fedapay-cli/lib/helpers/tail-util.js

A command-line tool for FedaPay

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
var amqp = require('amqplib/callback_api');
const chalk_1 = tslib_1.__importDefault(require("chalk"));
/**
 * Class TailUtil
 */
class TailUtil {
    constructor(url, options) {
        this.url = url;
        this.options = options;
    }
    connect(filters = {}, keys = [], cb) {
        amqp.connect(this.url, (error0, connection) => {
            if (error0) {
                throw error0;
            }
            connection.createChannel((error1, channel) => {
                if (error1) {
                    throw error1;
                }
                channel.assertQueue(this.options.queue, {
                    nowait: this.options.nowait,
                    durable: this.options.durable,
                    autoDelete: this.options.auto_delete,
                    arguments: {
                        'x-message-ttl': this.options.arguments['x-message-ttl'],
                        'x-expires': this.options.arguments['x-expires'],
                        'x-single-active-consumer': this.options.arguments['x-single-active-consumer']
                    }
                }, (error2) => {
                    if (error2) {
                        throw error2;
                    }
                    channel.consume(this.options.queue, (msg) => {
                        if (msg.content) {
                            const output = this.filterOutput(msg.content.toString(), filters, keys);
                            if (output) {
                                cb(output);
                            }
                        }
                    }, {
                        noAck: true
                    });
                });
            });
        });
    }
    /**
     * Filter json output
     * @param {string} json
     * @param {any} filters
     * @return {string|null}
     */
    filterOutput(json, filters, keys = []) {
        try {
            const data = JSON.parse(json);
            for (const filter in filters) {
                if (!data[filter] || data[filter] !== filters[filter]) {
                    return null;
                }
            }
            return this.formatJsonOutput(data, keys);
        }
        catch (e) {
            return null;
        }
    }
    /**
     * Format queue messange json
     * @param {string} json
     * @return {string}
     */
    formatJsonOutput(json, keys = []) {
        const date = (new Date()).toLocaleString();
        let log = chalk_1.default.bold.gray(date) + ' ----> : ';
        for (const key in json) {
            if (keys.length > 0 && !keys.includes(key)) {
                continue;
            }
            let value = json[key];
            if (typeof value !== 'string') {
                value = JSON.stringify(value);
            }
            log += chalk_1.default.bold.blue(`${key}: `) + `${value} `;
        }
        return log;
    }
}
exports.default = TailUtil;