Add code example for readme

This commit is contained in:
Sambo Chea 2021-03-24 14:22:56 +07:00
parent e388c716ff
commit 43909be36d

View File

@ -5,5 +5,32 @@
- [x] Support functions (getConfig, getConfigOrNull, hasConfigKey) - [x] Support functions (getConfig, getConfigOrNull, hasConfigKey)
- [x] Support nullsafety (dart 2.12.2+) - [x] Support nullsafety (dart 2.12.2+)
# Example
```dart
import 'package:configurable/dotenv_configuration_provider.dart';
import 'package:configurable/simple_configuration_provider.dart';
import 'package:configurable/system_config.dart';
void main() {
var key = 'app.name';
var value = 'CUBETIQ Solution';
// in-memory provider (built-in)
var simpleProvider = SimpleConfigurationProvider();
SystemConfig.setProvider(simpleProvider);
var result1 = SystemConfig.getOrNull(key, defaultValue: value);
// output: CUBETIQ Solution
print(result1);
// dotenv provider (from file .env)
var dotenvProvider = DotenvConfigurationProvider();
SystemConfig.setProvider(dotenvProvider);
var result2 = SystemConfig.getOrNull('HOME');
// output: user's home directory
print(result2);
}
```
# Contributors # Contributors
- Sambo Chea <sombochea@cubetiqs.com> - Sambo Chea <sombochea@cubetiqs.com>