What is the strategy for attachments using the APIs

Question

What is the best strategy for attachments using the APIs? Are the attachments inserted as a blob to the Multichain Blockchain, or is a path saved as a name value pair, while the attachment is saved on the file system?

Answer 1

You can publish binary attachments online (the default, where the full content is in the blockchain) or offline (where the chain only contains a hash for verification, and the content is delivered separately over the network to subscribing nodes). Either way, it's never a path to the file on a particular file system.