Tutorial by Examples: s

Http with axios

Configure For web request you can also use library axios. It's easy to configure. For this purpose you can create file axios.js for example: import * as axios from 'axios'; var instance = axios.create(); instance.defaults.baseURL = serverURL; instance.defaults.timeout = 20000;] //... //and...

Setup Token on Header

Set the token on <head> of your default.blade.php. <meta name="csrf-token" content="{{csrf_token()}}"> Add ajaxSetup on the top of your script, that will be accessible to everywhere. This will set headers on each ajax call $.ajaxSetup({ headers: { '...

Set token on
tag

Add below function to your <form> tag. This function will generate a hidden field named _token and filled value with the token. {{csrf_field()}} Add csrf_token () function to your hidden _token in the value attribute. This will generate only encrypted string. <input type="hidden&q...

Check session storage path & permission

Here I assume that project app url is APP_URL=http://project.dev/ts/toys-store Set the writable permission to storage_path('framework/sessions') the folder. Check the path of your laravel project 'path' => '/ts/toys-store', the root of your laravel project. Change the name of your cookie 'co...

Use _token field on Ajax

There are many ways to send _token on AJAX call Get all input field's value within <form> tag using var formData = new FormData($("#cart-add")[0]); Use $("form").serialize(); or $("form").serializeArray(); Add _token manually on data of Ajax. using $('meta[n...

Installation or Setup

Detailed instructions on getting sqlite3 set up or installed.

Server supports ranges

Request:"http://example.com" GET / HTTP/1.1 Host: example.com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate ...

Server doesn't support ranges

Request:"http://example.com" GET / HTTP/1.1 Host: example.com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate ...

dispatcher-servlet.xml

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context=&quot...

@Controller & @RequestMapping

@Controller @RequestMapping("/appointments") public class AppointmentsController { //your handlers here, for example: @RequestMapping(path = "/new", method = RequestMethod.GET) public AppointmentForm getNewForm() { return new AppointmentForm(); } @RequestMapping...

@RequestParam

@Controller public class EditPetForm { @RequestMapping("/pets") public String setupForm(@RequestParam("petId") int petId, ModelMap model) { Pet pet = this.clinic.loadPet(petId); model.addAttribute("pet", pet); return "petForm...

“Keep Me Logged In” - the best approach

store the cookie with three parts. function onLogin($user) { $token = GenerateRandomToken(); // generate a token, should be 128 - 256 bit storeTokenForUser($user, $token); $cookie = $user . ':' . $token; $mac = hash_hmac('sha256', $cookie, SECRET_KEY); $cookie .= ':' . $mac...

Read file from document directory in chunks

I get the file path from document directory and read that file in chunks of 1024 and save (append) to NSMutableData object or you can directly write to socket. // MARK: - Get file data as chunks Methode. func getFileDataInChunks() { let doumentDirectoryPath = NSSearchPathForDirectoriesI...

Display username

You can show username for autenticated users <div sec:authorize="isAuthenticated()"> Welcome, <span sec:authentication="name">Username</span> </div>

Display different content to different roles

The sec:authorize attribute renders its content when the attribute expression is evaluated to true <div sec:authorize="hasRole('ROLE_ADMIN')"> Content for administrators </div> <div sec:authorize="hasRole('ROLE_USER')"> Content for users </div&g...

/* */ delimited comments

A comment starts with a forward slash followed immediately by an asterisk (/*), and ends as soon as an asterisk immediately followed by a forward slash (*/) is encountered. Everything in between these character combinations is a comment and is treated as a blank (basically ignored) by the compiler. ...

// delimited comments

C99 C99 introduced the use of C++-style single-line comments. This type of comment starts with two forward slashes and runs to the end of a line: // this is a comment This type of comment does not allow multi-line comments, though it is possible to make a comment block by adding several single ...

Installation or Setup

Detailed instructions on getting google-api set up or installed.

Localization messages with parameters

Write message in messages.properties welcome.message=Hello, {0}! Replace {0} with the user name inside thymeleaf tag <h3 th:text="#{welcome.message(${some.variable})}">Hello, Placeholder</h3>

Remote Power Supply Testing

Remote Power supply simulation Since we don't have a real remote power supply hardware, we are going to simulate it using python program. Basic idea about RPS Actually remote power supply has a http server. User can send commands to turn ON/OFF power supply using http request. We are going...

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