Introduction

This lib use for validate javascript form data object send to API before we using this data. Reuse any type of data we defined.

Example

var thieny = require('form-validation-thieny');

let data = {
  email: '[email protected]',
  new_email: '[email protected]'
};

let result = thieny.required('email') // could be array ['email']
                    .optional('new_email', 'old_email') // could be array ['new_email', 'old_email']
                    .validate(data);

console.log(result);
// success
// {
//   error: null,
//   value: {
//     email: '[email protected]',
//     new_email: '[email protected]'
//   }
// }

// any error
// {
//   error: {
//     code: 1,
//     msg: 'Invalid email'
//   },
//   value: {}
// }

Try Online Demo

Before do validate, just defined object type and put them when your app start (run first)

// add new type defined email type and error that you want to response
thieny.add_type({
  type_name: 'email',
  error_data: {
    code: 1,
    msg: 'Invalid email'
  },
  validate: str => {
    if (str) {
      return {
        value: str
      };
    } else {
      return {
        error: true
      }
    }
  },
  field_names: [{
    name: 'new_email'
  }, {
    name: 'old_email',
    error_data: {
      code: 4,
      msg: 'Invalid old email'
    }
  }]
});

Usage

add_type

Add new type

• type_name String name of type
• error_data Any error object return when invalid data.
• validate Function function validate data: Can be yourself function or using @hapi/joi module

Your function

validate: str => {
  // your validate function here
  if (str) {
    return {
      value: str
    };
  } else {
    return {
      error: true
    }
  }
}

Using @hapi/joi Reference API Reference.

validate: str => {
  // using @hapi/joi
  return thieny.joi.string().trim().replace(/[^0-9]/g, '').length(10).validate(str);
}

Return an object

• error Boolean optional true/false
• value Any value of input after validate
• field_names Array optional list of fields had the same type
  • name
  • error_data optional error object return when invalid data

required

List of field (arg or array) are required in input data

optional

List of field (arg or array) are optional in input data

validate

Validate an object data Return an object

• error Any error_data which you defined before in add_type
• value Object An object was return if no error after validate.