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4 votes

Where is the best place to acquire large amounts of testnet eth?

The Chainstack Faucet distributes test tokens for the major Ethereum networks and more. You can get tokens for: Ethereum Sepolia — Use it to test DApps and smart contracts Ethereum Goerli — Use it to ...
Dave Dev Advocate Chainstack's user avatar
2 votes

Seeking testnet and wallet for students to learn how to use ethereum?

Every MetaMask instance comes with a default node to a few testnets, so all you need to do is install MetaMask and switch in there to a testnet (eg Ethereum Sepolia or Ethereum Holesky that's ...
Ake's user avatar
  • 1,149
2 votes

Storing MQTT on Ethereum Chain or is there a better way?

One way to achieve this is to create a smart contract that acts as the storage interface. The smart contract should hold a data structure for your data, and have functions to write to and read from ...
Bastin's user avatar
  • 146
1 vote

How are network changes propagated across ethereum network?

These changes to the protocol rules can be made through a software update to the client software (e.g., Geth, Nethermind). Each node operator can choose whether to upgrade or not. However, if they ...
Ougi's user avatar
  • 155
1 vote
Accepted

How to determine whether code is running in a JS VM such as Remix, as opposed to ETH mainnet?

One way is to check block.number. In the Remix VM environment, it will increment rapidly with each transaction or block mined. However, on the ETH mainnet or testnet, it will progress much more slowly,...
SYED ASAD KAZMI's user avatar
1 vote

Does Uniswap allow testing swap on testnets?

It does support testnet mode. The error you are getting is regarding low liquidity, try swapping fewer tokens or adding more liquidity to the pool. Also, share the pool so the community members can ...
Zartaj Afser's user avatar
  • 4,434
1 vote

I want a GRT tokens faucet site or any link where I can buy these testnet

I still cannot add a comment to ask you to elaborate on your question, so I hope I understood you correctly. You want Graph-Token on testnet to test The Graph features etc'. I checked and they have in ...
Alon Ben Yaakov's user avatar
1 vote

How to activate a validator in a local testnet?

nvm, patience is essential it activated after some time!
Muhammad Yasir's user avatar
1 vote

HOW TO SET UP TRUFFLE CONFIGURATIONS FOR SEPOLIA ETH

Note that Truffle is deprecated. If you still want to use it though, here's what truffle-config.js may look like interact with Sepolia: const HDWalletProvider = require('@truffle/hdwallet-provider'); ...
Ake's user avatar
  • 1,149
1 vote
Accepted

USDT on Sepolia

Here are the two USDT token contracts I found on the sepolia testnet, USDT1 USDT2. You can check either of these. On the other hand, you can also deploy by your side for testing. To get the tokens, ...
Zartaj Afser's user avatar
  • 4,434
1 vote

jsonrpc":"2.0","error":"[ethjs-query] while formatting outputs from RPC '"transaction underpriced\"

Case 1- I assume you are sending 100 gwei thinking it is a gas price, but it's not. You don't need to mention the gas price, it will be deducted by default. If this is the case, then just don't give ...
Zartaj Afser's user avatar
  • 4,434
1 vote

how can i deploy my Dapp?

No, truffle or ganache are local environments, the same as you can think of localhost. To make your dapp usable by other people you should deploy the contracts on any public testnet like Goerli,...
Zartaj Afser's user avatar
  • 4,434
1 vote

Sushiswap Router Contract Address on Sepolia Public Testnet?

As per the Sushiswap documentation suggests, https://docs.sushi.com/docs/Products/Classic%20AMM/Deployment%20Addresses Here's the V2Router02 contract address, ...
Kannan Palani's user avatar
1 vote

Subgraph indexed network is missing from manifest

This means that this network is not supported on hosted-service. Check this page for the lis of supported networks: https://thegraph.com/docs/en/developing/supported-networks/
AlexeyMak's user avatar
  • 111

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