<template> <button @click="addBook">Add Book</button> </template> <script> import { gql } from 'apollo-boost'; export default { methods: { addBook() { this.$apollo.mutate({ mutation: gql` mutation AddBook($title: String, $author: String) { addBook(title: $title, author: $author) { id title author } } `, variables: { title: "New Book", author: "Author Name" } }).then(result => { console.log(result); }); } } } </script>
Vue.js and GraphQL Quiz
Want to learn more than this quiz offers you? Have a look at my Frontend web
development courses.
Create an account and save your quiz results
Login and save your results
OR
Question 1/15
How do you declare a mutation in a Vue component using Apollo Client?
<template> <button @click="addBook">Add Book</button> </template> <script> import { gql } from 'apollo-boost'; export default { methods: { addBook() { this.$apollo.mutate({ mutation: gql` mutation AddBook($title: String, $author: String) { addBook(title: $title, author: $author) { id title author } } `, variables: { title: "New Book", author: "Author Name" } }).then(result => { console.log(result); }); } } } </script>
Select your answer
Question 2/15
How can you automatically refetch a query in Apollo Client used in Vue.js based on some condition?
<script> export default { data() { return { refetchTimer: null }; }, apollo: { book: { query: BOOK_QUERY, variables() { return { isActive: true }; }, refetch() { return this.refetchTimer; } } }, mounted() { this.refetchTimer = setInterval(() => { this.$apollo.queries.book.refetch(); }, 30000); } } </script>
Select your answer
Question 3/15
How does Vue Apollo help in handling GraphQL queries within methods or lifecycle hooks?
methods: { fetchBook() { this.$apollo.query({ query: gql` query { book(id: "1") { title } } ` }).then(result => { console.log(result); }); } }
Select your answer
Question 4/15
Which of the following is a correct use of
VueApollo
in a main.js
file?
import Vue from 'vue'; import VueApollo from 'vue-apollo'; import ApolloClient from 'apollo-boost'; const apolloClient = new ApolloClient({ uri: 'http://localhost:4000/graphql', }); Vue.use(VueApollo); const apolloProvider = new VueApollo({ defaultClient: apolloClient }); new Vue({ apolloProvider, render: h => h(App), }).$mount('#app');
Select your answer
Question 5/15
What is an advantage of using GraphQL with Vue.js over REST?
Select your answer
Question 6/15
What is the GraphQL type created by Apollo Client to help identify and manage individual items in the cache?
Select your answer
Question 7/15
What is the purpose of fragments in GraphQL when used in Vue.js applications?
Select your answer
Question 8/15
How can you optimize performance with Apollo Client in a Vue.js application?
Select your answer
Question 9/15
What is the difference between `fetchPolicy: "network-only"` and `fetchPolicy: "cache-and-network"` in Apollo Client?
Select your answer
Question 10/15
What role does the useQuery hook play in Apollo Client when used with Vue Composition API?
Select your answer
Question 11/15
What is the purpose of Apollo Client in a Vue.js application?
Select your answer
Question 12/15
What is the recommended way to handle pagination with Apollo Client in a Vue.js application?
Select your answer
Question 13/15
Which of the following is a correct way to set up a GraphQL query using Apollo in a Vue component?
<template> <div>{{ bookData }}</div> </template> <script> import { gql } from 'apollo-boost'; export default { data() { return { bookData: null }; }, apollo: { bookData: gql` query { book { title author } } ` } } </script>
Select your answer
Question 14/15
How do you perform a query in a Vue.js with Apollo Client to dynamically fetch data based on a parameter?
<template> <div>{{ book.title }}</div> </template> <script> import { gql } from 'apollo-boost'; export default { data() { return { book: {} }; }, apollo: { book: { query: gql` query getBook($id: ID!) { book(id: $id) { title } } `, variables() { return { id: this.$route.params.id } }, } } } </script>
Select your answer
Question 15/15
In a Vue component with Apollo Client, what does the
apolloLoadingKey
option default to?
Select your answer
Your Results
You did not answer any questions correctly.
Your Answers
Question 1/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
How do you declare a mutation in a Vue component using Apollo Client?
Available answers
Mutations in Vue components are declared using the `$apollo.mutate` function, allowing updates to be performed and handled within the component methods.
Question 2/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
How can you automatically refetch a query in Apollo Client used in Vue.js based on some condition?
<script> export default { data() { return { refetchTimer: null }; }, apollo: { book: { query: BOOK_QUERY, variables() { return { isActive: true }; }, refetch() { return this.refetchTimer; } } }, mounted() { this.refetchTimer = setInterval(() => { this.$apollo.queries.book.refetch(); }, 30000); } } </script>
Available answers
Queries in Apollo Client can be automatically refetched based on conditions or intervals by utilizing the `refetch` method within the Apollo query options.
Question 3/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
How does Vue Apollo help in handling GraphQL queries within methods or lifecycle hooks?
methods: { fetchBook() { this.$apollo.query({ query: gql` query { book(id: "1") { title } } ` }).then(result => { console.log(result); }); } }
Available answers
Vue Apollo adds a `$apollo` object to Vue components, allowing developers to perform GraphQL queries and handle results within methods or lifecycle hooks directly.
Question 4/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
Which of the following is a correct use of <code>VueApollo</code> in a <code>main.js</code> file?
import Vue from 'vue'; import VueApollo from 'vue-apollo'; import ApolloClient from 'apollo-boost'; const apolloClient = new ApolloClient({ uri: 'http://localhost:4000/graphql', }); Vue.use(VueApollo); const apolloProvider = new VueApollo({ defaultClient: apolloClient }); new Vue({ apolloProvider, render: h => h(App), }).$mount('#app');
Available answers
`VueApollo` is used as a Vue plugin to integrate Apollo Client into Vue applications, allowing the use of GraphQL with Vue components.
Question 5/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
What is an advantage of using GraphQL with Vue.js over REST?
Available answers
The primary advantage of using GraphQL is that it allows clients to specify exactly what data they need, reducing over-fetching and under-fetching data.
Question 6/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
What is the GraphQL type created by Apollo Client to help identify and manage individual items in the cache?
Available answers
Apollo Client uses the `__typename` field along with object IDs to uniquely identify objects, helping manage caching and updating queries.
Question 7/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
What is the purpose of fragments in GraphQL when used in Vue.js applications?
Available answers
Fragments allow you to define a set of fields once and include it in multiple queries or mutations, promoting reusability and consistency across your GraphQL operations.
Question 8/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
How can you optimize performance with Apollo Client in a Vue.js application?
Available answers
Optimizing performance with Apollo Client involves using effective caching strategies and smartly refetching queries only when necessary to minimize unnecessary network requests.
Question 9/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
What is the difference between `fetchPolicy: "network-only"` and `fetchPolicy: "cache-and-network"` in Apollo Client?
Available answers
`network-only` fetches data exclusively from the network and temporarily disregards the cache, whereas `cache-and-network` first attempts to return a cached version while subsequently updating it by re-fetching from the network.
Question 10/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
What role does the useQuery hook play in Apollo Client when used with Vue Composition API?
Available answers
When using the Vue Composition API with Apollo Client, `useQuery` is used to execute and manage queries effectively within the composition functions.
Question 11/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
What is the purpose of Apollo Client in a Vue.js application?
Available answers
Apollo Client is used to manage and cache GraphQL queries and results, making it easy to integrate GraphQL into a Vue.js application.
Question 12/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
What is the recommended way to handle pagination with Apollo Client in a Vue.js application?
Available answers
The recommended approach is to use GraphQL's cursor-based pagination along with Apollo's `fetchMore` to load additional pages of data efficiently.
Question 13/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
Which of the following is a correct way to set up a GraphQL query using Apollo in a Vue component?
<template> <div>{{ bookData }}</div> </template> <script> import { gql } from 'apollo-boost'; export default { data() { return { bookData: null }; }, apollo: { bookData: gql` query { book { title author } } ` } } </script>
Available answers
In a Vue component, GraphQL queries can be defined inside the `apollo` option, allowing Apollo Client to automatically fetch data and bind it to component properties.
Question 14/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
How do you perform a query in a Vue.js with Apollo Client to dynamically fetch data based on a parameter?
<template> <div>{{ book.title }}</div> </template> <script> import { gql } from 'apollo-boost'; export default { data() { return { book: {} }; }, apollo: { book: { query: gql` query getBook($id: ID!) { book(id: $id) { title } } `, variables() { return { id: this.$route.params.id } }, } } } </script>
Available answers
Apollo Client in Vue.js allows you to define queries with dynamic parameters by using the `variables` option, which can be set based on component data or props.
Question 15/15
😊 Your
answer was correct
🙁 Your
answer was incorrect
In a Vue component with Apollo Client, what does the <code>apolloLoadingKey</code> option default to?
Available answers
In a Vue component using Apollo Client, `apolloLoadingKey` defaults to `loading`, which can be used in data bindings and computed properties to display Loading UI.