Questions tagged [infura]
INFURA is a scalable, standards-based cluster and API endpoint for Ethereum & IPFS.
456
questions
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Infura web3 provider for Events (.get & .watch)
I am using infura for connecting to testnet/mainnet as my server side web3 provider.
This works for most requests and operations, but it does not seem to work for Events.
const allEvents = (event, ...
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votes
2
answers
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To which remote ethereum nodes does Metamask plugin send signed transactions? and are they exposed to denial of service attacks?
So Metamask allows in it UI to connect to different ethereum nw (public/ testnet) right.
Do who is maintaining these peers?
Can I trust these peers?.
If so, can I setup similar service on my machine ...
16
votes
2
answers
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Connecting to hosted web3 provider from NodeJS backend
I'm using these instructions from etherchain. Here's a similar question(seems like duplicate, but it's not). The solution provided there doesn't work for me, because I don't have a local ethereum ...
- 4,138
16
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6
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Elegant way to detect current provider int web3.js
I want to know what provider the user is using (Metamaks, Mist...)so I can give better user experience. E.g. Give tips on how to unlock an account
I'm currently doing this, but is far from elegant. ...
- 161
13
votes
4
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How to connect to the Ropsten test-net using web3.js
I want to connect to the Ropsten test-net:
// Is there is an injected web3 instance?
if (typeof web3 !== 'undefined') {
App.web3Provider = web3.currentProvider;
web3 = new Web3(...
11
votes
3
answers
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How to connect to infura and deploy contract use web3.py？
the orgin question is below:
How to connect to Ropston and deploy contract use web3.py？
I have deploy a contract to Ropston use remix and MetaMask.
I want know how to deploy a contract to Ropston via ...
- 113
10
votes
4
answers
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The best Web3 providers online
Does anyone know what are the most popular web3 providers online? (Or is Infura the only one?)
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10
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2
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How do I connect the geth console to an INFURA endpoint?
Rather than have a local node on my PC, I'd like to be able to attach the geth cli console to INFURA and then issue requests within geth's java console, e.g. web3.eth.getBalance(<address>)
I ...
- 153
9
votes
2
answers
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Truffle + Infura on Mainnet: Nonce too low error
I have the following code:
const Contract = artifacts.require('./Market.sol');
module.exports = async function(callback) {
let instance = await Contract.deployed();
for(var i = 0; i <=200; i+...
- 851
9
votes
3
answers
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Can not send eth on Ropsten using Infura node
I am trying to send some test ether on Ropsten network using Infura but I can not make a transaction. Code works locally with testrpc but not with Infura
var Web3 = require('web3');
var util = ...
- 315
9
votes
2
answers
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Running Mist with INFURA
Is it possible to run the Mist browser with an external ETH client like INFURA?
Yes, I understand this may not be the decentralized paradise we want to get to, but I'd just be happy to run a browser ...
- 1,015
9
votes
3
answers
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Is there an Infura equivalent for BSC?
I am new to infura and was wondering how people interact with other smart chains.
Is there an equivalent service like infura for the Binance Smart Chain? Or can you still use infura for BSC?
- 1,243
9
votes
4
answers
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Adding Wallet using web3.eth.accounts.wallet.add
On web3 0.20.1, I am using Infura to deploy a contract to Rinkeby. This probably requires me to add a wallet to web3.accounts to provide the gas needed.
When I ran the following nodejs code,
Web3 = ...
- 1,067
8
votes
4
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How long does Infura store a file on IPFS?
You can send files to Infura's IPFS servers but I don't know about the limits.
How long is it stored for?
What's the size limit?
- 2,580
8
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3
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How to send a lot of transactions to ethereum, using js
I'm trying to send a lot of transactions to Ethereum with one program written in js. I use node js, web3 and infura ropsten. The problem is: if i send transactions at once, most of them just disappear....
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votes
2
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Why does sendSignedTransaction return a tx hash BUT does not post to the Rinkeby network (React, Metamask, web3, infura)
I'm developing a very simple React application wherein a user clicks a button and some ether gets sent from one account to another. Currently, the onClick sendEther function crafts a proper signed ...
- 71
7
votes
3
answers
11k
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Invalid JSON RPC response error for sendTransaction on Infura + Ropsten node + Truffle console
Calls work but transactions throw the error -
Error: Invalid JSON RPC response: ""
I am using web3 v0.19.0 & Truffle v3.4.9. Deploying contract using truffle,
truffle migrate --network ...
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6
votes
2
answers
4k
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Best possible way to launch the ethereum mainnet node on AWS
I have multiple applications running on my local system. I want to make them live, I need ethereum main net node of my own. I launch the ethereum node on AWS server using supervisory mode but it doesn'...
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votes
2
answers
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Simplest way to integrate Infura with a Web3/Truffle app?
I have a Truffle/Web3 app which has this code in app.js (by default) which runs when the page is loaded:
$(document).ready(function () {
if (typeof web3 !== 'undefined') {
console.warn('Using ...
- 1,288
6
votes
3
answers
3k
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Truffle + INFURA for deployment
I've recently started to use Truffle to automate/speed up my development.
As I'm still getting the grasp of it I've come up with a barrier when trying to use INFURA for migrations.
INFURA nodes don'...
- 113
6
votes
1
answer
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views
Problem with start() in web3-provider-engine
While trying to connect to a provider(infura) I get the above error below is the full stack trace:
bundle.js:54318 Uncaught TypeError: this.provider.sendAsync is not a function
at Web3Subprovider....
5
votes
1
answer
541
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Advantages of Infura over Ganache?
I'm just starting to use Ganache for building my smart contracts but have seen some youtubers using Infura.
After going through the Infura website, to my newbie eyes it seems to be exactly the same ...
- 159
5
votes
1
answer
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Cannot create filter on Infura via web3.py
I have an Infura account and I have the following code:
...
web3 = Web3(HTTPProvider("https://ropsten.infura.io/mytoken") )
web3_pending_filter = web3.eth.filter('pending')
...
when line ...
- 169
5
votes
1
answer
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Web3py. Error getting events using Infura: "The method eth_newFilter does not exist/is not available"
I'm trying to get all events from contract, but get error:
"ValueError: {'code': -32601, 'message': 'The method eth_newFilter does not exist/is not available'}"
I'm using Web3py and Infura. My code:
...
- 85
5
votes
2
answers
500
views
How should I store mainnet truffle artifacts?
Obviously, I shouldn't upload my private key or personal infura credentials to my repo, but I was wondering what was the best way to track main net truffle artifacts.
Generally speaking, for test ...
- 923
4
votes
1
answer
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Error: "The contract code couldn't be stored, please check your gas limit" [duplicate]
It's seem that is a very common topic but I couldn't find the solution in other questions, sorry for asking it again. I'm following a beginner example, trying to deploy a contract in Rinkeby Network ...
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4
votes
3
answers
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Issue in websocket connection with infura using web3
I use websocket (ws) connection to Infura node
web3 = new Web3(new Web3.providers.WebsocketProvider ("wss://ropsten.infura.io/ws"));
Sometimes it's works fine or sometimes it give error on console: ...
- 333
4
votes
1
answer
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How to properly set nonce in a web3 contract invocation?
I have this code, which works:
MyToken.airdrop(wallets,amounts,{
gas: 1267051,
gasPrice: 2000000000,
},function(err,tx){
console.log('err is %s',err)
console.log('tx is %s',tx)
callback(err,...
- 509
4
votes
3
answers
2k
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Deploying from Truffle to Infura.io
I'm trying to use the Infura or any other public provider to compile and migrate a simple test contract.
I don't get any errors when I run
truffle compile --network test
but it seems to hang and ...
- 339
4
votes
1
answer
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Error processing transaction request: already known
I'm developing an application with which you can make ERC20 token transfers. When you make transfers from one account to another with a reasonable time between transfers it works correctly.
But when ...
4
votes
1
answer
4k
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Deploy smart contract to mainnet with Infura and MetaMask
I am trying to deploy my smart contract to the main net using the following code:
truffle.js:
module.exports = {
networks: {
live: {
provider: new HDWalletProvider("mnemonic from ...
- 43
4
votes
2
answers
7k
views
Truffle Migrate Rinkeby - Error: PollingBlockTracker - encountered an error while attempting to update latest block: Error: ETIMEDOUT
I am facing this error when on running truffle migrate on Rinkeby network with my infura
- 71
4
votes
2
answers
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Problems calling Smart Contract function in Java using Web3j
I am rather new to writing/using smart contracts in Java and I am currently trying to use my smart contract. I already wrote and tested it, compiled it, deployed it to Ropsten, and built my Java class ...
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votes
1
answer
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ethers.js Why aren't logs filtering? (query returned more than 10000 results)
I'm building an API to scrape events from a contract suite deployed to Rinkeby. Here's an example function with some context:
const network = getNetwork(parseInt(`${process.env.CHAIN_ID}`));
const ...
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1
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How to make smart contract call using INFURA and NodeJS web3js
I can not understand how I can prepare the transaction to be signed. Because INFURA does not support eth_sendTransaction but only eth_sendRawTransaction (INFURA API which then requires you to prepare ...
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4
votes
1
answer
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How to store encrypted mnemonic for Truffle + Infura mainnet deploy
I'm about to deploy a small Dapp to Mainnet using infura. Built using express + truffle.
I'm curious to hear how people are storing their mnemonic value when deploying to mainnet using truffle + ...
- 311
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votes
2
answers
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Testing in ropsten network with truffle.js gives me this error
root@ubuntu-4gb-nyc3-01:~# truffle migrate --network ropsten
(node:14686) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 2): TypeError: this.provider.sendAsync is not a ...
4
votes
2
answers
308
views
How do I make Populus talk to a node on Infura?
I signed up for Infura and they gave me a URL for a node to talk to, like https://ropsten.infura.io/mytokenjsifejsij39kdjkjfdk. (The part beginning mytoken isn't my real token.)
I'd like to deploy ...
- 16.3k
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How does getDefaultProvider work in ethers.js?
From the docs:
This creates a FallbackProvider backed by multiple backends (INFURA and Etherscan).
This is the recommended method of connecting to the Ethereum network
if you are not running ...
- 12k
4
votes
2
answers
59
views
Strange blocks behaviour, transactions are dropped from a validated block
I have faced a very strange issue on Goerli Testnet using infura. The number of transactions in a blocks dropped from 168 transactions to 164.
I'm working on a blocks tracker, after receiving the ...
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votes
0
answers
33
views
Difference between Ethereum Web APIs and Ethereum API as a service
I am approaching ethereum for the first time and I am reading the documentation. Can anyone explain the difference between Ethereum Web APIs (BlockCypher) and The Ethereum API as a service (infura)? ...
- 61
3
votes
2
answers
10k
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How to login with web3 without MetaMask?
Is it possible to sign a user in web3 without MetaMask? I am trying to execute a smart contract I created and I'm using Infura to connect to the Kovan test network, but web3.eth.accounts[0] is ...
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votes
2
answers
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Getting "replacement transaction underpriced" though not trying to replace a transaction
I'm running an airdrop script which essentially loops a database of recipients and invokes a batchTransfer function each time with 80 different recipients and amounts.
After about 10 successful ...
- 509
3
votes
2
answers
1k
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Retrieving logs using filter is not working?
web3 has been connected to Infura node, can send signed transactions but web3.eth.filter is not working(405 error)?
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votes
3
answers
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Single Call vs MultiCall
What exactly is multicall and the benefits of it, compared to Single call? What is multicall contract and the purpose of it, I can't find any proper definition of it.
Some source said that multicall ...
- 43
3
votes
3
answers
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How do I send a transaction using web3.py and Infura?
I am using Infura to interact with the Ropsten testnet. I would like to send a transaction from one account to another, but the following code does not work:
w3 = Web3(Web3.HTTPProvider('InfuraUrl'))
...
3
votes
3
answers
7k
views
How to use a metamask Wallet from web3,py?
I deployed contracts to Ropsten test net using truffle and a metamask wallet to pay for the transactions and Infura as a Hosted ethereum node.
To do that in Truffle, I have to use the truffle-...
- 185
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votes
1
answer
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How to Perform Transact() On Contract Functions on Remote Node
I would like to call a smart contract functions using Web3 Python using the Infura mainnet node instead of a local node. I understand that I need to import the private key and use it to sign the ...
- 71
3
votes
2
answers
241
views
Why does confirm that there is always 1 block apart on the mainnet when initiate multi-transactions simultaneously- by web3.py and Infura.io
1.I have a need to initiate multiple transactions to the same contract address in the fastest time and get confirmation from the network. Means that multiple transactions are recorded in the same ...
- 31
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votes
3
answers
2k
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Is there any way to see the txpool with infura and web3?
I'd like to get pending transactions information without running my own node. Is there any way to do that?
Something like this would work too, but they only seem to provide a fraction of the pending ...
- 63