In this post, I will show you fetching data from a remote source inside your React.js application. So let’s create a brand new React project with
Initialize a React project
If you succeed in executing the above commands, you will see the default React page in the browser at
Let’s create a brand new component called
Todo, for this create a file called
Todo.js with following code in the
Our todo component is ready to import, let’s import it into the App component, for the sake of simplicity I have removed all the default code from the App component render method, and the final version will be like below shown:
And if you see the output of this state by visiting
http://localhost:3000, it will show the
Todos List text in the browser.
Now let’s define constructor() method and assign the initial state as shown below
Now update the render method as shown below,
In the preceding code in the
renderTodos(), we are iterating over the todos and pushing items into the
Now let’s fetch the content from the remote API, for this
componentDidMount() lifecycle method is the best place. So let’s define it:
In preceding code, we are calling the setState() method in the response of fetch API callback. and this will update the state of the component(todos) and it will trigger an extra rendering but it will happen before the browser updates the screen. This guarantees that even though the render() will be called twice in this case, the user won’t see the intermediate state.
Now if you visit
http://localhost:3000, you will the todos list in the browser.
I hope you like this Post, Please feel free to comment below, your suggestion and problems if you face - we are here to solve your problems.
I am Arjun from Hyderabad (India). I have been working as a software engineer from the last 7+ years, and it is my passion to learn new things and implement them as a practice. Aside from work, I like gardening and spending time with pets.