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onCompleted doesn't have the expected scope

See original GitHub issue

Hi, I’m using apollo/client": “3.6.8” The issue I have is when I’m trying to use a function inside onCompleted of useQuery I’m having the error: Uncaught ReferenceError: Cannot access 'myFunction' before initialization

For example:

const { data }: any = useQuery<MyQueryResult>(MyDocument, {
   onCompleted: (e) => myFunction()
})

const myFunction = () => ....

to solve it I need to move myFunction on top of useQuery, Is it new expected behavior or a bug?

Issue Analytics

State:
Created a year ago
Comments:16 (14 by maintainers)

Top GitHub Comments

2reactions

dylanwulfcommented, Oct 11, 2022

Not sure if this will fix the issue, but give v3.7 a try. PR #9801 made a small change to the time when onCompleted gets called, so there’s a chance it might help.

2reactions

DerJacquescommented, Oct 11, 2022

@jpvajda Can we re-open this issue, as the original problem has not yet been resolved? 😃

I’m seeing the same issue as @wuarmin: When I try to update state in my onCompleted callback, the state update is reverted on the next render. This only happens when the result comes from the cache: If it is fresh, it doesn’t happen.

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