如何在反应钩子中使用graphql钩子集成多个客户端

Question

我想在我的 react-hooks 应用程序中集成多个客户端。我通过 Apollo 客户端使用 graphql-hooks 我们有一个模块来集成多个客户端

以下是 Apollo graphql 多客户端链接

    `https://www.npmjs.com/package/@titelmedia/react-apollo-multiple-clients`

以下我正在使用 graphql 钩子

https://www.npmjs.com/package/graphql-hooks

我们如何为 graphql-hooks 实现相同的目标？

我的要求取决于单选按钮的选择，我需要在使用多个客户端的一个组件中在这些多个客户端之间进行切换。 在我的应用程序中，我使用的是graphql-hook，我们将组件包装到客户端，这里相同的组件具有功能，其中根据选择的单选按钮之一，客户端必须切换。我有一个客户端，但需要集成多个我用谷歌搜索的客户，但我没有找到，所以在这里提出了质疑。 这可能吗？ 哪位大神可以帮忙看看

Answer 1

我们可以多次使用 new GraphQLClient() 来获取多个graphql客户端

Answer 2

这是一个很好的方法，你可以遵循它：https://www.loudnoises.us/next-js-two-apollo-clients-two-graphql-data-sources-the-easy-way/

Answer 3

我有两个中间件 graphql 服务器正在运行。一个用于应用程序，一个用于分析。根据我的需要，我以两种不同的方式进行操作，如下所示...

CubeClient.jsx

import { ApolloClient } from "apollo-client";
import { InMemoryCache } from "apollo-cache-inmemory";
import { SchemaLink } from "apollo-link-schema";
import { makeExecutableSchema } from "graphql-tools";

const cache = new InMemoryCache();
const defaultDashboardItems = [{"vizState":"{\"query\":{\"measures\":[\"Product.count\"],\"timeDimensions\":[{\"dimension\":\"Product.createdAt\"}],\"dimensions\":[\"Producttype.name\"],\"filters\":[],\"order\":{}},\"chartType\":\"bar\",\"orderMembers\":[{\"id\":\"Product.count\",\"title\":\"Product Count\",\"order\":\"none\"},{\"id\":\"Producttype.name\",\"title\":\"Producttype Name\",\"order\":\"none\"},{\"id\":\"Product.createdAt\",\"title\":\"Product Created at\",\"order\":\"none\"}],\"pivotConfig\":{\"x\":[\"Producttype.name\"],\"y\":[\"measures\"],\"fillMissingDates\":true,\"joinDateRange\":false},\"shouldApplyHeuristicOrder\":true,\"sessionGranularity\":null}","name":"Product Types","id":"2","layout":"{\"x\":0,\"y\":0,\"w\":24,\"h\":8}"},{"vizState":"{\"query\":{\"measures\":[\"Sale.total\"],\"timeDimensions\":[{\"dimension\":\"Sale.createdAt\",\"granularity\":\"day\"}],\"dimensions\":[\"Customer.firstname\"],\"order\":{\"Sale.total\":\"desc\"}},\"chartType\":\"area\",\"orderMembers\":[{\"id\":\"Sale.total\",\"title\":\"Sale Total\",\"order\":\"desc\"},{\"id\":\"Customer.firstname\",\"title\":\"Customer Firstname\",\"order\":\"none\"},{\"id\":\"Sale.createdAt\",\"title\":\"Sale Created at\",\"order\":\"none\"}],\"pivotConfig\":{\"x\":[\"Sale.createdAt.day\"],\"y\":[\"Customer.firstname\",\"measures\"],\"fillMissingDates\":true,\"joinDateRange\":false},\"shouldApplyHeuristicOrder\":true}","name":"Sale Total","id":"3","layout":"{\"x\":0,\"y\":8,\"w\":24,\"h\":8}"}]

export function getCubeClient(location){

  const getDashboardItems = () => {
    //   return JSON.parse(window.localStorage.getItem("dashboardItems")) || defaultDashboardItems;
    return defaultDashboardItems
  }

  const setDashboardItems = items => {
    return  window.localStorage.setItem("dashboardItems", JSON.stringify(items));
  }

  const nextId = () => {
    const currentId = parseInt(window.localStorage.getItem("dashboardIdCounter"), 10) || 1;
    window.localStorage.setItem("dashboardIdCounter", currentId + 1);
    return currentId.toString();
  };

  const toApolloItem = i => ({ ...i, __typename: "DashboardItem" });

  const typeDefs = `
    type DashboardItem {
      id: String!
      layout: String
      vizState: String
      name: String
    }

    input DashboardItemInput {
      layout: String
      vizState: String
      name: String
    }

    type Query {
      dashboardItems: [DashboardItem]
      dashboardItem(id: String!): DashboardItem
    }

    type Mutation {
      createDashboardItem(input: DashboardItemInput): DashboardItem
      updateDashboardItem(id: String!, input: DashboardItemInput): DashboardItem
      deleteDashboardItem(id: String!): DashboardItem
    }
  `;
  const schema = makeExecutableSchema({
    typeDefs,
    resolvers: {
      Query: {
        dashboardItems() {
          const dashboardItems = getDashboardItems();
          return dashboardItems.map(toApolloItem);
        },

        dashboardItem(_, { id }) {
          const dashboardItems = getDashboardItems();
          return toApolloItem(dashboardItems.find(i => i.id.toString() === id));
        }
      },
      Mutation: {
        createDashboardItem: (_, { input: { ...item } }) => {
          const dashboardItems = getDashboardItems();
          item = { ...item, id: nextId(), layout: JSON.stringify({}) };
          dashboardItems.push(item);
          setDashboardItems(dashboardItems);
          return toApolloItem(item);
        },
        updateDashboardItem: (_, { id, input: { ...item } }) => {
          const dashboardItems = getDashboardItems();
          item = Object.keys(item)
            .filter(k => !!item[k])
            .map(k => ({
              [k]: item[k]
            }))
            .reduce((a, b) => ({ ...a, ...b }), {});
          const index = dashboardItems.findIndex(i => i.id.toString() === id);
          dashboardItems[index] = { ...dashboardItems[index], ...item };
          setDashboardItems(dashboardItems);
          return toApolloItem(dashboardItems[index]);
        },
        deleteDashboardItem: (_, { id }) => {
          const dashboardItems = getDashboardItems();
          const index = dashboardItems.findIndex(i => i.id.toString() === id);
          const [removedItem] = dashboardItems.splice(index, 1);
          setDashboardItems(dashboardItems);
          return toApolloItem(removedItem);
        }
      }
    }
  });

  return  new ApolloClient({
    cache,
    uri: "http://localhost:4000",
    link: new SchemaLink({
      schema
    })
  });
}

仪表板.jsx

import { getCubeClient } from './CubeClient';
import { Query } from "react-apollo";

let cubeClient = getCubeClient()

const Dashboard = () => {
  const dashboardItem = item => (
    <div key={item.id} data-grid={defaultLayout(item)}>
      <DashboardItem key={item.id} itemId={item.id} title={item.name}>
        <ChartRenderer vizState={item.vizState} />
      </DashboardItem>
    </div>
  );

return(
  <Query query={GET_DASHBOARD_ITEMS} client={cubeClient}>
    {({ error, loading, data }) => {
      if (error) return <div>"Error!"</div>;
      if (loading) return (
            <div className="alignCenter">
              <Spinner color="#be97e8" size={48} sizeUnit="px" />
            </div>
          );
      if (data) {
        return (<DashboardView t={translate} dashboardItems={data && data.dashboardItems}>
          {data && data.dashboardItems.map(deserializeItem).map(dashboardItem)}
        </DashboardView>)
      } else {
        return <div></div>
      }
    }}
  </Query>
  )
};

探索.jsx

import { useQuery } from "@apollo/react-hooks";
import { withRouter } from "react-router-dom";
import ExploreQueryBuilder from "../components/QueryBuilder/ExploreQueryBuilder";
import { GET_DASHBOARD_ITEM } from "../graphql/queries";
import TitleModal from "../components/TitleModal.js";
import { isQueryPresent } from "@cubejs-client/react";
import PageHeader from "../components/PageHeader.js";
import ExploreTitle from "../components/ExploreTitle.js";
import { PageLayout } from '@gqlapp/look-client-react';
import Helmet from 'react-helmet';
import { translate } from '@gqlapp/i18n-client-react';
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { faAngleRight, faTrashAlt, faPlusCircle } from '@fortawesome/free-solid-svg-icons';
import settings from '@gqlapp/config';
import PropTypes from 'prop-types';
import { getCubeClient } from './CubeClient';

let cubeClient = getCubeClient()

const Explore = withRouter(({ history, location,t }) => {
  const [addingToDashboard, setAddingToDashboard] = useState(false);
  const params = new URLSearchParams(location.search);
  const itemId = params.get("itemId");
  const { loading, error, data } = useQuery(GET_DASHBOARD_ITEM, {
    client: cubeClient,
    variables: {
      id: itemId
    },
    skip: !itemId
  });

Titlemodal.jsx

import React from "react";
import { Modal, Input } from "antd";
import { useMutation } from "@apollo/react-hooks";
import { GET_DASHBOARD_ITEMS } from "../graphql/queries";
import {
  CREATE_DASHBOARD_ITEM,
  UPDATE_DASHBOARD_ITEM
} from "../graphql/mutations";
import { getCubeClient } from '../containers/CubeClient';

let cubeClient = getCubeClient()

const TitleModal = ({
  history,
  itemId,
  titleModalVisible,
  setTitleModalVisible,
  setAddingToDashboard,
  finalVizState,
  setTitle,
  finalTitle
}) => {
  const [addDashboardItem] = useMutation(CREATE_DASHBOARD_ITEM, {
    client: cubeClient,
    refetchQueries: [
      {
        query: GET_DASHBOARD_ITEMS
      }
    ]
  });
  const [updateDashboardItem] = useMutation(UPDATE_DASHBOARD_ITEM, {
    client: cubeClient,
    refetchQueries: [
      {
        query: GET_DASHBOARD_ITEMS
      }
    ]
  });

查询和突变.js

import gql from "graphql-tag";

export const GET_DASHBOARD_ITEMS = gql`
  query GetDashboardItems {
    dashboardItems {
      id
      layout
      vizState
      name
    }
  }
`;

export const GET_DASHBOARD_ITEM = gql`
  query GetDashboardItem($id: String!) {
    dashboardItem(id: $id) {
      id
      layout
      vizState
      name
    }
  }
`;

export const CREATE_DASHBOARD_ITEM = gql`
  mutation CreateDashboardItem($input: DashboardItemInput) {
    createDashboardItem(input: $input) {
      id
      layout
      vizState
      name
    }
  }
`;

export const UPDATE_DASHBOARD_ITEM = gql`
  mutation UpdateDashboardItem($id: String!, $input: DashboardItemInput) {
    updateDashboardItem(id: $id, input: $input) {
      id
      layout
      vizState
      name
    }
  }
`;

export const DELETE_DASHBOARD_ITEM = gql`
  mutation DeleteDashboardItem($id: String!) {
    deleteDashboardItem(id: $id) {
      id
      layout
      vizState
      name
    }
  }
`;