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---
id: dependent-queries
title: Dependent Queries
ref: docs/framework/react/guides/dependent-queries.md
---
[//]: # 'Example'
```js
// Get the user
const { data: user } = useQuery({
queryKey: ['user', email],
queryFn: () => getUserByEmail(email.value),
})
const userId = computed(() => user.value?.id)
const enabled = computed(() => !!user.value?.id)
// Then get the user's projects
const { isIdle, data: projects } = useQuery({
queryKey: ['projects', userId],
queryFn: () => getProjectsByUser(userId.value),
enabled, // The query will not execute until `enabled == true`
})
```
[//]: # 'Example'
[//]: # 'Example2'
```tsx
// Get the users ids
const { data: userIds } = useQuery({
queryKey: ['users'],
queryFn: getUsersData,
select: (users) => users.map((user) => user.id),
})
const queries = computed(() => {
return userIds.value.length
? userIds.value.map((id) => {
return {
queryKey: ['messages', id],
queryFn: () => getMessagesByUsers(id),
}
})
: []
})
// Then get the users messages
const usersMessages = useQueries({
queries, // if userIds.value is undefined or has no items, an empty array will be returned
})
```
[//]: # 'Example2'
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