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    /// <summary>
    /// Map a resource "keyType" to polymorphic classes.
    /// </summary>
    /// <remarks>
    /// Followed example here:
    /// http://pastebin.com/9UweEKBe
    /// </remarks>
    public class CustomFieldDiscriminatorConvention : IDiscriminatorConvention
    {
        private readonly string elementName;

aeleftheriadis

using System;
using System.Linq;
using MongoDB.Bson;
using MongoDB.Driver;
using MongoDB.Bson.Serialization.Attributes;

public abstract class MongoModelBase
{
  [BsonId]
  public ObjectId Id { get; set; }

aeleftheriadis

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

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apiVersion: extensions/v1beta1
kind: PodSecurityPolicy
metadata:
  name: restricted
  annotations:
    seccomp.security.alpha.kubernetes.io/allowedProfileNames: 'docker/default'
    apparmor.security.beta.kubernetes.io/allowedProfileNames: 'runtime/default'
    seccomp.security.alpha.kubernetes.io/defaultProfileName:  'docker/default'
    apparmor.security.beta.kubernetes.io/defaultProfileName:  'runtime/default'
spec:

aeleftheriadis

# delete local tag '12345'
git tag -d 12345
# delete remote tag '12345' (eg, GitHub version too)
git push origin :refs/tags/12345
# alternative approach
git push --delete origin tagName
git tag -d tagName

aeleftheriadis

import React from 'react'
import { BackHandler } from 'react-native' // <<<<<<<<<<< ADDED THIS
import * as ReactNavigation from 'react-navigation'
import { connect } from 'react-redux'
import AppNavigation from './AppNavigation'

// Change to component to get lifecycle functions

// here is our redux-aware smart component
class ReduxNavigation extends React.Component {

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//Usage
import React from 'react';
import { BrowserRouter as Router } from 'react-router-dom';
import Route from './AuthRoute';

import Login from './Login';
import Private from './Private';

export default () => 
  <Router>

aeleftheriadis

Google Docs Viewer

Only files under 25 MB can be previewed with the Google Drive viewer.

Google Drive viewer helps you preview over 16 different file types, listed below:

• Image files (.JPEG, .PNG, .GIF, .TIFF, .BMP)
• Video files (WebM, .MPEG4, .3GPP, .MOV, .AVI, .MPEGPS, .WMV, .FLV)
• Text files (.TXT)
• Markup/Code (.CSS, .HTML, .PHP, .C, .CPP, .H, .HPP, .JS)
• Microsoft Word (.DOC and .DOCX)

aeleftheriadis

import { Component } from 'react'
import { createStore, combineReducers } from 'redux'
import parseLinkHeader from 'parse-link-header'

const START = 'start'
const SUCCEED = 'succeed'
const ERROR = 'error'

const inflight = (state={}, action) => (
  ((state) => (

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import { Component } from "React";

export var Enhance = ComposedComponent => class extends Component {
  constructor() {
    this.state = { data: null };
  }
  componentDidMount() {
    this.setState({ data: 'Hello' });
  }
  render() {