Questions tagged [metamask]

Question about the Metamask chrome's plugin.

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Why this error occurring when i running my dapp?

I create a dapp using Solidity,Web3Js,Javascript and Html with metamask i always getting this error when i am trying to submit my transition i am getting this error at c (inpage.js:1) at ...
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2answers
154 views

how to write backend for contract if you use infura ropsten metamask and remix

i'm using metamask with ropsten. deployed my contract on ropsten using remix. for the backend i used infura to create instance of web3. ew Web3(new Web3.providers.HttpProvider('https://ropsten.infura....
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1answer
73 views

How to view or transfer initial ethereum smart contract balance?

I created a new smart contract token with initial supply and deployed it via MetaMask. Then I added this token into MetaMask but token balance is Zero. Now, My question is when we create a new ...
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39 views

How to handle estimate gas cost error?

I am programming a button for a transaction which shall only appear if the transaction is possible. Therefore, I am using the following code contract.methods.function(parameters) .estimateGas({...},...
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394 views

Web3 Cannot read property 'apply' of undefined

I'm new to dapp and trying to follow iwaldman to build an ipfs-image-dapp. Here is the repo: https://github.com/iwaldman/ipfs-image-dapp. But running yarn start gives the error Cannot read property '...
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45 views

Looking for api call to send ERC20 token over eth-wallet

I use metamask and etherscan api to get the info when a specific ERC-20 token is sent to my wallet. I would like to use API to send a specific ERC-20 token back to a given public key over API from ...
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1answer
97 views

metamask and web3: Invalid number of arguments to Solidity function

my function has only one input string description : function createProposal(string description) { Proposal memory p; p.description = description; proposals.push(p); } and ...
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1answer
143 views

Not able to connect metamask account with remix

Error: - Cannot get account list: Error: The method personal_listAccounts does not exist/is not available. Pop containing above message appears again and again. Privacy Mode in metamask is disabled.
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46 views

MetaMask Calling Child Contract Methods?

I had created a contract(Organisation.sol) that create other contracts(Session.sol). When I call any method from(Organisation.sol) using web3js it work well. But If I ever tried to call any method ...
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33 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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1answer
334 views

How to connect with Metamask and Smart contract?

I am ready with my frontend design. I have only 3 files HTML, CSS, and JAVASCRIPT. So, I didn't create any project or DAPP to have other files. Now next step is to connect with metamask and smart ...
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2answers
48 views

connect users to the sidechain SKALE

SKALE is Ethereum Dapps to run high speed, Low cost smart contract layer. I wish to connect users to the sidechain SKALE,from their browser. automatically without the manual change as necessary for ...
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80 views

Solidity, Web3 - Invalid number of arguments to Solidity function when I have correct number

I created smart contract and I deployed it on Ropsten network using Truffle. I tested it from Remix and it works. I have there 2 view with a same name checkInputData but different number of parameters....
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2answers
294 views

No “from” address specified in neither the specified in neither the given options nor the default options

So I already went through this query, but I still couldn't get my doubt solved. Be it any Blockchain Dapp, the same error is coming for me. I used the marriage certificate and kickstart examples. Can ...
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43 views

ETH send to contract fails, probably fallback() function fails to call

I deployed the following piece of contract on testnet and everything works fine.But, when I send test ETH for the contract address, transaction fails. I tried with higher gas as well but failed as ...
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1answer
76 views

Cannot read property 'sendEth' of undefined, 'sendEth' is function in smart contract

Hi I'm trying to interact with an Ethereum smart contract but it is always showing "TypeError : Cannot read property 'sendEth' of undefined" where 'sendEth' is a function in my smart contract Here is ...
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1answer
31 views

Accounts with ether cannot execute transaction on private chain

According to Metamask my accounts have ether, one account can submit transactions and have them be executed by the network, the other two have their transactions left as Submitted transaction. Note, ...
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147 views

Metamask not connected with web3.js

if (typeof window.web3 !== 'undefined') { web3 = new Web3(web3.currentProvider); } else { // set the provider you want from Web3.providers window.web3 = new Web3(new Web3....
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1answer
97 views

how to connect my html form that is username and password to blockchin and taking the username as metamask key?

I am developing a decentralized cloud web application, when the user will login into the application he/she will generate password from blockchain, I am not getting how to connect my html form that is ...
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1answer
82 views

Wait a promise end before continue

i try to create a map with (address => bool) with web3js. I want to know if the address is a contract owner. So, i have to call "owners" function in my solidity contract. As you can see below : let ...
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1answer
136 views

Invalid JSON Response while connecting DApp, Metamask and Backend

I am getting some error(picture below) while trying to connect DApp with a backend. One day ago, everything worked fine, now I got an error: "basic auth failure". Contracts are deployed on Ropsten ...
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407 views

Getting error while buying test ether from https://faucet.metamask.io/

I just tried to buy a test ether from https://faucet.metamask.io but the faucet address which is supposed to give 1 ether doesn't have enough balance. Snapshot of the faucet address And when i ...
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105 views

Contract deployment not working anymore

So I have this following code that was working a couple of weeks ago and today I decided to run a few tests and it just doesn't do its job anymore. function approve(rid, guest_wallet, ctr_key, dti, ...
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382 views

Web3 is injecting but stilling getting an invalid provider error

I'm injecting web3 with MetaMask, and everything works, but when I make a production build, I notice that it injects web3 alright, but when I try to call a web3 function, it throws `Please provide an ...
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217 views

How to call contract method from specific address and private key without Metamask check

Good morning, I need to known how call contract method in javascript from specific address(and relative private key) without the check of Metamask. I explain better. This is an example of js code, ...
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60 views

Got Gas Estimation failed error every time, at the time of execution of MultiSig wallet contract. Specifically while executing sendMultiSig() function

function sendMultiSig( address toAddress, uint value, bytes data, uint expireTime, uint sequenceId, bytes signature ) public onlySigner { // Verify the other signer var operationHash ...
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66 views

I think Metamask gas fee showing has an error. Please have a look!

1) This is the 5 Gwei gas price, and the Metamask is showing it well. 2) This is also 5 Gwei gas price, but the Metamask is showing much expensive ETH on it. So, when the second Metamask window pops ...
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1answer
357 views

Connecting Metamask to geth

In here it's said we need to run below command line to let Metamask connect to geth: geth --rpc --rpccorsdomain="chrome-extension://nkbihfbeogaeaoehlefnkodbefgpgknn" I'm running a private ...
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270 views

Sign a transaction locally and send it

I'm using Infura as my web3 provider, and have MetaMask installed to connect to the blockchain. I'm trying to send a transaction, but have learned that Infura is read-only, and doesn't support the ...
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73 views

Why is not Metamask invoked in my user interface?

I'm running a private Ethereum blockchain on my computer. I've installed Metamask on my chrome as well. I can create an account on metamask, and then interact with my smart contract deployed on my ...
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1answer
111 views

approve() and sendFrom()

Im trying to run the code below in a smart contract to use as an escrow. calling approve first and calling send from later does nothing to get the tokens into the smart contract, what am I missing ...
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88 views

Balance from ethereum accounts on geth disappears

I have geth private network with 3 accounts A, B and C. each account has 100, 200 and 300 ether balance I connected to this network from Metamask and Transferred the balance of 50 eth from account A ...
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67 views

How to generate sign to pass to transferPreSigned(), contract is not asking for sign while transfer()

I'm creating ERC865 token so that users can send tokens without having ether. I followed 1 and 2. As per 1, sender will sign transaction object while calling transfer() but I'm unable to see any "...
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1answer
73 views

i have erorr when sendTransaction web3

file javascript //smartcontract window.onload = function() { if (typeof web3 === 'undefined') { document.getElementById('metamask').innerHTML = 'Instal metamask dulu' ...
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58 views

Why is geth account list and eth.accounts different?

I am trying to sync Metamask accounts with a private geth installation. I imported the account from MM and that shows on geth list but on eth.accounts nothing for that account. Any reason for this ...
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1answer
195 views

Changed behaviour regarding web3.eth.accounts[0] in Metamask?

Some time ago, it was possible to get the selected account using sync methods on web3 0.2. https://github.com/MetaMask/faq/blob/master/DEVELOPERS.md It always worked on our DAPP. But on Nov 8th in ...
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1answer
278 views

Unable to interact with DApp deployed on quorum

I am unable to interact with contract using Dapp deployed on Quorum blockchain (using metamask). I am following "https://truffleframework.com/tutorials/building-dapps-for-quorum-private-enterprise-...
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1answer
333 views

Importing accounts into geth from metamask

I Have entered into my geth console geth eth.accounts ["0xf844f0d7acb0d01bf66ffd81809fb96b2236abce", "0xc8d94cb87173fc94c4b165e44a5fc0b047618044", "0x6a0ef1a429c3570cb342963d309dd5aaa9e49cd4", "...
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2answers
779 views

Deploying on Rinkeby with Truffle using infura

If I want to use HDWalletProvider to deploy my contract on a specific address, what should I do? rinkeby: { provider: () => { return new HDWalletProvider("Mnemnoic", "https://ropsten.infura....
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1answer
33 views

how do I make users sign different strings with their private key separatelly

Here is the the scenario. Users come to my website and register(by using email and password). Then they login. After that, They add a new item(which has name and quantity fields). After Clicking ...
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1answer
65 views

dApps being required to explicitly ask for access to web3(when using MetaMask)

Injecting web3 into the dapp is done automatically,when using MetaMask. Web pages get access to the Blockchain when using metamask in their browser, to read addresses for tranactions, and other ...
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2answers
413 views

DApp using IPFS Ganache and MetaMask

I am following a tutorial (hosted by dappuniversity) on youtube regarding DApps using IPFS. I have done exactly everything as mentioned in the tutorial but i get this errors: GET https://ipfs.io/ipfs/...
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0answers
304 views

Transaction pending on Ropsten

I deployed a contract on JavaScript VM using remix online IDE. Here is the contract: pragma solidity ^0.4.17; contract FileDetail { struct File{ string fileName; string fileHash; } File[...
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1answer
501 views

Can't get the func in `web3.eth.getAccounts` to run

I'm trying to perform a simple balance check, but the code inside web3.eth.getAccounts doesn't run. I'm trying to get web3 from the instance injected by Metamask. myWeb3.eth.getAccounts(function(err,...
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0answers
260 views

Error transferring ERC20 tokens from a contract to an user account

I am calling a method in smart contract, which transfers tokens from sender account to holder account. the transferFrom is failing with error MetaMask - RPC Error: Error: Error: [ethjs-rpc] rpc ...
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1answer
100 views

Internal transactions on Rinkeby - Metamask, ICO through wizard.oracles.org

I have tried to play with solidity and smart contracts. I created "ICO" through wizard.oracles.org on Rinkeby network. Then I tried to send ethereum there from 2nd account, I received tokens on that ...
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1answer
238 views

value.forEach is not a function on web3 send

I try to call a smart contract method in my web page, this is my following code: this.miniVaultContract.methods.addDocument("0x00aaff","0x00aaff","0x00aaff",["0x00aaff", "0x00aaff", "0x00aaff"],[1, 2,...
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2answers
258 views

Can I deploy a smartcontract with web3 1.0, without the metamask popup?

I'm using web3 1.0 to programmatically deploy smartcontracts and make transactions, and metamask to sign those transactions, since i don't want to have hardcoded fragile things. I would like metamask ...
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1answer
214 views

What is the equivalent of solidity to perform ethereumjs-abi.soliditySHA3?

I am trying to tightly pack some typed-data (array of structs or nested JSON) and generate SHA3 hash from it. In JS, I can use ethereumjs-abi.soliditySHA3() method, ethAbi.soliditySHA3( ['...
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1answer
212 views

Calling contracts on server side with metamask

My application is in nodejs platform. I'm calling the contracts on server side by setting up provider as web3.setProvider(new web3.providers.HttpProvider("http://localhost:8545")); Is it ...

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