Day21 laravel 製作使用者登入api 註冊篇

上次我介紹了登入功能，這次我想介紹如何註冊使用者。註冊要注意的地方在於使用者輸入的帳號密碼格式，格式端看你要定的多嚴謹。laravel有很簡單的驗證格式功能Validation，這東西我會再另出一篇文章講解。

Controller內容

以下是我Todolist專案的原始碼：

public function register(Request $request)
    {
        $username = $request->username;
        $password = $request->password;
        $email = $request->email;
        # validation check username and password formt
        $rules = [
            'username' => 'required|max:16|alpha_dash',
            'password' => 'required|regex:/[0-9a-zA-Z]{8}/',
            'email' => 'required|email',
        ];
        $messages = [
            'username.required' => 'username can not null. ',
            'username.max' => 'username can not over 16 characters. ',
            'username.alpha_dash' => 'username only have alpha-numeric characters, as well as dashes and underscores . ',
            'password.regex' => 'password should over 8 characters and only 0-9,a-z,A-Z. ',
            'password.required' => 'password should over 8 characters and only 0-9,a-z,A-Z. ',
            'email.email' => 'The email must be a valid email address. ',
        ];
        $validator = Validator::make($request->all(), $rules, $messages);
        if ($validator->fails()) {
            $error = $validator->errors()->first();
            return response()->json(['status' => false, 'error' => $error], 400);
        }

        #尋找是否有相同帳號名
        $User = Users::where('username', $username)->first();
        if (isset($User)) {
            return response()->json(['status' => false, 'error' => 'This account already exists'], 400);
        }
        #尋找是否有相同email
        $SameEmail = Users::where('email', $email)->first();
        if (isset($SameEmail)) {
            return response()->json(['status' => false, 'error' => 'This email already exists'], 400);
        }

        #密碼加密後加入資料庫
        $hash = password_hash($password, PASSWORD_DEFAULT);
        $User = Users::create([
            'username' => $username, 'password' => $hash,
            'remember_token' => 'new user',
            'email' => $email,
        ]);
        return response()->json(['status' => true], 201);
    }

看起來好像很長，不過6~24行是Validation驗證的部份，可以先跳過，明天我會再出文章講解。

說明：

• 3~5
  取出request中的email,username,password
• 6~24
  Validation驗證email,username,password，下篇文章中會詳細解釋。
• 27~30
  尋找是否有相同的username，有的話回傳錯誤400
• 32~35
  尋找是否有相同的email，有的話回傳錯誤400
• 38
  將密碼加密
• 39~44
  新增user資料，回傳成功200

今天就講到這邊，這次的code看起來雖長，Validation驗證佔一半，驗證後就是簡單的新增user資料而已。明天將會介紹Validation功能，下次見。