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EOS.IO : Recent Questions and Answers

Find answers to your questions about EOS.IO or help others by answering their EOS.IO questions.

Does EOSIO Have Native Contracts Built-Into Protocol Layer?

On the Bitshares site I read https://bitshares.org/technology/industrial-performance-scalability Based upon the lessons we learn from LMAX, we know that a virtual machine for a blockchain should be designed...

Asked on 01/05/2022 by mashup

1 answer

I have doubts about intercontract communication

I have read that:In order to call an inline action, that is to call an action of contract A from contract B, there is a need to set some special...

Asked on 01/05/2022 by coder

1 answer

What is the difference between std::string and eosio::string?

Why should I use eosio::string over std::string? What are the use cases where it would make a difference?...

Asked on 01/05/2022 by Phillip Hamnett - EOS42

1 answer

could not insert object, most likely a uniqueness constraint was violated

I started a non producing nodeos using latest snapshot to listen the eosio blockchain but i am getting an error. can any body help me? Error:error 2020-02-24T10:59:50.853 nodeos ...

Asked on 01/03/2022 by Zaigham Javed

1 answer

Eos-sharp jungle Error 3090003 when trying to call external smart contract

I’m trying to achieve something quite simple.I try to call eosio.token transfer from one of my smartContract (lomtaxjungle dopurchase), but after severals days i still don’t manage to do...

Asked on 01/03/2022 by Lomtax LADAMBERTI

1 answer

How to use scatter without node.js?

I am using scatterjs cdn.<script src="https://cdn.scattercdn.com/file/scatter-cdn/js/latest/scatterjs-core.min.js"></script>I thought I can use scatterjs by only importing simple javascript without node.js but it isn't working. Does anyone know an example using scatter.js...

Asked on 12/11/2021

2 answer

eosio.contracts and how it works

Hello guys I have a question about eosio.contrcats I am confused about when I want to deploy my contract and my contract use an esoio.contracts should I deploy them too...

Asked on 12/07/2021

1 answer

Error while signing a transaction using nodejs wallet API?

I am building an eosdapp using nodejs code.I got the wallet api from the developers portal,but when i run the code i get the following error.{"code":500,"message":"Internal Service Error","error":{"code":7,"name":"bad_cast_exception","what":"Bad Cast","details":[]}}The...

Asked on 11/24/2021 by sachin murali

1 answer

Ico smart contract update

I would like to update this code, because it is CDT 1.2.I would like to update for CDT 1.5 or CDT 1.6.What do I need to change?#include...

Asked on 11/22/2021 by Efraim

2 answer

CORs Error for /v1/chain/push_transactions To Production Block Producer (Not localhost)

All of my other POST calls to a production EOS BP are succeeding no problem. However, when I use push_transactions via ScatterJS I get a 500 CORs error.const networkJson...

Asked on 11/10/2021 by rsmets

1 answer

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