Tutorial by Examples: l

Mark invalid tokens, store until their expiration time and check it in every request. Blacklist breaks JWT statelessness because it requires maintaining the state. One of the benefits of JWT is no need server storage, so if you need to revoke tokens without waiting for the expiration, think also ab...

This is a simple example to search in Google. It containt two parts, Feature File Step Definition File Am not going into much details here as the code itself is self explanatory. Feature File Feature:Google Key word search @mytag Scenario: search Spec Flow in Google search bar Given...

If you want to use "cmake" (see www.cmake.org), type cd [your libpng source directory] cmake . -DCMAKE_INSTALL_PREFIX=/path make make install where "/path" points to the installation directory where you want to put the libpng "lib", "include", and &quot...

This will download libpng from the official "git" repository and build it in your "libpng" directory. git clone https://github.com/glennrp/libpng.git libpng cd libpng ./autogen.sh ./configure [--prefix=/path] make install where "/path" points to the installation...

Basic architecture examples on how development for embedded systems works (i.e. IDEs, cross-compiling, downloading, in-line debugging, JTAG,...) and what would be the minimum requirements for starting. It would be worth mentioning different approaches and platforms from begginers-higher level to ad...

HtmlHelper.Action() @Html.Action(actionName: "Index") output: The HTML rendered by an action method called Index() @Html.Action(actionName: "Index", routeValues: new {id = 1}) output: The HTML rendered by an action method called Index(int id) @(Html.Action("In...

Project structure project/ group_vars/ development inventory.development playbook.yaml These variables will be applied to hosts under the development group due to the filename. --- ## Application app_name: app app_url: app.io web_url: cdn.io app_friendly: New App env_type: ...

Monkey patching is the modification of classes or objects outside of the class itself. Sometimes it is useful to add custom functionality. Example: Override String Class to provide parsing to boolean class String def to_b self =~ (/^(true|TRUE|True|1)$/i) ? true : false end end A...

A very simple example would be to fade out an SKSpriteNode. In Swift: let node = SKSpriteNode(imageNamed: "image") let action = SKAction.fadeOutWithDuration(1.0) node.runAction(action)

One helpful case is to have the action run a block of code. In Swift: let node = SKSpriteNode(imageNamed: "image") let actionBlock = SKAction.runBlock({ //Do what you want here if let gameScene = node.scene as? GameScene { gameScene.score += 5 } }) node.runActi...

If you want to use docker for rails app, and use database, you need to know that all the data in the docker container will be destroyed (unless you configure the container specifically for keeping data) Sometimes, you need to create a docker container with an application and attach it to an old con...

Controller: In the Controller you have to add the RequestHandler component. This Enables CakePHP to automatically detect Ajax requests(see: http://book.cakephp.org/2.0/en/core-libraries/components/request-handling.html for more info): class YourController extends AppController { public $compo...

To select an element by an exact HTML attribute use the css locator pattern [attribute=value] //selects the first element with href value '/contact' element(by.css('[href="/contact"]')); //selects the first element with tag option and value 'foo' element(by.css('option[value="f...

To select an element by an HTML attribute that contains a specified value use the css locator pattern [attribute*=value] //selects the first element with href value that contains'cont' element(by.css('[href*="cont"]')); //selects the first element with tag h1 and class attribute that...

Sometimes users from other regions than English-speaking have problems with encoding while for example programming a php project. It can be, that the server has another encoding then UTF-8, and if someone want to create a php project in UTF-8 on this server, his text might be shown incorrect. Examp...

One of most common use cases of Gitflow Initialize repo and define branches $ git flow init # if you use default setup, you'll define six types of branches: # # main branches (lives forever) # # 1. master: for production releases # 2. develop: for "next ...

Pandas provides an effective way to apply a function to every element of a Series and get a new Series. Let us assume we have the following Series: >>> import pandas as pd >>> s = pd.Series([3, 7, 5, 8, 9, 1, 0, 4]) >>> s 0 3 1 7 2 5 3 8 4 9 5 1 ...

Sometimes it maybe useful to have multiple distinct indexes of a field with different Analyzers. You can use the multi-fields capability to do so. PUT my_index { "mappings": { "user": { "properties": { "name": { "type...

$rootScope.$on listeners will remain in memory if you navigate to another controller. This will create a memory leak if the controller falls out of scope. Don't angular.module('app').controller('badExampleController', badExample); badExample.$inject = ['$scope', '$rootScope']; function badExam...

Tomcat's Host Manager application by default is located at http://localhost:8080/host-manager, but is not accessible until a user is given permission in the conf/tomcat-users.xml file. The file needs to have: A manager-gui role A user with this role For example: <tomcat-users> ......