小编160*_*Tâm的帖子

我在我的项目中使用 graphql 订阅，它是一个 Instagram 克隆，我正在做喜欢或不喜欢帖子的功能，我用它npx create-react-app来创建我的客户端，我用它express来制作我的服务器。

client在客户端，我这样设置：

src/apis/client.js

import {
  ApolloClient,
  ApolloLink,
  HttpLink,
  InMemoryCache,
  split,
} from 'apollo-boost';
import {getMainDefinition} from '@apollo/client/utilities';
import {WebSocketLink} from '@apollo/client/link/ws';
const httpUrl = 'http://localhost:5000/graphql';
const wsUrl = 'ws://localhost:5000/graphql';

const httpLink = ApolloLink.from([
  new ApolloLink((operation, forward) => {}),
  new HttpLink({uri: httpUrl}),
]);

const wsLink = new WebSocketLink({
  uri: wsUrl,
  options: {
    // connectionParams: () => {},
    lazy: true,
    reconnect: true,
  },
});

function isSubscription(operation) {
  const definition = getMainDefinition(operation.query);
  return …

我正在将 Redux 和 Redux Saga 用于我的在线购物网站项目，所以这就是我所做的：

actions/products.js

export const Types = {
  GET_PRODUCTS_REQUEST: 'products/get_products_request',
  GET_PRODUCTS_SUCCESS: 'products/get_products_success',
  CREATE_PRODUCT_REQUEST: 'products/create_product_request',
};

export const getProductRequest = () => ({
  type: Types.GET_PRODUCTS_REQUEST,
});

export const getProductSuccess = ({products}) => ({
  type: Types.GET_PRODUCTS_SUCCESS,
  payload: {
    products,
  },
});

export const createProductRequest = ({
  name,
  price,
  description,
  productImage,
}) => ({
  type: Types.CREATE_PRODUCT_REQUEST,
  payload: {
    name,
    price,
    description,
    productImage,
  },
});

reducers/products.js

import {Types} from '../actions/products';

const INTIAL_STATE = {
  products: [],
  error: '',
};

export …

我正在使用 Firebase 托管来部署我的应用程序

如您所见，我有 2 个应用程序：clone-a50db并且clone-eeb88该应用程序clone-eeb88已在使用中，所以现在我想将我的应用程序部署到另一个应用程序，即clone-a50db.

我就是这样做的：

firebase init
? Are you ready to proceed? Yes
? Which Firebase CLI features do you want to set up for this folder? Press Space to select features, then Enter to confirm your choices. Hosting: Configure and deploy Firebase Hosting sites` 

=== Project Setup

First, let's associate this project directory with a Firebase project.
You can create multiple project aliases by running firebase use --add, …