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Questions tagged [metamask]

Question about the Metamask chrome's plugin.

10
votes
2answers
2k views

Solidity Browser - Issue with every example => Error: Type “address” not supported for state variable

I am very new to blockchain and Ethereum. I want to get started with a BaaS cloud service and develop / execute some smart contracts. I successfully set up the Azure Ethereum template (https://github....
3
votes
1answer
79 views

Gnosis.js will not perform createEvent request when initialized using Metamask's web3

I'm trying to create an event on the Morden testnet via the gnosis api but gnosis.createEvent will not make the necessary request. I am able to load metamask's web3 into the config object I use to ...
4
votes
1answer
1k views

How deploy a smart contract with meteor and metamask?

I will deploy a smart contract with meteor and matamask. My code in main.js : var inactivityTime = 1000; var continuityContract = web3.eth.contract(Continuity.abi); var continuity = ...
2
votes
1answer
334 views

Compile smart contract in the console browser

I use metamask with chrome. In console browser when I run this code var source = "" + "contract test {\n" + " function multiply(uint a) returns(uint d) {\n" + " return a * 7;\n" +...
1
vote
2answers
1k views

How do I connect to Remix in Mist or MetaMask?

If I use either Mist or MetaMask, I get the error message: Unable to connect to http://localhost:8545. Invalid JSON RPC response: "" How can I connect to the Remix localhost?
5
votes
2answers
5k views

Send transaction using MetaMask injected web 3

Metamasks injected web3 gives an error when using web3.eth.sendTransaction() web3.eth.sendTransaction({from:web3.eth.accounts[0], to:'', data: // hash to interact with contraact, gas:85000}); What ...
6
votes
2answers
702 views

How a dapp can call contract functions without running a local full node?

I have developed a contract and a basic dapp. It works on my local environment with my local test node. Now I would like to understand how it can be distributed so that a user doesn't have to run a ...
4
votes
1answer
903 views

What is 'the last add pending transaction' in web3 filter?

I run this code using MetaMask to inject web3 object: var filter = web3.eth.filter('pending'); filter.watch(function (error, log) { console.log(log); }); From web3 api docs: When using the "...
3
votes
1answer
4k views

Is there a way to call a constant function asynchronously?

I'm trying to invoke a constant function test from a webpage. I've injected web3 object through MetaMask. contract A { function test(uint8 x) constant returns(uint8) { return x + 10; ...
12
votes
3answers
18k views

How can I get my accounts into metamask or vice versa?

I need my accounts in Metamask to match my local machine so I can deploy from the machine (using truffle), and test in a browser. How can I either: Upload my local geth accounts to Metamask Bring ...
8
votes
1answer
1k views

Are tools like metamask putting decentralization in danger?

Does a tool like metamask, which connects your browser to a public ethereum node to simplify running DApps, put the basic idea of decentralization and trustless blockchain verification in danger? Is ...