Published On: January 9th, 2023Categories: AI News

Here is an example of how you could create a React Context API and use the useReducer hook with TypeScript to manage state for a list of Amazon products stored in a Firestore database and more explanation for the code.

import React, { createContext, useReducer, Reducer, useEffect } from 'react';
import { db } from './firebase';

// Create a context for the products
export const ProductsContext = createContext<{
  products: Product[];
  dispatch: React.Dispatch<ProductAction>;
}>({
  products: [],
  dispatch: () => {},
});

// Define the types for the state and actions
type Product = {
  id: string;
  name: string;
  price: number;
};

type ProductAction =
  | { type: 'ADD'; product: Product }
  | { type: 'DELETE'; id: string }
  | { type: 'UPDATE'; id: string; product: Product }
  | { type: 'SET'; products: Product[] };

// Define the reducer function
const productsReducer: Reducer<Product[], ProductAction> = (state, action) => {
  switch (action.type) {
    case '

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