Questions tagged [infura]

INFURA is a scalable, standards-based cluster and API endpoint for Ethereum & IPFS.

131 questions with no upvoted or accepted answers
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votes
1answer
1k views

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 = ...
6
votes
1answer
740 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....
3
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0answers
17 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)? ...
3
votes
1answer
193 views

Metamas - Infura problem. Cannot read property 'currentProvider' of undefined

I got a problem. I am using code below to connect to the eth from node.js app. Everything works perfect as long as I have installed MetaMask in my browser. I can be logged in, logged out, all good ...
3
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0answers
259 views

The sendSignedTransaction function does not activate the on('receipt') event at an appropriate time

console.log(transacting...); web3.eth.sendSignedTransaction('0x' + serializedTx.toString('hex')).on('receipt', receipt => { log(receipt); log(`https://ropsten.etherscan.io/tx/${receipt....
3
votes
2answers
66 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 ...
3
votes
2answers
801 views

Ropsten infura test network + web3 js event listener

I have deployed contracts on ropsten test network. truffle.js ropsten: { provider: function() { return new HDWalletProvider(mnemonic, "https://ropsten.infura.io/<api-token>") }, ...
3
votes
2answers
1k views

Invalid address error

I keep getting Error: Invalid address when trying to run the application. My current setup of web3 using infura node is if (typeof web3 !== 'undefined') { web3 = new Web3(web3.currentProvider); } ...
3
votes
2answers
1k views

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 ...
2
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0answers
53 views

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 ...
2
votes
0answers
273 views

Error when I try to deploy with infura

Running migration: 1_initial_migration.js Deploying Migrations... ... 0x0ed88dd40f380a805ed0ba1b5b0a9d8178321ab6da9e5c0cb247f5700337b173 Migrations: 0xcfc4ba0488f20c7a2bb24e735f43e240bf249bc8 Saving ...
2
votes
1answer
137 views

contract does not gets deploy to rinkeby via Infura

I am trying to deploy my contract to Rinkeby network via Infura. But it actually does not get deploy to network when i run node deploy.js terminal does not spit out the address at which it is deployed....
2
votes
1answer
265 views

Issues sending Ether with web3j

Hello guys I have search around but no reasonable explanation as to why i would get these exceptions, I have already requested and have 3 ethers with associated with my address. Here is my code for ...
2
votes
0answers
107 views

Unable to call setter function in solidity using Infura

Solidity code contract Greeter { string public greeting; function Greeter() public { greeting = 'Hello'; } function setGreeting(string _greeting) public { greeting = _greeting; } function ...
2
votes
1answer
249 views

Reliable way of listening to events on frontend

I make a web application, that needs the events from my contract to initialize it's state. I was using infura websocket provider, but it seems to lag a lot and close the connections unexpectedly ...
2
votes
3answers
835 views

Deploying smart contract with truffle and infura giving me error

I am having trouble deploying my smart contract to the ropsten network using infura and truffle am getting error that says "var sig = secp256k1.sign(msgHash, privateKey); ^ ...
2
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0answers
397 views

Noob having trouble connecting to the Infura Mainnet

I've been attempting to run a script from my terminal, and have been getting this error: Error: CONNECTION ERROR: Couldn't connect to node https://mainnet.infura.io. I've installed Web3j on my ...
2
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0answers
646 views

web3 1.0.0-beta example for etherscan websocket?

Does anyone have a working JS example for wss://socket.etherscan.io/wshandler? Or any alternative websocket providers, besides Infura? The reason I'm looking for Infura alternatives is it fails for ...
2
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0answers
282 views

Provider not set or invalid when using Web3 1.0

I'm trying to use Web3 1.0 to call the balanceOf function on my contract. The error I get during runtime is as follows: Error: Provider not set or invalid. The code causing the problem is as follows:...
2
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0answers
1k views

eth_call using INFURA

I've developed a very simple smart contract and I'm trying to invoke a function using eth_call. The contract is deployed on the revived Ropsten testnet. If I invoke the function getSTR() sending the ...
2
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0answers
353 views

Different uPort provider

I'm trying to integrate uPort in one of my project and, the first thing that I noticed are the different ways to give a provider: from the official repository uPort-lib let web3 = uport.getWeb3() ...
1
vote
1answer
45 views

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 ...
1
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0answers
46 views

Can not run more than 1 event in Infura

I am trying to listening to many events from infura but it is not working. Only one filter work, when I add the second filter, this message appear: RuntimeError: cannot call recv while another ...
1
vote
1answer
57 views

Infura and Remix Smart Contract

I have a smart contract in Remix and would like to be able to filter events using Infura. I know nothing on how to get started. I went to infura and created a project which has a project ID. What ...
1
vote
1answer
203 views

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 ...
1
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0answers
382 views

Query returned more than 10000 results with getPastEvents

I am writing a function to sync all transactions on a particular contract from a particular account in my local database to build a dashboard for account owners. I need to fetch all the past transfer ...
1
vote
1answer
110 views

The send transactions “from” field must be defined using Infura web3

when I try to send my transaction using infura I get this error "The send transactions "from" field must be defined" My problem is my web3 object. When I used Metamask and ...
1
vote
1answer
43 views

Automate faucet Ether request to access Ethereum Testnet from a mobile DApp

I want to develop a mobile DApp to interact with a smart contract deployed in a testnet (free of charges). The mobile DApp is designated for public users. The DApp needs first to setup a local wallet ...
1
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0answers
66 views

Drizzle problem: how to connect to infura direct when user has Metamask, but isn't connected?

I understand how to connect direct to infura if the user has no wallet at all (for displaying blockchain data when users don't have a wallet) the problem is that I don’t know how to connect to infura ...
1
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0answers
23 views

Not able to fetch custom token after mint from Infura

I am using web3j library with an Infura Websocket connection. I set up a subscribe method where I listen to transfer events of my custom ERC20 Token. When a transfer event occurs on the blockchain I ...
1
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0answers
37 views

How to interact with Remix contract through web3py

I have an assignment for which I must write a client that can interact with a deployed contract by transacting and filtering event logs, but I cannot figure out how to successfully get either to work ...
1
vote
1answer
38 views

How long does it take it typically take for call value of changed variable to update?

I'm trying to mine a proof of work contract. Each time a solution is found, the return value for units.functions.getChallengeNumber().call() should change. I ran two instances of this script (with ...
1
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0answers
343 views

How to sign transactions using Metamask and send the signed transaction to NodeJS so that it can be added on Ropsten Infura?

I have developed a secure file sharing application in NodeJS(v10.16.1) + Express(v4.17.1) + Truffle(v5.1.15) + Metamask(v7.7.8) which works perfectly on localhost. I am using @truffle/contract(v4.1.11)...
1
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0answers
33 views

Metamask+Remix gives different gas than Web3.js+Infura

I have one transaction, that can be executed with 2 different ways: - Remix with Metamask wallet - Web3.js with Infura network In both ways, I am connected to Rinkeby network. The Gas is ...
1
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0answers
24 views

Call contract method via raw transaction in python

From what I've read online I can't call the method I want to in python using contract.functions.myfunc(param1,param2 becaues infura doens't support these types of transactions. So instead I want to ...
1
vote
1answer
138 views

“Nonce too low” using contract.methods.myFunction().send()

Using web3 to build a contract from the ABI: contract = new web3.eth.Contract(JSON.parse(abi), '0x17c91A5a6f5e3E4BEaFC478D18C4A44D88833277', { from: '0x0Ad2b5CCe78D677fD000698a7E4Cde866DE189C6', gas: ...
1
vote
0answers
43 views

Why can I only deploy approx. 3 smart contracts per minute with infura using Ropsten and Rinkeby

I have created a Dapp that is written in Solidity and compiled with Truffle on both Rinkeby and Ropsten. I have also created a frontend for batch file uploads and a backend for the actual deploying ...
1
vote
1answer
688 views

getting full pending transactions from Infura

I use Infura to get all pending transactions from Ropsten: web3.eth.subscribe('pendingTransactions', async (error, txHash) => { let tx = getTransaction(txHash) ... } With this ...
1
vote
1answer
129 views

Problems subscribing to infura via websockets

So I have a dapp that includes a node server, which I have got to work successfully using ganache, using this line: web3 = new Web3(new Web3.providers.WebsocketProvider('http://127.0.0.1:8545')) I ...
1
vote
1answer
89 views

How to get events on android with infura?

I am developing an app on Android, but Web3j does not support events on infura ( Should I use Infura with Web3j for Event filter? ) . What are the options, I did not find any alternative library?
1
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0answers
374 views

Cannot read property 'type' of undefined - abi-coder

I'm creating a simple voting contract. It is deployed with truffle and infura. This is the contract code: pragma solidity >=0.4.21 <0.6.0; contract Voter { struct OptionPos { uint ...
1
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0answers
116 views

Using web3j with infura returns null

I've used web3.js to handle my contracts, and it worked very well. But web3j is pretty hard for me since the beginning. I'm using android studio, infura, web3j. Since I don't know very much about ...
1
vote
0answers
46 views

Infura websocket API timing out on connect

Has anyone ever had issues with the Infura Websocket API suddenly ceasing to respond. I have been using it to subscribe to event logs, but now the connection to the API is timing out.
1
vote
1answer
484 views

Transaction stuck in 'Pending' state when using 'sendSignedTransaction'

I am trying to execute a transaction by first signing it with my private key using ethereumjs-tx and then using sendSignedTransaction to send the transaction to the network. But somehow the ...
1
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0answers
191 views

How to use 'geth attach' with Infura?

I have a project in Infura and the project ID is 6f...3a. I'm having problem to start geth attach process with Infura. I tried all protocols (http, https, ws and wss) but all failed. Did I miss ...
1
vote
1answer
530 views

Error on WebSocket connection to Infura Ropsten (broken close frame)

I am trying to connect to Ropsten with Web3js (1.0) via Infura using their WebSocket provider but I am getting the following error: WebSocket connection to 'wss://ropsten.infura.io/ws' failed: ...
1
vote
2answers
1k views

Uploading files on IPFS Infura

I am trying to make a dapp to upload files on IPFS Infura. I am using IpfsHttpClient in web browser by including the script <script src="https://unpkg.com/ipfs-http-client/dist/index.min.js">&...
1
vote
0answers
404 views

Infura V3 spec cannot find Project Id

I used to use the old version of infura and it worked just fine. The latest version is not working as it states that it cannot find the id despite it being there. https://mainnet.infura.io/v3/...
1
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0answers
333 views

metamask and infura - Managing and signing with private keys

I am using Infura as a node for my DApp so I need to send raw transactions by signing them. These transactions can come from multiple users of an application so each user must sign and send a raw ...
1
vote
0answers
64 views

How to send transaction using web3py using infura.io

I have connected to mainnet via infura.io and have used http provider for connections now i want to generate address and send transaction And i wand to send real eth so how can i do this?I have ...