我正在我的Nuxt-Ts应用程序中尝试使用@vue/apollo-composable。这是示例应如何将其注入“正常” Vue应用程序的根实例中的方法:
import { provide } from '@vue/composition-api'
import { DefaultApolloClient } from '@vue/apollo-composable'
const app = new Vue({
setup () {
provide(DefaultApolloClient, apolloClient)
},
render: h => h(App),
})
问题:我不知道如何访问Nuxt-TS中的根实例 。
我尝试制作一个插件,但是它直接注入了根实例(这是不对的,因为@vue/apollo-composable
使用的是composition-api::provide()
,它创建了自己的属性_provided
。
如果我使用nuxt插件的inject
和$
,则会串联在一起。而且,如果我通过_provided
直接写一个ctx.app._provided =
对象,它不会粘住。
import { DefaultApolloClient } from "@vue/apollo-composable";
const myPlugin: Plugin = (context, inject) => {
const defaultClient = ctx.app.apolloProvider.defaultClient;
inject(DefaultApolloClient.toString(), defaultClient) // results in $$ and also composition-api::inject is checking inside `_provided[DefaultApolloClient]`
}
export default myPlugin
我不能像原始示例中那样调用provide()
,因为它只能在VueComponent::setup
函数中使用。
我还尝试创建一个组件,并仅在需要它的页面上使用它(虽然有点违反了在根实例中安装的目的)
const InstallGraphQl = createComponent({
name: "InstallGraphQl",
setup(_props, ctx: any) {
debugger;
const apolloClient = ctx.app.apolloProvider.defaultClient;
ctx.provide(DefaultApolloClient, apolloClient);
},
});
export default createComponent({
name: "DefaultLayout",
components: {
InstallGraphQl
},
setup(_props, _ctx: SetupContext) {
const { result } = useQuery(SharedLayoutQuery);
return { result };
},
});
但是随后在setup
...
InstallGraphQl::setup
。
编辑:有关@vue/apollo-composable
的更多信息,请参见此处的讨论:https://github.com/vuejs/vue-apollo/issues/687
答案 0 :(得分:3)
只需将setup()
设置为根选项:
/* plugins/provide-apollo-client.js */
import {provide} from '@vue/composition-api'
import {DefaultApolloClient} from '@vue/apollo-composable'
export default function ({app}) {
app.setup = () => {
provide(DefaultApolloClient, ...)
}
// Or, use local mixin
app.mixins = (app.mixins || []).concat({
setup () {...},
})
}
/* nuxt.config.js */
export default {
plugins: ['~/plugins/provide-apollo-client'],
}
虽然对nuxt-ts不太熟悉,但是我认为代码应该可以正常工作。
答案 1 :(得分:2)
我不使用nuxt-ts,但是在nuxt应用程序中确实有此设置。在我的default.vue模板中,我是这样提供的。
<script>
import { provide } from '@vue/composition-api';
import { ApolloClients } from '@vue/apollo-composable'
export default {
setup(props, context) {
provide(ApolloClients, {
default: context.root.$apollo,
})
}
}
</script>
软件包版本为
"@vue/apollo-composable": "4.0.0-alpha.1"
"@vue/composition-api": "version": "0.3.4"
Apollo设置
//apolloClient.js
import { ApolloClient } from 'apollo-client';
import { InMemoryCache } from 'apollo-cache-inmemory';
import link from './link';
export default function apolloClient(_, inject) {
const cache = new InMemoryCache();
const client = new ApolloClient({
// Provide required constructor fields
cache,
link,
// Provide some optional constructor fields
name: 'apollo-client',
queryDeduplication: false,
defaultOptions: {
watchQuery: {
fetchPolicy: 'cache-and-network',
},
},
});
inject('apollo', client);
}
// link.js
import { split } from 'apollo-link';
import { HttpLink } from 'apollo-link-http';
import { WebSocketLink } from 'apollo-link-ws';
import { getMainDefinition } from 'apollo-utilities';
import fetch from 'unfetch';
const httpLink = new HttpLink({
uri: 'http://localhost:8080/v1/graphql',
credentials: 'same-origin',
fetch,
});
const wsParams = {
uri: `ws://localhost:8080/v1/graphql`,
reconnect: true,
};
if (process.server) {
wsParams.webSocketImpl = require('ws');
}
const wsLink = new WebSocketLink(wsParams);
// using the ability to split links, you can send data to each link
// depending on what kind of operation is being sent
const link = split(
// split based on operation type
({ query }) => {
const definition = getMainDefinition(query);
return (
definition.kind === 'OperationDefinition' &&
definition.operation === 'subscription'
);
},
wsLink,
httpLink,
);
export default link;
然后在上面的代码中,将apollo作为插件包含在nuxtconfig中
plugins: [
'~/plugins/vue-composition-api',
'~/plugins/apolloClient'
],
答案 2 :(得分:1)
nuxt-composition-api
中现在有一个官方的onGlobalSetup助手
根据文档,您可以像这样在插件中简单地使用它:
import { onGlobalSetup } from 'nuxt-composition-api'
export default () => {
onGlobalSetup(() => {
provide('globalKey', true)
})
}