The problem NFTY Gateway solves

Interoperability between dapps is one of the biggest concerns these days. Consider that gaming company A wants NFT data from gaming company B, which is stored only by company B. But with our package, anyone can clone/fork it and modify it accordingly and can run it independently to have their own NFT database snapshot of the network and can query the database faster, or just simply use our API to get those data. Which means that everyone is on the same page.

Challenges I ran into

1. Understanding Cairo and its types
2. Reading Blockchain with Starknetjs
3. Conversion between types,i.e. JS to Cairo type conversion and vice versa