Questions tagged [contract-development]

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How to retrieve tx object within contract

I'm trying to retrieve tx within contract, but I only can find tx_hash using read_transaction. Anybody can help me?
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Unable to connect local node with EOS Studio using custom network mode

I have set up EOSIO using windows subsystem for linux (ubuntu 16.04). Nodeos and Keosd are running. I am able to get a response in browser using the chain api http://localhost:8888/v1/chain/get_info ...
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Is it possible to run RSA verification within contract

I am trying to implement RSA signature verification in a contract but am a bit stuck. I implemented RSA signature verification using BigInt, however, because of this, it is not possible to transfer ...
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Tools for development at the current stage of EOS

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 ...
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Is it possible to see the RAM delta of a multi_index table operation, or see who is currently paying for a row in a table

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 ...
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How to interpret the contract?

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 ...
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41 views

multi_index table get const_iterator at a specific position

is there a better way than a loop to get the value/const_iterator at a specific position in multi_index table? current: auto idx = _table.get_index<"name"_n>(); const_iterator b; int count = ...
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35 views

How to get active key within smart-contract

I need to get account public key within smart contract. I tried to find public keys in system contracts, but unsuccessfully. Anybody knows how to do it?
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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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env.is_feature_activated unresolvable while setting up eosio.system contract

I am following BIOS Boot Sequence. I want to set up my own private EOS network that's why I am setting up the EOSIO network. at step 1.12 I am not able to set the eosio.system contract it will give me ...
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Regex validation on smart contracts

Is is possible to use regex validation in a smart contract?