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Questions tagged [blocks]

The tag has no usage guidance.

1
vote
0answers
45 views

How can I get all transactions made by an account?

I tried this history api of this function : func (api *API) GetTransactions(name AccountName) (out *TransactionsResp, err error) { err = api.call("account_history", "get_transactions", M{"...
2
votes
0answers
17 views

Is it possible to see the state of a multi index table for a given block number?

Does the ability currently exist in EOS to see how the state of a persistent memory table was at some point in the past?
3
votes
2answers
77 views

What is a fork database?

There is a mention of a fork database in the docs for the bnet_plugin. Could you please tell me what the fork database is and how is it related to the state of the nodeos node?
2
votes
0answers
76 views

list of confirmed and unconfirmed transactions of address / account

I wanna show users a list of confirmed and unconfirmed transactions of a specific EOS address or account name, using eosjs. Similar like a Ethereum block explorer. Any ideas or work arounds? If ...
1
vote
1answer
109 views

How exactly is the block height defined in EOS?

I wanna show users the confirmation height of their transactions. Which one is the way to go? Latest block - transaction block OR Last irreversible block - transaction block ?
1
vote
1answer
194 views

Can we get all the actions from all blocks?

Somebody say we can get all the blocks through rpc, then we can get all the actions. But I found that in the block information, there're no inline actions, so many inline actions will lose, right?
2
votes
2answers
64 views

How can I download all ledger blocks as a JSON dump?

I'm trying to download a relatively up-to-date dataset of all blocks in JSON format, but haven't found a good solution: cleos can only fetch blocks one by one ($ cleos get block n) which is way too ...
2
votes
1answer
41 views

Why does eos produce continuous blocks?

I am wondering about permanently producing blocks. Can someone explain why we need this ?
2
votes
1answer
269 views

EOS: How to get structured data within transaction?Is there restful API for this/

Suppose A sent a transaction to SC(smart contract), including structured data, for example: {"intention":"like","target":"ae16xx0...."} As usual, this transaction will be stored on all nodes in the ...
1
vote
1answer
50 views

Is a transaction(like token transfer) could fail after being sent? if so, how can I get information about it?

In EOSIO, we know that a transaction can be packed in block very fast, and we can also treat it as irreversible after "lastirreversibleblock >= block_num". Whether a transaction could fail after ...
3
votes
2answers
612 views

How to get current block number in smart contract? [duplicate]

How do I can get the current block number in EOS? (in ethereum, I can use block.number).
5
votes
2answers
352 views

What block hash function and transaction signature method does EOS use?

What hash function does EOS use for creating a block. Is it SHA-256? In addition, what procedure for signing a transaction is used? RSA?
3
votes
1answer
390 views

how to know if a transaction was include in block?

In bitcoin and ethereum blockchain, I can get transactions's details that not included in blockchain yet via api. but in EOS blockchain ,it seems that there were no such api to get those information. ...
4
votes
1answer
434 views

What is EOSIO max block size?

What is the EOS.IO software maximum block size? Does it even have such constant limit?
1
vote
0answers
58 views

How to validate a block obtained with /v1/chain/get_block

Lets say that from outside the chain I call /v1/chain/get_block http endpoint. I would like to be able to post that JSON back to a contract thru a context free action and validate that the block is ...
9
votes
1answer
233 views

Block data structure

Can someone explain the transaction_mroot, action_mroot and block_mroot used in block_header? I understand what a merkel tree is. Is transaction data actually stored in block or just the transaction ...
4
votes
1answer
87 views

How does a node acquire new blocks from the network?

When running a non-producer node on the EOS blockchain, how does the node receive new blocks as they are produced? Are they sent to it from a particular node? Can the software receive blocks from ...
12
votes
2answers
471 views

Can someone explain the transaction struct?

{ expiration: '2018-05-09T10:21:48', region: 0, ref_block_num: 1055, ref_block_prefix: 4035814219, max_net_usage_words: 0, max_kcpu_usage: 0, delay_sec: 0, What is expiration, ...
4
votes
1answer
84 views

Is the block digest c++ specific?

I'm not sure how to write this block header digest/hash generation in another language then C(++). Is this even possible without a lot of hacking? If so: Could a language-neutral format for the ...
10
votes
2answers
102 views

How often/consistent are blocks on EOS?

How often are blocks produced on EOS? Are they consistent? In Bitcoin the blocks are only mined on average within 10 minutes, not guaranteed 10 minutes - does EOS differ?