Questions tagged [transactions]

Transactions are one of the the fundamental mechanisms of communication between EOSIO accounts. Thus, questions may relate to aspects such as the process of sending, receiving, validating, and creating transactions, as well as transaction properties, components, limitations, and other related functionalities.

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1answer
145 views

How to confirm if a transaction is confirmed for a wallet app?

Our wallet client wants to check if a transaction issued by some an account is confirmed or not. I know history_api_plugin provides API for query actions related to the account. But if the filter for ...
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27 views

Can I determine the number of actions implied in the actual running transaction?

transaction_size() returns the size in bytes but is not useful to determine the number of actions implied. Can I get the count?
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0answers
35 views

Is there any index to be used to get transaction history for a certain-aggregate Id?

I was wondering if EOS blockchain could be used as event-store for event-sourcing. At least, we should be able to retrieve history with an aggregate id. Of course, we can use the EOS account name as ...
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0answers
29 views

Why are some exceptions not returned?

Sometimes, if an action failed, the details of the exception are returned and sometimes not. However, in the node log, we always can see what happened. When is the detailed exception returned and ...
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0answers
22 views

serialization limit and executed transactions are lost

I get a lot of "serialization time limit 15000us exceeded" when sending transactions to the EOS mainnet with eosjs. Also, a lot of the transactions return status = executed, but are not found on the ...
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2answers
35 views

How to get Block Number

Which is the accurate method to get the block number to which a transaction is written after executing a transaction? The resposne of push_transaction API is not accurate Can anyone help me with ...
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1answer
76 views

Is it possible to deploy contract via curl?

Using command line i am deploying smart contract "eosio.token". cleos -u http://127.0.0.1:8888 set contract eosio.token ./eosio.token -p eosio.token Is it possible to deploy smart contract using ...
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1answer
125 views

Transfer tokens inside a smart contract from an account to another account

I need to write a simple function that would send tokens using a different account action. Exactly the same situation as in these questions: one and two But I have to use not eosio.token contract but ...
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0answers
187 views

How jungle test net show account history?

I am getting a history of account on jungle test net. Like this: cleos --url http://junglehistory.cryptolions.io get actions <my account> -1 -2 -j The problem is it shows the actions till 14 ...
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1answer
49 views

validate the identity of the chain

as a non-block producer, how do I know I'm uploading a transaction to the true eos blockchain and not an impersonator? What methods exist to verify that? Example: websites use certificates.
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34 views

Multiple action_traces, which one is the “good” one?

Sorry if I'm asking a lot of questions but you're really helpful and I'm getting a better understanding of the platform every day thanks to you ;) I'm having a hard time figuring out why some ...
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2answers
177 views

Get the last transaction from the blockchain

I'm looking for a way to get the latest transaction recorded on a particular account. For example, I'm trying to get the latest transaction for "newdexpocket", how can I do that using nodejs? Here's ...
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0answers
178 views

List of transactions from a contract

I've been on this all day and can't figuring it out on my own so I'm reaching out for your help ;-) How can I get the list of ALL the transactions associated with an account? I've tried to play ...
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2answers
256 views

How to transfer/deposit tokens on Front end Dapp with Scatter?

I am working on an EOS frontend Dapp with Scatter on local chain. I am getting a problem with transfer/deposit tokens from one account to another. After logging into scatter with "test1" and trying to ...
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300 views

How to call a contract from scatter

I want to make a transaction with Scatter but I'm getting this error function callContract(){ const account = scatter.identity.accounts.find(x => x.blockchain === 'eos'); const ...
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0answers
63 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{"...
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244 views

Using recover_key with eosjs

I want to validate user signatures in my smart contract. As I understood, I am supposed to do that with recover_key function from crypto.h I am using JavaScript with eosjs and eosjs-ecc for ...
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0answers
279 views

How to pack a transaction to be pushed to rpc using push_tranasction?

Im trying to figure out exactly what is expected to pack a transaction. I've written a class to pack my transaction based off of a couple of opensource projects I've seen. First of all is there any ...
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124 views

unpack_action_data - error: !“unresolvable”: env.free. #

I am trying to use unpack_action_data. void apply(const account_name contract, const account_name act) { if (act == N(transfer)) { transferReceived(eosio::unpack_action_data<...
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0answers
46 views

When a client receives a transaction id, what does that mean?

When a client submits a transaction to a node it receives a return code including, if successful, a transaction id. What does receipt of this transaction id indicate? Does it indicate simply that the ...
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12 views

It is possible to get transaction without the block number?

I would like to know if is possible to get transaction without the block number, or how to get the block number corresponds to the transaction ID. Error 3040011: The transaction can not be found ...
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8 views

EOSIO calculate transaction_mroot

As a general task i am trying to reverse engineer the production of a Block. With the help of EOSJS i was able to make a transaction from scratch and i can de/serialize it and sign it and so on. Now i ...
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0answers
11 views

EOS and IOT to check integrity

I would like to check the integrity of the data sent by the IOT device using EOS. It is the hash of the data that is stored in EOS but the data is stored in the database. I used a smart contract to ...
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1answer
22 views

Error: fetching abi for eosio: deadline exceeded by xx us

When launching a transaction like: await eosioApi.transact({ actions: [ { account: "eosio", name: 'newaccount', authorization: [{ actor:...
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1answer
28 views

Monitoring transactions on a private blockchain

I just started working with EOSIO and I created a private blockchain with 4 producersfollowing the bios boot sequence tutorial (https://developers.eos.io/welcome/latest/tutorials/bios-boot-sequence). ...
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1answer
24 views

Contract transaction cannot be found after i get result of pushSignedTransaction

I've send a contract trans on mainnet use eosjs@20, and i've tried for 4 times, every time i get a trans result, but all of them seemed been drop, i cannot find them on explorer or on chain, can any ...
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0answers
22 views

RECENT BLOCKS RECENT TRANSACTION

How I can do this with local Blockchain, I would like to have the RECENT TRANSACTIONS and RECENT BLOCKS. I use these two APIs: http://host/:port/v1/history/get_transaction http://localhost:8080/...
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1answer
26 views

Error: assertion failure with message: comparison of assets with different symbols is not allowed

I am trying to create and account from another account, both on JungleNet. I am using junglenet rpc. Here is my code: const {Api, JsonRpc} = require('eosjs'); const {JsSignatureProvider} = require('...
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0answers
19 views

Only including serialized action data in transaction

Typical eosio transactions fall just outside of the amount of data that can be sent over a LoRa radio frequency network packet. Is it possible to pack a transaction and submit it to the network with ...
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1answer
29 views

Error: Number is out of range

I am trying to create and account from another account, both on JungleNet. I am using junglenet rpc. Here is my code: const {Api, JsonRpc} = require('eosjs'); const {JsSignatureProvider} = require('...
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1answer
99 views

Error: fetching abi for eosio: unknown key

I am trying to create and account from another account, both on JungleNet. I am using dffuse for my rpc. Here is my code: const {Api, JsonRpc} = require('eosjs'); const {JsSignatureProvider} = ...
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1answer
36 views

Unsupported abi version

I am making an offline transaction. I am providing the API with the following parameters as an object: rpc: new JsonRpc('https://jungle.eos.dfuse.io/', { fetch }), signatureProvider: new ...
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1answer
10 views

What should I do to specify an optional action parameter for cleos?

I wrote an action that has an optional parameter, as something like: [[eosio::action]] void foo(..., const std::optional<name>& recipient); Then in the generated .abi, it is represented as:...
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0answers
12 views

Transfer the transaction again after it was not appearing in blockchain explorers

I was sending the transaction using the command like: cleos -u "https://eosapi.blockmatrix.network:443" transfer {account_from} {account_to} "{amount} EOS" "{memo}" and got the problem with one ...
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1answer
41 views

Are all actions on a transaction supposed to be included in the block?

I've noticed something strange that is confusing me. I have a transaction that includes multiple actions on it, but it appears that the "transfer" action did not get recorded in the actual block. You ...
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32 views

EOS CPU Full i'm do nothing

Why CPU max overflow what I do nothing. Just I looked at https://bloks.io/ (or) https://eospark.com/ Of my account. Last Transaction is Oct-07-2019, 11:18:08 PM. to now is Oct-09-2019.
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33 views

Catch errors when calling deposit

When I send EOS in a contract to several recipients, it can happen that this fails, e.g. because a recipient has a contract running like that: Example contract of one recipient: [[eosio::on_notify("...
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1answer
40 views

How to operate the get_actions endpoint to get transaction history

Following what I think is the official EOS documentation for get_actions . I stumble upon the parameters pos and offset, but they are not documented anywhere. Can somebody explain to me, what these ...
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1answer
16 views

Signing a transaction: string(22) “Internal Service Error”

I'm using the jungle test chain jungle.eoscafeblock.com:8888 endpoint and import the private key to my local wallet, but when trying to get signature throuth local keosd api /v1/wallet/sign_signature ,...
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82 views

When deploying a contract what is important (overall contract/wasm size or amount of functions etc) to not get transaction took too long

when I try to deploy the system.contract I sometimes get transaction took too long with the new eosio version 1.8.1. Now I would like to know on which part of a contract do I need to pay attention ...
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59 views

Reversing a transaction

Let's say I send a friend some EOS tokens. For a short period, the transaction is considered reversible because it is not included in an 'irreversible block'. What are the possible ways in which this ...
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0answers
36 views

Transaction signing error

Good morning, everyone I use EOS UAL to login at frontend, and it works, but there is troubles while signing transaction. Done signing like in an example https://github.com/EOSIO/tropical-example-web-...
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55 views

How to decode the data field

I have the below hex data as part of a generated transaction. Before I broadcast the transaction I want to know what the hex data says in a human readable form. Is there a simple way to convert this ...
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0answers
26 views

How to implement cold wallet signing in EOS with a long transaction timeout

I'm building a cold wallet with some built in delay (say, 2 hours) between when the transaction is created, and when the transaction gets broadcasted. From reading the source code I see that the ...
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25 views

When transaction could be lost?

We meet several cases that a transaction is executed in my node, but finally it is lost, and not seen in the blockchain browser, I'am somehow defused that why it could be lost? My CPU&NET resource ...
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60 views

Error while pushing a transaction using python?

after successfully signed the transaction, when i try to push it using the pyton api from the eos developers portal, i got the following error {'code': 500, 'message': 'Internal Service Error', '...
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1answer
67 views

What is the ledger in EOS?

When I create a smart contract, e.g: game. what does the ledger store? (EOS tokens, or heathy points, level of user). If the ledger stores heathy points, level, so how I can push it into block (...
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2answers
71 views

Send ID for transaction inside smart contract can not be _self

With the last CDT, to send transaction inside smart contract, here is my code eosio::transaction out; out.actions.emplace_back(eosio::permission_level{get_self(), "active"_n}, get_self(), "...
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195 views

Are multiple actions in a single transaction guaranteed to happen sequentially?

Suppose I have a transaction with two actions, A and B, listed one after another. Like this: { <...>, "actions": [ { "account": "my.token", "name": "action_a", <...&...