Usepreloadedquery example

1. What is the difference between useLazyLoadQuery and usePreloadedQuery?
2. What is a preloaded query relay?
3. How do you pass multiple arguments in GraphQL query?
4. When to use useQuery vs useLazyQuery?
5. What is the difference between useQuery and client query?
6. What are the five types of query?
7. What is the purpose of query provider?
8. Which are the two main types of query technique?
9. Is GraphQL good for large data?
10. How do you pass parameters in GraphQL query?
11. How do you pass multiple parameters?
12. How do I pull specific data from an API?
13. How can I fetch data from API?
14. Does useQuery run on every render?
15. What is the difference between fetchQuery and useQuery?
16. What is the difference between useMutation and useQuery?
17. What is difference between useQuery and useMutation?
18. What is the use of useLazyQuery?
19. Does useLazyQuery return a promise?
20. How do you refetch a query after a mutation?
21. What are Gql mutations?
22. Is useMutation asynchronous?
23. What is lazy query in GraphQL?
24. Does useQuery run on every render?
25. What is the difference between React useQuery and useEffect?
26. What is the difference between useMutation and useQuery in Apollo?

What is the difference between useLazyLoadQuery and usePreloadedQuery?

usePreloadedQuery sends the request while the component is rendering, and can suspend with a loading state if the component is ready before the query returns. On the other hand useLazyLoadQuery sends the request after the component has rendered.

What is a preloaded query relay?

usePreloadedQuery ​

Hook used to access data fetched by an earlier call to loadQuery or with the help of useQueryLoader . This implements the "render-as-you-fetch" pattern: Call the loadQuery callback returned from useQueryLoader .

How do you pass multiple arguments in GraphQL query?

Multiple arguments can be used together in the same query. For example, you can use the where argument to filter the results and then use the order_by argument to sort them.

When to use useQuery vs useLazyQuery?

The useLazyQuery hook is perfect for executing queries in response to events besides component rendering. Unlike with useQuery , when you call useLazyQuery , it does not immediately execute its associated query.

What is the difference between useQuery and client query?

Other than structural differences (e.g. useQuery accepts two parameters, whereas client. query takes only one parameter - the options objects), is it safe to use one over the other?

What are the five types of query?

There are five types of query in Access. They are: Select queries • Action queries • Parameter queries • Crosstab queries • SQL queries. Select Queries Select query is the simplest and the most common type of query.

What is the purpose of query provider?

Query providers allow you query data from diverse data sources. They support built-in templated queries as well as ad-hoc queries. The data is typically returned as a pandas DataFrame.

Which are the two main types of query technique?

Two types of queries are available, snapshot queries and continuous queries.

Is GraphQL good for large data?

Because GraphQL allows the client to specify what data it needs, the server doesn't send excess data, which could reduce the app's performance when bandwidth is limited.

How do you pass parameters in GraphQL query?

When you're passing arguments in code, it's generally better to avoid constructing the whole query string yourself. Instead, you can use $ syntax to define variables in your query, and pass the variables as a separate map. . then(data => console.

How do you pass multiple parameters?

The value for the corresponding parameter is given after the symbol "equals" (=). Multiple parameters can be passed through the URL by separating them with multiple "&".

How do I pull specific data from an API?

The most straightforward way of accessing data from an API endpoint is simply viewing it in the browser. As long as you're connected to the internet, you should be able to preview most API's data regardless of its format.

How can I fetch data from API?

The Fetch API allows you to asynchronously request for a resource. Use the fetch() method to return a promise that resolves into a Response object. To get the actual data, you call one of the methods of the Response object e.g., text() or json() . These methods resolve into the actual data.

Does useQuery run on every render?

The useQuery hook will make one fetch request on initial load, and will not refetch on subsequent renders. The useQuerey hook will trigger a re-render when it receives a response from the graphql backend (whether that response is data or an error ).

What is the difference between fetchQuery and useQuery?

fetchQuery is an imperative way to fetch data. You cannot call this during rendering, because it would be a side-effect and you cannot await the result. So you would need to spawn a useEffect. The other difference is that useQuery creates a subscription to the queryKey, but fetchQuery does not.

What is the difference between useMutation and useQuery?

useQuery is declarative, useMutation is imperative. By that, I mean that queries mostly run automatically. You define the dependencies, but React Query takes care of running the query immediately, and then also performs smart background updates when deemed necessary.

What is difference between useQuery and useMutation?

The difference between useQuery and useMutation are minor. While useQuery accepts multiple options, including query and variables , the useMutation hook accepts the mutation definition as its only argument. It still returns an array of [state, executeMutation] .

What is the use of useLazyQuery?

The useLazyQuery hook is perfect for executing queries in response to events other than component rendering. This hook acts just like useQuery , with one key exception: when useLazyQuery is called, it does not immediately execute its associated query.

Does useLazyQuery return a promise?

The useLazyQuery function returns a promise that fulfills with a query result when the query succeeds or fails.

How do you refetch a query after a mutation?

Refetching is especially common after a mutation, so mutate functions accept options like refetchQueries and onQueryUpdated to specify which queries should be refetched, and how. To selectively refetch queries outside of a mutation, you instead use the refetchQueries method of ApolloClient , which is documented here.

What are Gql mutations?

A Mutation is a GraphQL Operation that allows you to insert new data or modify the existing data on the server-side. You can think of GraphQL Mutations as the equivalent of POST , PUT , PATCH and DELETE requests in REST.

Is useMutation asynchronous?

A function that performs an asynchronous task and returns a promise.

What is lazy query in GraphQL?

useLazyLoadQuery ​ Hook used to fetch a GraphQL query during render. This hook can trigger multiple nested or waterfalling round trips if used without caution, and waits until render to start a data fetch (when it can usually start a lot sooner than render), thereby degrading performance.

Does useQuery run on every render?

The useQuery hook will make one fetch request on initial load, and will not refetch on subsequent renders. The useQuerey hook will trigger a re-render when it receives a response from the graphql backend (whether that response is data or an error ).

What is the difference between React useQuery and useEffect?

The difference between React-Query and the useEffect is that React-Query will initially return the previously fetched data and then re-fetch. const isLoading, isFetching, error, data, status = useQuery(); This makes our code a lot simpler and easy to maintain, as aforementioned.

What is the difference between useMutation and useQuery in Apollo?

The difference is the flow of data. useQuery is used to query async data, useMutation is used to mutate it.