File Handling Question

Question

What is the best way to store files or should we really store file on the blockchain? if not, what are the best practices?

Answer 1

Publish the files onto streams using off-chain data. Background information here:

https://www.multichain.com/blog/2018/06/scaling-blockchains-off-chain-data/

Comments

Got it so i guess i will just hash the contents of the file and store it..

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If you use off-chain publishing within MultiChain, all of that is taken care of for you, along witih peer-to-peer delivery of the full file contents.

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I read this https://www.multichain.com/developers/enterprise-streams/ documentation(still confused) but without the enterprise, i can still able to do it?

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Yes, but with the Community version you cannot control read permissions on streams. Every node is able to see everything.

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i just want some clarifications.. it is possible to upload the whole content of a pdf file on offchain and retrieve it?

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Yes, in order for another node to be able to retrieve it, it should subscribe to that stream. (MultiChain Enterprise provides more control over retrieving specific items.)