getById

import React, {Component} from "react";
import c from './Account.module.css'
import ApiService from "../../../ApiService";

class Account extends Component {
    accountItem = {
        id: '',
        name: '',
        email: '',
        password: '',
        link: ''
    };

    constructor(props) {
        super(props);
        this.state = {
            item: this.accountItem
        };
        this.reloadAccount = this.reloadAccount.bind(this);
    }

    componentDidMount() {
        this.reloadAccount(this.id);
    }

    reloadAccount(id) {
        ApiService.fetchAccountById(id)
            .then((res) => {
                let account = res.data;
                this.setState({
                    id: account.id,
                    name: account.name,
                    email: account.email,
                    password: account.password,
                    link: account.link
                })
            })
    }

    render() {
        const {item} = this.state;

        return (
            <div>
                <div className={c.account}>
                    <ul>
                        <li>Id: {item.id}</li>
                        <li>Name: {item.name}</li>
                        <li>Email: {item.email}</li>
                        <li>Password: {item.password}</li>
                        <li>Link: {item.link}</li>
                    </ul>
                </div>
            </div>
        )
    }
}

export default Account;

ApiService:
const ACCOUNT_API_BASE_URL = 'http://localhost:8080/api/accounts';
...
fetchAccountById(id) {
        return axios.get(ACCOUNT_API_BASE_URL + '/' + id);
    }