Making REST calls from a react component

Question

I am trying to make REST call from a react component and render the returned JSON data into the DOM

Here is my component

import React from \'react\';

ex         


        

Answer 1

There are a couple of errors in your code. The one that's probably tripping you up is the this.setState({items:result.json()})

Fetch's .json() method returns a promise, so it will need to be dealt with as async.

fetch(`http://jsonplaceholder.typicode.com/posts`)
.then(result=>result.json())
.then(items=>this.setState({items}))

I don't know why .json() returns a promise (if anyone can shed light, I'm interested).

For the render function, here you go...

   {this.state.items.map(item=>
{item.body}
)}

Don't forget the unique key!

For the other answer, there's no need to bind map.

Here it is working...

http://jsfiddle.net/weqm8q5w/6/