If you are downloading many small blobs, use Promise.all() to trigger downloads concurrently rather than one by one.
If hosting on Azure (App Service, Functions), use @azure/identity for passwordless authentication instead of hardcoding keys. To help you get the best setup, could you tell me: download blob from azure storage nodejs
Streaming is the most memory-efficient way to handle large files. Instead of loading the entire file into RAM, you "pipe" the data from Azure directly to its destination (like an HTTP response or a write stream). javascript If you are downloading many small blobs, use Promise