/react-shisell

React binding for Shisell-js

Primary LanguageTypeScriptMIT LicenseMIT

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 enhances the shisell analytics dispatcher and adds another Scope/ExtraData/Identity/etc.

API

withAnalytics

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

Usage example:

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. This is usually used for adding a sub-scope, or some data you want all subcomponents to include in their analytics.

Usage example:

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, 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).

Usage example:

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.

Usage example:

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 that 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 of what the specified prop value is.

Usage example:

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.

Usage example:

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().

Usage example:

// 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.

Usage example:

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 essentially the connection between shisell and react-shisell. 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.

Usage example:

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