Implementing Higher-Order Sagas for Error Handling

Demonstrate the creation and usage of a higher-order saga that wraps other sagas for centralized error handling.

import { call, put } from 'redux-saga/effects';

Imports the necessary effects from redux-saga.

function* withErrorHandler(sagaFunc, ...params) {
  try {
    yield call(sagaFunc, ...params);
  } catch (error) {
    // Handle the error by dispatching an action or logging
    console.error('Saga error:', error);
    // Example: yield put({type: 'SAGA_ERROR', error});
  }
}

Defines a higher-order saga that wraps another saga function. It attempts to execute the provided saga and catches any errors that occur, allowing for centralized error handling.

function* mySaga(param) {
  // Saga logic here
  console.log('Saga running with param:', param);
}

Example of a saga that could be wrapped by our higher-order saga. This simple saga logs its parameter.

function* rootSaga() {
  yield call(withErrorHandler, mySaga, 'test parameter');
}

In the root saga, we demonstrate using the higher-order saga to wrap 'mySaga'. This setup ensures that any errors in 'mySaga' are caught and handled by 'withErrorHandler'.