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Questions tagged [storage]

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0
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1answer
38 views

Storing database information into EOS

I have a bunch of user data and I want to store it in the EOS blockchain. Each user data doesn't exceed 1kb. At most it is just: name, phone, email, btc address, and btc private key (encrypted). I ...
1
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1answer
28 views

Where does everipedia store all of its data? What parts are centralized?

Everipedia stores large amounts of data like wikipedia. Where is it stored? And what parts are centralized?
2
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1answer
43 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 ...
2
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0answers
36 views

What is the latest development of EOS.IO Storage?

Does anyone know the latest development of EOS.IO Storage? This includes the determination of storage supply and the status of implementing IPFS. I found this article from BM, yet it was a year ago. ...
1
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1answer
195 views

minimalistic mongodb to query tx | config.ini

I setup a non-producing node and an API to let an app query user transactions. API is similar to the CryptoLions/EOS-mongo-history-API What is the most minimalistic and effective approach to ...
1
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1answer
41 views

Can we store documents in a table.If yes, Is this a right approach?

I want to store some documents in my smart contract that some users upload. Can I use table for storage? But second thing is table resides in RAM and this doesn't seems good to store data in Ram. Is ...
4
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2answers
92 views

EOS smart contracts and big data

Imagine situation when I need to save a big data In smart contract (for example 1000 000 000 row of information - or just 1 TB). In case of ETH it's almost impossible because gas price goes to hell. ...
2
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1answer
125 views

How multi index database sync in all eos nodes?

Contracts may change data in multi index databases, I wanna know how multi index database sync in all eos nodes? Option 1, all the eos nodes execute each contracts, so no need to sync. Option 2, only ...
3
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1answer
521 views

Size limit for transaction data?

From what I understand, there are 3 types of storage: RAM > Available to other contracts, but costs EOS to use Transaction data / logs > Not available to contracts, but also no ongoing cost, and ...
4
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1answer
122 views

Retrieving from Log Storage vs. RAM

I'm quite new to EOS. As far as I know, some of the output from smart contracts are also stored in the Log Storage. At the same time, I can also choose to store those outputs in RAM. My questions ...
2
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1answer
46 views

How is prevented that I just let any account pay for storage?

When I create new state with https://developers.eos.io/eosio-cpp/reference#emplace I have to enter the account that has to pay the RAM. How is it prevented that I just enter any account and let it pay ...
4
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2answers
73 views

Is it possible to request block producers to delete a file through IPFS?

I understand that files are stored using IPFS protocol, but that only creates a content hash and the file is stored by the BPs. Is there a way to request BPs to permanently delete a file then?
3
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1answer
144 views

Do dApp developers have to pay for contract instances RAM as well?

I wonder if you also need to take contract instance RAM usage into account as a dApp developer on top of estimating the persistent storage RAM usage (since it will have to be temporarily stored in the ...
2
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1answer
163 views

How to iterate over all entries in struct

trying to iterate a multi_index struct in my contract. I can iterate it brute force like this: studentIndex students(_self, _self); auto itr = students.upper_bound(0); ...
4
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2answers
190 views

When will EOS Storage be available? What alternatives can be used until then?

I hear that EOS Storage will not be available on mainnet launch. Let's suppose a developer is building a media-intensive dapp like Instagram. Where do you suggest she stores her images and videos in ...
4
votes
1answer
53 views

How are anonymous balances and records implemented

Daniel Larimer has said, "account balances can be made confidential but not source/sender." (Source: EOS Telegram group) How do confidential account balances work? How, if at all, does that technique ...
12
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2answers
934 views

Storing files on the EOS blockchain vs InterPlanetary File System

Everipedia wants to employ for their encyclopedia. They will be combining the EOS blockchain and the InterPlanetary File System, which is somewhat of a decentralized server, that will be used to house ...
5
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1answer
401 views

Will EOS Storage support only mongoDB or even mySQL, postgreSQL, Redis etc.?

EOS storage seems to support mongoDB out of the box, will it support other SQL and noSQL databases? If so, how do we go about installing postgresSQL on our testnet?
6
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1answer
93 views

Does EOS Storage support image, audio & video storage?

Where should media heavy dApps store their png, mp3, mp4 etc. files? Should dApps developers who have intentions of building DACs store media files in central servers like AWS S3 for a predictable ...