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docs(templates/readme.md): updated environment variable section to El… #583

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20 changes: 15 additions & 5 deletions template/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -627,9 +627,12 @@ Passing the variables to your Elm-code can be done via `flags`:
// index.js
import { Main } from './Main.elm';

Main.fullscreen({
environment: process.env.NODE_ENV,
apiKey: process.env.ELM_APP_API_KEY
Elm.Main.init({
node: document.getElementById('root'),
flags: {
environment: process.env.NODE_ENV,
apiKey: process.env.ELM_APP_API_KEY
}
});
```

Expand All @@ -639,10 +642,17 @@ type alias Flags = { apiKey : String, environment : String }

init : Flags -> ( Model, Cmd Msg )
init flags =
...
...


main : Program Flags Model Msg
main =
programWithFlags { init = init, ... }
Browser.element
{ view = view
, init = init
, update = update
, subscriptions = always Sub.none
}
```

Be aware that you cannot override `NODE_ENV` manually. See
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