logo
Tags down

shadow

prevent load image on nodejs request


By : Tim
Date : October 17 2020, 01:08 AM
I wish this help you Request itself doesn't parse HTML code or run Javascript. It will only download the source or the URL that you enter. If it's a normal website, it literally returns the HTML source.
The only time you can pull images with "request" is if you use a URL that directly links to an image. E.g http://example.com/image.jpg
code :


Share : facebook icon twitter icon

How to return image in NodeJS after intercepted image get request?


By : Ron Bigus
Date : March 29 2020, 07:55 AM
will be helpful for those in need Set encoding: null in your options. This will keep binary data intact by keeping the response as a Buffer instance instead of converting it to a UTF-8 string:
code :
  var options = {
    url: 'http://my2website.com'+ req.path,
    headers: {
        'User-Agent': req.headers['user-agent']
    },
    encoding: null
  };

Most robust way to preload image to prevent visible image load? (Without JS)


By : Lmaseiyan Lemerele
Date : March 29 2020, 07:55 AM
I wish this helpful for you 1. Progressive JPEG
To avoid the "top to bottom" loading of an image you may use "progressive jpeg" which renders a "blurred" version of the picture during it's loading instead of "top to bottom" : Ex. : http://blog.patrickmeenan.com/2013/06/progressive-jpegs-ftw.html
code :
<img src="data:image/jpeg;base64,iVBORw0KGgoAAAANSUhEUgAAADIA..." alt="" />
<img src="data:image/jpeg;base64,<?=base64encode(file_get_contents($file_path))?>" alt="" />
<html>
<head>
  <link rel="stylesheet" href="your_image_01.jpg" />
  <link rel="stylesheet" href="your_image_02.jpg" />
</head>
<body>
...
  <img src="your_image_01.jpg" alt="" />
  ...
  <img src="your_image_02.jpg" alt="" />
...
</body>
</html>

dojo/request a png image array buffer using NodeJS, and return the image to the client


By : gopal dangol
Date : March 29 2020, 07:55 AM
it fixes the issue I was looking to do a similar action but didn't found any answer. After some trial and error I seem to have figured it out.
In your request options add the option encoding: null, this will get the image in a base64 format from the original source.
code :
request({
    url: yoururl,
    method: 'GET',
    encoding: null
}, function (error, response, body) {
    if (!error && response.statusCode === 200) {
        res.send(response.statusCode, body);
    } else {
        res.send(response.statusCode, body.toString('utf8'));
    }
});
var result = getBase64FromMyUrl();
var src = 'data:image/PNG;base64,' + result;

nodeJS request package load with javascript


By : Ruaa A Mohammed
Date : March 29 2020, 07:55 AM
should help you out Use a headless browser such as PhantomJS.
A module for integrating with Node.JS is available: https://github.com/amir20/phantomjs-node
code :
var phantom = require('phantom');
phantom.create().then(function(ph) {
    ph.createPage().then(function(page) {
         page.open('https://www.instagram.com/collectnet/').then(function(status) {
            console.log(status);
            page.property('content').then(function(content) {
                console.log(content);
                page.close();
                ph.exit();
            });
        });
    });
});

Nodejs prevent new request before send response to last request


By : user3410072
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Even tho I agree with jfriend00 that this might not be the optimal way to do this, if you see that it's the way to go, I would just use some kind of state management to check if it's allowed to access that /get request and return a different response if it's not.
You can use your database to do this. I strongly recommend using Redis for this because it's in-memory and really quick. So it's super convenient. You can use mongodb or mysql if you prefer so, but Redis would be the best. This is how it would look, abstractly -
code :
app.get('/get', function (req, res) {

    //get isloading from your state management of choice and check it's value
    if(isLoading == true) {
        // If the app is loading, notify the client that he should wait
        // You can check for the status code in your client and react accordingly
        return res.status(226).json({message: "I'm currently being used, hold on"})
    }

    // Code below executes if isLoading is not true        
    //Set your isLoading DB variable to true, and proceed to do what you have
    isLoading = true

    someAsyncFunction(function(result){
         // Only after this is done, isLoading is set to false and someAsyncFunction can be ran again
         isLoading = false
         return res.send(result)
    }
}
Related Posts Related Posts :
  • Node.js performance
  • How to manage DEV and PROD deployment on Heroku with Node.js
  • Application unable to connect to mongodb on DigitalOcean droplet
  • Node JS + Mongo DB: ValidationError: User validation failed: username: Path `username` is required
  • Mongoose sub field aggregation with full text search and project
  • Connect to MySQL database from Lambda function (Node)
  • Compiled with `coffee` stopped working
  • EADDRINUSE error for opening websocket on different path but same port in nodejs
  • Gmap distance between point and path server side
  • Cannot find module ; Hyperledger Fabric Tutorial
  • Node Script to consume all available memory
  • Which HTTP Method to Choose When Building Restful API
  • How can supervisord restart the npm start command successfully?
  • VSCode - How to debug a Node program that starts its own debugger, using a launch configuration?
  • Can't execute any operations on my sequelize model
  • NodeJS - How to copy one folder to another, overwriting only files that differ?
  • Reading Console using Selenium Webdriver Chrome on Node.js
  • Requestjs has two different syntaxes: one as an array, one as an object
  • How can I make 'require(packageName)' read multiple module paths besides 'node_modules'?
  • Keep NodeJS connection object in shared database/memory
  • Add new card to existing customer in Stripe Node.js
  • Ping Angular 2 application
  • shadow
    Privacy Policy - Terms - Contact Us © soohba.com