使用 Laravel 5.6 api 验证 JSON Post答案

【问题标题】：Validation of JSON Post using Laravel 5.6 api使用 Laravel 5.6 api 验证 JSON Post
【发布时间】：2018-11-13 09:29:04
【问题描述】：

在为 Laravel 5.6 上的 api 验证 JSON 输入时遇到了困难。我一直在尝试解决方案How to get and validate application/json data in Laravel? 但仍然没有解决。

支持类：

<?php
namespace App\Http\Controllers\API;

class ResponseObject
{
    const status_ok = "OK";
    const status_fail = "FAIL";
    const code_ok = 200;
    const code_failed = 400;
    const code_unauthorized = 403;
    const code_not_found = 404;
    const code_error = 500;

    public $status;
    public $code;
    public $messages = array();
    public $result = array();
}

和控制器：

namespace App\Http\Controllers\API;

use App\Http\Resources\MyItemsResource;
use App\MyItem;
use Illuminate\Http\Request;
use App\Http\Controllers\Controller;
use \Illuminate\Http\Response;
use \Illuminate\Support\Facades\Response as FacadeResponse;
use \Illuminate\Support\Facades\Validator;
use App\Http\Controllers\API\ResponseObject;



class MyItemsController extends Controller
{
    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function store(Request $request)
    {
        $response = new ResponseObject;

        /*
        sending a body of
        {"code": "45678", "description": "My great item"}

        then:
        // print_r($request->json()->all()); die();

        produces:
            Array
            (
                [code] => 45678
                [description] => My great item
            )
         so data is getting to server
        */

        $validator = Validator::make($request->json()->all(), [
            'code', 'required',
            'description', 'required',
        ]);

        if($validator->fails()){
            $response->status = $response::status_failed;
            $response->code = $response::code_failed;
            foreach ($validator->errors()->getMessages() as $item) {
                array_push($response->messages, $item);
            }
        } else {
            $myItem = new MyItem();
            $myItem->code = $request->code;
            $myItem->description = $request->description;
            $response->status = $response::status_ok;
            $response->code = $response::code_ok;
            $response->result = $myItem;
        }

        return FacadeResponse::json($response);
        /*
         Returns:
        {
            "status": "FAILED",
            "code": 400,
            "messages": [
                [
                    "The 1 field is required."
                ],
                [
                    "The 3 field is required."
                ]
            ],
            "result": []
         }
         */
    }
}

为什么将字段称为1字段和3字段？我错过了什么，当它们到达 $request 中的控制器时它没有拾取字段？

任何指导将不胜感激。

【问题讨论】：

标签： php laravel laravel-5.6

【解决方案1】：

它是指验证规则的键。

这里你只有一个 4 个单词的数组（索引 1 和 3 是失败的有效规则）：

$validator = Validator::make($request->json()->all(), [
    'code', 'required',
    'description', 'required',
]);

^ 这等于：

$validator = Validator::make($request->json()->all(), [
    0 => 'code', 
    1 => 'required',
    2 => 'description', 
    3 => 'required',
]);

并查找输入 0、1、2、3。

你应该创建一个关联数组：

$validator = Validator::make($request->json()->all(), [
    'code' => 'required',
    'description' => 'required',
]);

^ 这将查找输入 code 和 description 并使用规则 required 验证它们

【讨论】：

哦，我注意到的另一件事，你需要做$request->all()，而不是$request->json()->all()
谢谢你。