Predetermine a CID before uploading to Pinata

cid.js

import { CID } from 'multiformats/cid'
import * as raw from 'multiformats/codecs/raw'
import { sha256 } from 'multiformats/hashes/sha2'
const JWT = "YOUR_PINATA_JWT"

async function main(){
  try {
    const text = "Hello World!";
    const blob = new Blob([text], { type: "text/plain" });
    const unit8array = new Uint8Array(await blob.arrayBuffer());
    const bytes = raw.encode(unit8array)
    const hash = await sha256.digest(bytes)
    const cid = CID.create(1, raw.code, hash)
     console.log(cid.toString())
  } catch(error) {
    console.log(error)
  }
}

async function pinFileToIPFS() {
  try {
    const text = "Hello World!";
    const blob = new Blob([text], { type: "text/plain" });
    const data = new FormData();
    data.append("file", blob);
    const options = JSON.stringify({
      cidVersion: 1
    })
    data.append("pinataOptions", options)

    const res = await fetch("https://api.pinata.cloud/pinning/pinFileToIPFS", {
      method: "POST",
      headers: {
        Authorization: `Bearer ${JWT}`,
      },
      body: data
    });
    const resData = await res.json();
    console.log(resData.IpfsHash);
  } catch (error) {
    console.log(error);
  }
};
main()
pinFileToIPFS()