All Questions

#include <eosiolib/eosio.hpp> #include <eosiolib/print.hpp> #include <../eosio.token.hpp> using namespace eosio; These are the codes that i added for dependency at start but the ...

Is it possible to configure or change the "expiration": "2018-06-26T14:33:24", time? Currently its 30 seconds on my local node after I generate a transaction so I do not get time to execute it and ...

I am trying to construct a header of a transaction. So my question is - what is the difference between ref_block_num and ref_block_prefix in a transaction header and how to retrieve it? is there a ...

I am wondering if a BP crashes, how do the remaining 20 BPs know this? If they do not know, all block not irreversible so we can be hack? Please give me some details for this. Thanks!

I'm trying to access data inside a smart contract. The contract is visible here for example. The documentation for the smart contract is accessible here An example of an instance of the contract (...

I read some comment on reddit and this page, some people talked, EOS uses 21 BPs as active, and all of rest are standby. So I think EOS will use a server as a gateway to handle this like HAProxy, ...

Currently I am trying to do offline signing of transaction. In order to do that, I need to serialize the transaction and I need to use Fcbuffer for that. Following the step in the Fcbuffer link, does ...

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 (...

In chain_config.hpp I need a new field "alfa_opt". struct chain_config { ... uint32_t max_block_cpu_usage; ///< the maxiumum billable cpu usage (in microseconds) for a block ...

In ripple, bitcoin and ethereum you can sign a transaction and push/broadcast signed transaction hash only. That effectively represents the whole transaction. for example ...

I am new in the EOS. I collect eos from github source. After importing in the path mongo location and start mongo like separate process I started tests. One test has not passed 46/49 Test #46: ...

If delegate some cpu form accountnum11 to accountnum12, then I want to undelegate with the below command: cleos system undelegatebw accountnum11 accountnum12 '0.0000 EOS' '10.0000 EOS'. In normal ...

I am researching how to transaction work in Block producer(BP). I knew when BP received a transaction from user, maybe it start from push_transaction function then to apply_context::exec and ...

I'm working on EOSIO tutorial and now I'm workingon https://developers.eos.io/eosio-home/docs/data-persistence part. Right now, I'm stuck on deploying contract. jongbok@DESKTOP-96ICBPJ:~/eos/...

Apparently, Docker support has been deprecated: This image is now deprecated. Future builds will discontinue on January 1st, 2019. This image will be removed on June 1st, 2019. However, as ...

As per title, I'm using a key256 as a datatype for a secondary index on a multi-index table and want it to be unique. Can't find any documentation on it. TIA.

According to this DEC 5th update: "Added support to filter multiple accounts, receivers and action_names in the get_action_traces WS request. Please use that instead of doing multiple parallel ...

Today, I researched how people can vote 21 BPs in the EOS system, so I am wondering, is EOS fully decentralized or does it still use a server center?

How can I understand this code /** * Publish data to a channel. This data is *copied* on publish. * @param data - the data to publish */ void publish(const Data& ...

Is there a way to access the balance(of EOS or any token for that matter) of a given account using smart contract in the new CDT? Thank you

I am trying to add libcryptopp library to my contract but when I try to compile with eosio-cpp I get an error that header files cannot be found. This is my code: #include <eosiolib/eosio.hpp> #...

When executing eosio-cpp -I include -o eosio.token.wasm src/eosio.token.cpp --abigen over the eosio.token smart contract I get the following warnings: Warning, empty ricardian clause file Warning, ...

I am a bit out of my depth here but I'm trying hard to keep up. I'm trying to call a method from a smart contract on EOS. That's the Bancor Smart Contract I'm interested in in particular. Just for ...

I need help for an issue developing an EOS dapp. I want to call a contract function when someone transfer EOS to my contract. For this i used the apply method to call the function upon any transfer ...

I was looking at the Bancor's documentation and was particularly interested in the Bancor API, mostly the convert function as described here. I've seen that it says only ETH is supported as of yet ...

I am running EOS on my computer as a local network. I created a smart contract and am able to invoke the actions using both cleos commands and through eosjs. When I run cleos get table command I see ...

I have code working with Ethereum using nodejs and a send transaction. Is there an equivalent using eos? The basic task under ethereum is that A pays B with the server.js file making the transfer and ...

On Ubuntu 16 / Windows with Linux Module. For reinstalling EOSIO, I'm just removing my eosio_1.5.0-1-ubuntu-16.04_amd64.deb Then: wget https://github.com/eosio/eos/releases/download/v1.5.0/eosio_1....

cleos create account eosio mark prikey1 prikey2 if i run this it will show error Whether I must import key to default wallet or to eosio etc? Thanks

In eosio.cdt v.1.4.1 Calling twice in the same action eosio::transaction txn{}; txn.actions.emplace_back( eosio::permission_level(_self, "active"_n), "eosio.token"_n, "transfer"_n, std::...

I created a collection of wallets for a private EOS testnet and I can generate passwords for the wallets. For the private key, there seems to be just one given in the docs: ...

where to purchase ram and rent cpu and bandwidth? if I rent cpu and bandwidth with eos more than the three days limit what happens? how much it usually cost to run dapp based on eos? any good ...

I have a native build of EOS 1.1.4 on MacOS for developing and stress testing a smart contract. No problems. However, when I run the contract in Docker (on both Ubuntu and MacOS) I occasionally but ...

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(), "...

When using the get_head_info, the data is always pushed intermittently. For example, if there’s no data pushed in the first 1-5 seconds, then it would all come in on the 6th second. Is this caused by ...

Link to contract void receivedTokens( const currency::transfer& t, account_name code ) { if( t.to == _self ) { string cMemo = t.memo; string stringName(...

I am reading through the documentation of EOS Proxy contract but I am having hard time understanding the following You can do this from a smart contract without using this intermediate proxy. ...

Assert Exception (10) !action_type.empty(): Unknown action create in contract eosio.token This is my terminal now: gavin@dreambidio:~/eos/build/contracts/eosio.token$ cleos set contract eosio....

Setup local Docker EOS "nodeos" container. Process running fine. docker run \ --name nodeos -d -p 8888:8888 \ --network eosdev \ -v /tmp/eosio/work:/work \ -v /tmp/eosio/data:/mnt/dev/data \ -v /tmp/...

Where is the dfuse API endpoint to connect to the Jungle 2.0 Network?

I can't understand exactly. Is it possible to use not EOS based tokens (eth for example) for payment purpose in EOS dapp directly. Or it can be done only via 3rd party exchanges?

I want to manage a worker that loops over events and should finish as many tasks as possible in one transaction. Nodes have a config for max-transaction-time = 30. Is 30ms used on mainnet for all BP ...

I have a question about configuration of computer's block producer(BP). My question is: In 21 BPs, if have some BPs which have lower configuration of computer than other, they will never be approved ...

setting eos with pre-build binary is super fast with less errors. What is good thing with building from source?

This is my sample code. Tables are not generated when I compile the contract. Whats wrong? #include <eosiolib/eosio.hpp> #include <eosiolib/print.hpp> #include <eosiolib/transaction....

cleos --wallet-url unix://home/user/eosio-wallet/keosd.sock wallet list Unable to connect with keosd Error :- unix://home/user/eosio-wallet/keosd.sock; is keosd running? While Keosd is ...

In dpos system like eos, selected nodes take turns to create a block. How likely that they create a soft fork and the previously created block(s) get dismissed? Is there any statistics for it?

I'm syncing with mongo_db_plugin enabled. But, when I see 'acctounts' collection in mongo, createAt is time created in monogo, not actual eos mainnet. How can I query mongo to get accounts creation ...

I hear what EOS nodes have GraphQL plugin. Where I may get scheme and how connect them?

The docs state the Docker image is not maintained - https://developers.eos.io/eosio-home/v1.7.0/docs/introduction The Docker image is no longer maintained has been deprecated. The eosio/eos image ...