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change the way to get message from onError option the useMutation hook #4004

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change the way to get message from onError option the useMutation hook #4004

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14 changes: 12 additions & 2 deletions src/content/8/es/part8b.md
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Original file line number Diff line number Diff line change
Expand Up @@ -606,10 +606,20 @@ const PersonForm = ({ setError }) => {
refetchQueries: [ {query: ALL_PERSONS } ],
// highlight-start
onError: (error) => {
const errors = error.graphQLErrors[0].extensions.error.errors
//To access the Apollo error message, for some reason this way it doesn't work, changing the code this way I was able to access the error message, and I was able to continue with the class without problems
// FROM THIS:
/* const errors = error.graphQLErrors[0].extensions.error.errors
const messages = Object.values(errors).map(e => e.message).join('\n')
setError(messages)
}
*/
// TO THIS:
const message = error.graphQLErrors[0].message
if (message) {
setError(message)
} else {
setError('something went wrong')
}
}
// highlight-end
})

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