Zoom APIとLaravelを使って自動ミーティング作成フォームを構築する。

APP_NAME=Laravel
APP_ENV=local
...
MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"

ZOOM_CLIENT_ID=clientid
ZOOM_CLIENT_SECRET=clientsecret

php artisan config:clear
php artisan cache:clear

public function up()
{
    Schema::create('users', function (Blueprint $table) {
        $table->bigIncrements('id');
        $table->string('name');
        $table->string('email')->unique();
        $table->timestamp('email_verified_at')->nullable();
        $table->string('password');
    
        //ここから追加
        $table->longText('zoom_code')->nullable()->default(null);
        $table->longText('access_token')->nullable()->default(null);
        $table->longText('refresh_token')->nullable()->default(null);
        $table->timestamp('zoom_expires_in', 0)->nullable()->default(null);
        $table->rememberToken();
        $table->timestamps();
    });
}

php artisan migrate --seed
Migrating: 2014_10_12_000000_create_users_table
Migrated:  2014_10_12_000000_create_users_table (0.02 seconds)
Migrating: 2014_10_12_100000_create_password_resets_table
Migrated:  2014_10_12_100000_create_password_resets_table (0.01 seconds)
Migrating: 2019_08_19_000000_create_failed_jobs_table
Migrated:  2019_08_19_000000_create_failed_jobs_table (0.01 seconds)
Seeding: UsersTableSeeder
Seeded:  UsersTableSeeder (0.06 seconds)
Database seeding completed successfully.

/                   フォームを表示  
/confirm            フォームの受付完了確認画面
/admin              管理者用ページ
/login              ログインページ
/logout             ログアウトルート
/zoomoatuh/check    zoom OAuthリダイレクト先
/form/alter         ミーティングの時間変更画面
/form/delete        ミーティングのキャンセル画面

public function index(Request $request){
    $user = auth()->user();
    $noZoomCode = $user->zoom_code == null; //連携を行っているか
    $zoomOuthLink = 'https://zoom.us/oauth/authorize?'.http_build_query([
        'response_type'=>'code',
        'redirect_uri'=>env('APP_URL').'/zoomoatuh/check',
        'client_id'=>env('ZOOM_CLIENT_ID'),
    ]);
    $oauthSuccess=false;
    $meetings = Meeting::all();

    return view('admin',compact('noZoomCode','zoomOuthLink','oauthSuccess','meetings'));
}

@extends('layouts.layout')

@section('main-content')
    <div class="main-content">
        @if($noZoomCode)
        <div class="alert alert-danger mb-3" role="alert">
            <h4 class="alert-heading">Zoomとの連携が行われていません。</h4>
            <p>このシステムをご利用する場合、Zoomとの連携を行ってください。</p>
            <a href="{{$zoomOuthLink}}" class="btn btn-danger">Zoomと連携</a>
        </div>
        @else
        <h1>予約一覧</h1>
        @endif
    </div>
@endsection

$zoomOuthLink = 'https://zoom.us/oauth/authorize?'.http_build_query([
    'response_type'=>'code',
    'redirect_uri'=>env('APP_URL').'/zoomoatuh/check',
    'client_id'=>env('ZOOM_CLIENT_ID'),
]);

https://zoom.us/oauth/authorize?response_type=code&redirect_uri=http://localhost:9000/zoomauth/check&client_id=clientid

public function zoomOauth(Request $request){
    $user = auth()->user();

    if($user->zoom_code==null){
        $code = $request['code'];

        $user->zoom_code = $code;
        $user->save();

        $basic = base64_encode(env('ZOOM_CLIENT_ID').':'.env('ZOOM_CLIENT_SECRET'));
        $client = new \GuzzleHttp\Client([
            'headers' => ['Authorization' => 'Basic '.$basic]
        ]);
        $res = $client->request('POST','https://zoom.us/oauth/token',[
            'query' => [
                'grant_type'=>'authorization_code',
                'code'=>$code,
                'redirect_uri'=>'http://localhost:9000/zoomoatuh/check'
            ]
        ]);
        $result = json_decode($res->getBody()->getContents());

        $user->access_token= $result->access_token;
        $user->refresh_token= $result->refresh_token;
        $unixTime = time();
        $user->zoom_expires_in= date("Y-m-d H:i:s",$unixTime+$result->expires_in);
        $user->save();

        return redirect()->route('amdin')->with([
            'noZoomCode'=>false,
            'oauthSuccess'=>true
        ]);
    }
}

$basic = base64_encode(env('ZOOM_CLIENT_ID').':'.env('ZOOM_CLIENT_SECRET'));
$client = new \GuzzleHttp\Client([
    'headers' => ['Authorization' => 'Basic '.$basic]
]);
$res = $client->request('POST','https://zoom.us/oauth/token',[
    'query' => [
        'grant_type'=>'authorization_code',
        'code'=>$code,
        'redirect_uri'=>'http://localhost:9000/zoomoatuh/check'
    ]
]);

client_id:cilent_secret //これで一行の文字列
↓
この値を64base encode
↓
si84nf7435934jdfsdfi... //エンコード化された文字。これを送る

$res = $client->request('POST','https://zoom.us/oauth/token',[
    'query' => [
        'grant_type'=>'authorization_code',
        'code'=>$code,
        'redirect_uri'=>'http://localhost:9000/zoomoatuh/check'
    ]
])

https://zoom.us/oauth/token?grant_type=authorization_code&code=~~~~~&redirect_uri=http://localhost:9000/zoomoatuh/check
（そして直接は見えないですが、リクエストヘッダーには 「Authorization: Basic si84nf7435934jdfsdfi…」 という値がついています！

/*
$resultの中身の例
{
    "access_token": "eyJhbGciOiJIUz...",
    "token_type": "bearer",
    "refresh_token": "eyJhbGciOiJI..",
    "expires_in": 3599,
    "scope": "user:read"
}
*/

$result = json_decode($res->getBody()->getContents());

$user->access_token= $result->access_token;
$user->refresh_token= $result->refresh_token;
$unixTime = time();
$user->zoom_expires_in= date("Y-m-d H:i:s",$unixTime+$result->expires_in);
$user->save();

return redirect()->route('amdin')->with([
         'noZoomCode'=>false,
         'oauthSuccess'=>true
]);

class ZoomApiController extends Controller
{
    //
    protected function me(){
        $user = auth()->user();
        $client = new \GuzzleHttp\Client([
            'headers' => ['Authorization' => 'Bearer '.$user->access_token]
        ]);
        $res = $client->request('GET','https://api.zoom.us/v2/users/me');
        $result = json_decode($res->getBody()->getContents());
        // dd($result);
        return $result;
    }
...
}

protected function checkRefresh(){
    $user = auth()->user();
    $token_expires =  new \DateTime($user->zoom_expires_in);
    $now = new \DateTime();

    if($now >= $token_expires){
        $basic = base64_encode(env('ZOOM_CLIENT_ID').':'.env('ZOOM_CLIENT_SECRET'));
        $client = new \GuzzleHttp\Client([
            'headers' => ['Authorization' => 'Basic '.$basic]
        ]);
        $res = $client->request('POST','https://zoom.us/oauth/token',[
            'query' => [
                'grant_type'=>'refresh_token',
                'refresh_token'=>$user->refresh_token
            ]
        ]);
        $result = json_decode($res->getBody()->getContents());

        $user->access_token= $result->access_token;
        $user->refresh_token= $result->access_token;
        $unixTime = time();
        $user->zoom_expires_in= date("Y-m-d H:i:s",$unixTime+$result->expires_in);
        $user->save();
        return $user;
    }
    return $user;
}

<?php

use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
use Illuminate\Support\Facades\DB;

class CreateMeeting extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('meeting', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->string('name');
            $table->string('company_name');
            $table->string('email');
            $table->longText('content');

            $table->timestamp('start_at', 0)->default(DB::raw('CURRENT_TIMESTAMP'));
            $table->longText('hash');
            $table->boolean('is_canceled');

            $table->longText('zoom_meeting_id');
            $table->longText('zoom_join_url');
            $table->longText('zoom_start_url');
            $table->longText('zoom_password');
            $table->timestamps();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('meeting');
    }
}

public function createMeeting(Request $request){
    $validator = Validator::make($request->all(),[
        'email'=>'required|email:rfc',
        'yourname'=>'required',
        'companyname'=>'required',
        'startAt'=>'date|required',
        'content'=>'required|max:1000',
    ]);

    $error = $validator->getMessageBag()->toArray();
    
    //バリデーションエラーがあれば元の画面へ
    if ($validator->fails()) {
        return view('form',compact('error'));
    }
    
    $user = $this->checkRefresh();
    $user = auth()->user();

    $zoom_user = $this->me();

    $url = 'https://api.zoom.us/v2/users/'.$zoom_user->id.'/meetings';
    $client = new \GuzzleHttp\Client([
        'headers' => [
            'Authorization' => 'Bearer '.$user->access_token,
            'Content-Type'=>'application/json'
        ],
    ]);

    $topic = $request->companyname.' '.$request->yourname.'様 ご相談';
    $meeting_password = substr(base_convert(bin2hex(openssl_random_pseudo_bytes(9)),16,36),0,9);
    $res = $client->request('POST',$url,[
        \GuzzleHttp\RequestOptions::JSON => [
            'topic'=>$topic,
            'type'=>2,
            'start_time'=>$request->startAt,
            'password'=>$meeting_password
        ]
    ]);
    $result = json_decode($res->getBody()->getContents());

    $meeting = new Meeting();
    $meeting->name=$request->yourname;
    $meeting->company_name=$request->companyname;
    $meeting->email=$request->email;
    $meeting->content=$request->content;

    $start = new \DateTime($result->start_time);
    $meeting->start_at=$start;
    $meeting->hash=substr(base_convert(bin2hex(openssl_random_pseudo_bytes(64)),16,36),0,64);
    $meeting->is_canceled=false;

    $meeting->zoom_meeting_id=$result->id;
    $meeting->zoom_join_url=$result->join_url;
    $meeting->zoom_start_url=$result->start_url;
    $meeting->zoom_password=$result->password;
    $meeting->save();

    $format = $start->format('Y年m月d日 H時i分');
    // $meeting->start_at = $format;
    // $mail = new ContactMail($meeting);
    // Mail::to($request->email)->send($mail);


    return redirect('/confirm')->with([
        'form_id'=>$meeting->id,
        'name'=>$request->yourname,
        'companyname'=>$request->companyname,
        'content'=>$request->content,
        'start_time'=>$format
    ]);
}

$user = $this->checkRefresh();
$user = auth()->user();

$zoom_user = $this->me();

$url = 'https://api.zoom.us/v2/users/'.$zoom_user->id.'/meetings';
$client = new \GuzzleHttp\Client([
    'headers' => [
        'Authorization' => 'Bearer '.$user->access_token,
        'Content-Type'=>'application/json'
    ],
]);

$topic = $request->companyname.' '.$request->yourname.'様 ご相談';        
$meeting_password = substr(base_convert(bin2hex(openssl_random_pseudo_bytes(9)),16,36),0,9);
$res = $client->request('POST',$url,[
    \GuzzleHttp\RequestOptions::JSON => [
        'topic'=>$topic,
        'type'=>2,
        'start_time'=>$request->startAt,
        'password'=>$meeting_password
    ]
]);
$result = json_decode($res->getBody()->getContents());

$result = json_decode($res->getBody()->getContents());

$meeting = new Meeting();
$meeting->name=$request->yourname;
$meeting->company_name=$request->companyname;
$meeting->email=$request->email;
$meeting->content=$request->content;

$start = new \DateTime($result->start_time);
$meeting->start_at=$start;
$meeting->hash=substr(base_convert(bin2hex(openssl_random_pseudo_bytes(64)),16,36),0,64);
$meeting->is_canceled=false;

$meeting->zoom_meeting_id=$result->id;
$meeting->zoom_join_url=$result->join_url;
$meeting->zoom_start_url=$result->start_url;
$meeting->zoom_password=$result->password;
$meeting->save();

$format = $start->format('Y年m月d日 H時i分');
// $meeting->start_at = $format;
// $mail = new ContactMail($meeting);
// Mail::to($request->email)->send($mail);


return redirect('/confirm')->with([
    'form_id'=>$meeting->id,
    'name'=>$request->yourname,
    'companyname'=>$request->companyname,
    'content'=>$request->content,
    'start_time'=>$format
]);