How do I use react-i18next with a connected component

Question

I would like to use react-i18next with my react-redux connected component and am not sure how to go about it.

I've simplified my code to show an example of a connected component:

import React from 'react';
import {connect} from 'react-redux';
import {userSelectors} from "./userSelectors";

interface IConnectedProps {
    activeUserName: string | undefined;
}
export class LandingPageComponent extends React.Component<IConnectedProps> {
    public render(): JSX.Element {
        return (
            <React.Suspense fallback={<Spinner/>}>
                <React.Fragment>
                    <div>
                    ... a bunch of controls using translated text
                    </div>
                    <div>{activeUserName}</div>
                </React.Fragment>
            </React.Suspense>
        );
    }
}

const mapStateToProps = (state: ICoreRootState) : IConnectedProps => ({
    activeUserName: userSelectors.getDisplayName(state),
});

export const LandingPage = connect(mapStateToProps)(LandingPageComponent);

Installed package versions:

react version: 16.8.4 
react-redux version: 5.1.1 
react-i18next version: 10.6.0

What I've tried:

1) I get the error below when I use withTranslation, WithTranslation as follows:

export class LandingPageComponent extends React.Component<IConnectedProps & WithTranslation> {...}
export const LandingPage = connect(mapStateToProps)(withTranslation()(LandingPageComponent));

Error:

The above error occurred in the <withI18nextTranslation(LandingPageComponent)> component:
    in withI18nextTranslation(LandingPageComponent) (created by Connect(withI18nextTranslation(LandingPageComponent)))
    in Connect(withI18nextTranslation(LandingPageComponent))
    in Route
    in t
    in Connect(t) (at App.tsx:49)
    in Switch (at App.tsx:45)
    in App (at src/index.tsx:14)
    in Router (created by ConnectedRouter)
    in ConnectedRouter (created by Connect(ConnectedRouter))
    in Connect(ConnectedRouter) (at src/index.tsx:13)
    in Provider (at src/index.tsx:12)

2) I get the error below when I use withTranslation, WithTranslation as follows:

export class LandingPageComponent extends React.Component<IConnectedProps & WithTranslation> {...}
export const LandingPage = withTranslation()(connect(mapStateToProps)(LandingPageComponent));

Error:

index.js:1446 The above error occurred in the <withI18nextTranslation(Connect(LandingPageComponent))> component:
    in withI18nextTranslation(Connect(LandingPageComponent))
    in Route
    in t
    in Connect(t) (at App.tsx:49)
    in Switch (at App.tsx:45)
    in App (at src/index.tsx:14)
    in Router (created by ConnectedRouter)
    in ConnectedRouter (created by Connect(ConnectedRouter))
    in Connect(ConnectedRouter) (at src/index.tsx:13)
    in Provider (at src/index.tsx:12)

3) I cannot use useTranslation since hooks are not allowed to be used within a class.

I also tried the following:

... a bunch of imports
interface ILogoutButtonProps {
    userName?: string;
}
interface IConnectedHandlers {
    readonly logout: any;
    readonly push: any;
}
class InnerLogoutComponent extends React.Component<IButtonProps & IConnectedHandlers & ILogoutButtonProps & WithTranslation, {}> {

    public render() {
        const {userName, onClick, logout: Logout, push: Push, ...buttonProps} = this.props;
        const logoutText = this.props.i18n.t(StringNames.logout);
        const buttonText = userName ? logoutText + " " + userName : logoutText;
        return (
            <Button {...buttonProps} text={buttonText} onClick={this.handleClick}/>
        );
    }

    private handleClick = (event: React.MouseEvent<HTMLElement>) : void => {
        this.props.logout()
            .then(() => this.props.push(LoginPaths.verifyUser));
    }
}
const InnerLogoutTranslatedComponent = withTranslation()(InnerLogoutComponent);

class LogoutComponentInternal extends React.Component<IButtonProps & IConnectedHandlers & ILogoutButtonProps, {}> {
    public render () {
        return (
            <InnerLogoutTranslatedComponent {...this.props}/>
        );
    }
}
export const LogoutComponent = connect(null,{logout, push})(LogoutComponentInternal);

but I get the following error:

Hooks can only be called inside the body of a function component. 

Thank you in advance...

Answer 1

In our project, we successfully utilize this:

import { compose } from 'redux';
import { withNamespaces } from 'react-i18next';
import { connect } from 'react-redux';
...
export default compose(withNamespaces('translation'), connect(mapStateToProps))(ComponentName);

With this, we connect to Redux with mapStateToProps and we have translations.