@raedle/snack-runtime v0.0.2-alpha.5
Attention
This is not an official Expo package. It was published to update the Snack Runtime in PlayTorch to be compatible with Expo SDK 47.
Official repo: https://github.com/expo/snack/tree/main/runtime
Snack Runtime
The Snack runtime is an Expo App that loads and runs the Snack code from https://snack.expo.dev or from any other app using the snack-sdk. The Snack runtime exists in two flavours:
- A native runtime for Expo Go
- A web-player for running Snacks in the browser
Development
To start the runtime in development mode, install the dependencies and start it as a regular Expo app.
cd runtime
yarn install
expo start
Web player development
Start the runtime as a web-player by using expo start --web
or choosing Run in web browser
after running expo start
.
In the Snack website, select the localhost
option from the Expo version picker at the bottom. This will cause the development web-player to load within the "Web" iframe of http://snack.expo.test
.
Native runtime development
Use expo start
to start the runtime and scan the QR-code with your device.
This loads the runtime into Expo Go and displays another QR-code scanner. Now, use this QR-code scanner to load any Snack by scanning the QR-code from the My Device
tab. This will cause the Snack to load using the development runtime. By shaking your device and choosing "Reload" you can return to the runtime QR-code scanner.
Deployment
The runtime is auto-deployed to Staging upon mergin to main.
To deploy to production, run the deploy
dispatch trigger of the RuntimeProduction
Github Action workflow.
To manually deploy or learn more about deploying, see the Deployment guide.
Loading states
Visible state | Process state |
---|---|
Blank screen (web-only) | The web-player has not loaded index.html or the logo image (this may indicate a slow network connection or a hosting error) |
Snack logo (non blinking) | The runtime is being loaded |
Snack logo (blinking) | Runtime has loaded |
Update indicator Connecting... | Runtime is waiting for the snack code |
Update indicator Loading... | Code has been received and is being loaded for the first time |
Update indicator Updating... | New code has been received, runtime is applying updates |
Update indicators are only shown when the operation takes too long (after 3 seconds)
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