ServiceAccount.fromFile constructor
ServiceAccount.fromFile(
- File file
Creates a ServiceAccount using a service-account.json file.
If the transferred file does not exist, a FileNotFoundException is thrown.
If the transferred file does not have a Json extension a UnsupportedFileExtensionException is thrown. This is done to eliminate a possible source of error and to make sure that the passed file is really a Json file.
Implementation
factory ServiceAccount.fromFile(File file) {
// Make sure that the passed file is not null and the file exists.
if (file == null || !file.existsSync()) throw FileNotFoundException(file);
// Make sure that the transferred file is really a Json file.
if (!file.path.contains('.json')) {
throw UnsupportedFileExtensionException(file);
}
final json = file.readAsStringSync();
return ServiceAccount.fromString(json);
}