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13 Questions

Votes Activity Newest Views

votes

answer

views

can contract check mining of certain transaction in real time?

erc-20

Mar 12 at 23:02 Community♦ 1

votes

answer

views

Do dapps(contract) check allowance of buyer when he calls buy function?

Nov 7 '19 at 5:02 Community♦ 1

vote

answers

388

views

Is it possible to make approve and transferfrom in single transaction?

solidity erc-20

Oct 10 at 18:00 Community♦ 1

vote

answer

views

When I tap buy button in market how does wallet check my allowance instantly?

solidity erc-20 metamask cryptokitties transferfrom

Mar 31 at 13:02 Community♦ 1

vote

answer

views

Can I make a ERC20 transer after receiving and before N confirmations?

erc-20

Mar 16 at 7:01 Community♦ 1

vote

answer

views

How does contract of dapp figure out who buyer is?

transactions contract-design erc-20 contract-invocation

Apr 29 '19 at 8:44 Rob Hitchens 41.8k

votes

answer

views

Is it possible to give away ownership to another user regardless of dApp UI?

erc-20

Aug 9 '19 at 4:14 Mikhail Vladimirov 5,079

votes

answers

views

If I deposit A-tokens to contract, then contract owns A-tokens?

erc-20

May 22 '19 at 8:29 yseek 85

votes

answers

views

Let's suppose here are 2 EOA(A and B) and 1 contract

erc-20

May 22 '19 at 2:32 yseek 85

votes

answer

views

can A call approve B to spend token though A have no tokens in his account?

erc-20

May 16 '19 at 18:27 Rob Hitchens 41.8k

votes

answer

views

If i pay some service on certain dapp, does this tx can be reverted because of confirmation?

blockchain erc-20

May 16 '19 at 5:38 Lauri Peltonen 14.1k

votes

answer

views

I call buy function but another user pay token on behalf of me

erc-20

Apr 30 '19 at 5:38 Jaime 6,745

votes

answers

views

Is it possible to transfer ETH(not erc20) by approve+transferfrom?

erc-20

Apr 29 '19 at 8:00 Elisha Drion 2,371

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13 Questions

can contract check mining of certain transaction in real time?

Do dapps(contract) check allowance of buyer when he calls buy function?

Is it possible to make approve and transferfrom in single transaction?

When I tap buy button in market how does wallet check my allowance instantly?

Can I make a ERC20 transer after receiving and before N confirmations?

How does contract of dapp figure out who buyer is?

Is it possible to give away ownership to another user regardless of dApp UI?

If I deposit A-tokens to contract, then contract owns A-tokens?

Let's suppose here are 2 EOA(A and B) and 1 contract

can A call approve B to spend token though A have no tokens in his account?

If i pay some service on certain dapp, does this tx can be reverted because of confirmation?

I call buy function but another user pay token on behalf of me

Is it possible to transfer ETH(not erc20) by approve+transferfrom?