Graphql,react-apollo如何在加载组件状态时将变量传递给查询

Question

我有一个简单的react组件,当用户提出请求时,必须从服务器加载数据.问题是我不知道如何传输动态变量speakerUrl并在组件加载状态之前访问它.当然我可以从中访问它this.props.params,但组件未加载,当我进行graphql查询时我无法访问它.查询 - QuerySpeaker当我手动设置url变量时工作正常.

路由器

<Route path="/speaker/:speakerUrl" component={SpeakerPage} />

组件 - SpeakerPage

import React from 'react';
import { graphql } from 'react-apollo';

import { QuerySpeaker } from '../redux/graphql/querys';

class SpeakerPage extends React.Component {
    render( ) {
        console.log( this.props );
        return (
            <div className="ui container">
                <div className="ui grid">
                    <div className="row">
                        Hello
                    </div>
                </div>
            </div>
        )
    }
}

export default graphql(QuerySpeaker, {
     options: ({ url }) => ({ variables: { url } }) <- here is my problem, how can i set this url variable?
})( SpeakerPage );

Answer 1

根据react-apollo 文档,传递给options函数的参数是传递给组件的props对象.当react-router渲染您的组件,它传递的params是一个道具.这意味着params应该是传递给options函数的对象的属性.

export default graphql(QuerySpeaker, {
  options: (props) => ({ variables: { url: props.match.params.speakerUrl } })
})( SpeakerPage );