Validate doesn't return a default error message

[pensierinmusica]

Hi,

The docs say that:

validate: (Function) Receive the user input and answers hash. Should return true if the value is valid, and an error message (String) otherwise. If false is returned, a default error message is provided.

But when my validate function returns false, no default error message is shown on screen.

If the validate function returns a string instead, the custom error message is shown correctly.

[SBoudrias]

Hey @pensierinmusica, which prompt are you using when this happens?

[pensierinmusica]

Good question! I don't remember, sorry this was a few weeks ago and there's no commit that reproduces the issue. Maybe someone can quickly iterate through the different prompt types and test if they show inconsistent behaviors?

[bernicecpz]

Hi,

I also faced this issue where no default error message is shown on the console.

In my case, I am using the type: input, whereby I prompt the user to enter a URL.

When the validate function return false, the interactive command line would look seemingly stuck due to no default error message is shown. The gif below shows that when I enter an invalid URL https://www.sitemaps.or (Sorry it's not so obvious! I waited for 3 seconds), there is no default error message. Upon entering a valid URL, my app is able to continue to use Apify to go through the pages.

Here's my code snippet for the prompt

{
    type: 'input',
    name: 'url',
    message: answers => {
      if (answers.isLogin) {
        answers.scanner = scannerTypes.login;
      }

      return getUrlMessage(answers.scanner);
    },
    async validate(url, answers) {
      const checkIfExit = url.toLowerCase();

      if (checkIfExit === 'exit') {
        process.exit(1);
      }

      const res = await checkUrl(answers.scanner, url);

      if (res.status === 200) {
        answers.url = res.url;
        return true;
      }

      return false;
    },
},

Do point me to some examples if any available, thank you! Appreciate your help and time!