What causes the dispatch property to be undefined in a connected wrapped component within a connected Higher Order Component while using react-redux in conjunction with typescript?

As a new user, I am facing a particular challenge. I am working with a Higher Order Component (HoC) that injects properties into a wrapped component. The HoC itself returns a React.ComponentClass that is connected to the redux store with mapped and dispatched properties.

When trying to use the HoC with a component that is also connected to the redux store, I observed that all properties within the wrapped component are initialized except for the dispatch properties, which are showing up as undefined. I am puzzled by why the dispatch properties are undefined in the wrapped component?

For my implementation, I am utilizing react-redux 7.1 and deriving the mapped and dispatched properties with the ConnectedProps react-redux type.

Higher Order Component

import cuid from 'cuid';
import React, { Component, ComponentType } from 'react';

import { ConnectedProps } from 'react-redux';
import { RouteComponentProps, withRouter } from 'react-router-dom';

import { ApiErrorDialog } from './ApiErrorDialog';
import { ApiErrorListenerComponentProps } from './types';
import { connector } from './reduxConnect';

// Code for the Higher Order Component

Wrapped Component

// Code for the Wrapped Component

Updated 26/11/2019 In response to a comment, I have set up a codesandbox example here. The issue did not occur in the codesandbox, so I will further investigate in my original codebase. As a new react-redux user, any feedback on whether I am correctly connecting to the redux store in the higher order component and base component in the codesandbox code would be highly appreciated.

I am also facing another issue, as explained in the readme file of the codesandbox, for which I will be raising a separate question.

Answer №1

Successfully resolved the issue by fixing the incorrect connection of the HoC to the redux store, where the component was mistakenly casted to any type. The solution was found in a different question.

Implemented the nested HOC pattern as suggested in the react-redux-typescript-guide by refactoring the HoC.

Grateful for the author of the guide for their dedication in providing a solution and to the downvoter for prompting a minimal reproduction of the issue.

For reference, a codesandbox model showcasing the functioning components with the fixed versions can be accessed here.

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