sl.brentley 10 months ago

Blockchain Hackathon's?

Where are the Blockchain Code-a-thon/Hackathon's?, where to learn and launch?

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hardikmansaraa 10 months ago

ERC-20 Token transaction fail status

I am using web3 for ethereum blockchain. When i transfer token, "TxReceipt Status":Fail. My Code is: ``` var _contractInstance = new web3.eth.Cont... more

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robertoschler 10 months ago

Web3.js function(s) to help determine the block numbers inside a date range?

I'm working through Lesson 6, Chapter 9. In that lesson it talks about subscribing to events and also querying for events within a certain block r... more

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cryptogrow36 9 months ago

how to call transfer function of token contract using web3 & metamask

Hello all! im looking for help with a problem ive been trying to solve for over a week! I have successfully launched my token contract, IdeaCoin to... more

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mclovin 11 months ago

How to track contract events in frontend?

I am trying to call a contract’s function by its instance in web3.js^1.0.0 using asynchronous function but I am getting an “undefined” rather than ... more

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kenseikyoka 10 months ago

Will Tomorrow be the greatest day ever?

**++Who is excited for tomorrow?++**

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robertoschler 10 months ago

Cannot find “web-requestManager” exception when requiring Web3.js module from Javascript?

I have a *Node.js v8.11.1* app running on a *Ubuntu 14.04* LTS box that uses the Web3.js module. When I upgraded to the latest beta version, the v... more

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chrouzz 10 months ago

How to learn to use web3.js

How to learn to use web3.js

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benjamin.shafii 10 months ago

What is the proper way to request a list of structs?

```solidity pragma solidity ^0.4.17; contract AssetFactory { event NewAsset(uint id, string name); struct Asset { string name; ... more

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brutka.m 10 months ago

Learning web3.js - recommend good source or course

Topics needed: - Ulcomparisson of server side technologies (python vs node.js) - Ulbrowser side frameworks - which is more suitable for web3.js more

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