Browser SDK

npm install --save @splitsoftware/splitio-browserjs

<!-- Choose the preferred script tag, you don't need both -->

<!-- Slim build, smaller footprint -->
<script src="//cdn.split.io/sdk/split-browser-0.15.0.min.js"></script>

<!-- Full build, bigger footprint but all modules are exposed and usable,
including fetch polyfill and localhost mode -->
<script src="//cdn.split.io/sdk/split-browser-0.15.0.full.min.js"></script>

// Instantiate the SDK. CDN exposes a splitio object globally with a reference to
// the SplitFactory (as well as any extra modules)

var factory = splitio.SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    // key represents your internal user id, or the account id that
    // the user belongs to.
    // This could also be a cookie you generate for anonymous users
    key: 'key'
  }
});

// And get the client instance you'll use
var client = factory.client();

var SplitFactory = require('@splitsoftware/splitio-browserjs').SplitFactory;

// Or you can import the SplitFactory from the full entry point,
var SplitFactory = require('@splitsoftware/splitio-browserjs/full').SplitFactory;

// Instantiate the SDK
var factory = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    // key represents your internal user id, or the account id that
    // the user belongs to.
    // This could also be a cookie you generate for anonymous users
    key: 'key'
  }
});

// And get the client instance you'll use
var client = factory.client();

import { SplitFactory } from '@splitsoftware/splitio-browserjs';

// Or you can import the SplitFactory from the full entry point,
import { SplitFactory } from '@splitsoftware/splitio-browserjs/full';

// Instantiate the SDK
const factory: SplitIO.ISDK = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    // key represents your internal user id, or the account id that
    // the user belongs to.
    // This could also be a cookie you generate for anonymous users
    key: 'key'
  }
});

// And get the client instance you'll use
const client: SplitIO.IClient = factory.client();

client.on(client.Event.SDK_READY, function() {
  var treatment = client.getTreatment('FEATURE_FLAG_NAME');

  if (treatment == "on") {
      // insert code here to show on treatment
  } else if (treatment == "off") {
      // insert code here to show off treatment
  } else {
      // insert your control treatment code here
  }
});

client.on(client.Event.SDK_READY, function() {
  const treatment: SplitIO.Treatment = client.getTreatment('FEATURE_FLAG_NAME');

  if (treatment == "on") {
      // insert code here to show on treatment
  } else if (treatment == "off") {
      // insert code here to show off treatment
  } else {
      // insert your control treatment code here
  }
});

var attributes = {
  // date attributes are handled as `millis since epoch`
  registered_date: new Date('YYYY-MM-DDTHH:mm:ss.sssZ').getTime(),
  // this string will be compared against a list called `plan_type`
  plan_type: 'growth',
  // this number will be compared agains a const value called `deal_size`
  deal_size: 10000,
  // this boolean will be compared against a const value called `paying_customer`
  paying_customer: true,
  // this array will be compared against a set called `permissions`
  permissions: ["read", "write"]
};

var treatment = client.getTreatment('FEATURE_FLAG_NAME', attributes);

if (treatment === 'on') {
  // insert on code here
} else if (treatment === 'off') {
  // insert off code here
} else {
  // insert control code here
}

const attributes: SplitIO.Attributes = {
  // date attributes are handled as `millis since epoch`
  registered_date: new Date('YYYY-MM-DDTHH:mm:ss.sssZ').getTime(),
  // this string will be compared against a list called `plan_type`
  plan_type: 'growth',
  // this number will be compared agains a const value called `deal_size`
  deal_size: 10000,
  // this array will be compared against a set called `permissions`
  permissions: [‘read’, ‘write’]
};

const treatment: SplitIO.Treatment = client.getTreatment('FEATURE_FLAG_NAME', attributes);

if (treatment === 'on') {
  // insert on code here
} else if (treatment === 'off') {
  // insert off code here
} else {
  // insert control code here
}

var attributes = {
  registered_date: new Date('YYYY-MM-DDTHH:mm:ss.sssZ').getTime(),
  plan_type: 'growth',
  deal_size: 10000,
  paying_customer: true,
  permissions: ["read", "write"]
};

// set attributes returns true unless there is an issue storing it
var result = client.setAttributes(attributes);

// set one attribute and returns true unless there is an issue storing it
var result = client.setAttribute('paying_customer', false);

// Get an attribute
var plan_type = client.getAttribute('plan_type');

// Get all attributes
var stored_attributes = client.getAttributes();

// Remove an attribute
var result = client.removeAttribute('permissions');

// Remove all attributes
var result = client.clearAttributes();

// Getting treatments by feature flag names
var flagNames = ['FEATURE_FLAG_NAME_1', 'FEATURE_FLAG_NAME_2'];
var treatments = client.getTreatments(flagNames);

// Getting treatments by set
treatments = client.getTreatmentsByFlagSet('frontend');

// Getting treatments for the union of multiple sets
var flagSets = ['frontend', 'client_side'];
treatments = client.getTreatmentsByFlagSets(flagSets);

// treatments have the following form:
// {
//   FEATURE_FLAG_NAME_1: 'on',
//   FEATURE_FLAG_NAME_2: 'visa'
// }

// Getting treatments by feature flag names
const flagNames = ['FEATURE_FLAG_NAME_1', 'FEATURE_FLAG_NAME_2'];
let treatments: SplitIO.Treatments = client.getTreatments(flagNames);

// Getting treatments by set
treatments = client.getTreatmentsByFlagSet('frontend');

// Getting treatments for the union of multiple sets
const flagSets = ['frontend', 'client_side'];
treatments = client.getTreatmentsByFlagSets(flagSets);

// treatments have the following form:
// {
//   FEATURE_FLAG_NAME_1: 'on',
//   FEATURE_FLAG_NAME_2: 'visa'
// }

var TreatmentResult = {
  String treatment;
  String config; // or null if there is no config for the treatment
}

type TreatmentResult = {
  treatment: string,
  config: string | null
};

var treatmentResult = client.getTreatmentWithConfig('FEATURE_FLAG_NAME', attributes);
var configs = JSON.parse(treatmentResult.config);
var treatment = treatmentResult.treatment;

if (treatment === 'on') {
  // insert on code here and use configs here as necessary
} else if (treatment === 'off') {
  // insert off code here and use configs here as necessary
} else {
  // insert control code here
}

const treatmentResult: SplitIO.TreatmentWithConfig = client.getTreatmentWithConfig('FEATURE_FLAG_NAME', attributes);
const configs = JSON.parse(treatmentResult.config);
const treatment = treatmentResult.treatment;

if (treatment === 'on') {
  // insert on code here and use configs here as necessary
} else if (treatment === 'off') {
  // insert off code here and use configs here as necessary
} else {
  // insert control code here
}

// Getting treatments by feature flag names
var flagNames = ['FEATURE_FLAG_NAME_1', 'FEATURE_FLAG_NAME_2'];
var treatmentResults = client.getTreatmentsWithConfig(flagNames);

// Getting treatments by set
treatmentResults = client.getTreatmentsWithConfigByFlagSet('frontend');

// Getting treatments for the union of multiple sets
var flagSets = ['frontend', 'client_side'];
treatmentResults = client.getTreatmentsWithConfigByFlagSets(flagSets);

// treatmentResults will have the following form:
// {
//   FEATURE_FLAG_NAME_1: {treatment: 'on',
//                  config: "{ 'color' : 'red'}}",
//   FEATURE_FLAG_NAME_2: {treatment: 'v2',
//                  config: "{ 'copy' : 'better copy'}}",
// }

// Getting treatments by feature flag names
const flagNames = ['FEATURE_FLAG_NAME_1', 'FEATURE_FLAG_NAME_2'];
let treatmentResults: SplitIO.TreatmentsWithConfig = client.getTreatmentsWithConfig(flagNames);

// Getting treatments by set
treatmentResults = client.getTreatmentsWithConfigByFlagSet('frontend');

// Getting treatments for the union of multiple sets
const flagSets = ['frontend', 'client_side'];
treatmentResults = client.getTreatmentsWithConfigByFlagSets(flagSets);

// treatmentResults will have the following form:
// {
//   FEATURE_FLAG_NAME_1: {treatment: 'on',
//                  config: "{ 'color' : 'red'}}",
//   FEATURE_FLAG_NAME_2: {treatment: 'v2',
//                  config: "{ 'copy' : 'better copy'}}",
// }

// You can just destroy and remove the variable reference and move on:
user_client.destroy();
user_client = null;

// destroy() returns a promise, so if you want to, for example,
// navigate to another page without losing impressions, you
// can do that once the promise resolves.
user_client.destroy().then(function() {
  user_client = null;

  document.location.replace('another_page');
});

// The expected parameters are:
var queued = client.track('TRAFFIC_TYPE', 'EVENT_TYPE', eventValue, { properties });

// Example with both a value and properties
var properties = {package : "premium", admin : true, discount : 50};
var queued = client.track('user', 'page_load_time', 83.334, properties);

// Example with only properties
var properties = {package : "premium", admin : true, discount : 50};
var queued = client.track('user', 'page_load_time', null, properties);

// The expected parameters are:
const queued: boolean = client.track('TRAFFIC_TYPE', 'EVENT_TYPE', eventValue, , { properties });

// Example with both a value and properties
const properties = {package : "premium", admin : true, discount : 50};
const queued = client.track('user', 'page_load_time', 83.334, properties);

// Example with only properties
const properties = {package : "premium", admin : true, discount : 50};
const queued = client.track('user', 'page_load_time', null, properties);

var sdk = SplitFactory({
  startup: {
    readyTimeout:                 10, // 10 sec
    eventsFirstPushWindow:        10  // 10 sec
  },
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'YOUR_KEY'
  },
  scheduler: {
    featuresRefreshRate:      5, // 5 sec
    segmentsRefreshRate:     60, // 60 sec
    impressionsRefreshRate: 300, // 300 sec
    impressionsQueueSize: 30000, // 30000 items
    eventsPushRate:          60, // 60 sec
    eventsQueueSize:        500, // 500 items
    telemetryRefreshRate:  3600  // 1 hour
  },
  sync: {
    splitFilters: [{
      type: 'bySet',
      values: ['frontend']
    }],
    impressionsMode: 'OPTIMIZED'
  },
  debug: false
});

const sdk: SplitIO.ISDK = SplitFactory({
  startup: {
    readyTimeout:                 10, // 10 sec
    eventsFirstPushWindow:        10  // 10 sec
  },
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'YOUR_KEY'
  },
  scheduler: {
    featuresRefreshRate:      5, // 5 sec
    segmentsRefreshRate:     60, // 60 sec
    impressionsRefreshRate: 300, // 300 sec
    impressionsQueueSize: 30000, // 30000 items
    eventsPushRate:          60, // 60 sec
    eventsQueueSize:        500, // 500 items
    telemetryRefreshRate:  3600  // 1 hour
  },
  sync: {
    splitFilters: [{
      type: 'bySet',
      values: ['frontend']
    }],
    impressionsMode: 'OPTIMIZED'
  },
  debug: false
});

var factory = window.splitio.SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'key'
  },
  // Same as SplitFactory, InLocalStorage is exposed on the global splitio object
  storage: window.splitio.InLocalStorage({
    prefix: 'MY_PREFIX'
  })
});

// Now use the SDK as usual
var client = factory.client();

import { SplitFactory, InLocalStorage } from '@splitsoftware/splitio-browserjs';

const factory: SplitIO.ISDK = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'key'
  },
  storage: InLocalStorage({
    prefix: 'MY_PREFIX'
  })
});

// Now use the SDK as usual
const client = factory.client();

<script src="//cdn.split.io/sdk/split-browser-0.15.0.full.min.js"></script>

var sdk = splitio.SplitFactory({
  core: {
    authorizationKey: 'localhost'
  },
  features: {
    'reporting_v2': 'on', // example with just a string value for the treatment
    'billing_updates': { treatment: 'visa', config: '{ "color": "blue" }' }, // example of a defined config
    'show_status_bar': { treatment: 'off', config: null } // example of a null config
 },
  scheduler: {
    offlineRefreshRate: 15 // 15 sec
  }
});

var client = sdk.client();

// The following code will be evaluated once the engine finishes the initialization
client.on(client.Event.SDK_READY, function() {
  // The sentence below will return 'on'
  var t1 = client.getTreatment('reporting_v2')
  // The sentence below will return an object with the structure of: {treatment:'visa',config:'{ "color":"blue" }'}
  var t2 = client.getTreatmentWithConfig('billing_updates')
  // The sentence below will return 'control' because that feature does not exist
  var t3 = client.getTreatmentWithConfig('navigation_bar_changes')
});

import { SplitFactory, LocalhostFromObject } from '@splitsoftware/splitio-browserjs';

const sdk: SplitIO.ISDK = SplitFactory({
  core: {
    authorizationKey: 'localhost'
  },
  features: {
    'reporting_v2': 'on', // example with just a string value for the treatment
    'billing_updates': { treatment: 'visa', config: '{ "color": "blue"}' } // example of a defined config
    'show_status_bar': { treatment: 'off', config: null } // example of a null config
  },
  scheduler: {
    offlineRefreshRate: 15 // 15 sec
  },
  sync: {
    localhostMode: LocalhostFromObject()
  }
});

const client: SplitIO.IClient = sdk.client();

// The following code will be evaluated once the engine finishes the initialization
client.on(client.Event.SDK_READY, () => {
  // The sentence below will return 'on'
  const t1: SplitIO.Treatment = client.getTreatment('reporting_v2');
  // The sentence below will return an object with the structure of: {treatment:'visa',config:'{ "color":"blue" }'
  const t2: SplitIO.Treatment = client.getTreatmentWithConfig('billing_updates');
  // The sentence below will return 'control' because that feature does not exist
  const t3: SplitIO.Treatment = client.getTreatmentWithConfig('navigation_bar_changes');
});

// The SDK keeps a reference to the `features` object map, so you can mutate the object as follows to emit SDK_UPDATE events:
config.features['reporting_v2'] = 'off'; // update reporting_v2
config.features['reporting_v3'] = 'off'; // add reporting_v3
delete config.features['reporting_v2']; // delete reporting_v2

// In case you need to update the whole mock object, you can replace the internal reference from the factory:
factory.settings.features = { 'reporting_v3': 'off' };

// But don't do it on the passed configuration, as the SDK will not reference the new object:
config.features = { 'reporting_v3': 'off' }; // Will not emit SDK_UPDATE

var factory = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    // the key can be the logged in
    // user id, or the account id that
    // the logged in user belongs to.
    // The type of customer (user, account, custom)
    // is chosen during Split's sign-up process.
    key: 'key'
  }
});

var manager = factory.manager();

manager.once(manager.Event.SDK_READY, function() {
  // Once it's ready, use the manager
});

const factory: SplitIO.ISDK = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    // the key can be the logged in
    // user id, or the account id that
    // the logged in user belongs to.
    // The type of customer (user, account, custom)
    // is chosen during Split's sign-up process.
    key: 'key'
  }
});

const manager: SplitIO.IManager = factory.manager();

manager.once(manager.Event.SDK_READY, function() {
  // Once it's ready, use the manager
});

/**
 * Returns the feature flag registered within the SDK that matches this name.
 *
 * @return SplitView or null.
 */
var splitView = manager.split('name-of-feature-flag');

/**
 * Retrieves all the feature flags that are currently registered within the SDK.
 *
 * returns a List of SplitViews.
 */
var splitViewsList = manager.splits();

/**
 * Returns the names of all feature flags registered within the SDK.
 *
 * @return a List of Strings of the features' names.
 */
var splitNamesList = manager.names();

/**
 * Returns the feature flag registered within the SDK that matches this name.
 *
 * @return SplitView or null.
 */
const splitView: SplitIO.SplitView = manager.split('name-of-feature-flag');

/**
 * Retrieves all the feature flags that are currently registered within the SDK.
 *
 * returns a List of SplitViews.
 */
const splitViewsList: SplitIO.SplitViews = manager.splits();

/**
 * Returns the names of all feature flags registered within the SDK.
 *
 * @return a List of Strings of the features' names.
 */
const splitNamesList: SplitIO.SplitNames = manager.names();

type SplitView = {
  name: string,
  trafficType: string,
  killed: boolean,
  treatments: Array<string>,
  changeNumber: number,
  configs: {
    [treatmentName: string]: string
  },
  defaultTreatment: string,
  sets: Array<string>
}

function logImpression(impressionData) {
  // do something with the impression data.
}

var factory = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'key'
  },
  impressionListener: {
    logImpression: logImpression
  }
});

class MyImprListener implements SplitIO.IImpressionListener {
  logImpression(impressionData: SplitIO.ImpressionData) {
    // do something with impressionData
  }
}

const factory: SplitIO.ISDK = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'key'
  },
  impressionListener: {
    logImpression: new MyImprListener()
  }
});

import { SplitFactory, DebugLogger } from '@splitsoftware/splitio-browserjs';

const sdk: SplitIO.ISDK = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'key'
  },
  debug: DebugLogger() // other options are `InfoLogger`, `WarnLogger` and `ErrorLogger`
});

var splitio = require('@splitsoftware/splitio-browserjs');

var sdk = splitio.SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'key'
  },
  debug: splitio.DebugLogger() // other options are `InfoLogger`, `WarnLogger` and `ErrorLogger`
});

var sdk = splitio.SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'key'
  },
  debug: splitio.DebugLogger() // Only the full UMD bundle includes `DebugLogger`, `InfoLogger`, `WarnLogger` and `ErrorLogger` modules in the `splitio` namespace.
});

import { SplitFactory } from '@splitsoftware/splitio-browserjs';

const sdk: SplitIO.ISDK = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'key'
  },
  debug: true // other options are 'ERROR', 'WARN', 'INFO' and 'DEBUG
});

// Or you can use the Logger API methods which have an immediate effect.
sdk.Logger.setLogLevel('WARN'); // Acceptable values are: 'DEBUG', 'INFO', 'WARN', 'ERROR', 'NONE'
sdk.Logger.enable(); // equivalent to `setLogLevel('DEBUG')`
sdk.Logger.disable(); // equivalent to `setLogLevel('NONE')`

var splitio = require('@splitsoftware/splitio-browserjs');

var sdk = splitio.SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'key'
  },
  debug: true // other options are 'ERROR', 'WARN', 'INFO' and 'DEBUG
});

// Or you can use the Logger API methods which have an immediate effect.
sdk.Logger.setLogLevel('WARN'); // Acceptable values are: 'DEBUG', 'INFO', 'WARN', 'ERROR', 'NONE'
sdk.Logger.enable(); // equivalent to `setLogLevel('DEBUG')`
sdk.Logger.disable(); // equivalent to `setLogLevel('NONE')`

// Acceptable values are 'DEBUG', 'INFO', 'WARN', 'ERROR' and 'NONE'
// Other acceptable values are 'on', 'enable' and 'enabled', which are equivalent to 'DEBUG' log level
localStorage.splitio_debug = 'on' <enter>

var factory = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'CUSTOMER_ACCOUNT_ID',
    // Instantiate the sdk once and provide the ID for one of the
    // traffic types that you plan to release to. It doesn't
    // matter which you pick to start off with.
  },
});

// now when you call factory.client(), the sdk creates a client
// using the Account ID and traffic type name (if any)
// you passed in during the factory creation.
var account_client = factory.client();

// to create another client for a User instead, just pass in a User ID

// This is only valid after at least one client has been initialized.
var user_client = factory.client('CUSTOMER_USER_ID');

// check treatment for user-poll and CUSTOMER_USER_ID
var user_poll_treatment = user_client.getTreatment('user-poll');

// check treatment for account-permissioning and CUSTOMER_ACCOUNT_ID
var account_permissioning_treatment = account_client.getTreatment('account-permissioning');

// track events for accounts
user_client.track('account', 'PAGELOAD', 7.86);

// or track events for users
account_client.track('user', 'ACCOUNT_CREATED');

const sdk: SplitIO.ISDK = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'CUSTOMER_ACCOUNT_ID'
    // instantiate the sdk once and provide the ID for one of the
    // traffic types that you plan to release to. It doesn't
    // matter which you pick to start off with.
  },
});

// now when you call sdk.client(), the sdk will create a client
// using the Account ID you passed in during the factory creation.
const account_client: SplitIO.IClient = factory.client();

// to create another client for a User instead, just pass in a
// User ID to the sdk.client() method. This is only valid after
// at least one client has been initialized.
const user_client: SplitIO.IClient =
  factory.client('CUSTOMER_USER_ID');

// check treatment for user-poll and CUSTOMER_USER_ID
const user_poll_treatment: SplitIO.Treatment =
  user_client.getTreatment('user-poll');

// check treatment for account-permissioning and CUSTOMER_ACCOUNT_ID
const account_permissioning_treatment: SplitIO.Treatment =
  account_client.getTreatment('account-permissioning');

// track events for accounts
user_client.track('account', 'PAGELOAD', 7.86);

// or track events for users
account_client.track('user', 'ACCOUNT_CREATED');

function whenReady() {
  var treatment = client.getTreatment('FEATURE_FLAG_NAME');
  if (treatment === 'on') {
    // insert on code
  } else if (treatment === 'off') {
    // insert off code
  } else {
    // insert control code (usually the same as default treatment)
  }
}
client.once(client.Event.SDK_READY, function () {
  // the client is ready to evaluate treatments according to the latest feature flag definitions
});

client.once(client.Event.SDK_READY_TIMED_OUT, function () {
  // this callback will be called after the set timeout period has elapsed if and only if the client
  // is not ready for that time. You can still call getTreatment()
  // but it could return CONTROL.
});

client.on(client.Event.SDK_UPDATE, function () {
  // fired each time the client state changes.
  // For example, when a feature flag or a segment changes.
  console.log('The SDK has been updated!');
});

// This event fires only using the LocalStorage option and if there's Split data stored in the browser.
client.once(client.Event.SDK_READY_FROM_CACHE, function () {
  // Fired after the SDK could confirm the presence of the Split data.
  // This event fires really quickly, since there's no actual fetching of information.
  // Keep in mind that data might be stale, this is NOT a replacement of SDK_READY.
});

function whenReady() {
  const treatment: SplitIO.Treatment = client.getTreatment('FEATURE_FLAG_NAME');

  if (treatment === 'on') {
    // insert on code
  } else if (treatment === 'off') {
    // insert off code
  } else {
    // insert control code (usually the same as default treatment)
  }
}

// the client is ready for start making evaluations with your data
client.once(client.Event.SDK_READY, whenReady);

client.once(client.Event.SDK_READY_TIMED_OUT, () => {
  // this callback will be called after 1.5 seconds if and only if the client
  // is not ready for that time. You can still call getTreatment()
  // but it could return CONTROL.
});

client.on(client.Event.SDK_UPDATE, () => {
  // fired each time the client state change.
  // For example, when a feature flag or a segment changes.
  console.log('The SDK has been updated!');
});

// This event fires only using the LocalStorage option and if there's Split data stored in the browser.
client.once(client.Event.SDK_READY_FROM_CACHE, function () {
  // Fired after the SDK could confirm the presence of the Split data.
  // This event fires really quickly, since there's no actual fetching of information.
  // Keep in mind that data might be stale, this is NOT a replacement of SDK_READY.
});

import { SplitFactory, PluggableStorage } from '@splitsoftware/splitio-browserjs';

var config = {
  mode: 'consumer', // Changing the mode to 'consumer' or 'consumer_partial' here
  core: {
    authorizationKey: '<your-api-key>',
    key: 'key'
  },

  // Using the PluggableStorage function, to create an storage instance
  // with a given a storage wrapper that the SDK should talk to
  storage: PluggableStorage({
    // Wrapper objects must implement a special interface
    wrapper: MyWrapper,
    // Optional prefix to prevent any kind of data collision using
    // the same storage with multiple SDKs with different SDK keys
    prefix: 'prefix'
  })
};

var factory = SplitFactory(config);
var client = factory.client();

// Unlike standalone mode, since the storage can by async the SDK will execute its operations asynchronously and
// instead of just returning a treatment as string, it returns a Promise that will be resolved to the treatment value.

// There are two main options to call getTreatments and extract the treatment. One is the async/await syntax:
var treatment = await client.getTreatment('my-feature-comming-from-storage');

// and the other option is just using the returned promise
client.getTreatment('my-feature-comming-from-storage')
  .then(treatment => {
    // do something with the treatment
  });

// Same as in standalone mode, you can listen to the SDK events to make sure it's ready before calling for evaluations:

client.once(client.Event.SDK_READY, function () {
  // Depending on the wrapper implementation, this callback will be called immediately or once the connection with the underlying storage is stablished.
  // It is recommended to wait for this event before using the SDK. Otherwise the evaluation treatment might be 'control'.
});

client.once(client.Event.SDK_READY_TIMED_OUT, function () {
  // This callback will be called after the seconds set at the `startup.readyTimeout` config parameter,
  // if and only if the SDK_READY event was not emitted for that time.
});

var factory = SplitFactory({
  core: {
    authorizationKey: 'YOUR_SDK_KEY',
    key: 'key'
  },
  // Overwrites the initial consent status of the factory instance, which is 'GRANTED' by default.
  // 'UNKNOWN' status represents that the user has neither granted nor declined consent for tracking data,
  // so the SDK will locally track data but not send it to Split cloud until consent is changed to 'GRANTED'.
  userConsent: 'UNKNOWN'
});

// `getStatus` method returns the current consent status.
factory.UserConsent.getStatus() === factory.UserConsent.Status.UNKNOWN;

// `setStatus` method lets you update the factory consent status at any time.
// Pass `true` for 'GRANTED' and `false` for 'DECLINED'.
factory.UserConsent.setStatus(true); // Consent status changed from 'UNKNOWN' to 'GRANTED'. Data will be sent to Split cloud.
factory.UserConsent.getStatus() === factory.UserConsent.Status.GRANTED;

factory.UserConsent.setStatus(false); // Consent status changed from 'GRANTED' to 'DECLINED'. Data will not be sent to Split cloud.
factory.UserConsent.getStatus() === factory.UserConsent.Status.DECLINED;