Calling a hook (useMutation) inside an event handler error: "Hooks can only be called inside of the body of a function component"

Question

我想在事件处理程序中使用突变。我的事件定义如下：

(JSX attribute) onOk?: ((e: React.MouseEvent<any, MouseEvent>) => void) | undefined

这就是我从客户端调用突变的方式

export const IMPORT_INFO_MUTATION = gql`
  mutation ImportPolicy($data: ImportPolicyInput!) {
    importPolicy(data:$data)
    {
      _id
      name
    }
 }

最后我这样称呼它：

      onOk={() => {

        useImportPolicyMutation({
          variables: {
            data: {
              jsonData: JSON.parse(importPolicyData)
            }
          },
        })
      }

`不用担心突变中的变量和参数。他们很好。问题是我收到以下错误：

Unhandled Rejection (Invariant Violation): Invalid hook call. Hooks can only 
be called inside of the body of a function component. This could happen for 
one of the following reasons:
1. You might have mismatching versions of React and the renderer (such as React DOM)

2. You might be breaking the Rules of Hooks

3. You might have more than one copy of React in the same app

它是一个钩子，因为 useMutation 是这样定义的：

  return ReactApolloHooks.useMutation<ImportPolicyMutation, ImportPolicyMutationVariables>(
   ImportPolicyDocument,
baseOptions
 )

那么，如何在事件处理程序中调用突变？

Answer 1

So, how do I call a mutation inside an event handler?

Hooks 仅适用于功能组件，不适用于基于 class 的组件（使用 apollo client.mutation() 或 <Mutation/> 组件）
useMutation returns 旨在按需使用的函数 - 此函数必须在事件处理程序中使用，而不是整个 useMutation

react-apollo-hooks 项目描述包含 usemutation 与事件处理程序一起使用的示例。

Calling a hook (useMutation) inside an event handler error: "Hooks can only be called inside of the body of a function component"

Calling a hook (useMutation) inside an event handler error: "Hooks can only be called inside of the body of a function component"

mutation

reactjs

graphql

react-hooks