Created
March 17, 2023 10:21
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How to type multiple fragments which share the same reference
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// Component 1 | |
const fragment1 = graphql` | |
fragment Component1fragment1 on User { | |
id | |
} | |
`; | |
function Component1({ user }: { user: Component1fragment1$key }) { | |
const data = useFragment(fragment1, user); | |
return <div>{user.id}</div>; | |
} | |
// Component 2 | |
const fragment2 = graphql` | |
fragment Component2fragment2 on User { | |
id | |
} | |
`; | |
function Component2({ user }: { user: Component2fragment2$key }) { | |
const data = useFragment(fragment2, user); | |
return <div>{user.id}</div>; | |
} | |
// Component 3 | |
const fragment3 = graphql` | |
fragment Component3fragment3 on User { | |
id | |
} | |
`; | |
function Component3({ user }: { user: Component3fragment3$key }) { | |
const data = useFragment(fragment3, user); | |
return <div>{user.id}</div>; | |
} | |
// Page Component | |
const query = graphql` | |
query TestQuery { | |
viewer { | |
user { | |
...fragment1 | |
...fragment2 | |
...fragment3 | |
} | |
} | |
} | |
`; | |
// user is passed in from the parent component or router | |
function ExamplePage({ user }: { | |
user: ???; // How do I type this so that the fragments dont throw a type error? | |
}) { | |
return ( | |
<div> | |
<Component1 user={data.viewer.user} /> | |
<Component2 user={data.viewer.user} /> | |
<Component3 user={data.viewer.user} /> | |
</div> | |
); | |
} |
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