forward-project/src/actions/todo.js

import nanoid from 'nanoid';

export const ADD_TODO = 'ADD_TODO';
export const UPDATE_TODO_STATUS = 'UPDATE_TODO_STATUS';
export const UPDATE_FILTER = 'UPDATE_FILTER';
export const CLEAR_COMPLETED = 'CLEAR_COMPLETED';

export const addTodo = task => {
    return {
        type: ADD_TODO,
        todo: {
            id: nanoid(),
            task,
            complete: false
        }
    };
};

export const updateTodoStatus = (todo, complete) => {
    return {
      type: UPDATE_TODO_STATUS,
      todo,
      complete
    };
};

export const updateFilter = filter => {
    return {
      type: UPDATE_FILTER,
      filter
    };
};
  
export const clearCompleted = () => {
    return {
        type: CLEAR_COMPLETED
    };
};