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Questions tagged [decoding]

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Is Ethereum block header a list?

Decoding a RLP encoded block using Eth specifications do we get header as list? But as per format i.e., [[blockHeader,transactionList,uncleList],totalDifficulty], blockHeader should have been string. ...
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RLP decoding for a list

in many standard documentation and many blogs, I have found the example for list with two strings like below [“cat”, “dog” ] -> C8 83 636174 83 646F67 and thats how it is decoded 1) Retrieve the ...
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69 views

Quorum how to decode result returned by eth_getQuorumPayload api?

I've read the post How to get decrypted transaction data in quorum? I followed the api document and got the result by calling eth_getQuorumPayload curl -H "Content-Type: application/json" -X POST ...
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Encoded input params

I created a simple test contract with a single method: pragma solidity ^0.4.24; contract SimpleTest { function testFunc(string name, bool isFirst) public { //do stuff } } I'm ...
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0answers
168 views

How to decode Tx data? Online tool?

Is there a fast way to decode the data returning from a Smart Contract call? I know there are github projects with JS libraries to decode this kind of data (such as https://github.com/ConsenSys/abi-...
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115 views

Anyone with knowledge in org.web3j.abi.Type Decoder?

I am trying to decode a String with this code that I found but I have not been able to do it. String to = inputdata.substring(10, 74); String value = inputdata.substring(74, 138); Method refMethod = ...
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216 views

How to decode the input data in java?

I receive the input data as the image shows. And when I try to decode it with the method: String inputdata = null; Optional<Transaction> tx = web3.ethGetTransactionByHash(txHash).send()....
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1answer
695 views

How to unpack/decode parameters encoded with web3.eth.abi.encodeParameters in Solidity?

My client app (nodejs) packs some arguments to pass to a smart contracts as bytes _data (similar to ERC223 calls with fallback). I pack the arguments in my JS client like this: const packedArgs = ...