ffc-pay-etl-framework/dist/esm/validators/multiToolValidator.js

A framework for creating ETL pipelines in node

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
// @ts-nocheck
const { Transform } = require("stream");
const validator = require('validator');
/**
 *
 * @param {Object} options
 * @param {Array} options.columns { columns: [
 *   {
 *       name: "column-name",
 *       validator: "isAlphanumeric",
 *       args: {
 *               locale: "en-GB",
 *               options: {
 *                   ignore: "-;%/ "
 *               }
 *       }
 *   }
 *  ]
 * }
 * @returns Writable
 */
function MultiToolValidator(options) {
    function getValidator(validatorType) {
        return validator[validatorType];
    }
    return new Transform({
        readableObjectMode: true,
        writableObjectMode: true,
        decodeStrings: false,
        construct(callback) {
            this.columns = options.columns;
            callback();
        },
        transform(chunk, _, callback) {
            const { _columns } = chunk;
            this.columns.forEach(column => {
                const colIndex = _columns.indexOf(column.name);
                const vtr = getValidator(column.validator);
                if (!vtr(chunk[colIndex], ...Object.values(column.args)))
                    chunk.errors.push(`${column.validator} returned invalid status in column ${colIndex}`);
            });
            callback(null, chunk);
        }
    });
}
module.exports = {
    MultiToolValidator
};