Laravel对接ApiMedic的TokenGenerator集成实现问询

1. 创建TokenGenerator类 #

在app/Services/ApiMedic目录下创建TokenGenerator.php（目录不存在则自行创建），实现Token的获取与缓存逻辑：

<?php

namespace App\Services\ApiMedic;

use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Config;

class TokenGenerator
{
    protected $apiUrl;
    protected $userId;
    protected $apiKey;

    public function __construct()
    {
        $this->apiUrl = Config::get('services.apimedic.token_url', 'https://sandbox-healthservice.priaid.ch/login');
        $this->userId = Config::get('services.apimedic.user_id');
        $this->apiKey = Config::get('services.apimedic.api_key');
    }

    public function getValidToken()
    {
        // 检查缓存是否存在有效Token
        $cachedToken = Cache::get('apimedic_token');
        $validThrough = Cache::get('apimedic_token_valid_through');

        if ($cachedToken && $validThrough && now()->timestamp < $validThrough) {
            return $cachedToken;
        }

        // 请求新Token
        $response = Http::asForm()->post($this->apiUrl, [
            'userId' => $this->userId,
            'apiKey' => $this->apiKey,
        ]);

        if (!$response->successful()) {
            throw new \Exception('获取ApiMedic Token失败: ' . $response->body());
        }

        $tokenData = $response->json();
        $token = $tokenData['Token'];
        $validThrough = strtotime($tokenData['ValidThrough']);

        // 缓存Token，提前1分钟过期避免请求时Token失效
        $cacheDuration = $validThrough - now()->timestamp - 60;
        Cache::put('apimedic_token', $token, $cacheDuration);
        Cache::put('apimedic_token_valid_through', $validThrough, $cacheDuration);

        return $token;
    }
}

2. 配置.env与服务参数 #

确保.env中已配置密钥：

APIMEDIC_USER_ID=你的用户ID
APIMEDIC_API_KEY=你的API密钥
APIMEDIC_BASE_URL=https://sandbox-healthservice.priaid.ch/

在config/services.php中添加统一配置项：

'apimedic' => [
    'user_id' => env('APIMEDIC_USER_ID'),
    'api_key' => env('APIMEDIC_API_KEY'),
    'base_url' => env('APIMEDIC_BASE_URL', 'https://sandbox-healthservice.priaid.ch/'),
    'token_url' => env('APIMEDIC_TOKEN_URL', 'https://sandbox-healthservice.priaid.ch/login'),
],

3. 集成到DiagnosisClient #

修改现有DiagnosisClient，注入TokenGenerator并自动携带有效Token：

<?php

namespace App\Services\ApiMedic;

use Illuminate\Support\Facades\Http;

class DiagnosisClient
{
    protected $baseUrl;
    protected $tokenGenerator;

    public function __construct(TokenGenerator $tokenGenerator)
    {
        $this->baseUrl = config('services.apimedic.base_url');
        $this->tokenGenerator = $tokenGenerator;
    }

    public function getDiagnosis(array $params)
    {
        $token = $this->tokenGenerator->getValidToken();

        return Http::withHeaders([
            'Authorization' => 'Bearer ' . $token,
            'Accept' => 'application/json',
        ])->get($this->baseUrl . 'diagnosis', $params);
    }

    // 其他接口方法（如症状查询）按相同逻辑添加Token请求头
}

4. 在ApiMedicService中使用 #

保持原有ApiMedicService的依赖注入逻辑，Laravel容器会自动解析TokenGenerator：

<?php

namespace App\Services;

use App\Services\ApiMedic\DiagnosisClient;

class ApiMedicService
{
    protected $diagnosisClient;

    public function __construct(DiagnosisClient $diagnosisClient)
    {
        $this->diagnosisClient = $diagnosisClient;
    }

    public function getPatientDiagnosis($symptoms, $gender, $yearOfBirth)
    {
        $response = $this->diagnosisClient->getDiagnosis([
            'symptoms' => json_encode($symptoms),
            'gender' => $gender,
            'yearOfBirth' => $yearOfBirth,
            'language' => 'en-gb', // 根据需求调整语言
        ]);

        if (!$response->successful()) {
            throw new \Exception('诊断请求失败: ' . $response->body());
        }

        return $response->json();
    }
}

关键说明 #

• 缓存策略：提前1分钟让Token过期，避免请求过程中Token刚好失效
• 异常处理：添加基础异常抛出，可根据项目需求自定义异常类或错误处理逻辑
• 依赖注入：利用Laravel容器自动解析依赖，无需手动实例化类

内容的提问来源于stack exchange，提问作者tukitooo1998