I am new to ethereum implementation

when i try to DO Solidity contract compilation and deployment process, I am getting the following error.Please do needful to fix this problem.

SystemCallError: unknown error - Unanable to run solc compliers
from /home/haloprabu/.rvm/gems/ruby-2.4.0@blockchain/gems/ethereum.rb-2.0.8/lib/ethereum/solidity.rb:35:in `execute_solc'

Please do let me know what might be wroung.

@client.new_account(@password).["result"] is not generating the new address . I don't know why please help me out

Hi,
I notice that the version on rubygem is 0.5.2 while the this repo holds 1.5.2.
Is there any reason that not to push it to rubygems.org? Or do you have any recommend that which version is more stable?

Thanks

My IpcClient is running on a docker container. So how am I going to point it's geth.ipc when I initialize this line??

client = Ethereum::IpcClient.new("#{ENV['HOME']}/.ethereum_testnet/geth.ipc")

hi, all. Thx for contributors nice work. 🍺
my geth service is deployed server A, and I want to connect it remotely.
and i found allow connect client by ipc locally only

client = Ethereum::IpcClient.new("#{ENV['HOME']}/.ethereum_testnet/geth.ipc")

Is there a way connect geth remotely? thx

Hey,

I know this is not the right place to post this, But i'm left with no option since I've tried stack overflow and multiple sources for help and none really did.

Can anyone guide me through storing and retrieving a simple JSON string using the blockchain?

Help is much appreciated.

What does this mean? I installed and pointed at Geth and that works but then get this after

init = Ethereum::Initializer.new("/app/assets/contracts/xxx.sol", client)

Great library!

But if I have a method that takes in a SIGNED integer of some kind, when I call that method, I get an error. I have verified these methods work fine in geth.

Here is the error:

NameError: undefined local variable or method `uint' for #Ethereum::Formatter:0x007fb913c7fc58

Not sure why that's the error message but I narrowed it down to only happening when I refer to signed int's in the call interface for a method.

I would love to use the events handling in this library. But how? There is no documentation on this. I see that every event in a smart contract has a gfc_event_name, gfl_event_name, and nf_event_name call, but no idea how to use any of these.

Please advise.

Binding Ethereum node into a Rails app, get 'JSON::ParserError: 776'.
I have a node running APIs via IPC like:

geth --ipcapi "admin,eth,debug,miner,net,shh,txpool,personal,web3"

and in Rails console I can do

client = Ethereum::IpcClient.new("#{ENV['HOME']}/.ethereum/geth.ipc")

but when I try puts client.coinbase["result"] I get and error:

JSON::ParserError: 776: unexpected token at '{"jsonrpc":"2.0","error":{"code":-32600,"message":"EOF"}}

Hi,

 While I perform any action, getting below error. Please help me.

757: unexpected token at '{"jsonrpc":"2.0","error":{"code":-32600,"message":"EOF"}}

Thanks,
Santosh

Seems like client.compile_solidity is not working. Do you have any work around for this??

client.compile_solidity("SimpleNameRegistry.sol")
=> {"jsonrpc"=>"2.0", "id"=>5, "error"=>{"code"=>-32601, "message"=>"The method 
eth_compileSolidity does not exist/is not available"}} 

hi, thx for contributors nice and hard work. I met a problem and look for help here.
I have build and deploy a smart contract, get the contract object in irb as follow

2.3.1 :067 > con = Ethereum::Contract.new("hello",contracts[0].code, contracts[0].abi)
=> #<Ethereum::Contract:0x007fa63617ab40 @name="hello", @code="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", @abi=[{"constant"=>false, "inputs"=>[], "name"=>"kill", "outputs"=>[], "payable"=>false, "type"=>"function"}, {"constant"=>false, "inputs"=>[], "name"=>"collect", "outputs"=>[], "payable"=>false, "type"=>"function"}, {"inputs"=>[], "type"=>"constructor"}, {"payable"=>true, "type"=>"fallback"}, {"anonymous"=>false, "inputs"=>[{"indexed"=>true, "name"=>"_from", "type"=>"address"}, {"indexed"=>true, "name"=>"_band", "type"=>"uint256"}, {"indexed"=>false, "name"=>"_value", "type"=>"uint256"}], "name"=>"Deposit", "type"=>"event"}], @functions=[#<Ethereum::Function:0x007fa63617a5a0 @name="kill", @constant=false, @inputs=[], @outputs=[], @function_string="kill()", @Signature="41c0e1b5">, #<Ethereum::Function:0x007fa63680ea10 @name="collect", @constant=false, @inputs=[], @outputs=[], @function_string="collect()", @Signature="e5225381">], @events=[#<Ethereum::ContractEvent:0x007fa6364219c0 @name="Deposit", @input_types=["address", "uint256", "uint256"], @inputs=["_from", "_band", "_value"], @event_string="Deposit(address,uint256,uint256)", @Signature="90890809c654f11d6e72a28fa60149770a0d11ec6c92319d6ceb2bb0a4ea1a15">], @constructor_inputs=[]>

there is event named Deposit in the contract, and i want to do as web3.js method in Ruby

var event = myContractInstance.MyEvent({valueA: 23} [, additionalFilterObject])
event.watch(function(error, result){
  if (!error)
    console.log(result);
});

But when coninstance call Deposit method, NoMethodError: undefined method `Deposit' for #<Ethereum::Contract:0x007fa63617ab40> error occur
meanwhile, when i call watch method by event object

2.3.1 :074 > instance = SmartExchange.new
 => #<SmartExchange:0x007fa63631b6e8>

the same error occur. 😦
Is there a way to call event.watch method as web3.js contract-events
many thanks.