config-service/app/Http/Controllers/PosterController.php

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2019/6/20
 * Time: 16:34
 */
namespace App\Http\Controllers;

use App\Repositories\PosterRepository;
use App\Traits\UserTrait;
use Illuminate\Support\Facades\Validator;
use Illuminate\Http\Request;
use Intervention\Image\ImageManagerStatic;

class PosterController extends Controller
{
    use UserTrait;
    public function __construct()
    {
    }

    public function post(Request $request)
    {
//        return ImageManagerStatic::make(public_path('/image/post/main.png'))->reponse('png');
        $validator = Validator::make($request->all(), [
            'id' => 'required|integer',
        ]);
        if ($validator->fails()) {
            return jsonError($validator->errors()->first());
        }

        $userInfo = $this->getUserInfo();
        if(!$userInfo){
            return jsonError('获取用户信息失败');
        }

        // 合成基本图
        $main = public_path('/image/post/main.png');
        $imageRepository = new PosterRepository($main);

        $url = $imageRepository->post($userInfo, $request['id']);
        return $url;
    }
}