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  • Jun 05 2016 10:31
    @alexvandesande banned @adamskee
  • Mar 16 2016 01:12
    @alexvandesande banned @scbosse
i am real not well \
In solidity, A 'pure' function can neither modify the contract's data nor read it. Can you give example of a function that might need to be 'pure' ?
A function which adds two numbers would be an example @KshitijV97
Hi, fighting partners, I already have a token created now what steps should I follow ..... write to me in private please.
Muhammad Taimoor
I have a custom smart contract on Ropsten testnet. I want to execute a function in that smart contract with uPort wrapped with Web3 but i am unable to do the configuration. I have followed the tutorial and documentation of uPort transaction signing with Web3 but still i am unable to do it. does anyone has an example or tutorial for this? any help would be great.
Rohith Srivathsav

Hey guys. I recently wrote an article which explains you step by step how you can build a full stack vending machine ethereum dapp with solidity and javascript. Maybe someone in this group might be interested!

Here is the tutorial: https://www.roheat.com/code-a-full-stack-vending-machine-ethereum-dapp-with-solidity-and-javascript/

Please feel free to check it out and leave some feedback. Thanks!

Julien Klepatch
Just released the largest Ethereum Dapp tutorial ever, 5h total.
We build 5 Dapps together, and it covers smart contract, tests, and frontend
Justin Hunter

Hey y'all! We're building tools to make Ethereum development easy and Ethereum use easy, but we want to make sure we're building the right thing. If you have 2 min, can you fill out this survey? We have tons of tutorials planned with our new tools once we've validated our direction!


Ake Gaviar
if you need free shared Ethereum nodes, you can get those with Chainstack
Muhammad Taimoor
can anyone provide an example of calling a custom smart contract function using uPort credentials?. smart contract is deployed on Ropsten testnet and i am trying to execute a function inside it using uport Credentials.
Ake Gaviar
check out these tutorials https://docs.chainstack.com/tutorials/
Shubham Pathak
Hey, can anyone guide me on how to create a Dapp with Android?
Alexander Lee

hey ya’ll. I’ve started a tutorial series on solidity via youtube. Dedicated to updating weekly. Please check it out and give some support!


Hey everyone, we're doing a workshop on Testing Smart Contracts with Veronica Zheng, an Engineer at Coinbase, on 25th November, 10 AM PST. This will be a live and interactive workshop where you can ask questions. More information & sign up link here: https://twitter.com/CoinList/status/1197238977666994178
Aniket Tikone
how can i fetch all the tokens from ethereum network to my wallet ?using web3js(nodejs) or web3j(java)?
Burak Benligiray
Hey everyone, quickly plugging in our hackathon on developing a real-world connected dApp here:
Has good cash prizes with plenty of time left to join in

Didn't find a lot of resources on how to deploy a gas free Parity PoA chain into a Kubernetes environment. I tried to keep this sample project as basic and simple as I can. Hoping it can help other people that want to play around with a gas free chain in a kubernetes environment!


Aniket Tikone
Aniket Tikone
I would like to crawl an Ethereum network completely,is there any way?
Farid Rafati
Hello Every Body
Do you have any beginning tutorials about ethereum
Edson Ayllon
Hey, I made a tutorial for communicating to Ethereum smart contracts with a React application. Let me know if there are any errors so I can push corrections. https://medium.com/fullstacked/connect-react-to-ethereum-b117986d56c1?source=friends_link&sk=a79689e52fad9fad02d7385c5b936a6e
Philip Rego
@balajipachai "gas is the metric using which transactions on the ethereum blockchain are executed." whats the point of gas why isnt the fee just in ether. 1 transactoin = 0.0003 ether or whatever. whats the whole point of having gas and gas limit seems complicated for no reason
Shebin John


I am getting an error response from Metamask (which is intended), while I try a particular transaction. Currently, I am getting all the error info, which I don't want the user to see. Is there a way I could parse the info from the error below. I am using a try-catch mechanism to catch the Error. And the below response is stored in the err variable.

[object Object]
  "message": "VM Exception while processing transaction: revert Contract is Paused at the moment",
  "code": -32000,
  "data": {
    "0xe45338d91c0015eed4257858ad69b06b995f9b56ffced9a0f2015a369d59418c": {
      "error": "revert",
      "program_counter": 9721,
      "return": "0x08c379a000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000020436f6e74726163742069732050617573656420617420746865206d6f6d656e74",
      "reason": "Contract is Paused at the moment"

The catch block:

} catch (err) {

I want to either get the message part or reason part.

I already tried multiple ways using JSON.parse(), JSON.stringify() and toString().

Any help is appreciated. Thank You in advance.

Philip Rego
Screenshot from 2020-01-29 21-54-12.png
@edsonayllon going through your tutorial. why am i getting this error here
Philip Rego
@edsonayllon i see the error. the tutorial is missing a )
it has the right code in github
Edson Ayllon
Oh, thanks for catching that! @7--
Philip Rego
Does anyone know of a good tutorial or overview of the EVM which would be helpful for someone writing a language which targets the EVM?

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Hello, guys.

The BLUE Protocol team has decided to open source the source code to their security SDK.

The BLUE SDK features a set of security tools which make Ethereum-based products more secure than ever before.

Let's contribute making the Ethereum network more secure! Find all details on the post below.


Receive free 100 TWT Worth ~$25 + 100 TWT / Ref (airdrop)

if you already install.Please update your wallet (Go to Playstore) and click this link: https://share.trustwallet.com/M14EHc

About TrusWallet

Trust Wallet is the ethereum wallet and cryptocurrency wallet to store your favourite BEP2, ERC20 and ERC721, tokens

Hello, Im having trouble connecting Ganache to my actual project on visual studio. I haven't been able to do any transaction. can someone help me ?
Keval S Thanki
Is there any Tutorial on how to make a decentralized e-commerce using solidity and ethereum?
Flint Zheng
Gabriel Rocheleau
Hi people! Not sure if this is the right place to post, but I've written a tutorial on Merkle Patricia Trees as used in Ethereum, with follow-along examples in JavaScript. It's live on GitHub here: https://github.com/gabrocheleau/merkle-patricia-trees-examples
Sreesankar G Warrier
Hi, Currently am learning about ERC20 Token and am planning to develop my own token using truffle-hdwallet-provider and Openzappelin-solidity. But am stuck how to get started. If anyone gives me a path that will be useful to me.
Nick Mudge
I just published a new article that covers the basics of how Ethereum diamonds work, how to get started making one, and how to use one: https://dev.to/mudgen/understanding-diamonds-on-ethereum-1fb
Any guides on flushing a stuck transaction? I need some help to get my wallet back in working order and this 25 day old tx is still "pending" for some reason.
ho to login with metamask to etherdelta?