Feature Flag & Remote Config Service

1$ curl 'https://api.flagsmith.com/api/v1/flags/' 
2-H 'X-Environment-Key: TijpMX6ajA7REC4bf5suYg' | jq
3
4[
5  {
6    "id": 131,
7    "feature": {
8      "id": 56,
9      "name": "kyc_button",
10      "created_date": "2018-06-28T13:30:09.983174Z",
11      "description": null,
12      "initial_value": null,
13      "default_enabled": true,
14      "type": "FLAG"
15    },
16    "feature_state_value": null,
17    "enabled": true,
18    "environment": 12,
19    "identity": null,
20    "feature_segment": null
21  }
22]

1import flagsmith from 'react-native-flagsmith';
2
3flagsmith.init({
4  environmentID: 'QjgYur4LQTwe5HpvbvhpzK',
5});
6
7const App = () => (
8    <>
9      {flagsmith.hasFeature("chat_widget") && <ChatWidget>}
10    </> 
11)

1const flagsmith = require("flagsmith-nodejs"); 
2
3flagsmith.init({
4  environmentID: 'QjgYur4LQTwe5HpvbvhpzK',
5});
6
7const featureEnabled = 
8   await flagsmith.hasFeature('chat_widget');

1implementation 'com.flagsmith:flagsmith-java-client:2.3'
2
3FlagsmithClient flagsmithClient = 
4         FlagsmithClient.newBuilder()
5         .setApiKey("QjgYur4LQTwe5HpvbvhpzK")
6         .build();
7
8if (flagsmithClient.hasFeatureFlag("chat_widget");) {
9  userInterface.chatWidgetEnable()
10} else {
11	return false;
12}

1pod 'BulletTrainClient', '~> 1.0'
2
3import BulletTrainClient
4
5func application(_ application: UIApplication, 
6  didFinishLaunchingWithOptions launchOptions: 
7  [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
8BulletTrain.shared.apiKey = "QjgYur4LQTwe5HpvbvhpzK"
9
10BulletTrain.shared.getFeatureFlags() { (result) in
11    switch result {
12    case .success(let flags):
13        for flag in flags {
14            let name = flag.feature.name
15            let value = flag.value
16            let enabled = flag.enabled
17            print(name, "= enabled:", enabled, "value:", value ?? "nil")
18        }
19}

1dependencies:
2  bullet_train:
3
4var bulletClient = 
5  BulletTrainClient(apiKey: 'QjgYur4LQTwe5HpvbvhpzK')
6
7bool featureEnabled = 
8  await bulletClient.hasFeatureFlag("chat_widget");
9if (featureEnabled) {
10    // run the code to execute enabled feature
11}
12
13var user = FeatureUser(identifier: 'bullet_train_sample_user');
14bool featureEnabled = a
15  wait bulletClient.hasFeatureFlag('chat_widget', user: user);
16if (featureEnabled) {
17    // run the code to execute enabled feature for given user
18}

1<dependency>
2  <groupId>com.flagsmith</groupId>
3  <artifactId>flagsmith-java-client</artifactId>
4  <version>2.3</version>
5</dependency>
6
7FlagsmithClient flagsmithClient = FlagsmithClient.newBuilder()
8                .setApiKey("QjgYur4LQTwe5HpvbvhpzK")
9                .build();
10
11if (flagsmithClient.hasFeatureFlag("chat_widget");) {
12  userInterface.chatWidgetEnable()
13} else {
14	return false;
15}

1$ pip install bullet-train
2
3from bullet_train import BulletTrain;
4
5bt = BulletTrain(environment_id="QjgYur4LQTwe5HpvbvhpzK")
6
7if bt.has_feature("header"):
8  if bt.feature_enabled("header"):
9    # Show my awesome cool new feature to the world
10
11value = bt.get_value("header", '<My User Id>')
12
13value = bt.get_value("header")
14
15bt.set_trait("accept-cookies", "true", "ben@flagsmith.com))
16bt.get_trait("accept-cookies", "ben@flagsmith.com"))

1$ gem install flagsmith
2
3require "flagsmith"
4
5flagsmith = Flagsmith.new("<<Your API KEY>>")
6
7if flagsmith.get_value("font_size")
8  #    Do something awesome with the font size
9end
10
11if flagsmith.feature_enabled?("does_not_exist")
12  #do something
13else
14  #do nothing, or something else
15end

1$ dotnet add package BulletTrain --version 2.1.4
2
3BulletTrainConfiguration configuration = new BulletTrainConfiguration()
4{
5    ApiUrl = "https://api.flagsmith.com/api/v1/",
6    EnvironmentKey = "QjgYur4LQTwe5HpvbvhpzK"
7};
8
9BulletTrainClient bulletClient = new BulletTrainClient(configuration);
10bool featureEnabled = await BulletTrainClient.instance.HasFeatureFlag("chat_widget");
11if (featureEnabled) {
12    // run the code to execute enabled feature
13} else {
14    // run the code if feature switched off
15}

1$ go get github.com/flagsmith/flagsmith-go-client
2
3import (
4  "github.com/flagsmith/flagsmith-go-client"
5)
6
7bt := bullettrain.DefaultBulletTrainClient("QjgYur4LQTwe5HpvbvhpzK")
8
9enabled, err := bt.FeatureEnabled("chat_widget")
10if err != nil {
11    log.Fatal(err)
12} else {
13    if (enabled) {
14        fmt.Printf("Feature enabled")
15    }
16}

1# Cargo.toml
2bullettrain = "0.1.0"
3
4let bt = bullettrain::Client::new("QjgYur4LQTwe5HpvbvhpzK");
5
6if bt.feature_enabled("chat_widget")? {
7    println!("Feature enabled");
8}
9
10if let Some(Value::String(s)) = bt.get_value("cart_abundant_notification_ab_test")? {
11    println!("{}", s);
12}

1composer require bullettrainhq/bullet-train-php-client
2
3use BulletTrain\BulletTrain;
4
5$bt = new BulletTrain('QjgYur4LQTwe5HpvbvhpzK');
6
7$flags = $bt->getFlags();
8foreach ($flags as &$value) {
9    print_r($value);
10}