/Crowdfunding_smart_contract

This is a smart contract made in solidity programming language that makes crowdfunding secure and safe by adding it on blockchain network. The manager requesting for funds will only be able to receive the amount until and unless a target amount is crossed and the contributors vote to pass the request.

Primary LanguageSolidity

Crowdfunding_smart_contract

Crowdfunding is the use of small amounts of capital from a large number of individuals to finance a new business venture. Depending on the type of crowdfunding, investors either donate money altruistically or get rewards such as equity in the company that raised the money.

Solidity is a statically typed, contract-oriented, high-level language for implementing smart contracts on the Ethereum platform.

For a good overview and starting point, please check out the official Solidity Language Portal.

Table of Contents

Background

Solidity is a statically-typed curly-braces programming language designed for developing smart contracts that run on the Ethereum Virtual Machine. Smart contracts are programs that are executed inside a peer-to-peer network where nobody has special authority over the execution, and thus they allow to implement tokens of value, ownership, voting, and other kinds of logic.

When deploying contracts, you should use the latest released version of Solidity. This is because breaking changes, as well as new features and bug fixes are introduced regularly.

Example

A "Hello World" program in Solidity is of even less use than in other languages, but still:

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0 <0.9.0;

contract HelloWorld {
    function helloWorld() external pure returns (string memory) {
        return "Hello, World!";
    }
}

To get started with Solidity, you can use Remix, which is a browser-based IDE. Here are some example contracts:

  1. Voting
  2. Blind Auction
  3. Safe remote purchase
  4. Micropayment Channel

Documentation

The Solidity documentation is hosted at Read the docs.