Images not displayed on gh-pages after deploying react app - reactjs

I have created an app, wherein i have given images paths as recommended by community. While running locally it loads and displays all the images but after i deployed on github pages, it is not taking the correct path to get the images. I dont know how to resolve the issue , can someone help me ?
i have tried adding %PUBLIC_URL% and all but nothing seems to work
This is what i have tried and works in local. My images are located under
public/images/login-background.png
background: url('/images/login-background.jpg') center center
no-repeat;
While i publish my project to github, url changes from 'localhost:3000' to 'https://singhkshitij.github.io/abc/' so all the images take url as
https://singhkshitij.github.io/images/login-background.png
while it should be
https://singhkshitij.github.io/abc/images/login-background.png

I'm going to assume you've used create-react-app to bootstrap your application. In which case you need to specify the homepage property in package.json to something like
"homepage": "https://singhkshitij.github.io/abc",
Reference - https://facebook.github.io/create-react-app/docs/deployment#building-for-relative-paths

I had the same issue. Basically you need to change
url('/images/login-background.jpg')
to
url('homepagePath/images/login-background/jpg')
where homepagePath is the url of your application served by github:
https://{username}.github.io/{reponame}

Related

After Deploying the React app the page displayed is black on github pages

https://itsmenick.github.io/my-portfolio/ this is my url
I did all the changes regarding the deployment ie changes in script and all but still not reflected in this.
https://github.com/ItsMeNick/my-portfolio/ this is my github path to repository
Can anyone say what is the mistake ?
That is odd. and the development build works just fine? I noticed there is a cors error from you github page and this could be your issue.

How do I make React App Page show showing on Github?

I need help on my react app portfolio that I've uploaded to Github. Link: https://amex23.github.io/my-portfolio/
The pages doesn't show up, thoug it runs fine in my local computer.
PLEASE HELP
The links to your content are broken.
In your source they are like:
https://amex23.github.io/amex23/my-portfolio.git/static/js/main.3ac9e73c.chunk.js
They should be like:
https://amex23.github.io/my-portfolio/static/js/2.df4fd8bb.chunk.js
You can open up your index.html and change them all manually but there is something wrong with your build step or site config that made them that way

Nextjs 404 error on reload/ refresh action

I'm using Nextjs for a front-end application and dotnet core 3.1 for the Web API. There are some pages that are static and other that are dynamic I followed the official documentation to achieve this. On development mode (local machine) everything works fine. Both static and dynamic routes are working properly and fetching data from the dontnet core Web API.
However, when publishing the Nextjs app following this steps:
yarn build
yarn export
An out folder is generated at the root of the project
The content of that folder is uploaded to the server
After, the deployed files are uploaded and when loging to the app, it redirects to the main page (until here is working OK), but as soon as I click on the reload page botton (Chrome) I am gettint the 404 error.
Looking at the console in the developer tools I got this:
I found this Stackoverflow link with same issue but there the answer is to use Express for server routing. In my case I am using dotnet core Web API for server requests. So, not sure how to do that.
Is there a way to fix this from the client side? Might be a configuration is missing?
The only thing I noticed while doing the export was a message saying: No "exportPathMap" found. Not sure if that would the the reason.
I had got similar issue in react when all of my pages after building and exporting had ".html" extensions. I solved it by the following code in next.config.js file.
next.config.js
module.exports = {
exportTrailingSlash: true,
}
Note: Do not work with the above code while in development. Use it just before building the project.
You can find the documentation link here: https://nextjs.org/docs/api-reference/next.config.js/exportPathMap#adding-a-trailing-slash.
UPDATE
The above code was for next.js v9.3.4 which I was using at that time. For newer versions below code should be used according to docs.
next.config.js
module.exports = {
trailingSlash: true,
}
it has been fixed update your nextjs package
npm install next#latest
based on the current version of Next js you have, visit here to see if there's any breaking change before updating what you have
I had a similar issue where after deploying the out folder created by next export all URL's would redirect me to the homepage. Everything was working fine during development and all URL's were accessible with next/link but in order to access pages with a URL I had to add a .html extension at the end of the URL.
Because I needed a quick workaround I added a useEffect block in the _app.tsx file for rerouting so that upon landing on the homepage it would act as if a Link component was clicked redirecting to the entered URL.
useEffect(()=>{
router.push(window.location.href)
},[])

React: Accessing a page outside React app, inside public folder

I have a React application created by create-react-app. The app works fine, but I have run into a problem
I need to test som ad things on a plain html site, no additional React code. The problem I have is that the ads.txt tags need to be crawled by Google, which can take up to 24 hours on a new page/URL, time that I don't really have.
So I did the following. In my repo under /public folder I added a folder /ad-test with an index.html inside. When I serve it locally using npm start and go to http://localhost:3000/ad-test, it works fine.
Great, I thought and deployed it to the production environment, but now when I try to go to http://[my-site]/ad-test or http://[my-site]/yo-test/index.html it does not work (I get the React 404 site that I created).
I looked here and if I understand correctly, it is not possible to do it the way that I tried since the build stage will not include the public folder. Am I correct in this?
Any idea how to solve this?
EDIT:
I have a good knowledge of React and React Router in general, the app already uses <Switch><Route ... /></Switch> with a catch-all route directing to Not Found Component and the bottom.
The problem I have is that we include some ad scripts from an ad provider. The ads are not displayed in the application (adblockers totally removed from browser etc.) and the provider thinks that we have made errors in the React code.
We don't think that we made any errors (the ads were displayed fine in our test environment but not in prod) and we have to prove that React is not to blame for the ads not showing.
To do this we created a static HTML file with all ads hardcoded, no React components or other things that might disturb. BUT, because of ads and Google crawlers and ads.txt, we need to have the static test page under the same domain as our main page/application.
This is why I ask if it is possible to somehow add a static HTML that can be reached from http://my.page/test-page.html without being "intercepted" by react router, i.e. it exists outside React but on the same server.
When you use react by create-react-app, it means you are building a single-page application.
What this means is that after running npm run build you will have a build folder with only one html file called index.html in that fold.
This index.html does not know and has no relationship with your added 'index.html' in ad-test folder.
If you want your ad-test html to be recognised by react, you need to make it a component of app.js and use react-router to give it a pathname.
It is very simple.
First, install react-router-dom;
Second, set up react-router-dom;refer to https://reacttraining.com/react-router/web/guides/quick-start
Third, give your add-test component a pathname.Your js code should look something like this:
<Route path='/ad-test' component={AdTest} />
IMPORTANT:
After you deploy your app, always remember you just built a single-page application.
You only have one html in your app.
Please make sure when you test your app after you deployed you must tell your service provider that no matter what pathname a user inputs in the address bar you always redirect it to the index.html
The build stage includes the public folder:
If you have a picture in the public folder, and this picture was imported to other components it will be shown after you run npm run build
Hope it helps.
Have you tried playing with webserver configurations? It is usually setup to redirect all traffic to index.html. Maybe exclude your static html path from redirection?
Place test-page.html in public folder like
public/path-to-static-html/test-page.html
Configure webserver for
directing all traffic to index.html EXCEPT /path-to-static-html which
will be directed to test-page.html.
For example, in case of Apache
you will be setting the DirectoryIndex directive.

React app on GitHub Pages - URL missing repository name

I am keeping images in a folder public/assets/img. Then I use it in a component like that:
const imageUrl = "/assets/img/image.png"
Locally everything works fine, but on GitHub Pages in an image URL somehow name of my repo is missing, so instead of
http://name.github.io/my-repo/assets/img/image.png I get http://name.github.io/assets/img/image.png
I was following an instruction on how to create a GitHub Pages build and added in package.json the URL of my project, namely "homepage": "https://name.github.io/my-repo"
-- edit --
Also, I've just now realized, that although the routing seems to work fine, it also misses my repository name in the URL, so instead of
http://name.github.io/my-repo/subpage there is
http://name.github.io/subpage
What am I missing here?
OK, so I somehow have solved my problems, however, I am not quite satisfied with the solutions:
Fixing the URL problem (missing repo name in the URL)
I've added a basename property to my router <BrowserRouter basename="/repo-name">
Downsides: Firstly, it doesn't look good hardcoded. Secondly, npm start opens localhost:3000 which is empty now. I have to add my repo name to open the app locally, so localhost:3000/repo-name - not too neat.
Fixing images problem (also missing repo name in the URL and thus not displaying images)
I've added a process.env.PUBLIC_URL variable to the image URL: const imageUrl = ${process.env.PUBLIC_URL}/assets/img/image.png. In local environment it's empty, deployed it takes homepage value from package.json, which is https://name.github.io/repo-name
Downside: one has to add process.env.PUBLIC_URL before every image displayed in a component.
I would be grateful for any better solution!

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