Fetch Data from JSON File in React JS | React JSON [ UPDATED ]

How to fetch data from JSON file in react js? How to use an Array map within map in JSX React JS? This is what we will learn in this tutorial:

- 'Display JSON Data in React app' directly.
- Use JavaScript Array map() to display data.
- Use Array map inside Array map.
- Fetch records in React JS from nested objects in JSON file.

Arrays have opening and closing square brackets. Objects are stored inside curly brackets. To use data inside a JSON file, we take an opening and closing square brackets. Inside brackets, we take objects in curly braces. Object has got key, value pairs. In JSON we write keys with double quotes.

Then we added some nested data in JSON file. To display this nested data, we will use Array map inside Array map or map inside map. We already have the JSON data object. We will just extract values from it further. Unique key is needed for each record so that it can be identifiable by the app in case you need to get a single record.

Unique Key prop is needed. We hard coded unique IDs in JSON file but you can get a package from npm to better handle unique IDs. For example UUID. You can take any type of JSON file, call it in React component with any name, map it's data and display records from it easily. You can use JSON file as a temporary database for the react app if you need it.

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[ticia_games]

Voce é o salvador da pátria. Sinceramente! Obrigada amigo, voce é um amigo

[trinity]

Need more people like you thank you so much!

[dxrywfy]

Excellent and very clear explanation. Thank you so much!

[arshots]

Thanks for the wonderful video. What if we need to provide/upload the JSON file using the <input type="file" /> rather than hard coding via import data from '../example.json' ?. Thanks.

[mvsrcm]

thanks alot sir time saving for me! just subscribed

[muhammadbangkit]

I have a question, if u want to render it but ordering let say ordering by price, how do you do that?

[Soc-Analyst-Security]

Is there an alternative to write data in json files as you are teaching here? without axios/fetch, json server?

[Ifrit_desu]

Thanks for the great video! How would i go about adding a link to obj i got from the json file?

[illidrissimouad]

what about feting data depending on the id you clik on it on the link...?

[soumyadipmajumder]

If somebody create the json file under public folder then how to import in the source page folder? please reply...

[akporraphael]

In my vs code I don't get intellisense for json. What may be the problem?

[manuelbattaglia]

nice, but I can't execute the file, would you explain me how to do it? thank u so much

[synologictips]

Then how u fetch if u have like 20-30 json data?

[shravanp]

can you make a video on how to read json data from AWS for a react web app?

[edberaga]

Why I got this error
Uncaught TypeError: is not a function

My map isn't a function??

[bunyameennurudeen]

Thanks Dev.

This is awesome and very educative but what of in a situation whereby there's a pure objects in the array like having a sub object as we have for array.

Example:- languages: {
ara: "Arabic"
},

which are different across the three items

Thanks Dev

[bigbitdev]

Bro you are the best I will subscribe!

[NYC_CuriousG]

Thank you for this video! Makes sense now. Question - what if in the JSON you are using from an API doesn't have ids hardcoded? Can you somehow assign it? (line 19 in your code)