jrgcubano

using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;

namespace EventFlow.ValueObjects
{
    public abstract class ValueObject
    {

jrgcubano

// Licensed under the MIT license with <3 by GitHub

/// <summary>
/// An exponential back off strategy which starts with 1 second and then 4, 9, 16...
/// </summary>
[SuppressMessage("Microsoft.Security", "CA2104:DoNotDeclareReadOnlyMutableReferenceTypes")]
public static readonly Func<int, TimeSpan> ExponentialBackoff = n => TimeSpan.FromSeconds(Math.Pow(n, 2));

/// <summary>
/// Returns a cold observable which retries (re-subscribes to) the source observable on error up to the 

jrgcubano

// via https://stackoverflow.com/questions/26597393/cron-observable-sequence

// and cloud patterns (circuit breaker, retry, etc) 
https://github.com/myquay/Solve.Reliability.Rx

// convert cron to time https://github.com/HangfireIO/Cronos
public static IObservable<int> Cron(string cron, IScheduler scheduler)
{
    var schedule = CrontabSchedule.Parse(cron);
    return Observable.Generate(0, d => true, d => d + 1, d => d,

jrgcubano

// this snippet can be easily used in any normal c# project as well by simply removing the .Dump() methods
// and saving the output into a variable / file of your choice.
// you'll need to add BouncyCastle.Crypto nuget to use this.
// tested on 1.8.1
// OUTPUTS: CSR, Private Key, Public Key, Self-signed Certificate

using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Asn1.Cms;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Asn1.X509;

jrgcubano

Reading data before application startup in Angular 2

In this demonstration I will show you how to read data in Angular2 final release before application startup. You can use it to read configuration files like you do in other languages like Java, Python, Ruby, Php.

This is how the demonstration will load data:

a) It will read an env file named 'env.json'. This file indicates what is the current working environment. Options are: 'production' and 'development';

b) It will read a config JSON file based on what is found in env file. If env is "production", the file is 'config.production.json'. If env is "development", the file is 'config.development.json'.

jrgcubano

export class HttpService {  
    constructor(private http: Http) {}    

    public getSingle<T>(clazz: { new(): T }, url: string, headers?: {}): Promise<T> {
        return new Promise((resolve, reject) => {
            this.http.get(url, this.getHeaders(headers)).toPromise().then((response: any) => {
                let body = response.json();
                if (body) {
                    resolve(MapUtils.deserialize(clazz, body));
                } else {

jrgcubano

# EditorConfig is awesome: http://EditorConfig.org

root = true

[*]
charset = utf-8

[{package.json}]
indent_style = space
indent_size = 2

jrgcubano

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

jrgcubano

using Newtonsoft.Json;
using System;
using System.Collections.Specialized;
using System.Net;
using System.Text;

//A simple C# class to post messages to a Slack channel
//Note: This class uses the Newtonsoft Json.NET serializer available via NuGet
public class SlackClient
{

jrgcubano

class NavigableObject<T> {
    constructor(private obj: T, private path: string[] = []) { }

    To<R>(p: (x: T) => R): NavigableObject<R> {
        return new NavigableObject<R>(p(this.obj),
                       this.path.concat(this.getPropName(p)));
    }

    getPath() {
        return this.path;