skip option and it works with passing a skip option for the cookie variable which has a similar ... Server-side rendering (SSR) is a performance optimization for modern web apps. It enables you to render your app's initial state to raw HTML and CSS on the server before serving it to a browser. This means users don't have to wait for their browser to download and initialize React (or Angular, Vue, etc.) before content is available: Browser ... some suggestion: it would be better to build the key as an array to be able to use the fuzzy invalidation react-query provides. something like: ["posts", postId]; also, you don't need to call refetch after calling setPostId. setting the id will trigger a re-render, which will change the key. changing the key will automatically trigger a refetch. Jul 29, 2020 · The Apollo platform is an implementation of GraphQL that transfers data between the cloud (the server) to the UI of your app. When you use Apollo Client, all of the logic for retrieving data, tracking, loading, and updating the UI is encapsulated by the useQuery hook (as in the case of React). Hence, data fetching is declarative. Aug 23, 2021 · variables will be the variables object passed in useQuery (eg, { name: "Fido" } in this example). We have the option here to return dummy data based on what variables are passed. Or, as we are doing in our test, we can ignore the return value and assert with expect that our spy was called with the variables we are expecting. Nov 19, 2019 · List of Steps: Step 1: Fetch a query stage. const GetStage = useQuery (confirmStageQuery, { variables: { input: { id: getId.id } } }); Step 2: Based on the response that we get from GetStage, we would like to switch between 2 separate queries. Oct 16, 2020 · read from localstorage, build variables for fetch (offset, limit, ...) fetch with variables; when filters or search change, refetch with modified variables; also save the modified variables to localstorage; My question is: should I use useQuery or useLazyQuery for this purpose. With useQuery, I may could do: May 31, 2020 · 5 Answers Sorted by: 19 This works for me: const { refetch } = useQuery (CHECK_EMAIL, { skip: !values.email }) const handleSubmit = async () => { const res = await refetch ( { variables: { email: values.email }}) console.log (res) } Share Follow answered Dec 15, 2020 at 16:05 kurtko 1,978 4 30 46 2 Jul 29, 2020 · The useQuery hook. The useQuery hook is a function used to register your data fetching code into React Query library. It takes an arbitrary key and an asynchronous function for fetching data and return various values that you can use to inform your users about the current application state. Oct 16, 2020 · read from localstorage, build variables for fetch (offset, limit, ...) fetch with variables; when filters or search change, refetch with modified variables; also save the modified variables to localstorage; My question is: should I use useQuery or useLazyQuery for this purpose. With useQuery, I may could do: Mar 14, 2023 · A query is an asynchronous data source bound to a unique key. TanStack Query uses the useQuery Hook to get the data. In the example, our useQuery takes two parameters, a unique key for the query and a function that returns a Promise. The useQuery returns the following: isLoading: In the fetching state Feb 7, 2021 · 1. Another thing to consider is the default configuration of you useQuery () hook which is provided by the QueryClient. For example rerendering on window focus is a default setting, which causes the hook to refetch and therefore rerender on every window focus (for example when clicking on devtools and click back into the DOM. Queries Basics. The useQuery function is a composable function that provides query state and various helper methods for managing the query. To execute a query the useQuery accepts a GraphQL query as the first argument. The query property is a string containing the query body or a DocumentNode (AST) created by graphql-tag. Aug 10, 2020 · the query qUsuario is: query qUsuario ($user:ID!) { user (id:$user) { email, firstName, lastName, } } but in the first time i got the follow error: [GraphQL error]: Variable "$user" of required type "ID!" was not provided. and then in few milliseconds later, the query works! Nov 27, 2020 · Writing Our First Reactive Variable #. Here’s what a reactive variable looks like: import { makeVar } from '@apollo/client'; const myReactiveVariable = makeVar (/** An initial value can be passed in here.**/) The makeVar is imported from Apollo Client and is used to declare our a reactive variable. Jul 27, 2022 · I know that you can use the enabled option to force the hook to wait until a certain value exists before becoming active (seen in my invocation of useQuery below) but I can't find a way to provide additional variables for the hook to depend on. Any help is appreciated. Unlike useQuery, useMutation doesn't execute its operation automatically on render. Instead, you call this mutate function. An object with field s that represent the current status of the mutation 's execution (data, loading, etc.) This object is similar to the object returned by the useQuery hook. For details, see Result. Example Oct 16, 2020 · read from localstorage, build variables for fetch (offset, limit, ...) fetch with variables; when filters or search change, refetch with modified variables; also save the modified variables to localstorage; My question is: should I use useQuery or useLazyQuery for this purpose. With useQuery, I may could do: Feb 7, 2021 · 1. Another thing to consider is the default configuration of you useQuery () hook which is provided by the QueryClient. For example rerendering on window focus is a default setting, which causes the hook to refetch and therefore rerender on every window focus (for example when clicking on devtools and click back into the DOM. Mar 14, 2023 · A query is an asynchronous data source bound to a unique key. TanStack Query uses the useQuery Hook to get the data. In the example, our useQuery takes two parameters, a unique key for the query and a function that returns a Promise. The useQuery returns the following: isLoading: In the fetching state The easiest way of keeping data up to date would be to use the polling feature from apollo. const { loading, error, data } = useQuery (QUERY, { variables: input, skip: !isActivated, pollInterval: 500, // Update every 500ms }); One way of refetching on demand would be to use the returned refetch function. Jan 26, 2020 · We use graphql-code-generator to generate the introspection file for us. Go to your back-end code, or wherever your graphql.gql file lies, and do: Install GraphQL Code Generator: yarn add graphql yarn add -D @graphql-codegen/cli. Run the initialization wizard: yarn graphql-codegen init. Nov 27, 2020 · Writing Our First Reactive Variable #. Here’s what a reactive variable looks like: import { makeVar } from '@apollo/client'; const myReactiveVariable = makeVar (/** An initial value can be passed in here.**/) The makeVar is imported from Apollo Client and is used to declare our a reactive variable. Aug 10, 2020 · the query qUsuario is: query qUsuario ($user:ID!) { user (id:$user) { email, firstName, lastName, } } but in the first time i got the follow error: [GraphQL error]: Variable "$user" of required type "ID!" was not provided. and then in few milliseconds later, the query works! Mar 10, 2020 · I want the data returned from useQuery to be undefined when the variables change. Reasoning is that if the variables for the query change, loading is set to true, but data remains set to the data from the previous query with old variables. Actual outcome: data is set to the previous variables data while the next query (with new variables) is in ... The problem is that the value state stays null but when I refresh the component (I go into VSCode, I do a random modification and I save) it works. Here's the state and the function : export const pokemonFilters: PokemonFilters = [ { game: `yellow`, version: `yellow`, min: 0, max: 152, }, (a few more objects like that in the array) const [game ... Feb 7, 2022 · DriesVerb September 7, 2022, 9:22am 5. I had this exact same issue and I found a workaround. What you want to do is wrap your graph query in a function and pass your nested variable as a parameter. You can also do this for the primary variables. export const functionName = (limit, skip, stateProvince) => { const CATALOG_QUERY = gql` query ... Optional for the useQuery hook, because the query can be provided as the first parameter to the hook. Required for the Query component. variables { [key: string]: any } An object containing all of the GraphQL variable s your query requires to execute. Each key in the object corresponds to a variable name, and that key's value corresponds to the ... Jul 29, 2020 · The Apollo platform is an implementation of GraphQL that transfers data between the cloud (the server) to the UI of your app. When you use Apollo Client, all of the logic for retrieving data, tracking, loading, and updating the UI is encapsulated by the useQuery hook (as in the case of React). Hence, data fetching is declarative. Mar 10, 2021 · I have the following code which hits a user api with useSWR, if I console log the user the first two times it renders undefined. useQuery is complaingng user.id is undefined which is true at some point in the render, however I have tried to pass a skip option and it works with passing a skip option for the cookie variable which has a similar ... Aug 3, 2022 · This also caused a bug when I upgraded. For my use case I have a list of email threads on the left side and the current thread on the right side. The problem is that the value state stays null but when I refresh the component (I go into VSCode, I do a random modification and I save) it works. Here's the state and the function : export const pokemonFilters: PokemonFilters = [ { game: `yellow`, version: `yellow`, min: 0, max: 152, }, (a few more objects like that in the array) const [game ... Each one of them will become a reactive object. These reactive queries will be executed automatically, both when the component is mounted, and if/when any variable objects change. Great! Now let's define the graphql query to be used: Open src/graphql-operations/index.ts and add the following code: src/graphql-operations/index.ts Copy Jun 27, 2021 · 2 Answers. useQuery ("fetchData", fetchData, { onSuccess: (data) => { console.log ("Get data!"); console.log (data); } }); As simple it could be. Thanks! The onSuccess callback function is called only when the data has been retrieved from the query. Carefully notice that this data is not the one that you're de-structuring from the useQuery ... A derived boolean from the status variable above, provided for convenience. isSuccess: boolean. A derived boolean from the status variable above, provided for convenience. isError: boolean. A derived boolean from the status variable above, provided for convenience. isLoadingError: boolean. Will be true if the query failed while fetching for the ... Apollo Client allows you to make local modifications to your GraphQL data by updating the cache, but sometimes it's more straightforward to update your client-side GraphQL data by refetching queries from the server. In theory, you could refetch every active query after a client-side update, but you can save time and network bandwidth by ... Aug 23, 2021 · variables will be the variables object passed in useQuery (eg, { name: "Fido" } in this example). We have the option here to return dummy data based on what variables are passed. Or, as we are doing in our test, we can ignore the return value and assert with expect that our spy was called with the variables we are expecting. Oct 16, 2020 · read from localstorage, build variables for fetch (offset, limit, ...) fetch with variables; when filters or search change, refetch with modified variables; also save the modified variables to localstorage; My question is: should I use useQuery or useLazyQuery for this purpose. With useQuery, I may could do: Feb 13, 2021 · 1 Answer. You don’t need an extra way to distribute your data, like react context. Just call useQuery with the same key wherever you need to, and react query will do the rest. It is best to abstract that away in a custom hook. refetch should only be used if you want to refetch with the exact same parameters. Mar 24, 2020 · I have a graphql query and useQuery hook which return a lot of data. I start loading by click button and show when the data loading will be finished. Is it possible to use Promise to wait loading d... Jul 19, 2020 · This solution is a nice balance between smooth experience that users can see the cached result first without waiting and accurate result, which then updates to the UI. The useQuery hook returns an object with three useful properties that we use in our app: indicates whether the query has completed and results have been returned. is an object that contains any errors that the operation has thrown. contains the results of the query after it has completed. Aug 26, 2020 · i need to make one of two queries based on the result of another request to a third party, is there a way to tell Apollo to wait for that request to finish and return the appropriate query for Apollo ? or should i just make the request and add the appropriate query manually to Apollo when i get the results ? refetch ( { where: { name_contains: value }} ); it refetches, but it doesn't pass variables to the query, I console logged the results. when running through the playground it passes variables. but this function provided by hooks doesn't pass variables. this is my query. const PLANTS_QUERY = gql` query { plants { plant_name is_active } } `; May 31, 2020 · 5 Answers Sorted by: 19 This works for me: const { refetch } = useQuery (CHECK_EMAIL, { skip: !values.email }) const handleSubmit = async () => { const res = await refetch ( { variables: { email: values.email }}) console.log (res) } Share Follow answered Dec 15, 2020 at 16:05 kurtko 1,978 4 30 46 2 I set up my own project and was experiencing the same issue when using useQuery. UPDATE: After adding an item, useQuery seems to work fine. Intended outcome: value of loading changes to false when data is available. Actual outcome: value of loading never updates to false. Version some suggestion: it would be better to build the key as an array to be able to use the fuzzy invalidation react-query provides. something like: ["posts", postId]; also, you don't need to call refetch after calling setPostId. setting the id will trigger a re-render, which will change the key. changing the key will automatically trigger a refetch. Nov 14, 2020 · This can be achived using useEffect ( () => {// send the request}, [criteria]) Because, useEffect ensures that the request will send to server only if the setCriteria is finished. But, I am using react-query library. so that, it is not allowed to use useQuery inside useEffect. As A result, the request is send to server before it the setState is ... Aug 10, 2020 · the query qUsuario is: query qUsuario ($user:ID!) { user (id:$user) { email, firstName, lastName, } } but in the first time i got the follow error: [GraphQL error]: Variable "$user" of required type "ID!" was not provided. and then in few milliseconds later, the query works! Jan 5, 2021 · I have a Higher Order Component and it accepts a prop variable input called "name". Inside HOC, I'm passing "name" as the input to useQuery. If the name's value changes, useQuery hits the backend API and fetches new results but if the value remains the same, there is no network call made by useQuery. HOC gets re-rendered but no n/w call. The easiest way of keeping data up to date would be to use the polling feature from apollo. const { loading, error, data } = useQuery (QUERY, { variables: input, skip: !isActivated, pollInterval: 500, // Update every 500ms }); One way of refetching on demand would be to use the returned refetch function. Queries Basics. The useQuery function is a composable function that provides query state and various helper methods for managing the query. To execute a query the useQuery accepts a GraphQL query as the first argument. The query property is a string containing the query body or a DocumentNode (AST) created by graphql-tag. The useQuery hook returns an object with three useful properties that we use in our app: indicates whether the query has completed and results have been returned. is an object that contains any errors that the operation has thrown. contains the results of the query after it has completed. Nov 28, 2022 · 1 It because: setParticipant change state asynchronously, useEffect invokes after render actually happend so even if data.participant is not empty, participant is, until next render phase You could change to this: const ProfilePage = ( { id }) => { //... if (loading || !participant) { return <div>Loading</div>; } //... } Share When my page loads I am using useQuery to retrieve the data. This works fine. The problem is when I make a change to the search form, this updates the state which causes an unwanted re-render which calls the server again. I want to call the server only when the page loads and when I click the search button. useQuery: Jul 14, 2022 · React Query’s useQuery(query, fn) is a Hook that fetches data based on the query passed to it and then stores the data in its parent variable. A query, in this case, consists of a unique key and an asynchronous function that is acted upon. When my page loads I am using useQuery to retrieve the data. This works fine. The problem is when I make a change to the search form, this updates the state which causes an unwanted re-render which calls the server again. I want to call the server only when the page loads and when I click the search button. useQuery: Aug 10, 2020 · the query qUsuario is: query qUsuario ($user:ID!) { user (id:$user) { email, firstName, lastName, } } but in the first time i got the follow error: [GraphQL error]: Variable "$user" of required type "ID!" was not provided. and then in few milliseconds later, the query works! But it's using a Promise, and Apollo useQuery and useLazyQuery do not send back a Promise. So I can't wait data from the query, before passing it to AsyncSelect For now, I made it with the classic Select component, and it's fine. But can be improved :) May 31, 2023 · My logic is intended as follows: In useEffect. get {id} from the router. trigger getUserFromId (id) with that id. setUser () with db response. Run the query. get user from state and pass it into variables: {} for query. run the query. I think that my problem is that the useEffect is running after my useQuery so the user i am trying to get from ... The useQuery hook returns an object with three useful properties that we use in our app: indicates whether the query has completed and results have been returned. is an object that contains any errors that the operation has thrown. contains the results of the query after it has completed. . Sandp500 history chart