Questions tagged [ropsten]

Questions related to the Ropsten testnet: https://blog.ethereum.org/2016/11/20/from-morden-to-ropsten

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171 views

How to run geth for ropsten and mainnet in a same server?

Is it possible to run geth for ropsten and mainnet in a same server if I changed all the port for Ropsten node trying not to conflict the ports used in mainnet? For example, geth --rpcport 8546 --...
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1answer
55 views

Geth syncing fast Ropsten too long delays between importing new segments

i have a problem with my Geth Ropsten node. Time between importing new segments of chain is too long. For example logs from my docker container below geth-testnet_1_6d184080c9e1 | INFO [02-11|13:30:...
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2answers
64 views

Unable to fetch output from a public function in solidity

I am writing a solidity public function that changes the value of state variable and then returns it. pragma solidity >=0.4.22 <0.6.0; contract white_label { uint currentId = 1; ...
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0answers
35 views

Ropsten issues - two forks happening, transactions showing in both places

There seems to be a few issues going on with ropsten right now: https://twitter.com/sbetamc/status/1092167042709573633 https://twitter.com/stevenleeg/status/1092546643604459521 At the same time, a ...
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1answer
118 views

geth event newPendingTransactions does not occur

I've got running geth with next command: $ geth --testnet --networkid 3 --verbosity 3 --syncmode light --ipcdisable --ws --wsapi "db,eth,net,web3,personal,txpool,admin,miner" --wsorigins '*' In ...
2
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0answers
178 views

Error when I try to deploy with infura

Running migration: 1_initial_migration.js Deploying Migrations... ... 0x0ed88dd40f380a805ed0ba1b5b0a9d8178321ab6da9e5c0cb247f5700337b173 Migrations: 0xcfc4ba0488f20c7a2bb24e735f43e240bf249bc8 Saving ...
1
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1answer
127 views

Minimum system requirements for mining ropsten ethers

I want to create my own faucet that will mine Ropsten ethers. What is the minimum system configuration which is required? Is it a good idea to use my own server such as AWS? What will be the ...
1
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1answer
27 views

What are the advantage of verifying source code in Etherscan?

I deployed a smart contract in ropsten test network. Now when I try to verify the source code, I am getting some error. What if I do not verify it?
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1answer
48 views

How much does the gas prices in the main eth network differ from that in the ropsten test network

I'd like to know, to which degree does the Gas prices from the main eth network are comparable to the ropsten test network.
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1answer
42 views

Interacting with Already deployed Ethereum Contract and recording response

I understand this topic has been discussed before, but my question is specific to web3.py. How can I interact with function of already deployed ethereum contracts on Ropsten TestNet. my code runs with ...
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1answer
37 views

How to configure APIs to run with Ropsten addresses

I have my contracts deployed on Ropsten network. I deployed those contracts from my local machine using Truffle migrate. Then I set up an AWS EC2 Ubuntu server to host my RESTful APIs. I installed ...
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3answers
265 views

How can I call a function in deployed contract on Ropsten Testnet when I don't have ABI and source code?

For some testing I deployed several contracts on Ropsten Testnet using web3.py but now if I want to execute them or call any function from them, how can I do this? I don't have ABI as I did several ...
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0answers
63 views

How to generate Ethereum accounts using Web3 Python on Ropsten?

Just wanted to know how to use web3.py to generate Ethereum accounts. I tried using ropsten.infura.io/v3/<KEY> as an HTTPProvider, but it does not allows to create me account
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27 views

Matching inside my contract fails with multiple participants

my contract (can be found on my gist: https://gist.github.com/fabs993/e13fa6ecd9526d30c8a6d85c10180075) fails at more than 5+ participants. So in my use-case I have two kind of participants Producer ...
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2answers
1k views

Where can I get Ropsten Eth?

I want to create my own coin but I want to experiment first. I'm trying to deploy in the Eth wallet. All the websites to get Ropsten eth are down.How can I try making a coin without spending any money?...
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0answers
65 views

Metamask not loading transaction fee on Ropsten

I'm trying to send test Ether to a contract on Ropsten, but Metamask won't load the gas options on the send transaction screen. It displays a "Loading" text and never renders the Fastest/Fast/Slow ...
2
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0answers
42 views

Ropsten chain not syncing

I started syncing my ethereum ropsten chain using geth 3 days ago in fast mode. eth.syncing shows false , but the difference between highest block shown by my node and the one shown at ropsten ...
4
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2answers
299 views

web3.eth.getGasPrice() always return 1GWei

For estimate transaction cost, I use web3.eth.getGasPrice() function. The return callback value always 1Gwei(1,000,000,000) in ROPSTEN. web3.eth.getGasPrice(function(error, result){ console.log(...
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2answers
667 views

ropsten: insufficient funds for gas * price + value using web3

Im using "web3": "^1.0.0-beta.37" And I want to understand How can I send rawTransaction My code is: const pk = 'xxxxxxx'; const rawTransaction = { "to": "...
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1answer
188 views

Transactions on Ethereum private network using the MetaMask Ropsten test connection?

I have 4 accounts on my private blockchain ethereum network and one of the account has balance of 10000000000000000000 and other accounts have zero balance each. When I connect to this network from ...
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0answers
63 views

Mainnet sync Broken

I am having a Mainnet on Azure VM which was syncing the network as expected, but mean while after adding Ropsten network syncing on the same VM simultaneously I'm facing problem with Mainnet sync ...
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0answers
107 views

Connection of web3 with Ropsten

How do I connect my web3 to ropsten network. I know how to pass the url of ropsten netwrok in web3 instance in my script tag but when i try to to console.log(web3.eth.defaultaccount) it gives me ...
1
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1answer
32 views

Event firing before data is actually set [Testnet]

Today I've faced the behavior similiar to this post. Event firing before data is actually set I'm getting events using infura and then checking for the state. I expect to read updated blockchain ...
0
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1answer
93 views

Any option to get larger amount (i.e. 2000) of Rinkeby Ether?

We are planning to open our product to the public for live testing. We want to support both Ropsten and Rinkeby networks, just in case. When registering, each user should get around 10 ether on ...
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2answers
78 views

How to access API's from smart contract deployed on Ropston network from local Machine?

I want to access API's from a smart contract deployed on Ropsten network. This smart contract is written and deployed by some external entity and they have exposed API's. I know the smart contract ...
0
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1answer
49 views

Is there a boilerplate dApp on Github which uses uPort, truffle and infura on the ropsten testnet?

I am developing a dApp using those technologies and facing difficult problems when trying to save information on Ropsten. I can't approve my transaction via uPort because the selected account balance ...
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2answers
36 views

Tokens on a Contract

Want to get tokens amount sent to my contract address on chain, but don't know address of token. Can I get through any function ? Any possible way to so ?
0
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1answer
66 views

Ropsten Ethereum not showing transaction information

I am using geth 1.7.3-stable-4bb3c89d to sync with Ropsten network. I started synchronization with fast mode and restarted the service. When I type eth.syncing in geth console it always shows false ...
1
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1answer
71 views

List of Token Exchanges Available on Testing Network?

Found Kyber Network Token Exchange on Ropsten so far. Please share if you know more token exchanges available on any testing network for trading Tokens as a test.
1
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2answers
469 views

Syncing with Mainnet/Ropsten blockchain

If use gethcommand,then the node starts to sync with Ethereum Mainnet by default.If usegeth --testnet --networkid 3 --datadir <testnetdatapath>,then the node will connect to Ropsten. How does ...
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2answers
172 views

Transaction Hash after deploying contract with Web3.py too long

I managed to successfully deploy a contract using Web3.py to the Ethereum Ropsten network using this bit of code def deploy(self): instance = self.w3.eth.contract(abi=self.abi, bytecode=self.bin) ...
1
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1answer
602 views

How to generate test funds for Infura Ropsten Network wallet

I have been using Web3.py, and Web3's TestRPCProvider to create some utility functions in Python to deploy a smart contract meant to generate an ERC20 Token, and then communicate with that smart ...
0
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2answers
179 views

How to solve insufficient funds (Ropsten)?

I have tried adjusting the Gas Limit and GWEI and I get this error. I am using infura and Ropsten. Has anyone any ideas about this? Code - var rawTransaction = {"from":myAddress, "...
1
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1answer
181 views

Syncing on Ropsten taking too long

I am running geth on a debian system and on testnet ropsten. However I notice it's not always fully synchronized. Is this due to the network, the program, or the machine itself? It's always about ...
2
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2answers
64 views

Transaction rolled back and re-mined later?

A few hours ago, I was testing my dapp on ropsten and something strange happened. I sent a transaction (A), to the blockchain, it got mined and my server synced it. Then 30 minutes later, I sent ...
0
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1answer
134 views

Need help in deploying a dapp on Ropsten without truffle

I am trying to deploy a Decentralized application on Ropsten without using truffle (trying to challenge myself), but for now I am stuck at few places, the deploy.js file which is supposed to deploy ...
0
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1answer
23 views

Strange Ropsten Bug - transactionsRoot and recieptsRoot has same value

I'm testing some stuff on Ropsten network and I've found strange block: 4138624 When I run (using web3 injected in Metamask): web3.eth.getBlock(4138624,function(err,res){ console.log(res); }) I'm ...
1
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3answers
428 views

Unknown account error while deploying dapp on Ropsten testnet

While trying to deploy/migrate a dapp to Ropsten I get the following error: C:\CrowdBank-master\CrowdBank-master>truffle.cmd migrate --reset --network ropsten Using network 'ropsten'. Running ...
0
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1answer
230 views

How can I withdraw ether balance from contract to a personal account?

How can I withdraw ether balance from a contract to a personal account? İ tried but I couldn't do it on Ropsten. Could anybody tell me step by step how to test this? Thanks.
2
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1answer
112 views

Using Event API of Ropsten

I wanted to get the details of the following transaction hash : https://ropsten.etherscan.io/tx/0x8b43cf5e2c9d4eabb1121036de3d60354f64e9ccc6004caccba0e478c50ed2e6. And Ropsten has got an API to get ...
2
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1answer
193 views

Getting large amount of ropsten ether

I want to get about 150000 ropsten ether for testing. Is there any way to get it? I've seen some faucet websites but they have limitations.
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0answers
45 views

Why Ropsten Testnet has Total Ether Supply < the biggest ether holder balance?

Let's see two below image that I cropped them from ropsten.etherscan.io. Can someone tell me why Total Ether Supply < the first address balance?
1
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1answer
243 views

How to access a deployed smart contract attributes using web3.eth.contract(abi,address) in python

web3 = Web3(provider=HTTPProvider(http://ropsten.infura.io/v4/API_KEY) abi = '[{"constant":false,"inputs":[{"name":"_utxoPos","type":"uint256"},{"name":"_txBytes","type":"bytes"},{"name":"_proof","...
1
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1answer
106 views

Running out of gas when deploying contract in Ropsten Testnet

I am trying to create a Fomo3d clone contract in Ropsten testnet for debugging purpose. Here is the code: https://etherscan.io/address/0xa62142888aba8370742be823c1782d17a0389da1#code But I am ...
2
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1answer
420 views

Cannot connect to any ethereum networks using API key

I followed a tutorial about how to connect web3 with ethereum networks. I registered in infura.io and get all the urls. But when I try to connect to any network it is not connecting.When I print web3 ...
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0answers
82 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
37 views

How can i deploy contract with > 4.7 Mgas required on Ropsten?

I was able to deploy contract that requires more gas than default Ropsten block gas limit: https://ropsten.etherscan.io/tx/0x7c40cd2c539c03d110da8988641518ff6ff907a284f5074ed3d8517eb80b51f9 (5594037 > ...
2
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1answer
133 views

Created Crowdsales contract, sending ropsten ETH to the contract and Failed

I created crowdsale contract - https://ropsten.etherscan.io/address/0xfbb2759ef0b7169d0a2effa971845ea0f99f87b1 My token - https://ropsten.etherscan.io/token/0x0f26c1c05f1bbBC7Eff0488F1a98619e8a9758cf ...
6
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2answers
487 views

Is it possible to use “Oraclize” on a testnets such as “Ropsten” or “Kovan” or “Rinkeby” or even local blockchain such as “TestRPC”?

Is it possible to use Oraclize on a testnet such as "Ropsten" or "Kovan" or "Rinkeby" or even local blockchain such as "TestRPC" ?
0
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1answer
140 views

Why is the different “highest block” of --network id 3 and --testnet?

I think both of --network id 3 and --testnet mean to the Ropsten network. But, The result of "eth.syncing" differ from each. --testnet result "highestBlock: 3852529" $ geth --testnet console 2>&...