Apollo GraphQL React - 如何在点击时查询? [英] Apollo GraphQL React - how to query on click?

问题描述

在 Apollo React 文档中http://dev.apollodata.com/react/queries.html#basics 有显示组件时自动获取的示例，但我想在单击按钮时运行查询.我看到一个在单击按钮时重新"获取查询的示例，但我不希望它最初进行查询.我看到有一种方法可以调用突变，但是如何调用查询?

In the Apollo React docs http://dev.apollodata.com/react/queries.html#basics there are examples of fetching automatically when the component is shown, but I'd like to run a query when a button is clicked. I see an example to "re"fetch a query when a button is clicked, but I don't want it to query initially. I see there is a way to call mutations, but how do you call queries?

推荐答案

您可以使用 withApollo 高阶组件将引用传递给 Apollo Client，如下所述:https://www.apollographql.com/docs/react/api/react-apollo.html#withApollo

You can do it by passing a reference to Apollo Client using the withApollo higher-order-component, as documented here: https://www.apollographql.com/docs/react/api/react-apollo.html#withApollo

然后，您可以对传入的对象调用 client.query，如下所示:

Then, you can call client.query on the passed in object, like so:

class MyComponent extends React.Component {
  runQuery() {
    this.props.client.query({
      query: gql`...`,
      variables: { ... },
    });
  }

  render() { ... }
}

withApollo(MyComponent);

出于好奇，对点击事件运行查询的目标是什么?也许有更好的方法来实现基本目标.

Out of curiosity, what's the goal of running a query on a click event? Perhaps there is a better way to accomplish the underlying goal.

这篇关于Apollo GraphQL React - 如何在点击时查询?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！