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Questions tagged [data-storage]

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How does session of chainbase work?

Do you have any knowledge about session of chainbase (It means: Each user we can create a session in chainbase and this session exits util user who be deleted. And The session contains many ...
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1answer
29 views

Can we use mongodb store state?

I read chainbase and fork database, I understood chainbase which stores user state and fork database which stores blocks. So Can I use mongodb to store user state and ignore chainbase? If it can, we ...
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1answer
24 views

What is mongodb_plugin used for?

I have some confuse with chain_plugin and mongo_plugin, why do we need them? And if I can modify chainbase which can write directly state to disk, Do I can discard mongoDB?
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2answers
60 views

mongodb sync is not fast enough

left side is instance(using google cloud platform) running nodeos, with below spec. n1-standard-8 (vCPU #8, RAM 30GB, SSD 1TB) using back-up block from https://eosnode.tools/blocks ...
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2answers
66 views

Can I use MongoDB for storing data locally instead of storing in RAM?

I found that storing data in EOS RAM is sometimes expensive in turn makes it impractical. Can I use MongoDB for storing such data locally instead of storing in RAM?
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1answer
34 views

is that a good way to gather smart contract action data in backend with Demux.js?

there is a Bill functionality in my DApp, which need gather millions of EOS action data to make up a token transfer data for front end to display. the question is, it takes quite a long time. if it ...
2
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2answers
60 views

Using Demux to store data offchain in EOS blockchain

Does anyone have any idea dea how to use Demux with EOS Blockchain. There is this repo where they give example how to use Demux. I want to ask if there is any example for how to "use Demux without ...
2
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1answer
35 views

Can you upload binary files to RAM?

Let's say I wanted to create a music midi dapp player where I store all the .midi files in RAM or should I store it in the blockchain (log?). Example: http://www.midishrine.com/index.php?id=85 Let's ...
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1answer
24 views

Onboarding new eos users to a note taking dapp

I have a note taking dapp on the Ardor blockchain and say I wanted to migrate it to EOS. Currently these notes are just palin text messages stored in the blockchain directly (ardor data cloud). In ...