Feature/different env config files #1343 #1344

tuchk4 · 2017-01-03T11:24:03Z

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tuchk4 · 2017-02-13T10:13:31Z

@gaearon What do you think about multiple .env support?
If you are OK with this I will provide tests for this feature according to new e2e test (kitchensink).

gaearon · 2017-02-24T17:33:12Z

I'm really conflicted about this: #1343 (comment).

Can you explain why they recommend against it, and why you think their recommendation is incorrect in our case?

tuchk4 · 2017-02-24T18:24:05Z

I think this is ok for our case at least because that we use .env config for frontend app.

I mean that console.log(process.env.REACT_APP_X); will be replaced to console.log('%value_of_REACT_APP_X%'); because browser has no process or env.

So it is not possible to set env variables for build.js. But you can build app bundle according to needed env.

Should I commit my .env file? - No

Anyway this depends on developers. Current PR should not answer on this question because CRA started to support .env earlier.
From my point of view - it is OK for frontend application. Such env configs very useful for example for:

Public API Tokens (Google Auth, Maps, Social Networks etc)
Server API host / prefix / version

And this is public information so no problems with security.

Passwords, Connection Strings etc. mostly for backend applications. Of course app can be isomorphic but it is architecture depends on its developers and CRA has nothing to do with.

Should I have multiple .env files? - No

docs also says that having a "main" .env file and an "environment" .env configs like (.env.test / .env.staging) is OK.

Here is additional example from dotenv-rails docs - what .env* configs could be used:

.env - The Original®
.env.development, .env.test, .env.production - Environment-specific settings.
.env.local - Local overrides. This file is loaded for all environments except test.
.env.development.local, .env.test.local, .env.production.local - Local overrides of environment-specific settings.

gaearon · 2017-02-24T18:28:09Z

Since there's a precedent, I'm happy to support the exact equivalent of https://github.com/bkeepers/dotenv#what-other-env-files-can-i-use.

tuchk4 · 2017-02-24T18:32:51Z

Sure, I will update PR in nearest days.

tuchk4 · 2017-02-28T16:39:31Z

Update PR. Seems everything works correctly but I want to check it one more time.

Update kitchensink test integration/env.test.js
Update docs (README.md) but seems I have problems with docs writing :)
There is a new file config/loadEnv.js. Before I placed it to utils but utils are not available after eject. So I just moved it to config. Maybe it is better find another way to load env configs.

What .env* files are used?

.env - Default
.env.development, .env.test, .env.production - Environment-specific settings.
.env.local - Local overrides. This file is loaded for all environments except test.
.env.development.local, .env.test.local, .env.production.local - Local overrides of environment-specific settings.

Files priority (file is skipped if does not exist):

npm test - .env.test.local, env.test, .env.local, .env
npm run build - .env.production.local, env.production, .env.local, .env
npm start - .env.development.local, env.development, .env.local, .env

Priority from left to right.

gaearon · 2017-02-28T17:05:39Z

I temporarily canceled the Travis build because I'm trying to get 0.9.x branch to run e2e tests asap so that we can release a few bugfixes. Please don't commit for a few hours 😛

I really want to get this for 0.10 so appreciate the work you're doing.

Timer · 2017-03-02T18:19:31Z

packages/react-scripts/fixtures/kitchensink/integration/env.test.js

@@ -6,7 +6,15 @@ describe('Integration', () => {
    it('file env variables', async () => {
      const doc = await initDOM('file-env-variables')

-      expect(doc.getElementById('feature-file-env-variables').textContent).to.equal('fromtheenvfile.')


@EnoahNetzach was there a reason you included the periods? I don't want to remove them if they were there for a reason.

You mean in the expect?
I usually insert them as an extra caution to ensure that the expected string is placed exactly where I want to.

Is it extremely necessary? No :P

(wow, so much "ex")

The ('fromtheenvfile.'), note the period at the end. And put there here: https://github.com/facebookincubator/create-react-app/pull/1344/files#diff-5bf0cb512e071c1717dd16f597def9caL4

That was a check that variables from .env are available in the app.

I removed this line because of added a bit more checks below that covers previous case

Seems that dot makes no sens.
btw. going to change env variables names and values at tests to make code more readable

gaearon · 2017-03-05T14:20:22Z

@tuchk4 Sorry for the trouble. We merged a long-submitted PR that better modularized the scripts between the files, so that user’s start.js is less messy. Can you please rebase your PR on that? Is there more work to be done here except updating? Can’t wait to get this 😉

EnoahNetzach · 2017-03-05T14:44:22Z

@Timer this CI failure doesn't look good.. 😟

tuchk4 · 2017-03-05T14:52:08Z

@gaearon sry for delay. Will update PR today.
@EnoahNetzach There is strange error

grep -q 'The app is running at:' /tmp/tmp.i8HQVtET58
sleep 1
true

when run local everything is ok. Hope after rebase test will be ok.

Timer · 2017-03-05T17:28:27Z

Yikes, @EnoahNetzach -- you're right. Unfortunately we had to switch to this for AppVeyor, see #1654.

Mind submitting a PR that temporarily limits this to something reasonable and errors out after the limit, e.g. 30 seconds?

tuchk4 · 2017-03-06T07:26:35Z

Can somebody check CI?

Command exited with status 1: npm install

gaearon · 2017-03-06T14:36:52Z

Should be fixed after rebase. I broke it earlier but fixed today.

FKSI · 2017-04-21T07:56:51Z

I'd love to have this feature, what's blocking the merge? :)

tuchk4 · 2017-04-24T14:29:57Z

@FKSI probably will be released in v0.10.0

cc @gaearon

FKSI · 2017-04-26T06:33:56Z

Meanwhile I used https://medium.com/@tacomanator/environments-with-create-react-app-7b645312c09d

squarism · 2017-04-28T18:48:16Z

So ... dotenv FAQ conflicts with this. 🤔 I don't even know what the right answer is but I'm very interested in this feature instead of trying to roll this my own by doing conditionals on process.env.NODE_ENV.

Is this PR just moving forward past the dotenv package FAQ advice? I'm just kind of confused. Checking in a .env is a nice way to set dev defaults for a repo. If I had a build server / CI then I could inject ENV values and ship. If I wanted to ship from my laptop I could have an npm task that imports the right file as tacomanator does here.

"scripts": {
  "build": "sh -ac '. .env.${REACT_APP_ENV}; react-scripts build'",
  "build:staging": "REACT_APP_ENV=staging npm run build",
  "build:production": "REACT_APP_ENV=production npm run build",
  ...
}

I guess this snippet is how it would work currently without this PR, and this PR does something very similar by convention (file order as described by @tuchk4)? Very cool regardless. 🌻

tuchk4 · 2017-04-28T19:05:27Z

I guess this snippet is how it would work currently without this PR,

Yeah, but this is not cross platform :(

gaearon · 2017-05-11T17:30:19Z

Yea, I guess we just disagree with their FAQ because in client side code you are leaking any values into the client anyway. So you can't use it for anything sensitive.

Maybe there's a clearer way to explain this though.

* Remove .env in default template * Use just one entry in the paths * Unify env.js and loadEnv.js

gaearon · 2017-05-11T18:00:38Z

I slightly changed how it's implemented, but this looks good. Let's wait for CI to pass and get it in.

gaearon · 2017-05-16T09:19:31Z

Please help beta test the new version that includes this change!
#2172

kmalakoff · 2017-05-20T17:27:56Z

@gaearon I just read this article and supporting multiple environment files is great, but was wondering why you are following a path to bake environment into compiled application?

Because create-react-app does not support a single build that can be configured from the outside via environment variables at runtime, I typically do not recommend it for my clients who follow 12 factor app principles with Docker.

Wouldn't a better approach be to provide a mechanism of runtime injection so if we build a create-react-app inside a Docker container, we can 1) use the same container across environments rather than have to build a separate container per environment and 2) support more dynamic environment-variable based configurations (eg. defer environment variables to the container scheduling phase)?

gaearon · 2017-05-20T17:34:00Z

Happy to discuss any proposals in a separate issue!

It's important though to note that CRA always produces static bundles, and they are expected to work in any environment regardless of server, container, etc.

* support different env configs. * fomrat code * Hide doc * Slightly rework the PR * Remove .env in default template * Use just one entry in the paths * Unify env.js and loadEnv.js * Oops, forgot these folks

@nicinabox

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(facebook#1772) * Print error messages for editor integration (facebook#2150) * Add custom eslint formatter (facebook#2138) * Add custom eslint formatter * Add formatter docs * Update formatter docs * Slightly tweak it * Update README.md * Fix CI * Tweak error and warning output (facebook#2152) * Tweak error and warning output * Add a colon * Focus on line in eslint messages * Fix CI * [Internal] Warn for missing brackets (facebook#2151) * Warn for missing braces * Overlay, too * Allow custom proxies in development (facebook#1790) * Change proxy handling to allow multiple proxies to be specified in package.json. * Up webpack-dev-server to 2.4.2 Webpack Dev Server version 2.4.2 handles the external websocket upgrade for all proxies * Fix the listen() call * Switch to correct default host * Remove promises and extract to react-dev-utils * oops * Add support for IPv6 hosts * Prefer localhost as an address (facebook#2154) * Show network address on start (facebook#2155) * Show network address on start * Tweak visual representation * Bump webpack packages * Internal Webpack paths should not be clickable * Make error/warning output more useful (facebook#2161) * Fix lint * Fix CI * Update to Jest 19 (facebook#1614) * Upgrade to Jest 19 * Use testMatch * Correct version * Put console.stack() behind a react vendor prefix (facebook#2164) Matches what we did in facebook/react#9679 * Unpin Yarn (facebook#2124) * Unpin Yarn * Try 0.24.2 * Update e2e-simple.sh * ESLint Config: Upgrade eslint-plugin-jsx-a11y and activate more rules. (facebook#2163) * ESLint Config: Upgrade eslint-plugin-jsx-a11y and activate more rules. * Try to fix Lerna * Update README.md * Remove html-has-lang * Update README.md * Removing extra `eslint` rules (facebook#2064) Removing a stylistic lint rule * Support hoisting react-scripts and add require.resolve() to loaders (facebook#2166) * Support hoisting react-scripts * require.resolve() loaders and configs This makes it so that loaders and configs are resolved relative to the config rather than to the app. This seems to make more sense to me. * Support node scripts in BROWSER (facebook#1590) * Support node scripts in BROWSER Modify OpenBrowser.js to run node scripts specified with the BROWSER environment variable . If the value of the BROWSER environment variable ends with '.js' a child process is spawned to execute the script with node.js. Any arguments passed to npm start are also passed to this script, as well as the url where the app is served. The command executed in the child process is: node <pathToScript> [OPTIONS] <url> Update User Guide. * Tweak code style * Pin dep * Comment out 0.10 docs * Enable CSS sourcemaps in production (facebook#2168) * Adding plugin postcss-flexbugs-fixes and flexbox: 'no-2009' to Autoprefixer (facebook#1771) * Adding postcss-flexbugs-fixes Using postcss-flexbugs-fixes to fix all flexbug's issues. * Adding flexbox: 'no-2009' to Autoprefixer It will add flexbox prefixes only for final and IE versions of specification. * Try to fix CI * Try again * Only run tests in <rootDir>/src (facebook#544) (facebook#1808) * Only run tests in <rootDir>/src (facebook#544) * updates Jest to 19.0.2 * removes testPathIgnorePatterns from jest config * adds testMatch to jest config to only match files in src * Bump babel-jest to 19.0.0 to match jest 19.0.2 * Bump dependencies (facebook#2170) * Bump dependencies * Bump CSS deps * Somehow I missed dotenv * Bump ESLint deps * Tweak ESLint rules * react-dev-utils/openBrowser now supports urls with 2+ params (facebook#2076) * react-dev-utils/openBrowser now supports urls with 2+ params Fixed facebook#2047 * react-dev-utils/openBrowser: encode url before open the browser * Jest 20 (facebook#2171) * Make coverage and snapshot Jest options overridable in package.json (facebook#1830) * Override Jest config collectCoverageFrom with package.json * Protect against overriding other options * Better error message * Create Jest config early on eject * Tweak wording * Dry it up * Bump versions * Resolve regenerator runtime relative to react-scripts (facebook#2175) * Fix Flow hopefully * Disable require.ensure() warning (facebook#2177) * Reenable require.ensure() * Tweak colors for better contrast on Windows (facebook#2180) * Handle errors from port detector (facebook#2182) * Tweak lint rules (facebook#2186) * Ignore Moment.js locales by default (facebook#2187) * Ignore Moment.js locales by default * Update README.md * Disable Yarn on CI temporarily * Add module scope plugin (facebook#2189) * Add module scope plugin * Oops * Add comments * Check windows seps too * More descriptive error * Document it * Webpack config typo (facebook#2193) * Webpack config typo * Webpack config more typo * PWA-ification, via SWPrecacheWebpackPlugin + manifest.json (facebook#1728) * sw-precache-webpack-plugin, SW registration, manifest.json * Documentation + a few SW tweaks. * Added an unregister method, too, just in case. * More info for the READMEs. * Add minify to SWPrecacheWebpackPlugin config * Fix SWPrecacheWebpackPlugin typo * Fix file references in READMEmd * Add instructions for testing service-worker locally * Review feedback * Some additional PWA metadata * Use sw-precache-webpack-plugin v0.9.1 for node >=4.0.0 support * Review feedback. * Add manifest.json context in a comment. * Fix typo * Downgrade to sw-precache-webpack-plugin 0.9.1 * Hide changes in README until 1.0 * Hide changes in User Guide until 1.0 * Hide more docs * Tidy up some build logs (facebook#2197) * Bump Jest to 20.0.3 (facebook#2196) * Test module scoping (facebook#2198) * Correct readme * Add tests * Update README.md * Disable Uglify reduce_vars (facebook#2200) * Tweaking error overlay styles (facebook#2201) * Tweaked overlay styles * Tweaked pre-style * Clicked to background overlay dismiss * Tidied up styles tobe more mobile Safari friendly * Re-enabled pre-wrap * Margin fixes * Base font-size 10 -> 11px * Error overlay is full-screen now based on feedback * Make "N errors on the page" visible again * Fix bottom margin of frame location and lack of tab nav * Add tooltip to close button * Bring compile error styles closer to runtime overlay * s/when/if/ * Refactor and improve build output (facebook#2202) * Tweaked error overlay styles (pt2) (facebook#2208) * Fixed several of the issues and nits from PR: * Moved margin between header and file name to header, so when content was scrolled, the header would remain more separate * Made build-time and runtime overlays better match * Secondary error <pre> style now uses yellow bg instead of red * 'Scrollable Header' (see above comment to why this is necessary) but I did increase the max-height from 35% to 50%. * Fixed header and 'X' button vertical alignment * Temporary stack margin fix * Move "N errors" to the top * Move more logic from react-scripts to react-dev-utils (facebook#2209) * Show warnings for builds * Move WebpackDevServer helpers into react-dev-utils * Fix vertical alignment of close button * Cleaned up next/prev error arrow styles; arrows wrap around when clicked now (facebook#2210) * Add temporary support for Node 4.x to global CLI (facebook#2214) * Replace text-align: start with left to fix Edge (facebook#2215) * ES6 syntax (facebook#2213) * Move error overlay middleware (facebook#2216) * "rule keywords" => "keywords" * Improve interaction between compile and runtime overlays (facebook#2219) * Better document PWA stuff * Enable 1.0 docs (facebook#2220) * Uncomment merged PRs * Switch to br * Update some webpack links * Add a little about section for PWA * oops * fast on subsequent visits * Add manual proxy config instructions * hint package.json * Change to js for comments * Tune wording * Add documentation about using code splitting (facebook#1801) * Add documentation about using code splitting * Revise docs a bit * Update README.md * Update README.md * Update README.md * Swap changelogs (facebook#2222) * Swap changelogs * Update and rename CHANGELOG.md to CHANGELOG-0.x.md * Update and rename CHANGELOG-1.x.md to CHANGELOG.md * Update CHANGELOG.md * Publish - [email protected] - [email protected] - [email protected] - [email protected] - [email protected] - [email protected] * Update CHANGELOG.md * March -> May * Fix shortcut handling in react-error-overlay (facebook#2238) * Add explicit package dependence (facebook#2243) Closes facebook#2232 * Fix read of .env variables (facebook#2242) * Gracefully shut down the server on signals (facebook#2246) * Shame on me * Correct docs on which .env.* files are supported. (facebook#2247) * Correct which .env. files are referenced in docs * Highlight this is not available until 1.0.0 * Formatting * Update README.md * Update README.md * Hide React Storybook from the User Guide while it's incompatible (facebook#2252) * Hide React Storybook from the User Guide while it's incompatible * Update README.md * Show customized build path for serve instruction (facebook#2229) * Show customized build path for serve instruction * Remove cyan * Ignore .env.local in test environment (facebook#2250) * add noscript to template's index.html (facebook#2224) * add noscript to template's index.html * Tweak message * Work around Windows path issue in SWPrecacheWebpackPlugin (facebook#2255) * Turn off operator-assignment stylistic rule (facebook#2256) * update readme with example of include path (facebook#2258) * update readme with example of include path * Update README.md * update reference with new name (facebook#2259) s/adding-images-and-fonts/adding-images-fonts-and-files/ * Additional fix to service worker config for "homepage" field (facebook#2262) * Always resolve NODE_PATH (facebook#2261) * Always resolve NODE_PATH * Update env.js * Fix a bug on empty NODE_PATH (facebook#2264) * Shut down server silently, as it is too noisy * Add changelog for 1.0.1 (facebook#2266) * Publish - [email protected] - [email protected] - [email protected] - [email protected] * Fix missing dependency (facebook#2269) * Adding missing dependency * Pinning text-table dependency * Describe build in less fluffy terms * Update README.md * Update README.md * Update CHANGELOG.md * Add WSL support to launchEditor utility (facebook#2282) * Only enable host check if you use proxy, and add a way to opt out of it (facebook#2288) * Disable host check if you don't use proxy * Add a way to opt out and document it * Ejecting should ensure you have clean git status (facebook#2221) * Ejecting should ensure you have clean git status * Rename function * Style * Minor changes - extract function - exclude error output for missing git - more descriptive error message - no need to mutate answer - fix answering "no" to return 0 exit code * Add missing license headers * Wrap console calls into a check (facebook#2290) * Provide a no-op SW that will be served by the dev environment. (facebook#2276) * Provide a no-op SW that will be served by the dev environment. * Hide no-op service worker from user * Remove unnecessary dependencies(facebook#751) (facebook#2283) * Remove unnecessary dependencies(facebook#751) * Sort alphabetically * Add changelog for 1.0.2 (facebook#2291) * Publish - [email protected] - [email protected] - [email protected] * Roll back to an older version of case-sensitive-paths-webpack-plugin (facebook#2314) * Wrap console calls into a check (facebook#2301) * Wrap console calls into a check * Add another check * Remove `flowtype/require-valid-file-annotation` temporarily. (facebook#2311) Until this issue (gajus/eslint-plugin-flowtype#165) is fixed we're disabling `flowtype/require-valid-file-annotation`. * Ensure address is private (facebook#2297) * Ensure address is private Resolves facebook#2296 * adjust rule * Update WebpackDevServerUtils.js * Changelog for 1.0.3 (facebook#2315) * Publish - [email protected] - [email protected] - [email protected] - [email protected] * Remove tarec from README (facebook#2323) I no longer support this package. Create-react-app is so great I can no longer call tarec a credible alternative 😄 * 1.0.4 changelog * Publish - [email protected] - [email protected] * Remove connect-history-api-fallback and cross-spawn dependencies from react-scripts (facebook#751) (facebook#2320) * Allow declaring variables before use in a scope above (facebook#2325) * Limit console warnings to 5 files at most (facebook#2327) * Files in public/ folder should not be requested through proxy (facebook#2326) * Add changelog for 1.0.5 (facebook#2329) * Add "Migrating" section * Publish - [email protected] - [email protected] - [email protected] - [email protected] * Add missing files to README (facebook#2334) * add missing files * Update README.md * Update CHANGELOG.md * Don't resolve localhost if on network (facebook#2332) * Don't resolve if on network * Update WebpackDevServerUtils.js * Resolve flow errors in eslint JSX a11y (facebook#2346) * Upgraded eslint-plugin-jsx-a11y to 5.0.3 to take advantage of d70ac7d7975819e7a52b85465ec67a0d93eb962a * Add navigateFallbackWhitelist /__* to SW Precache config (facebook#2347) * Add navigateFallbackWhitelist /__* to SW Precache config * Add comments * Add changelog for 1.0.6 (facebook#2348) * Publish - [email protected] - [email protected] - [email protected] - [email protected] * Update webpack to v2.6.0 in react-scripts (facebook#2349) * Fix broken links (facebook#2350) * Print file sizes with correct build folder path. (facebook#2361) * Print file sizes with correct build folder path. * Just use the print the basename. * Update README.md for `now` deployments (facebook#2372) Simplified steps for deploying app to `now` as a static site. No need to `serve` script in `package.json` file. As of May 15, 2017, all static deployments on `now` are free and unlimited. * Removed the overriding of reduce_vars to false since webpack v2.6.0 included the fixed for Uglify bug (facebook#2351) * Disable comparisons feature in uglify compression in production (facebook#2379) * Disable a micro-option in uglify that appears to be buggy See facebook#2376 * wrong plugin * Add a comment * Consistently set environment variables (facebook#2382) * Update webpack to 2.6.1 (facebook#2383) * Add changelog for 1.0.7 (facebook#2384) * Publish - [email protected] - [email protected] - [email protected] * Bump beta version * Fix deploy script env vars * Bump react-scripts beta version * Fix Sass transforms and module mapping in the Jest config * Update babel-preset-trunkclub beta version; add code coverage to tests * Update Flow dependency, remove old devDeps, bump beta version * Update the v8 upgrade docs * Update Jest config * Run prettier on build-module script before merging TC upstream * Update upgrade docs * Release v9.0.0

tuchk4 changed the title ~~Feature/different config files 1343~~ Feature/different config files #1343 Jan 3, 2017

facebook-github-bot added the CLA Signed label Jan 3, 2017

tuchk4 changed the title ~~Feature/different config files #1343~~ Feature/different env config files #1343 Jan 3, 2017

tuchk4 force-pushed the feature/different-config-files-1343 branch from ad1241b to 6bb2c7c Compare February 13, 2017 10:10

gaearon added this to the 0.10.0 milestone Feb 24, 2017

tuchk4 force-pushed the feature/different-config-files-1343 branch from 6bb2c7c to 8757be0 Compare February 28, 2017 16:32

gaearon added the tag: new feature label Feb 28, 2017

gaearon mentioned this pull request Feb 28, 2017

Embedding CRA created SPA into a bigger CMS #1678

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Timer reviewed Mar 2, 2017

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gaearon mentioned this pull request Mar 5, 2017

Absolute path guide #1712

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tuchk4 force-pushed the feature/different-config-files-1343 branch 3 times, most recently from ab34a69 to b9ab8bd Compare March 6, 2017 00:44

tuchk4 force-pushed the feature/different-config-files-1343 branch 2 times, most recently from 6e1f3f9 to 651272f Compare March 6, 2017 21:27

tuchk4 added 2 commits March 15, 2017 16:07

support different env configs.

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fomrat code

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tuchk4 force-pushed the feature/different-config-files-1343 branch from 01de31d to dbdbfb1 Compare March 15, 2017 14:07

Timer mentioned this pull request May 5, 2017

1.0.0 Roadmap #2089

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gaearon and others added 2 commits May 11, 2017 18:31

Hide doc

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Slightly rework the PR

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* Remove .env in default template * Use just one entry in the paths * Unify env.js and loadEnv.js

Oops, forgot these folks

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gaearon merged commit 80a7fc3 into facebook:master May 12, 2017

This was referenced May 12, 2017

Feature request - Support different env configs #1343

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Public Beta Testing of [email protected] #2172

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jaredpalmer mentioned this pull request May 19, 2017

Environment-specific and local .env files jaredpalmer/razzle#269

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kmalakoff mentioned this pull request May 24, 2017

Runtime environment variables #2353

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Timer mentioned this pull request Jun 18, 2017

.env in source control ? #2560

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bookcasey mentioned this pull request Nov 29, 2017

update react-scripts Thinkful-Ed/react-jwt-auth#4

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gaearon mentioned this pull request Jan 18, 2018

A way to define custom environment variables #102

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tuchk4 deleted the feature/different-config-files-1343 branch January 21, 2021 23:20

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