All Questions

I'm interested in checking whether a specific permissions has been passed to a method invocation (as opposed to active) and have read one can use the require_auth2 method but when I try it I get the ...

Why did EOS fail to catch up with the latest block since yesterday? It was always a few minutes behind The latest block that was chased before but now can't be synchronized to the latest block and ...

Has anyone used eosjs lib in ArangoDB Foxx service? I tried a little and faced the issue of not being able to use Node randomBytes package. I replaced var randomBytes = require('randombytes'); to ...

I'm learning how to navigate my way around with Cleos on the Web IDE release by B1 late last year. I know it spins up a personal chain but is there a way to connect to the public chain and publish a ...

async function sellRam(account_name, sell_bytes){ try{ const result = await api.transact ( { account: 'eosio', name: 'sellram', authorization: [ { actor: account_name, ...

Is there any limit on the number of permissions that can be created in the same EOS account?

When setting up a block producer server, what is the optimal hardware in order to produce blocks, where the criteria is: CPU speed must be as fast as possible at producing blocks Number of cores is ...

I would like to check in my contract the incomming amount. I tried these: void mycontract(name from, name to, eosio::asset quantity, std::string memo){ check( quantity.amount > 50, "must ...

Some time ago I created and issued one token. As I remember I used this guide. https://hackernoon.com/how-to-create-and-deploy-your-own-eos-token-1f4c9cc0eca1 (now guide looks little bit corrupted) ...

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/...

I am a developer coming here from Ethereum. Joining your Telegram chats and following the discussions in it, in my view, you have a lot of experience and helps the new devs. You are actually my dream ...

I am trying to setup a private eos for my app, I want to know if there is possible to change the usage of CPU, NET etc in private setup without staking tokens. If YES, then please guide me with the ...

I would like to use EOS to guarantee the integrity of my data stored in a database. Each time I save the data in BD I send the corresponding hash in the Blochain. My questions are as follows: 1- Is ...

const { Api, JsonRpc } = require('eosjs'); const fetch = require('node-fetch'); const rpc = new JsonRpc('https://api.jungle.alohaeos.com:443', { fetch }); let validAccounts =await rpc....

I would like to know what is the API which corresponds to this command: cleos push action contract_name action_name'[param1,param2]' -p count@active Exemple command: cleos get info API: http://...

How can I use a uuid as the primary. struct [[eosio::table]] blackboxdata { name user; std::string uuid; std::string hash; std::string sqlrequest; uint64_t ...

I've read that there is a new REX implementation to prevent users hogging up REX resources and causing transactions not to go through. How has it changed and how does it prevent users abusing ...

My question is in the context of smart contract development, so I'm looking for solutions that work within smart contracts: 1st: Is is possible to see the RAM delta of either an individual ...

async function openAccount (tokenCreator ) { try{ const result = await api.transact({ actions: [{ account: tokenCreator, //'eosio.token', name: 'open', //'transfer'...

I've got a basic contract working that issues a query and gets a query ID. however, the callback is never getting called. I have the CONTRACT_NAME and ORACLIZE_NETWORK_NAME set correctly (the latter ...

I'm entering query IDs I get when running on Kylin on this website: https://app.provable.xyz/home/check_query but it's failing to find my IDs. I have a feeling that site is looking at mainnet (even ...

in reading through this guide: https://docs.provable.xyz/#eos-advanced-topics I'm attempting to see the queries issued to the contract: cleos get actions oraclizeex1a -1 -4 --console but the account ...

I am trying to upload file on eos dapp but getting this error {\"code\":500,\"message\":\"Internal Service Error\",\"error\":{\"code\":0,\"name\":\"exception\",\"what\":\"unspecified\",\"details\":[{\...

I use the mongodb plugin and start nodeos --replay-blockchain, but something went wrong in the middle of replaying the transaction. At the same time, I found that during the replay transaction, mongod'...

in reading through this guide: https://docs.provable.xyz/#eos-advanced-topics I'm attempting to see the queries issued to the contract: cleos -u https://kylin.eos.dfuse.io/ get actions oraclizeex1a -...

I've created a test account on Kylin, funded it from a faucet, bought RAM and deployed a contract. when I try to call a contract method I get the above error my call attempt is made using cleos and ...

Every single example out there that shows how to use a secondary index in the EOSIO platform, including the scant documentation on the function found here: https://eosio.github.io/eosio.cdt/latest/...

I've followed the guide on the Provable site (https://docs.provable.xyz/#eos-quick-start-checking-the-query-id) but when I try to compile, I receive the following error (it's a warning but it's fatal):...

For example, A send a transaction t1 that will call the contract action act1, act1 will send a deferred transaction t2. Is it possilbe that let A pay for the cpu instead of the contract account?

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('...

Recently I downloaded the v2.0.0-rc3. I want to know how can eos_vm work on blockchain and when does it start. So I found it. void wasm_interface::apply(...) #ifdef EOSIO_EOS_VM_OC_RUNTIME_ENABLED ....

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 ...

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('...

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} = ...

Thanks in advance for any help. I can't seem to get on_notify to work (attempting to trigger for any tokens sent to the contract, but for the example I've tested both * and eosio.token) The method: ...

As i am new to EOSIO, can anyone please help me in creating a private permissioned EOS blockchain on a local machine.

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 ...

const ScatterJS = require('scatterjs-core').default const ScatterEOS = require('scatterjs-plugin-eosjs2').default const Eos = require('eosjs') const fetch = require('fetch'); //node only const { Api, ...

I have built a private blockchain with EOSIO, but when I change the block producer name to my custom name it doesn't produce any blocks. I'm following the tutorial from the boot sequence of EOSIO. ...

I see that public_key is public_key = std::variant<ecc_public_key, ecc_public_key, webauthn_public_key> While ecc_public_key is std::array<char, 33> How would I create a public key ...

when I used "cleos push action ..... or push transation .....",I used "--max-cpu-usage-ms" to limit the actions not consume more cpu usage. and choice the most economical way to send Non-emergency ...

I'm following the guidance at https://developers.eos.io/eosio-home/docs/notification-handlers where it states I can decorate a method with: [[eosio::on_notify("eosio.token::transfer”)]] however, ...

LLVM was designed the way(Picture). And I want to know if i understand correctly. Smart Contract is byte code. So EOSIO need to interpret the byte code. EOSIO use WAVM converting to Middle End IR ...

I have already run this code few week back and back then it was working perfectly but now its giving me error UnhandledPromiseRejectionWarning: Error: account names can only be 12 chars long I ...

async function sendEos (sender, receiver ) { try{ const result = await api.transact({ actions: [{ account: 'eosio.token', //'eosio.token', name: 'transfer', //'...

https://developers.eos.io/eosio-nodeos/reference#get_transaction-1 Api docs says that history plugin is deprecated. So v1/history/get_transaction is deprecated as well. Many eos nodes don't support it ...

I found a strange function(send_transaction) in eos. The function is used in 1.7 version. But It looks like doesn't used in 1.8 version. And the function is duplicated of the push_transaction. ...

I am trying to use a secondary account to pay for cpu/ram for the primary accounts eosio.tokens how do I do that using eosjs library My current action looks like this actions: [{ account: '...

My contract want to receive transfer with memo in json format, is there any libraries supporting the json parse?

Hey guys I'm hitting an error while trying to query my RAM tables - the table definition has vectors of custom structs in it, and for some reason throws an error regardless of the datatype in the ...