Questions tagged [solidity]

Solidity is a specialized programming language tailored for smart contracts utilized in blockchain platforms such as Ethereum. Its primary purpose is to translate code into executable instructions for the Ethereum Virtual Machine (EVM). Feel free to leverage this tag when seeking guidance on coding smart contracts with Solidity.

React does not accept objects as valid children. If you want to render a group of children, make sure to use an array instead

I am in the process of developing a system for document verification using ReactJS and solidity smart contract. My goal is to showcase the outcome of the get().call() method from my smart contract on the frontend, either through a popup or simply as text d ...

javascriptreactjsuser-interfacesolidityweb3js

The function call .methods.request().send() from the Smart Contract is failing to show any output

I am facing a particular issue: I have developed a smart contract on Remix : pragma solidity ^0.5.1; contract anotherTry { function Hello() external pure returns (string memory) { return "Hello World !!!"; } } After compiling it, I extracted it ...

node.jsblockchainethereumsoliditysmartcontracts

It appears we are having trouble accessing the metadata stored within the smart contract

I developed a crowdfunding platform using React and integrated thirdweb to create my smart contract. However, upon running the application I encountered an error in the console indicating that it was unable to retrieve metadata from {address}. ERROR: - E ...

reactjsblockchainsolidityvitethirdweb

Oops! An issue occurred at ./node_modules/web3-eth-contract/node_modules/web3-providers-http/lib/index.js:26:0 where a module cannot be located. The module in question is 'http'

I have been troubleshooting an issue with Next.js The error I am encountering => error - ./node_modules/web3-eth-contract/node_modules/web3-providers-http/lib/index.js:26:0 Module not found: Can't resolve 'http' Import trace for requested module: ...

javascriptnext.jssoliditypolygonmoralis

Python Web3 Ganache - Error traceback encountered when attempting to build a transaction

Currently enrolled in the freeCodeCamp course via YouTube and encountered an issue while running the program. I am attempting to incorporate a transaction into Ganache and noticed activity in the Ganache logs as well. This is my first time posting, so feel ...

pythonblockchainsolidityweb3pyganache

Receiving a null array from the web3.eth.getAccounts() function

While working with next.js, I encountered an issue where web3.eth.getAccounts() was returning an empty array on the server side. Here are two of my files - index.js and web3.js. index.js: import React, { Component } from "react"; import web3 from "../eth ...

reactjsethereumnext.jssolidity

Tips for rectifying the issue encountered during the deployment of a smart contract in Ethereum

While attempting to compile the smart contract using solc-js, I encountered the following error message: Krishna:Voting krishnakankipati$ node deploy.js Compiling the contract assert.js:350 throw err; ^ AssertionError [ERR_ASSERTION]: Invalid c ...

node.jsnpmnode-modulesethereumsolidity

Instructions on generating a fresh Ethereum or Solidity contract for every test using JavaScript and Truffle

overview After developing an Ethereum smart contract using the Solidity language, I utilized Ganache to deploy my contract for testing purposes. However, in order to conduct tests effectively, I need to create a new instance of my contract using JavaScrip ...

javascripttestingsoliditysmartcontractstruffle

Windows is experiencing difficulty installing the package "truffle" through NPM

Recently, I attempted to set up "truffle" using npm, but my lack of familiarity with NodeJS has left me puzzled as to why npm refuses to install it. Upon running npm install -g truffle in Powershell with Admin privileges, a series of error messages appeare ...

node.jsnpmethereumsoliditytruffle

Solidity smart contract failing to provide accurate output

Within my ERC20 solidity smart contract, I've implemented the following function: function getSummary() public view returns (string, string, address, uint, uint){ return( symbol, name, creator, balances[msg.sender], _tot ...

reactjsethereumsolidityweb3jsmetamask

What method can I use to create the v, r, and s values using Python based on the data stored in the

Currently, I am attempting to initiate a transaction via Python that involves utilizing the collectFromTiles function within this specific smart contract: Displayed below is the code snippet for the aforementioned function on polygonscan: function collect ...

pythonsolidityecdsakeccak

What are some top tips for setting up a solidity contract with react?

For the past 3 months, I have been delving into solidity and exploring its intricacies. However, I now find myself facing a dilemma on how to effectively link my contract with frontend technologies such as React or Next. Each developer has their unique a ...

reactjsnext.jssoliditytrufflehardhat

Encountering an incorrect number of parameters for "undefined" during the deployment of a smart contract

I am facing an issue while attempting to deploy my first Voting contract on the testRPC. The error seems to arise from the arguments parameter in the code snippet below. When I tried passing an empty array, it gave an error stating "Got 0 expected 1!". Si ...

javascriptnode.jsethereumsolidityweb3js

Retrieve information from an array within a blockchain smart contract

My smart contract factory has the ability to deploy another smart contract. Within the factory contract, there is a specific function: address[] public migrations; ... function getMigrations() public view returns (address[] memory) { return migr ...

node.jsreactjsnext.jssolidity

When attempting to run my initial truffle file, encountering an error stating "Module 'babel-register' not

Currently, I am in the process of constructing the marketplace decentralized application (dapp) tutorial created by Dapp University on YouTube. However, when I run truffle compile, an error is thrown with the message: Error: Cannot find module 'babel ...

npmblockchainsoliditytruffle

What is the best way to fetch the title property from my Campaign Contract for displaying it in the render method?

I'm currently working on a unique crowdfunding DApp that requires constant access to contract variables through function calls for retrieval purposes. The getDeployedCampaigns function is responsible for returning an array of deployed campaign addres ...

javascriptreactjsnext.jssolidityweb3-react

The npm solc module encountered an assertion error stating "Invalid callback" during execution

AssertionError [ERR_ASSERTION]: An error occurred due to an invalid callback being specified. Please check the specified callback and try again. ...

node.jsnpmblockchainethereumsolidity

External dependencies for hardhat (Solidity files)

I am working with a smart contract that includes the following import statements: import "@prb/contracts/PRBMathSD59x18.sol"; import "@openzeppelin/contracts/utils/Counters.sol"; import "@openzeppelin/contracts/access/Ownable.sol&q ...

npmsoliditysmartcontractshardhat