React Shisell

Overview

React Shisell builds on shisell and lets you easily integrate analytics into react apps.

Its most basic design principle is that at the root of the react tree is the writer which does the actual writing to your favorite analytics service, and any component in the react tree enhance the shisell analytics dispatcher and add another Scope/ExtraData/Identity/etc.

API

• Higher order components
  • withAnalytics
  • enrichAnalytics
  • withAnalyticOnView
  • withAnalyticOnEvent
  • withOnPropChangedAnalytic
• Hooks
  • useAnalytics
  • useAnalyticCallback
• Others
  • AnalyticsProvider
  • analytics

withAnalytics

Adds a prop called analytics which contains a dispatcher of type shisell.AnalyticsDispatcher which lets any component freely dispatch analytics using the dispatcher currently in context.

Example usage:

class LoginPage extends React.Component {
    componentDidMount() {
        this.props.analytics.dispatcher
          .extend(withExtra('key', 'value'))
          .dispatch('Rendered');
    }

    ...
}

const EnhancedLoginPage = withAnalytics(LoginPage);
ReactDOM.render(<EnhancedLoginPage />);

enrichAnalytics

enrichAnalytics(
  (analytics: shisell.AnalyticsDispatcher, props: object) => shisell.AnalyticsDispatcher
): HigherOrderComponent;

With enrichAnalytics you can extend the existing analytics dispatcher and add whatever you want to it using shisell's standard capabilities. Usually used for adding a sub-scope, or some data you want all subcomponents to include in their analytics.

Example usage:

class LoginPage extends React.Component {
    componentDidMount() {
        this.props.analytics.dispatcher
          .extend(withExtraData('key', 'value'))
          .dispatch('Rendered');
    }

    ...
}

// The sent analytic will be LoginPage_Rendered as opposed to Rendered, because the scope was enhanced.
const EnhancedLoginPage = compose(
  enrichAnalytics(
    dispatcher => dispatcher.extend(createScoped('LoginPage'))
  ),
  withAnalytics,
)(MyComponent);
ReactDOM.render(<EnhancedLoginPage />);

withAnalyticOnView

withAnalyticOnView({
    analyticName: string,
    extendAnalytics?: (props: object) => shisell.AnalyticsExtender,
    shouldDispatchAnalytics?: (props: object) => boolean,
}): HigherOrderComponent;

withAnalyticOnView is used for the very common case of wanting to dispatch an analytic whenever a component mounts. For example, dispatching an analytic whenever someone enters a specific page, or views a modal, etc. It's also possible to supply a shouldDispatchAnalytics to only dispatch the analytic after a certain prop has a value (for example, data loaded from an async fetch).

Example usage:

const LoginPage = (props) => ...;

// The sent analytic will be LoginPage_Rendered as opposed to Rendered, because the scope was enhanced.
const EnhancedLoginPage = withAnalyticOnView({
  analyticName: 'LoginPage_Entered',
  extendAnalytics: (props) => withExtras({
    LoginAttempt: props.loginAttempt
  })
})(LoginPage);
ReactDOM.render(<EnhancedLoginPage />);

withAnalyticOnEvent

withAnalyticOnEvent({
    eventName: string,
    analyticName: string,
    extendAnalytics?: (props, ...eventArgs) => shisell.AnalyticsExtender,
}): HigherOrderComponent;

withAnalyticOnEvent is used when we need an event handler that dispatches analytics. For example, a button that triggers some action, and dispatches an analytic. The eventName is also the name of the prop the event handler will be injected into (if it already exists, it will be wrapped). There are two ways to add data to the sent analytic:

1. Statically - with extendAnalytics which will let you add extras/identities from the event itself.
2. Dynamically with props - the resulting component will accept an extendAnalytics prop which behaves the same as the static counterpart.

In addition, the component will receive a shouldDispatchAnalytics prop which can be a boolean or a (...params) => boolean predicate.

Example usage:

const LoginPage = (props) => <button onClick={onButtonClick}>Login here</button>;

// The sent analytic will be LoginPage_Rendered as opposed to Rendered, because the scope was enhanced.
const EnhancedLoginPage = withAnalyticOnEvent({
    eventName: 'onButtonClick',
    analyticName: 'LoginButton_Clicked',
    extendAnalytics: () => withIdentities({User: localStorage.userName}),
})(LoginPage);
ReactDOM.render(
    <EnhancedLoginPage
        extendAnalytics={() => withExtras({Source: 'Button'})}
        onButtonClick={(e) => console.log(e)}
        shouldDispatchAnalytics={someBooleanRule && true}
    />,
);

withOnPropChangedAnalytic

withOnPropChangedAnalytic({
    propName: string,
    analyticName: string,
    valueFilter?: (prevPropValue, nextPropValue) => boolean,
    includeFirstValue?: boolean,
    extendAnalytics?: (props: object) => shisell.AnalyticsExtender,
}): HigherOrderComponent;

withOnPropChangedAnalytic triggers an analytic dispatch whenever a specified property changes. It's meant for cases where there's a property which signals a change in state, and that state change should be recorded as an analytic. For example, 'LoggingIn' becoming 'LoginFailure'. In these cases you usually only want to send the analytic once when the property changes, and not on every subsequent re-render.

includeFirstValue is set to false by default. If set to true, the valueFilter function will be tested on (undefined, firstPropValue) and will dispatch if true.
Notice: providing includeFirstValue: true and not providing a valueFilter function will always result in dispatching on mount, regardless what's the specified prop value is.

Example usage:

const LoginPage = (props) => ...;

// The sent analytic will be LoginPage_Rendered as opposed to Rendered, because the scope was enhanced.
const EnhancedLoginPage = withOnPropChangedAnalytic({
  propName: 'loginState',
  analyticName: 'Login_Failure',
  valueFilter: (previousValue, nextValue) => previousValue === 'LoggingIn' && nextValue === 'LoginFailure'
})(LoginPage);
ReactDOM.render(<EnhancedLoginPage onButtonClick={(e) => console.log(e)} />);

useAnalytics

react hook that returns an object which contains a dispatcher of type shisell.AnalyticsDispatcher which lets any component freely dispatch analytics using the dispatcher currently in context. same as withAnalytics but with hooks.

Example usage:

const MyComponent = (props) => {
    const analytics = useAnalytics();
    useEffect(() => analytics.dispatcher.extend(createScoped('MyComponent')).dispatch('Loaded'), []);

    return <div>Hello Shisell</div>;
};

useAnalyticCallback

React hook to create analytic dispatcher functions. Simpler than using the analytics context from useAnalytics()

Example usage:

// create function to dispatch event
const sendEvent = useAnalyticCallback('eventName');
sendEvent();

// wrap function to dispatch event, call wrapped function
const onClickWithAnalytic = useAnalyticCallback('eventName', onClick);
onClickWithAnalytic();

// wrapped function with args / return value
const fetchWithAnalytic = useAnalyticCallback('eventName', fetch);
const value = await fetchWithAnalytic('arg');

AnalyticsProvider

React analytics context provider to override or transform the analytics dispatcher

Example usage:

const ExampleComponent = ({user, children}: ExampleComponentProps) => (
    <AnalyticsProvider dispatcher={(dispatcher) => dispatcher.extend(withExtra('UserId', user.id))}>
        {children}
    </AnalyticsProvider>
);

analytics

analytics: {
  dispatcher: shisell.AnalyticsDispatcher,
  transformDispatcher: (dispatcher: shisell.AnalyticsDispatcher) => shisell.AnalyticsDispatcher,
  setWriter(writer: shisell.EventModelWriter<void>) => void,
}

The analytics object is the connection between shisell and react-shisell, essentially. It holds the event writer and the current root dispatcher. It's used to dynamically set the event writer, and to transform the dispatcher for all analytics sent. For example, after successfuly logging in, you'd want all analytics sent to include a UserId identity.

Example usage:

login().then((user) => analytics.transformDispatcher((dispatcher) => dispatcher.extend(withExtra('UserId', user.id))));