React Native Fetch Json

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Configuring NSURLSession on iOS​

Hello Friends đź‘‹,. Welcome To Infinitbility! This tutorial helps you to understand how to use objects and arrays to your react native code. Today we take some JSON and array data and show their data one by one in React native also take some mixed JSON and array. As we know, If we see data in {} ( curly brace ) then we called object and if see data In [] ( Square bracket ) then we called an array. Table of content. Object retrieve example. Array retrieve example.

Introduction to React Native Fetch

Suppose, we have an object something like id name like below than how we can use in react native. Suppose, we have an array of something like a list of names like below than how we can use in react native. To show the array one by one we have to use loops. You are able to access array, below two way actually it depends upon a situation which of example you have to use.

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Modified1 year, 9 months ago. I'm writing small app for iPhone using react native. I'm trying to fetch JSON data from a website using fetch. Like in the example:. Everything works fine but I need to use that data later.

When I try to assign it to some variable in json function, I get "Request error" and after that get the data (correctly). What's the best practise to get that data and have it in some variable to use it later? 12741274 bronze badges. 81533 gold badges1111 silver badges1919 bronze badges. 1111 silver badges1919 bronze badges. I did it like this. I displayed the response on console. You can store the response data in your state variable or in local storage as you want.

Using Fetch​

55 gold badges1414 silver badges2222 bronze badges. 2222 bronze badges. You can create a variable in the component's constructor:.

Then you update this variable when you needed:. 22 gold badges2525 silver badges3333 bronze badges.

3333 bronze badges. Firstly, as you know, each request returns a header and a body. When we use fetcha default response that is headers request.If we need to body of request, that's enough response.json(). And if the body of your request is html dom Just use this response.text(). And if you want to return your header no need to do anything, Just add this line .then((response)=>response.json()) . 1111 gold badges100100 silver badges129129 bronze badges. 129129 bronze badges. In my case, i used a sails.js with passport local but it's very similar to any other node.js framework, to catch these variables I used for signin a function(req,res) where variables where stored in req.body.

In your case req.body.name will contain 'Hubot' and req.body.login will contain 'hubot'.Response will be sent using res.send.

Using Other Networking Libraries​

check the node.js documentation for more details. Mounir DhahriMounir Dhahri. Me works like this. 11 gold badge1212 silver badges1515 bronze badges. 1515 bronze badges. Modified1 year, 8 months ago. How can I store local files such as JSON and then fetch the data from controller? 22 gold badges2929 silver badges3333 bronze badges. 3333 bronze badges. Since React Native 0.4.3 you can read your local JSON file like this:.