Hey,

I know building TODO List always won't get you too far😴, But It can teach you basic concepts and implementation of a particular framework.

here is the demo of what we're going to build in this tutorial.👇👇 Link: react-redux-todo-app-lac.vercel.app

Now please if you're starting this tutorial watch till the end because doing it half won't teach you anything. So let's dig in.🤩

In this tutorial, we're going to build this TODO app with animations using Framer-Motion.

What will you learn after this Tutorial?

• How to use Redux Toolkit

• How to use Framer-Motion for awesome animations

• Method to sort and display lists

• CRUD operation (obviously🤭)

If you prefer to code along with the same steps while listing to music you can watch this video 👀:

You must have basic understanding of Redux to follow this tutorial, don't worry if you don't know the basics of Redux you can visit my channel, there is playlist to learn redux.

###Let's Get Started

First, below is the folder structure for this small project so make sure you create it.

####Folder Structure

src
|--redux(folder)
   |--reducer.js (here we will create actions and reducer)
   |--store.js
|--components(folder)
   |--Todos.js
   |--TodoItem.js
    --DisplayTodos.js
|--css(folder)
   |--main.css

Follow the below commands to create a react-app and install the required libraries!

npx create-react-app your-app-name cd your-app-name npm install react-redux @reduxjs/toolkit framer-motion react-icons

we're going to use all four libraries, react-icons is to add SVG files in our app.

First, let's add one input and add button in the Todos.js.

As you can see in the above code it has one input with the handle change () method and one add button.

###Creating Reducer and Store

Now let's create our Reducer and actions. Open the reducer.js file and write the below code:

Explanation:

Now here we're going to use the createSlice() function. This function takes 1 object having 3 parameters, --> name of the slice function --> initial State --> All reducer logic inside reducers {} object

Line 1: import createSlice function.

Line 2: create the initial state here it is an empty array.

Line 5: Here we have used the createSlice function and passed all 3 required parameters.

Line 13: We have created one action called addTodos this action gets a callback function that has two arguments (state, action). Then this function will return the state with adding action. payload (payload contains one to-do item).

Line 22: Here we have exported addTodos as an action from addTodoReducer.

Line 23: Here we have exported the reducer from addTodoReducer.

So, let's create our store and pass this reducer.

Open store.js and write the below code:

import { configureStore } from "@reduxjs/toolkit";
import { reducer } from "./reducer";

const store = configureStore({
  reducer: reducer,
});

export default store;

In the above code, we have used the configureStore function.

This function takes one reducer and automatically takes care of the Redux DevTools extension so we don't have to write about it explicitly.

Now our store is ready with the reducer that we have created.

###Connecting Redux Store with React App

Let's connect this store to our React application.

I like to connect the store in the index.js file. Open the index.js file.

import Provider from the react-redux and store from store.js

import { Provider } from "react-redux";
import store from "./redux/store";

Now just wrap your component with this Provider and pass the store in the Provider just like this,

ReactDOM.render(
  <React.StrictMode>
//Just like below 👇
    <Provider store={store}>
      <App />
    </Provider>

  </React.StrictMode>,
  document.getElementById("root")
);

Now our Redux store is connected to our React App.

Connect React component with Redux

Let's use this store and Redux functionalities in the Todos.js component.

To connect this component with Redux we will use connect() method from react-redux.

Open the Todos.js file.

import connect method from react-redux.

import { connect } from "react-redux";

Now instead of simple export default Todos change it to this line:

export default connect(null,null)(Todos);

This is how we use connect method, It's like a higher-order function that takes your component (Todos in our case) and adds redux functionalities to it then returns it.

Now add props in your component and log this props you will see and Object having dispatch method. Which means your component is now connected with Redux.

Let's use the todos state in our component.

To use state from redux we have to pass the mapStateToProps method in the connect method. and to use actions or functions that we created inside the reducer (like addTodos) we have to create and pass the mapDispatchToProps method and add it to the connect method.

So let's create both of these methods in the Todos.js component.

const mapStateToProps = (state) => {
  return {
    todos: state,
  };
};

This method takes the state as an argument and will return the state as we want here I want the state as todos.

const mapDispatchToProps = (dispatch) => {
  return {
    addTodo: (obj) => dispatch(addTodos(obj)),
  };
};

This method takes dispatch as an argument and it can dispatch an action to the reducer. here, I want to add todos so this method returns and the addTodo method. addTodo method dispatch an addTodos action with an obj(which contains a todo item, it will act as action. payload ).

here, make sure to import addTodos action from reducer file.

now add both of these methods in the connect just like this,

export default connect(mapStateToProps, mapDispatchToProps)(Todos);

let's connect input and add a button with this state and methods.

Line 23: Here I have created add function. First, it will check it the todo state is not empty if it is empty then shows an alert else it will use the addTodo method from props. in this method, we will pass the todo object which contains the id, todo text, and completed boolean which is initially false.

Line 50: Make sure to connect add() with the Onclick of a button.

Line 55: here I have mapped values from the todos state. If todos. length > 0 then it will map it and shows all the to-do items you add.

You can also use Redux DevTools Extension to see actions and state.

Add All operations in the Reducer

Let's add all the required operations in the reducer.

Line 16: Removing todos will filter out items whose id is the same as action. payload. (which means while using this action we will pass the id as payload)

Line 20: updateTodos is used to change todo text or todo. item. It will check if id is same as passed in action.payload then it will return all other properties of the item and change the text of todos with the passed value.

Line 32: completeTodos will change the completed boolean value of particular item to true.

Line 46: Make sure to export all the required todo actions.

Now we will use all these actions.

Let's separate display todos component from Todos.js file. Remove ul list from it and let's add it in the DisplayTodo item component.

Before creating DisplayTodos.js component, first let's create TodoItem.js component.

so, open TodoItem.js file and write below code.

Don't read this code, First read the explanation.

Now as you saw in the demo each todo item contains 3 buttons edit,completed,delete. and 3 methods connected with these buttons.

Line 2 & 3: This contains import of icons from react-icons library, we will use this icons in edit, update and remove buttons.

Line 7: These are the all required items that we have to pass while displaying TodoItem* component.

• item --> contains all the data of single todo item

• updateTodo --> Method to update todo

• completeTodo --> method to set todo is completed

• removeTodo --> method to remove todo item

Line 23: Here in the return Inside this li element you can see,

• textarea --> it shows the todo text as default value.

• buttons --> after text area there are 3 buttons which contains icons for edit, update and remove, this buttons are connected with all required methods.

• span --> after these buttons there is one span element which shows done, and it will display only when item.completed is true.

Line 9: It is a ref which is connected with textarea. It's value is true.

Line 30: here, we have used ref value for the disabled attribute, which means while ref is true until then textarea stays disabled.

Line 11: This change Function will enable the textarea and adds focus on it. This function is connected with the edit button.

Line 16: This function is used to update value of the todo item. It will take 3 arguments, id, updated value and event. Then when you press the enter key then it will call the updateTodo method and pass all required things as object and disable the textarea. It is connected on onKeyPress in the textarea at Line 32.

Line 48: This remove button is connected with the remove method. we have to pass id of the item we want to remove in this method.

Now let's use this component inside the DisplayTodos.js file.

open DisplayTodos.js and write below code.

Make sure to import DisplayTodos.js component in the App.js file right after the Todos component.

Line 1-9: Contains all the requried imports.

Line 12 & 18: we have already discussed about both of these method. Both of these methods must be passed in the connect method. One of them is to map state to props while the other method contains all the required methods to dispatch particular actions.

Line 28: This state is for those 3 buttons which are active, completed and all. It is initialised with "active".

Line 31: This div contains all 3 buttons. and onClick of these buttons sort state gets changed based on the button it's values can be "active","completed" or "all".

Line 53: In this ul element we're rendering 3 different lists based on conditions like,

--> Renders active todo items when (item.completed === false) and (sort === "active")

--> Renders completed todo items when (item.completed === true) and (sort === "completed")

--> Renders all todo items when (sort === "all")

Line 61-65: This contains all the data that we need to pass in the TodoItem component.

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Now for the Framer-motion and CSS part you can watch the video or read the code from github repository. (It will be more easier to understand when you watch the video then writing here about css and animations )

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