[React] Axios で CRUD してみる | 心を無にして始める React

import axios from 'axios';
import React, { useEffect, useState } from 'react';
import './App.css';
import Button from './components/Button';
import Table from './components/Table';

axios.defaults.headers.get['Content-Type'] = 'application/json';
axios.defaults.headers.get.Accept = 'application/json';
axios.defaults.baseURL = 'http://localhost:3000/';

const COLUMNS = ['id', 'name'];

const curried = (func, ...other) => (x => func(x, ...other));

const getCats = (resolve, reject) => {
  axios.get('/cats').then(response => {
    if (resolve) {
      resolve(response);
    }
  }).catch(e => {
    if (reject) {
      reject(e);
    }
  });
}

function App() {
  const [cats, setCats] = useState([]);

  const resolve = (response, cb) => {
    setCats(response.data);
    if (cb) {
      cb();
    }
  }

  const reject = (e, cb) => {
    console.log(e);
    if (cb) {
      cb();
    }
  }

  useEffect(() => getCats(resolve, reject), []);

  const handlePost = (cb) => {
    const data = {
      name: 'test nyanko',
    };

    axios.post('/cats', data).then(() => {
      getCats(curried(resolve, cb), curried(reject, cb));
    });
  };

  const handlePut = (cb) => {
    const id = Object.values(cats).reverse()[0].id;
    const data = {
      name: 'test nyanko edited',
    };

    axios.put(`/cats/${id}`, data).then(() => {
      getCats(curried(resolve, cb), curried(reject, cb));
    });
  };

  const handleDelete = (cb) => {
    const id = Object.values(cats).reverse()[0].id;

    axios.delete(`/cats/${id}`).then(() => {
      getCats(curried(resolve, cb), curried(reject, cb));
    });
  };

  return (
    <>
      <div className="bg-dark" style={{ minHeight: '100vh' }}>
        <div className="p-5">
          <Table
            bordered
            hover
            striped
            variant="dark"
            columns={COLUMNS}
            rows={cats.map(cat => [cat.id, cat.name])}
          />
          <div className="d-flex">
            <Button className="me-2" onClick={handlePost}>Post Cat</Button>
            <Button className="me-2" onClick={handlePut}>Put Cat</Button>
            <Button className="me-2" variant="danger" onClick={handleDelete}>Delete Cat</Button>
          </div>
        </div>
      </div>
    </>
  );
}

export default App;