Add Gatsby blog to specific URL in a React app - reactjs

I have two separate apps. One is a react app that is deployed at www.example.com, the other is a completely separate blog app built with Gatsby.
I would like users to be able to visit www.example.com/blog and see the blog app without using a redirect that would change the URL.
Both apps are hosted as separate firebase projects, is this achievable?

There's a feature called pathPrefix which purpose is what you are looking for.
You just need to set it in the main Gatsby configuration file (gatsby-config.js):
module.exports = {
pathPrefix: `/blog`,
}
Following the previous example, a link to /test-1 will be rewritten as /blog/test-1 automatically.
Another important consideration is to understand that all your building commands (build and serve) will need to be respectively flagged as:
gatsby build --prefix-paths
gatsby serve --prefix-paths
During development paths don't need to be prefixed.
In-app linking is handled automatically by Gatsby's Link component.
For pathnames you construct manually, there’s a helper function, withPrefix that prepends your path prefix in production.
Additional resources:
https://www.gatsbyjs.com/docs/how-to/previews-deploys-hosting/asset-prefix/
https://www.gatsbyjs.com/docs/deploying-to-gitlab-pages/#add-path-prefix-to-gatsby

Related

How to deploy Next.js app without Node.js server?

I was hoping to deploy a Next.js app with Laravel API. I had developed React apps with CRA and in those I used the API server to serve the index.html of the CRA as the entry point of the app.
But in Next.js, after development I get to know that it needs a Node.js server to serve (which is my bad, didn't notice that). There is an option next export that builds a static representation of the Next.js app and it has an index.html. I am serving the index.html as the entry of the app by my Laravel API. It is serving the page, but just some of the static contents.
What I was hoping to know is it possible to host the aPI and the Next app from a single PHP shared hosting without any node server? If so, how? If not so, what could be the alternatives?
Actually the acepted answer is completly wrong, when you do yarn build and in your package.json is set like "build": "next build && next export", you will get an out folder which all the items in there are used to build without node.js server
Now since you are using laravel, and you use the out folder you will only load half of the page because the routes are not set properly. for that to work you need to edit your next.config.js edit it to
module.exports = {
distDir: '/resources/views',
assetPrefix: '/resources/views',
}
These will set the root directory to the root one in Laravel. now this will work for SPA (single page application) only for the dynamic routes you need to match with a view file for each one that you have in your out folder
For each route that you have you need to create a new "get" route in laravel
Route::get('/', function () {
return require resource_path('views/index.html');
});
Route::get('/contacts', function () {
return require resource_path('views/contacts.html');
});
Route::get('/post/{slug}', function () {
return require resource_path('views/post/[slug].html');
});
Notice that you can pass a wildcard for dynamic routes and they are all gonna work. once you do that and you deploy route out folder inside /resources/views in Laravel it's going to work
Apparently there is no alternative to nodejs server, which is not an option for me currently, so I unfortunately had to abandon next.js and create a CRA app and used as much from the next.js as I could.

How to support react js app for 2 different sub domains

I am a bit struggle with support to a react js to support 2 different subdomains. Followings are the subdomains I need my app to support
www-dev.somedomain/apps/myapp
app-dev.somedomain/myapp
As you can see, react-app-path is also changing with the subdomains. I have defined PUBLIC_URL and REACT_APP_PATH in my .env file as below.
REACT_APP_PATH=/myapp
GENERATE_SOURCEMAP=false
PUBLIC_URL=/myapp
With above env vars app-dev... URL is working. If I change to the path to apps/myapp then www subdomain in working. I need a way to support both subdomains at once
How can I achieve this?
Finally, I solved this problem with the following steps; I was using Nginx to be redirected to the same host. The problem I have was with the paths.
www-dev.somedomain/apps/myapp
app-dev.somedomain/myapp
According to my Nginx configurations, both URLs were redirected to / in the server. Then the app couldn't find the static files because paths were different with domains. So to fix this, I did as below.
First, remove PUBLIC_URL from my env file. Then app files will be hosted at the / location
Added homepage attribute to package.json file. adding homepage will serve assets relative to index.html. Read more about homepage. Using `"homepage"` in package.json, without messing up paths for localhost
Since the app is using internal routing, I added simple Nginx rule to rewrite the location of static files as below.
rewrite /static/(.*)$ /static/$1 break;
This solved my problem with supporting two doamins.
No way, Your React app will be compiled into static HTML, JS, and CSS files, and the only time you can pass parameters to the build tool is before building, which is what you're doing right now. Once the building is complete, it can't be changed.
You can write two shell script, with different environment variable. Then invoke each of them will build different web app.

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.

create-react-app with multiple entries

I have a create-react-app project where I am creating a front side for users and an admin side, and want this two sides to use the same code base and run on one time instead of building two separate apps and each will use a different theme and files.
As suggested in some places I have ejected my create-react-app App and then tried adding a different entry point as suggested in this tutorial:
http://imshuai.com/create-react-app-multiple-entry-points/
but when i navigate to /admin nothing happens...any suggestions?
I am using react-router-dom as well.
When you navigate to /foo Webpack dev server has a little convenience feature to consider /foo/index.html as well if /foo does not exist. This is probably meant to be compatible with the user's expectations of other HTTP servers (i.e. Apache, Nginx). This means that /admin resolves to either something actually called /admin or /admin/index.html if the former is unavailable.
If you did follow the linked tutorial, the path you are looking for is clearly not supposed to be /admin but /admin.html. And your normal 'user' front end remains at /index.html, which is why you can still navigate to it the same way you were used to before ejecting.
Note: I don't speak Japanese, but I do read Webpack, so I just looked at the sample Webpack config and layout of the build/ folder as described in the tutorial.

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