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linkApollo graphql 多客户端

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

以下我正在使用 graphql 挂钩

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

我们如何为 graphql-hooks 实现同样的目标？

我的要求取决于单选按钮的 selection 我需要在这些多个客户端之间切换，所有这些都在一个组件中使用多个客户端。在我的应用程序中，我使用 graphql-hook 我们将组件包装到客户端，这里相同的组件具有功能，其中取决于 select 客户端必须 switch.I 的单选按钮之一客户端，但需要集成多个客户端我用谷歌搜索但我没有找到所以在这里提出质疑。这可能吗？谁能帮帮忙

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，您可以遵循它：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 服务器运行。一个用于应用程序，一个用于分析。我根据需要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
    })
  });
}

Dashboard.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>
  )
};

Explore.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mutations.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
    }
  }
`;

如何在反应钩子中使用 graphql 钩子集成多个客户端

How to integrate Multiple clients using graphql hooks in react hooks

graphql

react-hooks

graphql-js