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How to use the isURL function from validator

Find comprehensive JavaScript validator.isURL code examples handpicked from public code repositorys.

validator.isURL is a function that checks if a given string is a valid URL.

app.js

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function process_form(input) {
  // check whether the input is a valid URL
  var url = sanitize_url(input)
  .then(function(url) {

    var isURL    = validator.isURL(url, {
      protocols: ['http','https'],
      allow_underscores: true
    });

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+ 3 other calls in file

app.js

GitHub: chentsulin/startLearningNodejs

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console.log('foo@bar.com\n', 'isEmail', validator.isEmail('foo@bar.com'));
console.log('https://github.com/chriso/validator.js\n', 'isEmail', validator.isEmail('https://github.com/chriso/validator.js'));


console.log('foo@bar.com\n', 'isURL', validator.isURL('foo@bar.com'));
console.log('https://github.com/chriso/validator.js\n', 'isURL', validator.isURL('https://github.com/chriso/validator.js'));


console.log('127.0.0.1\n', 'isIP', validator.isIP('127.0.0.1'));
console.log('2001:DB8:2de:0:0:0:0:e13\n', 'isIP', validator.isIP('2001:DB8:2de:0:0:0:0:e13'));

+ 3 other calls in file

How does validator.isURL work?

validator.isURL is a function that checks whether a given string is a valid URL according to a set of rules defined by the function. It checks the protocol, username, password, hostname, port, pathname, search, and hash components of the URL string to ensure that they meet the requirements of a valid URL.

index.js

GitHub: ladjs/mandarin

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// lookup translation result from cache
const key = `${locale}:${revHash(phrase)}`;
let translation;

// do not translate if it is an email, FQDN, URL, or IP
if (isEmail(phrase) || isFQDN(phrase) || isURL(phrase) || isIP(phrase))
  translation = phrase;
else if (this.redisClient)
  translation = await this.redisClient.get(key);
debug('translation', translation);

nconf-validator.js

GitHub: mihirgokani007/nconf-validator

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},
fqdn: function(x) {
  check(x, "a domain name", validator.isFQDN(x));
},
url: function(x) {
  check(x, "a URL", validator.isURL(x));
},
email: function(x) {
  check(x, "an email address", validator.isEmail(x));
},

Ai Example

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const validator = require("validator");

const url = "https://example.com";
const isValidURL = validator.isURL(url);

console.log(isValidURL); // Output: true

In this example, we first import the validator module. We then define a string url that we want to validate as a URL. We call the validator.isURL() method and pass the url variable as an argument. This method returns a boolean value indicating whether the url is a valid URL or not. In this case, it will return true since https://example.com is a valid URL.

index.js

GitHub: justinsisley/marshall

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case 'nat':
  isValid = validator.isInt(stringValue, { min: 0 });
  break;

case 'url':
  isValid = validator.isURL(stringValue, { require_protocol: true });
  break;

case 'alpha':
  isValid = validator.isAlpha(stringValue);

+ 31 other calls in file

utils.ts

GitHub: open-wa/utils-nodejs

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   */
export const isDataURL = (s: string) => !!s.match(/^data:((?:\w+\/(?:(?!;).)+)?)((?:;[\w\W]*?[^;])*),(.+)$/g);

export const isBase64 = (s: string) => /^([0-9a-zA-Z+/]{4})*(([0-9a-zA-Z+/]{2}==)|([0-9a-zA-Z+/]{3}=))?$/.test(s)

export const isUrl = (s: string) => validator.isURL(s)

export const bufferToDataURI = async (buff: Buffer) => {
  const {mime} = await FileType.fromBuffer(buff)
  return `data:${mime};base64,${buff.toString('base64')}`

rules.js

GitHub: Shyp/anchor

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'alphadashed': function (x) {return (/^[a-zA-Z-_]*$/).test(x); },
'numeric'       : validator.isNumeric,
'alphanumeric': validator.isAlphanumeric,
'alphanumericdashed': function (x) {return (/^[a-zA-Z0-9-_]*$/).test(x); },
'email'         : validator.isEmail,
'url'           : function(x, opt) { return validator.isURL(x, opt === true ? undefined : opt); },
'urlish'        : /^\s([^\/]+\.)+.+\s*$/g,
'ip'                    : validator.isIP,
'ipv4'          : validator.isIPv4,
'ipv6'          : validator.isIPv6,

express-validator2.js

GitHub: yinhaixiang/express-validator2

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  }
  return true;
},
isURL: function(rule, value) {
  if (rule) {
    return validator.isURL(value);
  }
  return true;
},
isFQDN: function(rule, value) {

+ 5 other calls in file

validators.js

GitHub: mmerkes/express-route-validator

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// isURL(str [, options]) - check if the string is an URL. options is an object
// which defaults to { protocols: ['http','https','ftp'], require_tld: true,
// require_protocol: false, allow_underscores: false, host_whitelist: false,
// host_blacklist: false, allow_trailing_dot: false, allow_protocol_relative_urls: false }.
isURL: function (str, options) {
  return validator.isURL(str, typeof options === 'object' ? options : undefined);
},
// isUUID(str [, version]) - check if the string is a UUID (version 3, 4 or 5).
isUUID: function (str, version) {
  return validator.isUUID(str, typeof version !== 'boolean' ? version : undefined);

+ 17 other calls in file

ZSchema-browser.js

GitHub: BTWhite/z-schema

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        // https://github.com/zaggino/z-schema/issues/18
        // RegExp from http://tools.ietf.org/html/rfc3986#appendix-B
        return typeof uri !== "string" || RegExp("^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?").test(uri);
    },
    "strict-uri": function (uri) {
        return typeof uri !== "string" || validator.isURL(uri);
    }
};


module.exports = FormatValidators;

spell.js

GitHub: netbek/lichen

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if (
  (ignoreCurrency && validator.isCurrency(word)) ||
  (ignoreEmail && validator.isEmail(word)) ||
  (ignoreFqdn && validator.isFQDN(word)) ||
  (ignoreUrl && validator.isURL(word)) ||
  (ignoreUnits && unitFilter.test(word))
) {
  parent.children[index] = {
    type: 'SourceNode',

index.js

GitHub: everscale-contest/devex

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    }
}


function validateCallbackURL(url) {
    try {
        return isURL(url, {
            protocols: ['http', 'https'],
            require_tld: false,
            require_protocol: true,
            require_host: true,

UserModel.js

GitHub: nahid7g/the-six-server

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  required: true,
  default:
    'http://1.gravatar.com/avatar/1ec59eae354306975b17d78e8473d78b?s=90&d=mm&r=g',
  validate: {
    validator: function (value) {
      return validator.isURL(value)
    },
    message: 'Image not found',
  },
},

movie.js

GitHub: DmitriyBelozerov/movies-explorer-api

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},
image: {
  type: String,
  required: true,
  validate: {
    validator: (v) => validator.isURL(v),
  },
},
trailerLink: {
  type: String,

+ 2 other calls in file

index.js

GitHub: dbuelvasc/reporte_incidencias_pa

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validator.extend('isTimezone', function isTimezone(str) {
    return moment.tz.zone(str) ? true : false;
});


validator.extend('isEmptyOrURL', function isEmptyOrURL(str) {
    return (_.isEmpty(str) || validator.isURL(str, {require_protocol: false}));
});


validator.extend('isSlug', function isSlug(str) {
    return validator.matches(str, /^[a-z0-9\-_]+$/);

+ 2 other calls in file

card.js

GitHub: AleksandraMahaeva/express-mesto-gha

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},
link: {
  type: String,
  required: true,
  validate: {
    validator: (link) => validator.isURL(link),
    message: 'Введите корректный URL',
  },
},
owner: {

Validation.js

GitHub: SajjadReactDeveloper/Shaadi-Meetup

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    return validator.isDate(date);
}


// Validate URL
exports.validateURL = (url) => {
    return validator.isURL(url);
}


// Validate IP address

users.validate.js

GitHub: ade1256/kodepos-api-json

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  .isEmpty()
  .withMessage('IS_EMPTY')
  .trim(),
check('urlTwitter')
  .optional()
  .custom(v => (v === '' ? true : validator.isURL(v)))
  .withMessage('NOT_A_VALID_URL'),
check('urlGitHub')
  .optional()
  .custom(v => (v === '' ? true : validator.isURL(v)))

+ 3 other calls in file

user.js

GitHub: DavidBworld/DavidBoilon_7_03122020

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}
if (req.body.role) {
    isRole = validator.matches(String(role), regExText);
}
if (req.body.linkedin_url) {
    isLinkedinUrl = validator.isURL(String(linkedin_url), [["http", "https"]]);
}

if (isFirstName && isLastName && isEmail && isDepartment && isRole && isLinkedinUrl) {
    const string =

validator-sanitizer.js

GitHub: mk2s6/fms_be

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function ifExistsIsUrl(location, fieldName, message) {
  const validator = getFunctionName(location);
  return validator(fieldName)
    .custom((paramFieldName) => {
      if (hf.isEmptyValue(paramFieldName)) return true;
      return validatorLibrary.isURL(paramFieldName);
    })
    .withMessage(message);
}
/**

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