Store and retrieve huge binary files in off-chain

Question

Hi,

In Multichain 2.0, when you use the binary cache, you can directly append large binary files and then publish them off-chain from the cache.

However, when you want to retrieve them back, you get a huge HEX string which simply cannot be handled in memory, so how do you convert back to the original binary file?

Thanks!

Answer 1

The gettxoutdata command has optional parameters that allow you to retrieve part of the data only, by providing byte offsets and counts. This lets you retrieve the item's data e.g. 1 MB at a time.