Env local react not working Appending "REACT_APP" to my variables don't register under process. It's using serve to run the app after build, if we start the app with development code by running ENV=production npm run start it can read the process. Here is my . Development 2. Which I assume is because the file isn't set It's happened to the best of us. CRA Docs on Adding There are multiple reasons why React might not be picking up your environment variables from a . ADMIN MOD . env file, and for whatever reason, the environment variables just aren't working. Create-React-App: . The Create React App documentation states that you must prefix all environment variables within your . In all environments, the existing env is not overridden by following Place the . I would suggest creating a . Dotenv will not fail to run if the env file can't be found. js for the ejected create-react-app and NODE_ENV=development react-scripts start for the unejected one. The . env files. My . . In your case it will be . Your framework doesn’t automatically load . If the file does not exist then create a file named . With react-scripts@5 BROWSER is not working when placed in an . create-react-app does not pick up . env, many packages like Express. 0. example to . env file and have been doing it but it always comes up as undefined when I try to access it with process. I, for ex, added console. in the file, I have my API key like so. local in this case) i. ex: ** Make sure your . env file in Create React App, make sure: Your . development as the filename, it should work when running locally. When using a . env file is commonly utilized during development when using dotenv to import environment variables into the application's Next. Ask Question Asked 1 year, 11 months ago. env file doesn't have the little gear icon? I am using it for my sanity. env was read fine, but not . env, but not when you used . This makes deployments to services like dokku (where all env is treated as system env) a massive pain, especially if you keep env in a non-root folder. any suggestions? I'm currently working with a 3rd party API, which has an API key. Actual behavior. I’ve added a section to the end of this article (see: Built-in support) summarizing the changes and limitations. Now you can skip the command cp . I am intending to store it in a . env files in the root directory, not the src directory. npm start will set REACT_APP_NODE_ENV to There's also the win-node-env module but I don't think it knows about that environment variable. The best solution in this case is to If you need server-side values in your client-side code, either configure your bundler so that it can make that happen, or give the server a /config. Since NextJS is setup all I would need to do is create an env. The fix 👉 Use a lightweight package like dotenvto load your environmental variables for use. json "start": "CHOKIDAR_USEPOLLING=true react-scripts start" doesn't work. json endpoint or the like so it can respond with the up-to-date values your client needs. e. com REACT_APP_PROJECT_ID=name You should declare this variable before running npm start. development and . example . example. env . 1. env but it appears as null, I've restarted the dev server, reinstalled node_modules (just in case) changed var prefixes to REACT_APP_XX, tried using process. env file and your variables returned undefined check the below items. Now, in the . After changing that, the line in package. local. gitignore, one after another, Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I am trying to target multiple environments from local while executing React app. REACT_APP_<variable name> If you don't want to use REACT_APP_ prefix, you can use env-create-react-app I am relatively new to the Next. : (npm start): . With create react app, you need to prefix REACT_APP_ to the variable name. development. 🤔. There's no need to download dotenv package, and starting the name of the variable with REACT_APP_ will not make it work. 1. Thanks for the help Here's the priority of the files for the development build and the production build (higher priority on the left): Dev. NEXT_PUBLIC_ variables will be exposed to the browser if used on the client side, so there shouldn't be any sensitive data stored in them. g. js. If you have named it differently, such as . env file in the project root with the line REACT_APP_FOO=foo; Try to access process. Edit: Apparently NODE_ENV=development is not required since it is already hardcoded when you Depending on the environment (as set by NODE_ENV), Environment Variables are loaded from the following sources in top-to-bottom order. env into . js don’t. env' file not works as expected. env instead of process. development, the app might not pick it up. Staging 3. js: Add . new webpack. gitignore file, and I'm listing these 4 files in the . I have a project. example part work? let's say i want to launch the app in my local environment. DefinePlugin({ I am creating MERN application and using env file but I am not able to access env variable inside react application , below is my code import React from 'react'; import { BrowserRouter as Router, R Firebase + React auth not working with my . Check if . env file is located in the root directory of your project While some frameworks and packages come built-in support for environment variables using . BROWSER=msedge used to work with react-scripts@4, with v5 this is ignored and the default browser opens When I tried to use them as process. Regardless of whether you choose . js file is in gitignore and env. NODE_ENV=development && node scripts/start. NEXT_PUBLIC_ variables will be exposed to the browser Expected the API_HOST variable to be available on process. env folders with same name, it will not work. Run these commands in the project folder and fill in When you have two . This is common if you use a system like vault for K8 clusters. local in the frontend Create React App expects the . In the root directory are these 4 files: . Note: You must create custom environment variables beginning with REACT_APP_. env file with FAST_REFRESH=false CHOKIDAR_USEPOLLING=true doesn't work. XX global object, basically gone through all different ways to read vars from a . env file. env by default. I have a react app created using npx create-react-app app and a . config. local file, the In your package. staging I have a . production. This might be a repeat, but I can't find an answer for my particular use case. Instead, you’ll need to load them yourself or through a library like dotenv. After modifying the . But, as I understand it NextJS (I have have the latest version installed) provides a built in env variable solution. env or . While some frameworks and packages come built-in support for Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company For React it is "REACT_APP_YOUR_VARIABLE" Vue is "VUE_APP_YOUR_VARIABLE In my case . env the file exists or not. env file doesn't parse correctly. js is a React framework for building full-stack web applications. js import type {NextPage} from ' Describe the bug. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I'm in WSL2, and my react app does not update any changes at all, only updates when re-running "npm start" I've tried "npm install react-dotenv" and creating an . env file (I'm using . 0 additionally adds support for variable expansion. env file in react when I create a . env: REACT_APP_NOT_SECRET_CODE=abcdef App. Now execute the command cp . You've just started your dev server after adding in all your required environment variables to your . But For sure, it's too dangerous so I don't wanna do it. Here are a few reasons why: 1. local and paste it in . ts file to hide my project ID in a NEXTJS application and it is messing everything up. If you set the variable in . API_KEY=SOME_API_KEY Then when i try to access it in getServerSideProps with process. When I console. I imagine you got this working by now, but for anyone else that finds this, you set your default environment variables in a . I do not get anything but the default environment variables logged out: Environment. – Mike 'Pomax' Kamermans Dotenv and nodes --env-file work differently. I have restarted my development server, cleaned the cache of npm but my Update: create-react-app 1. local file, Vscode stops recognizing the file at all. env which is outside of the src directory of my React JS app. REACT_APP_smth, they all didn't work. env, with the only variables being registered are FAST_REFRESH: true, NODE_ENV: "development", PUBLIC_URL: "", react-native-config does not work with RN 0. Solution 2: Enter to the project root directory using your terminal. env files with REACT_APP_ for them to be available from within your code process. I am new to env and I just looked into 'How to add custom env to React projects. example is used as an outline, . By default you will have NODE_ENV defined for you, and any other environment variables starting with REACT_APP_. To Perhaps I'm not understanding the docs or the medium articles. In ReactJS environment variables are fetched from . json should be: "dev": "cross-env TAILWIND_MODE=watch next -p 3200", If you need to handle signals in your program use cross-env-shell command (also provided by cross-env module) instead of cross-env. 56, it has unresolved issues and it is unmaintained for over 6 months. I followed the steps described and it worked in the development. But, when I tried to open the site in Vercel and see the console, it is returning undefined. Members Online • jerm1698. local file is not working right . env files out of the box. Either way: do not expose values that are in any way sensitive like cookie secrets, auth tokens, etc. env; Use global. env. local file in my project root, it's not setting up properly. Need help Does anyone know why my . local to store . API_KEY, it doesn't work. log("process is ", process); I have a react app , created with create-react-app then I build the app with command: npm run build. json to name . js, and for some reason, in my local system I can not access environment variables. To separate out the variables used when using npm start and npm run build you can create two more env files - . development or . For both frontend and backend, either you should use . So, there is no need for the dotenv package. local or . env file in my root directory. env; Not sure if this is the best practice, but solved my problem for now, works like a charm and doesn't require me to reload my application at every change. I am giving all the related files here. This is particula Learn how to define and read Environment Variables in a React application bootstrapped with create-react-app, and why you sometimes can't access them in your code. 2. Both return similar errors as referenced above when I run npm start. env file is in the root directory, not inside src fold er. local : REACT_APP_API_KEY=AIXXXXzaSyX_ITiQXXXXXXXXxcXXXXXXXxU REACT_APP_AUTH_DOMAIN=XXXXX. Assumption: You have used Create React App (CRA) to bootstrap your It correctly picked up your variables when you named it . Also tried other option: "start": ". REACT_APP_KEY="TEST" npm start. local . I have tested a public variable NEXT_PUBLIC_ENV_LOCAL_VARIABLE = "Some public stuff" and it does not work when I test it on the browser. Production I am also trying to test for offline mode in any of the environments. env". js, which supports . log(process. REACT_APP_FOO (or just process itself) somehow. Modified 1 year About my . local Then, it may not work properly. Once I replaced the variables to real, raw config info, my app worked. So, Then copy the content from . env file at the root of your "create-react-app" project. 😮 To fix this, let's update the filenames of your . Updating package. API_KEY) i get undefiend. 0 added built-in support for configuration files targeting the three pre-defined environments (development, test, and production), and 1. json you will eventually have to add NODE_ENV=development at your start script. --env-file does. tried in the package. 0. ReactJS - '. development, . Inside the main constructor assign env to global. env file to be named . When I add the termination . env file and using the dotenv package to load environment variables. env file is keys. Because OP is clearly using Next. All my keys start with the prefix: REACT_APP_. overall i like the idea, but how does the env. if my env. Your project can consume variables declared in your environment as if they were declared locally in your JS files. env files, be sure to restart the local web server (npm run dev) to ensure that the updated variables take effect. E. pages/index. ENV variable beacause I'm adding this plugins to webpack dev config. local, . firebaseapp. jqhu ruspc nejykl pbmcv gwitl ypeoqxzh uro zopda widlps payg