@metaplex-foundation/js is deprecated

[Mishragini]

Problem

While going through this Solana tutorial, I found that the package used is deprecated and no longer in use.

Proposed Solution

1. Update the Tutorial: Replace references to the deprecated package with the latest version or alternative packages currently recommended by the Metaplex and Solana communities.

2. Provide Guidance for Migration: Include a section or link to resources that help developers migrate from the deprecated package to the new package, including any changes in the API or best practices.

3. Code Example Updates: Update all code examples in the tutorial to align with the new packages, ensuring they work with the current Solana and Metaplex SDK versions.

4. Deprecation Notice: Add a notice at the beginning of the tutorial informing developers of the deprecation and directing them to the updated resources.

[mikemaccana]

Thanks @Mishragini ! We did deliberately choose the older, non-Umi version of Metaplex when writing this chapter as it's less complicated than Umi (there's actually a notice about this in the tutorial ), but it looks like Metaplex officially deprecated the JS SDK a few weeks ago and seems to have marked the JS SDK NPM package as deprecated at the same time.

We do have Umi code ready to go, but we need to decide whether we want to use it. I'm going to talk to my colleagues about this now.

[mikemaccana]

I'm assigning myself till all the courses are updated then will ping my colleagues about the other content
.

[mikemaccana]

Done - as of today all the courses are updated to use Umi.

Remaining uses of the metaplex-foundation/js are in:

content/cookbook/tokens/fetch-nft-metadata.md
content/courses/state-compression/compressed-nfts.md
content/guides/games/interact-with-tokens.md
content/guides/games/nfts-in-games.md
content/guides/games/nfts-in-games.md
content/guides/javascript/compressed-nfts.md