they should charge eth :smile:
or better gas
ty again
I was running a DAPP created using truffle and it was having trouble connecting on localhost:8545
When running like this
./build/bin/geth -testnet --rpc --unlock "0" --password "./build/password.txt” it would not connect but if I add --rpccorsdomain “*” it will connect
The documentation says this
'--rpccorsdomain Domains from which to accept cross origin requests (browser enforced)'
'--rpccorsdomain Domains from which to accept cross origin requests (browser enforced)'
The anti-sincelastblock reasoning on this github issue seems rather poor: ethereum/go-ethereum#1703
:nut_and_bolt: [xgo build bot] Published geth 1.4.0-unstable (27116bd) - develop branch
Disclaimer: All of these binaries have been cross-compiled from Linux. Their primary goal is to provide access to unsupported or experimental platforms. We cannot guarantee that a cross compiler will produce the same performing code as a native build will. For any issues found, please contact @karalabe.
~/.ethereum/chaindata
it's not a flat file, rather an internal node in a gigantic merkle-patritia trie data structure
how is this different from blocks (or transactions data)
who creates address of smart contract ?
Where do address of smart contract is stored ?
the only meaningful way is to use the Geth codebase as a library and write an arbitrary tool to fetch the data for yourself. It's not too hard, but you do need to know how to develop Go code and have at least some understanding of the Geth code. The database structure contents is organized in completely custom schemas and even changes from time to time.
The address of a contract is the Keccak256 hash of
<creator address> || <transaction nonce>
it's part of the protocol, noone creates it, rather everyone agrees what it will be based on the transaction contents
a smart contract doesn't have an address... rather an address may have code associated with it
the code is stored inside the database with other stuff belonging to the account (e.g. balance, nonce, data storage)
if you're really interested in the gory details, the state database is a merkle-particia trie. Essentially a key-value datastore based on fancy hashes. To retrieve the code of a specific account you'd need to first retrieve the account associated with a particular address and then retrieve the code associated with that account.