jonhilt

public class OrderController : Controller {

    // rest of code omitted

    public IActionResult ById(string id){
        var order =_orders.Find(id);
        return View(order);
    }
}

jonhilt

public class OrderController : Controller {

    // rest of code omitted

    public IActionResult ById(string id){
        var order = _orders.Find(id);
        if(order == null){
            return NotFound();
        }
        return Ok(order);

jonhilt

using System.Collections.Generic;
using Microsoft.AspNetCore.Mvc;

namespace UsersAPI.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class UserController : ControllerBase
    {
        [HttpGet]

jonhilt

public componentDidMount() {
    fetch('https://localhost:44348/api/user')
        .then(res => res.json())
        .then(users =>
            this.setState({ users })
        );
}

jonhilt

public async componentDidMount() {
    const result = await fetch('https://localhost:44348/api/user');
    const users = await result.json();
    this.setState({ users });
}

jonhilt

public render() {
    return (
        <div>
            <h1>My Users</h1>
            <table className="user-list">
                <tbody>
                    {this.state.users.map(user => 
                        <UserRow key={user.id} user={user} />)}
                </tbody>
            </table>

jonhilt

export default class MyUsers extends React.Component<any, any>{

    public state = {
        "users": [
            { "id": 1, "name": "Jon Hilton", "summary": "36 / Lead Developer" },
            { "id": 2, "name": "Janine Smith", "summary": "32 /  Senior Engineer" }
        ]
    };

    // rest of class omitted

jonhilt

private getUserData() {
    // ajax call to get data
    // return the data
}

jonhilt

private getUserData() {
    return [
        { id: 1, name: 'Jon', summary: '36 / Lead Developer' },
        { id: 2, name: 'Janine Smith', summary: '32 / Senior Engineer' }
    ];
}

jonhilt

public render() {
    return (
        <div>
            <h1>My Users</h1>
            <table className="user-list">
                <tbody>
                    {this.getUserData().map(user => 
                        <UserRow key={user.id} user={user} />)}
                </tbody>
            </table>