b06942d63b
This moves our depedencies into a plain file that can be read and updated by tooling. While the current tooling is not particularly better than just using gradle-versions-plugin, it should put us on better footing. gradle-versions-plugin is actually pretty nice, but will be incompatible with Gradle 8, so we need to wait a bit to see what the future holds. Left libraries as an alias for libs to reduce the commit size and make it easier to revert if we don't end up liking this approach. We're using Gradle 7.3.3 where it was an incubating fetaure. But in Gradle 7.4 is became stable. |
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| .gitignore | ||
| README.md | ||
| build.gradle | ||
| proguard-rules.pro | ||
README.md
gRPC Cronet Transport
EXPERIMENTAL: gRPC's Cronet transport is an experimental API. Its stability depends on upstream Cronet's implementation, which involves some experimental features.
This code enables using the Chromium networking stack (Cronet) as the transport layer for gRPC on Android. This lets your Android app make RPCs using the same networking stack as used in the Chrome browser.
Some advantages of using Cronet with gRPC:
- Bundles an OpenSSL implementation, enabling TLS connections even on older versions of Android without additional configuration
- Robust to Android network connectivity changes
- Support for QUIC
Since gRPC's 1.24 release, the grpc-cronet package provides access to the
CronetChannelBuilder class. Cronet jars are available on Google's Maven repository.
See the example app at https://github.com/GoogleChrome/cronet-sample/blob/master/README.md.
Example usage:
In your app module's build.gradle file, include a dependency on both grpc-cronet and the
Google Play Services Client Library for Cronet
implementation 'io.grpc:grpc-cronet:1.47.0'
implementation 'com.google.android.gms:play-services-cronet:16.0.0'
In cases where Cronet cannot be loaded from Google Play services, there is a less performant
implementation of Cronet's API that can be used. Depend on org.chromium.net:cronet-fallback
to use this fall-back implementation.
You will also need permission to access the device's network state in your
AndroidManifest.xml:
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
Once the above steps are completed, you can create a gRPC Cronet channel as follows:
import io.grpc.cronet.CronetChannelBuilder;
import org.chromium.net.ExperimentalCronetEngine;
...
ExperimentalCronetEngine engine =
new ExperimentalCronetEngine.Builder(context /* Android Context */).build();
ManagedChannel channel = CronetChannelBuilder.forAddress("localhost", 8080, engine).build();