问题
How do I configure vue-apollo
,combined with @vue/apollo-composable
for consummation with @vue/composition-api
orVue3.0
?
Because although I get an default apolloClient
via using @nuxtjs/apollo
:
import { DefaultApolloClient } from "@vue/apollo-composable";
const myPlugin: Plugin = (context, inject) => {
const defaultClient = ctx.app.apolloProvider.defaultClient;
// do stuff with defaultClient, e.g. provide()
}
export default myPlugin
it's still empty instead of populated with my settings from nuxt.config.ts
.
How can I create an working vue-apollo
client
using @vue/apollo-composable
or how to create context.root.$apollo
in the first hand?
回答1:
Here is my current approach for setting up vue-apollo in nuxt. This will most likely be a moving target as both of these packages are relatively new and in active development.
Package versions are
"@vue/apollo-composable": "4.0.0-alpha.1"
"@vue/composition-api": "version": "0.3.4"
Apollo Setup
//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;
Then with the above, you include apollo in your nuxtconfig as a plugin
plugins: [
'~/plugins/vue-composition-api',
'~/plugins/apolloClient'
],
来源:https://stackoverflow.com/questions/59362168/how-to-get-an-vue-apollo-instance-with-vue-composition-api-and-nuxt-js