introduction-to-ethereum-swarm/08-mint-nft - feedback

[Kexort]

Problem:

The tests of the 'Introduction to Ethereum Swarm 8. Mint NFT' course cannot run because of the following error:

Wrong solution!
Should correctly mint NFT
Error: Cannot find module '@agorapp/contracts' Require stack: - /app/packages/swarm-docker-runner/userspace/code/main.ts - /app/packages/runner-common/src/services/JavaScriptUserspace.ts - /app/packages/runner-common/src/index.ts - /app/packages/swarm-docker-runner/src/modules/courses/introToSwarm.ts - /app/packages/swarm-docker-runner/src/main.ts

My code:

import { Bee } from '@ethersphere/bee-js';
import { NftContractWrapper } from '@agorapp/contracts';

const bee = new Bee('https://api.gateway.ethswarm.org');

export async function main(
  nftFaucetContractAddress: string,
  imgPostageStampId: string,
  imgFile: string,
  postageStampId: string,
  recipient: string,
) {
  
  await uploadNftImage(imgPostageStampId, imgFile)
  await prepareNftMetadata(imgPostageStampId, imgFile)
  const nftFaucetContract = new NftContractWrapper(nftFaucetContractAddress);
  const imgUri = await uploadNftImage(imgPostageStampId, imgFile);
  const tokenUri = await prepareNftMetadata(postageStampId, imgUri);

  const mintedTx = await nftFaucetContract.mintNft(recipient, tokenUri);
  return {transactionHash: mintedTx.transactionHash};
}

export async function uploadNftImage(imgPostageStampId: string, imgFile: string) {
  const res = await bee.uploadFile(imgPostageStampId, imgFile);
  return 'bzz://'.concat(res.reference);
}

export async function prepareNftMetadata(postageStampId: string, imgUri: string) {
  const metadata = {
    name: 'My NFT',
    description: 'My NFT description',
    image: imgUri,
  };

  const metadataStr = JSON.stringify(metadata);

  const res = await bee.uploadData(postageStampId, metadataStr);

  return {
    reference: res.reference,
    tokenUri: 'bzz://'.concat(res.reference),
  };
}