src/reducers/error.reducer.js


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export default function ErrorReducer(state = {}, action) {
    const { type, error } = action;
    const matches = /(.*)_(REQUEST|FAILED|ERROR)/.exec(
      type
    );
    if (!matches) return state;
    const [, requestName, requestState] = matches;
    return {
      errorMessage:
        requestState === "FAILED" || requestState === "ERROR"
          ? error
            ? error
            : ""
          : "",
      [requestName]: requestState === "FAILED" || requestState === "ERROR" ? true: false
    };
  }