Laravel/Twilio WhatsApp 聊天机器人：11200 - Http 检索失败错误

Question

我尝试使用 Twilio 和 Laravel 复制以下博客文章中构建的 Whatsapp 聊天机器人： https://www.twilio.com/blog/build-whatsapp-currency-conversion-bot-twilio-laravel

我已经尝试复制这篇文章两次。但是，当我通过发送消息来测试机器人时，我在 Twilio 上收到一条错误消息：11200 - Http 检索失败。以下是 twilio 错误消息的更多详细信息：

调试事件SID

NOa58ef5b2f604abf9ea4718ea95d5ede4

服务SID

SM28801242e0831dd259f663885446f69f

资源SID

SM28801242e0831dd259f663885446f69f

时间戳

世界标准时间 2023 年 4 月 26 日上午 11:28

留言

URI null 的 URI 方案必须等于（忽略大小写）'http'、'https'、'ws' 或 'wss'

我尝试使用 ngrok 和 sail share 来使应用程序可用，但是，两者都不起作用。我收到这两个错误“500 内部服务器错误”。谁能告诉我可能的解决方案是什么？

如果需要任何其他信息，请告知。

机器人控制器：

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\CurrencyConverterClient;
use Twilio\TwiML\MessagingResponse;
use App\Currency;
use Exception;

class BotController extends Controller
{
    protected $client;

    public function __construct(CurrencyConverterClient $client)
    {
        $this->client = $client;
    }

    public function sendReplies(Request $request)
    {
        $response = new MessagingResponse();

        $body = $request->input('Body');

        $content = $this->determineMessageContent($body);

        $response->message($content);

        return $response;
    }

    private function determineMessageContent(string $content)
    {
        $formatContent = strtolower($content);

        if (strpos($formatContent, 'hello') !== false) {
            $message = "Welcome to the WhatsApp Bot for Currency Conversion \n";
            $message .= "Use the following format to chat with the bot \n";
            $message .= "Convert 5 USD to NGN \n";
            return $message;
        }

        if (strpos($formatContent, 'convert') !== false) {
            return $this->formatContentForConversion($formatContent);
        }

        return $this->formatContentForInvalidMessageFormat();
    }

    private function formatContentForConversion($formatContent)
    {
        $contentInArray = explode(" ", $formatContent);
        $itemsInArray = count($contentInArray);

        if ($itemsInArray < 5 || $itemsInArray > 5) {
            return $this->formatContentForInvalidMessageFormat();
        }

        return $this->performConversion($contentInArray);
    }

    private function formatContentForInvalidMessageFormat()
    {
        $message = "The Conversion Format is Invalid \n";
        $message .= "Please use the format \n";
        $message .= "Convert 5 USD to NGN";

        return $message;
    }

    private function performConversion(array $contentInArray)
    {
        $amount = $contentInArray[1];
        $baseCurrency = strtoupper($contentInArray[2]);
        $toCurrency = strtoupper($contentInArray[4]);

        if (!is_numeric($amount)) {
            return "Please provide a valid amount";
        }

        $items = $this->getCurrencyCode($baseCurrency, $toCurrency);

        if ($items->count() < 2) {
            return "Please enter a valid Currency Code";
        }

        try {
            $convertedAmount = $this->client->convertCurrency($amount, $baseCurrency, $toCurrency);
            return "{$amount} {$baseCurrency} is {$convertedAmount} {$toCurrency}";
        } catch (Exception $e) {
            return "We could not perform this conversion now, please bear with us";
        }
    }

    private function getCurrencyCode(string $baseCurrency, string $currency)
    {
        $items = [$baseCurrency, $currency];

        $currencyCode = Currency::findByCurrencyCode($items);

        return $currencyCode;
    }
}

CurrencySeeder.php：

<?php

namespace Database\Seeders;

use App\CurrencyConverterClient;
use Illuminate\Database\Seeder;
use Illuminate\Support\Facades\DB;

class CurrencySeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run(CurrencyConverterClient $client)
    {
        $currencies = $client->getSupportedCurrencies();

        foreach ($currencies as $currency => $key) {
            foreach ($key as $k) {
                DB::table('currencies')->insert([
                    'name' => $k['currencyName'],
                    'code' => $k['id']
                ]);
            }
        }
    }
}

web.php

<?php

use Illuminate\Support\Facades\Route;

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider and all of them will
| be assigned to the "web" middleware group. Make something great!
|
*/

Route::get('/', function () {
    return view('welcome');
});

Route::post('/currency', 'BotController@sendReplies');

Answer 1

我解决了这个问题。问题出在我的路由上。这是因为 Laravel 8.x 中的更改。查看这篇文章：使用 Laravel 8 时出现错误“目标类控制器不存在”