I am using react and redux for my application. I have to build one functionality where all text data will be loaded first and then images. I would like to know how to load text data first then images while fetching data from endpoints. Till images are not there I want to show gif images.
In the success callback of the api call to get the text, get the images.
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I need to check several filters on the page heavily populated with images. The filters check images text only, so I would like to set up the browser for not displaying the images to speed up the test execution. Is it possible in Cypress?
There's a couple of ways, but it depends on how the page displays the images.
If it fetches them from an API, use cy.intercept() to catch the call to the API and stub the response
Check the network tab of dev-tools for fetches that load the images.
General pattern,
cy.intercept('/url-fetching-images', {})
May need adjusting if URL's vary per image - you can add wildcard chars.
I have gone through posts where they are able to generate pdf and save in react.
But I don't want to save the pdf instead want to keep it in memory or send it as a stream to the service.
Right now I'm working on a movie browser app which displays images of the acting cast. The images themselves are loaded from an external source via a URL link. I'm wondering how I can pass those images through a face detector, and display the cropped face within an img tag?
The image tag itself requests a src, but I intend to use the image after it has been passed through the face detector, meaning it won't be coming from an external source. I don't think I can pass an image matrix into img directly, so how could I store the image within my React app so it can be passed into img?
This app will be deployed on GitHub Pages or Netlify for public viewing, so I won't be able to modify the source files presumably. I'm assuming a server will come into play but how?
Hi I am developing an ionic app using firebase as my database.
I read this question.
I understand it and have a more specific question.
I uploaded an image on amazon s3, imgur and filestack, and tried all three in firebase using data:url/<the url of image> and data:image/jpeg;<url of image>.
Am I typing something wrong into firebase?
The image does not come up. I do not want to write code in the app to upload the image etc, I just simply want an image to display on the app beside some data corresponding to an item in my firebase database.
I have read about base64, do I have to use it in this case?
(Optional) Perhaps If you could expand on the steps of doing this:
"You can use a filepicker to get the image file. Then you can host the image however you want, i prefer amazon s3. Once the image is hosted you can display the image using the url generated for the image."
I don't have much ionic experience, but why not just save the direct path to the image url and not include the data:url/ portion.
Simply store the url in firebase and then when it's retrieved inject it into your img src.
We use Highcharts JS in our Webapp. We also use "highcharts exporting" so that our customers can download a diagram or piechart with just one click.
Now I would like to add the functionality that you can download all diagramms which are display by highcharts with just one click. So that our customer does not have to download each chart individually. is there such a functionality in highcharts already?
I can not find an easy way to do this.
The highcharts exporting module is submitting a POST request to the highcharts server (passing in the SVG of the chart) to generate the PDF or PNG.
I tried calling chart.exportChart() in succession but this will not work since the first calls changes document focus and the subsequent calls will not fire. So I think you have two options:
Do it server side. Have your javascript return the SVG (chart.getSVG()) of all the charts and write a server side script that generates the POST requests, zipping up the resulting files and returns them client side.
Stay client side. Get the SVG of the chart objects and manipulate it to embed multiple charts in one SVG document. Then make the request to the highcharts server. This way you could get one PDF document containing multiple charts.
This is how I would do it:
Set up your own export server with the hekp of PhantomJS. (Here's a shortcut for this http://www.highcharts.com/articles/2-news/52-serverside-generated-charts)
Send each chart data through AJAX to the PhantomJS export service.
Combine your exported PNG's to one image with server side script (php or py) or with the help of PhantomJS by rendering all in one page, rasterize and export as one and send back its path via AJAX to the front end.
Receive the image and let users download it :) .
The first two steps are explained i ndetails in a recent tutorial video I created for Packt here: https://www.packtpub.com/web-development/learning-highcharts-video
I hope it helps.