This repository contains auto-generated client libraries for accessing Google APIs using dart. It has the usual dart package layout.
The first step is to obtain oauth2 access credentials. This can be done using the googleapis_auth package. Your application can access APIs on behalf of a user or using a service account.
After obtaining credentials, an API from the googleapis package can be accessed with an authenticated HTTP client.
The following is an example of a command line application which lists files in Google Drive by using a service account.
Create a pubspec.yaml file with the googleapis_auth and googleapis dependencies.
... dependencies: googleapis: any googleapis_auth: any
Create a service account in the Google Cloud Console and save the credential information. After that the Cloud Storage API can be accessed like this:
import 'package:googleapis/storage/v1.dart';
import 'package:googleapis_auth/auth_io.dart';
final Credentials = new ServiceAccountCredentials.fromJson(r'''
{
"private_key_id": ...,
"private_key": ...,
"client_email": ...,
"client_id": ...,
"type": "service_account"
}
''');
void main() {
clientViaServiceAccount(Credentials,
[StorageApi.DevstorageReadOnlyScope]).then((http) {
var storage = new StorageApi(http);
storage.buckets.list('dart-on-cloud').then((buckets) {
print("Received ${buckets.items.length} bucket names:");
for (var file in buckets.items) {
print(file.name);
}
});
});
}