I am trying to upload the metadata(JavaScript Object) of a file already uploaded to IPFS, from the client side in the NextJS. I am able to upload files(PDFs) to IPFS using the Infura's HTTP API
with the help of the ipfs-http-client
package, but I am not able to do so with JSON?
I have also tried uploading using the pinata SDK
but in vain.
How can I upload the JavaScript object to IPFS?
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Answer
The Short Answer: Perform JSON.stringify()
on the JavaScript Object and upload the returned value to the IPFS. You can either use Infura’s HTTP API end-point or ipfs-http-client
which is a client library for the IPFS HTTP API.
The Long Answer:
Uploading a file from user’s disk:-
1. Using the ipfs-core
package:
- install the ipfs-core package
yarn add ipfs-core
- using ipfs-core package
import * as IPFS from 'ipfs-core' const ipfs = await IPFS.create() //creating an IPFS node //passing the file object extracted from the HTML input. const { cid } = await ipfs.add(file) console.info(cid) // QmXXY5ZxbtuYj6DnfApLiGstzPN7fvSyigrRee3hDWPCaf
2. Using a public IPFS gateway
- You can use this public IPFS gateway provided by Infura and use it to upload the files directly by sending a post request to this IPFS gateway.
- You can refer to this post on dev.to.
Uploading a JavaScript Object as a JSON:-
- You can upload a JavaScript Object to IPFS in the form of JSON text.
- First, you have to stringify the JSON using
JSON.stringify(<JS_OBJECT>)
and upload the returned value of this function to the IPFS. - You can use either of the two methods discussed above for uploading the value returned by this function.