Questions tagged [testrpc-to-ropsten]

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gas estimate in loop

I have two contract. I call function placeBid in other contract and i have warning gas estimation. help me. thanks. Can i call function which use gas in loop through other contract? How i can get ...
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1answer
40 views

how to pay for goods with tokens ERC20 [closed]

my english is very bad.i am sorry. I found an example of an auction where you can pay with ethers. I would like to pay with ERC20 tokens. Please tell me how to do this in the placeBID () and ...
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0answers
27 views

Can't Connect Metamask to Ballot Dapp?

I want to connect Ballot Dapp to Metamask but it Shows "rpc error with payload" and "ALERT: Trying to call a function on a non-contract address".
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0answers
21 views

a contract in ropsten test network got lost

I deployed a contract in ropsten test network via remix days ago. Today, when I opened the remix, the contract disappeared, then I need to re-deploy once more. Anyone know why? Thanks.
1
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2answers
72 views

Deploying and Interacting with smart Contract through infura from web3.py

I'm trying to deploy smartcontract on ropsten testnet through infura node in web3.py. here is my code w3 = Web3(HTTPProvider("http://ropsten.infura.io/<*Privatekey>")) # Instantiate and deploy ...
2
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1answer
504 views

RPC Error with Payload when using the Ropsten Test Network Faucet with MetaMask

I'm trying to obtain some test ether from the Ropsten Test Network with Metamask, but I keep on getting an "RPC Error with Payload", whenever I try to click on "request 1 ether from faucet". I ...
1
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0answers
83 views

Unable to deploy contract due to extremely high gas estimate

I'm getting issues with the following contract for no obvious reason (I'm banging my head over this problem last 8 hours), I'm getting: Gas estimation errored with the following message (see below). ...
1
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0answers
210 views

Error on running any contract in online remix browser using Injected Web3 with Meta Mask

On running contract, I am getting error as shown below: creation of VFCToken pending... creation of VFCToken errored: Error: Error: [ethjs-rpc] rpc error with payload {"id":7746970824019,"jsonrpc":"2....
2
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1answer
278 views

Geth fast sync takes way too long

I am syncing my local node with rospten test network with geth sync --fast, but it takes more than 24 hours, though 99% complete, i am not able to communicate with my token contract that was deployed ...
1
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1answer
585 views

Urgent help setting up ethereum bridge

I've currently download nodejs truffle, testrpc etc etc to set up my development environment. All I need to do is demonstrate the oracle service working. I've found that I need to 'set up an ethereum ...
1
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1answer
229 views

Testnet Blockchain Sync

I used geth for windows and ran it as a desktop app. Not sure if I am connected to public blockchain or testnet. How do I check which network is getting synced. ? (I want to download ropsten testnet ...
1
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5answers
2k views

Change web3 from localhost to Ropsten

I have a webpage that talks to a smart contract on testrpc. I connect using: web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545")); I have deployed my contract to Ropsten Test ...
0
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1answer
934 views

Problem connecting with contract deployed on Ropsten Testnet

I am having issues with calling functions of contract deployed on the Ropsten Testnet. Previously, I tested this on testrpc and everything was working well. I'm working on transfer of ERC20 Standard ...
4
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1answer
3k views

Issues connecting to the Etherscan Ropsten API via web3.py

I am developing a simple application that transfers tokens between users. The token in an ERC20 standard token. I am really new to the web3 and ethereum development world and I am confused by quite ...
2
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0answers
368 views

How to send ether from one account to another in a smart contract deployed on testrpc

I'm interested in writing a smart contract using solidity that sends ether from one account to another. What would the syntax be? If possible, could you point me to a solidity contract that sends ...
1
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1answer
280 views

execute function on ropsten tesnet thru geth, adapt truffle console/testrpc commands

This is the smart contract I'm trying to interact with, verified on etherscan.io, and reproduced here: pragma solidity ^0.4.13; // This contract demonstrates a simple non-constant (transactional) ...
2
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2answers
721 views

modify truffle console command to execute function on ropsten deployed contract thru geth

There are a couple of commands, reproduced below, which I've used successfully in the truffle console, executing on testrpc, which work and elicit the responses that I expect. How can I change them ...
0
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1answer
875 views

deployment of a functioning contract (testrpc) to ropsten with truffle/geth

I've developed a smart contract using truffle and testrpc, which can be found on GitHub here. At this point I want to deploy it to ropsten, but I can't figure out how to do that. After consulting ...