Part8: Handling mutation errors

Juemuren · web-flow · commit e978cfff56cf · 2025-09-22T00:29:44.000+08:00
fix the function to get error message
diff --git a/src/content/8/en/part8b.md b/src/content/8/en/part8b.md
@@ -598,7 +598,7 @@ const PersonForm = ({ setError }) => {
     refetchQueries: [  {query: ALL_PERSONS } ],
     // highlight-start
     onError: (error) => {
-      const messages = error.graphQLErrors.map(e => e.message).join('\n')
+      const messages = error.message
       setError(messages)
     }
     // highlight-end

Original file line number	Diff line number	Diff line change
`@@ -598,7 +598,7 @@ const PersonForm = ({ setError }) => {`
`598`	`598`	`refetchQueries: [ {query: ALL_PERSONS } ],`
`599`	`599`	`// highlight-start`
`600`	`600`	`onError: (error) => {`
`601`		`- const messages = error.graphQLErrors.map(e => e.message).join('\n')`
	`601`	`+ const messages = error.message`
`602`	`602`	`setError(messages)`
`603`	`603`	`}`
`604`	`604`	`// highlight-end`