Why am I able to only send one arguement to mutation function? | TanStack | Page 1

kind valley Oct 31, 2023, 6:08 PM

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I'm currently working with the useMutation hook, and I'm encountering an issue. My mutation function expects two arguments, but when I use .mutate(firstArg, secondArg), only the first argument is being passed to my mutation function.

kind valley Oct 31, 2023, 6:24 PM

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Why am I able to only send one arguement to mutation function?

tepid spindle Oct 31, 2023, 6:26 PM

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I forget the reasoning behind it but you need to pass your variables as one object: deleteSessionMutation.mutate({ sessionId, userId }) and change your deleteSession function to deconstruct them: deleteSession = async ({ sessionId, userId }) => {...}

kind valley Oct 31, 2023, 6:26 PM

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ok thanks, thats so weird tho

final smelt Oct 31, 2023, 6:44 PM

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because the second argument is an object that has (additional) callbacks

native moon Oct 31, 2023, 6:46 PM

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https://tkdodo.eu/blog/mastering-mutations-in-react-query#mutations-only-take-one-argument-for-variables

Mastering Mutations in React Query

Learn all about the concept of performing side effects on the server with React Query.

kind valley Oct 31, 2023, 6:48 PM

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Appreciate the hlep and pointing me to documentation

tepid spindle Oct 31, 2023, 6:49 PM

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I've come to learn if I have a question Dominik either already documented it or wrote a blog about it lol

final smelt Oct 31, 2023, 6:53 PM

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can I tweet this 😂 ?

tepid spindle Oct 31, 2023, 6:54 PM

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Haha sure

final smelt Oct 31, 2023, 6:54 PM

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can obfuscate your handle if you want

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or mention you on twitter 😂

#Why am I able to only send one arguement to mutation function?