如何验证电子邮件是否已经使用流明？

Question

I am new to Lumen (Laravel). I want to validate if email is already taken by following the Lumen documentation .

$this->validate($request, [
        'email' => 'required|unique:borrower|max:255',
        //'mobile' => 'required|unique:borrower|max:255'

    ]);

If I execute the following line in postman, it shows like 422 unprocessed entity.

How can I check if email is already taken through Lumen and show the error message in view? Thanks for all the help!

Answer 1

For Inserting new entry

function validateUser($request){
    $validator = Validator::make($request->all(), [
        'email' => 'bail|required|email|unique:borrower,email',
    ]);
    return $validator;
}

For Updating

function validateUser($request){
    $validator = Validator::make($request->all(), [
        'email' => 'bail|required|email|unique:borrower,email,'.$request->id.',id',
    ]);
    return $validator;
}

Combining both

function validateUser($request){
    $id = isset($request->id) ? ','.$request->id.',id':'';
    $validator = Validator::make($request->all(), [
        'first_name' => 'required',
        'email' => 'bail|required|email|unique:borrower,email'.$id,
    ]);
    return $validator;
}

After that you can pass $validator to display all error.

Bail : bail checks first condition, if fails it will not check for email valiation or unique checks.