Validation for latitude with AdonisJS/Indicative (Extending Validator)

gistfile1.txt

In your start/app.js you need to register your provider inside providers, eg:

const path = require('path');
/*
|--------------------------------------------------------------------------
| Providers
|--------------------------------------------------------------------------
|
| Providers are building blocks for your Adonis app. Anytime you install
| a new Adonis specific package, chances are you will register the
| provider here.
|
*/
const providers = [
  path.join(__dirname, '..', 'providers', 'LatitudeProvider'),
]

providers is the directory where you have all of your providers, and 'LatitudeProvider' is the name of your file.

LatitudeProvider.js

const { ServiceProvider } = require('@adonisjs/fold')

class LatitudeProvider extends ServiceProvider {

  async lat(data, field, message, args, get){
    const value = get(data, field);

    if (!value) {
      return
    }

    let latitude = value.toString();
    let result = latitude.match(/^-?([1-8]?[0-9]\.{1}\d{1,6}$|90\.{1}0{1,6}$)/);

    if (!result) {
      throw message
    }
  };

  /**
   * Attach context getter when all providers have
   * been registered
   *
   * @method boot
   *
   * @return {void}
   */
  boot () {
    const Validator = use('Validator');
    Validator.extend('latitude', this.lat.bind(this), 'error in latitude validation');
    //
  }
}

module.exports = LatitudeProvider;

LongitudeProvider.js

const { ServiceProvider } = require('@adonisjs/fold')

class LongitudeProvider extends ServiceProvider {

  async long(data, field, message, args, get){
    const value = get(data, field);

    if (!value) {
      return
    }

    let longitude = value.toString();
    let result = longitude.match(/^[-]?((((1[0-7][0-9])|([0-9]?[0-9]))\.(\d+))|180(\.0+)?)$/);

    if (!result) {
      throw message
    }
  };

  /**
   * Attach context getter when all providers have
   * been registered
   *
   * @method boot
   *
   * @return {void}
   */
  boot () {
    const Validator = use('Validator');
    Validator.extend('longitude', this.long.bind(this), 'error in longitude validation');
    //
  }
}

module.exports = LongitudeProvider;