Questions tagged [access]

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TypeError: Indexed expression has to be a type, mapping or array (is function (address) view external returns (string memory,string memory…)

I have 2 contracts first one is sub second one is main . First i deploy main and create a new subtoken. Then I want to access my maincontract in subToken contract but I cant :( When I compile this ...
2
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1answer
2k views

Where is ethereum and etc stored on my desktop when using Jaxx wallet?

There was an error when opening my jaxx wallet for windows 10 desptop (containing eth and etc), and my computer suggested to reinstall the application. Without thinking, I deleted the jaxx files (but ...
2
votes
1answer
227 views

Smart Contract to access to website

We want to create a simple smart contract: After the click of a "pay"-button, you have to pay automatically 0,01 ETH to our wallet and you can visit after the confirmend transaction a website/link/...
1
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0answers
24 views

VM error: revert. revert The transaction has been reverted to the initial state. Note: The called function should be payable if

Hi Guys 👋 I have two contacts first one is SubToken and second one is MainContract. First I deploy MainContract after that I use createNewContract function and I create new SubToken. and then I ...
1
vote
1answer
36 views

Is there any way that smart contract can access xacml policies?

I am trying to implement role based access control model using blockchain. How do i store these policies? Later my smartcontract should be able to allow or deny the rquest of user based on policie. ...
0
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0answers
12 views

How to verify access of child contracts?

I am using a factory A to produce child contracts. Now I want to guarantee that only these child contracts have access to a different contract B. Using the factory as a proxy is somehow a detour as I ...
0
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1answer
118 views

Decentralized Access Control in permissioned Blockchain

For a business use case I am conceptualizing for my master's thesis, wich is based on a Blockchain system, I need to understand impacts on decentralization/trustlessness. Many people argue that ...
0
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0answers
46 views

Controlling access to functions with VIEW visibility with signed transactions?

Controlling access to functions that require ETH is straight forward because you get an address you can trust because it has been signed and verified, and therefore upi can use for access control ...
0
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1answer
255 views

Move ERC20 tokens from Ethereum Wallet Contract to Account

In my Ethereum wallet i am trying to access my wallet conract. If I sync in light mode and import the wallet contract address it just stays there displayed, greyed out and nothing happens, no matter ...
0
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1answer
59 views

Fast access of any given transaction in the blockchain

That is a conceptual question that I am asking here. We are trying to developp an application to securely store the hashes of some files in the blockchain. Everything is automated (taking a file as ...