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Solidity Development Company

We help startups and enterprises build robust smart contracts powered dApps with the Solidity programming language to unfold innovations across new verticals of the web3 ecosystem.

Solidity Development Company

We are the expert Solidity Development Company

We develop decentralized applications and smart contracts for various use cases including DeFi, DAOs, digital identity, gaming, tokenization, NFTs, Stable coins and dApps. We have successfully deployed 80+ smart contracts and worked on 50+ blockchain platforms.

Our Solidity Development Services

Bridges and

We write, test and deploy contracts on blockchains like Ethereum, Neo, and Solana, helping clients leverage the benefits of Solidity programming language.

Digital Token Creation

We help you mint, upgrade and transfer your digital tokens powered by smart contract standards like ERC20, ERC721 and ERC1155.

Exchange Platform

We write and deploy secure, authenticated and upgradable code architected by our Solidity experts to help businesses build the exchange platform with the feature set specific to their niche.

Bridges and Swaps

Building cross-chain bridges or creating liquidity pools for running swaps on the same network, we understand the complexity and security requirement of a DeFi application.

Stablecoins Development

We help you build solidity based smart contract against crypto-volatility by launching Stablecoins. Peg cryptos to assets like fiat currency, gold or other assets to tap into defi opportunities, we understand custodian integrations, on-ramp and off-ramp architecture.

DAO Development

Starting from writing DAO smart contracts, deploying governance nodes and creating the interface, we understand how to build and launch DAOs.

Solidity Technology Tools

Solidity REPL

We write codes using Solidity REPL, a true general-purpose computing environment.

Solgraph

Using Solgraph, we generate a DOT graph that helps visualize the function control flow of smart contracts ad highlights security vulnerabilities.

Evmdis

We use Evmdis to perform static analysis on the bytecode that provides high abstraction than raw EVM operations.

Doxity

We use Doxity to generate documentation for Solidity.

Our Solidity Smart Contracts Development Process

Requirement Gathering

  • Understanding the requirements for a new and existing application
  • Identify business logic for smart contracts
  • Define off-chain & on-chain business entities
  • Product’s roadmap

Team Members

  • Solutions Specialist
  • Technical Lead
  • UX Lead
  • Business Analyst
  • Solidity Consultant

Deliverable

  • NDA
  • Use cases
  • Off-chain & on-chain data

Technical Design

  • Create data flow diagrams
  • Design technical architecture
  • Document technical GDPR compliance requirement
  • Create sprints and delivery milestones

Team Members

  • Business Analyst
  • Solution Specialist
  • Product Manager
  • Solidity Architect
  • Developers

Deliverable

  • Flow diagram
  • System blueprint
  • Block definitions
  • Epics and user stories
  • Document scalability and security requirements

Development

  • Pre-alpha
  • Alpha
  • Beta
  • Release Candidate
  • Production

Team Members

  • Developers
  • Quality Assurance
  • Team Leads
  • Scrum Master
  • Technical Architect

Deliverable

  • Source code
  • Smart Contracts
  • Builds
  • Test Blockchain Deployment

Deployment

  • Provisioning
  • Deploy on Main Chain
  • Hybrid solution
    • Cloud deployment
    • App Store deployment

Team Members

  • DevOps
  • Quality Assurance
  • Delivery Manager

Deliverable

  • Internal distribution
  • If public blockchain
  • Main Network Release
  • Rollout execution
  • If hybrid solution
  • App Store release
  • Play Store release

Upgrades

  • Requirements gathering
  • Backlog prioritization

Team Members

  • Developers
  • Quality Assurance
  • Team Leads
  • Scrum Master
  • Technical Architect

Deliverable

  • Upgrades Smart Contracts
  • Deploy new contracts
  • If hybrid, Upgrade apps and microservices

Our Solidity Smart Contract Sample Code

 

The following sample Solidity code implements delegated voting through a voting smart contract that resolves electronic voting challenges, such as, how to assign voting rights to the right person and how to prevent manipulation.

pragma solidity >=0.4.22 <0.6.0;

/// @title Voting with delegation.
contract Ballot {
// This declares a new complex type which will
// be used for variables later.
// It will represent a single voter.
struct Voter {
uint weight; // weight is accumulated by delegation
bool voted; // if true, that person already voted
address delegate; // person delegated to
uint vote; // index of the voted proposal
}
// This is a type for a single proposal.
struct Proposal {
bytes32 name; // short name (up to 32 bytes)
uint voteCount; // number of accumulated votes
}
address public chairperson;
// This declares a state variable that
// stores a `Voter` struct for each possible address.
mapping(address => Voter) public voters;

// A dynamically-sized array of `Proposal` structs.
Proposal[] public proposals;

/// Create a new ballot to choose one of `proposalNames`.
constructor(bytes32[] memory proposalNames) public {
chairperson = msg.sender;
voters[chairperson].weight = 1;

// For each of the provided proposal names,
// create a new proposal object and add it
// to the end of the array.
for (uint i = 0; i < proposalNames.length; i++) {
// `Proposal({...})` creates a temporary
// Proposal object and `proposals.push(...)`
// appends it to the end of `proposals`.
proposals.push(Proposal({
name: proposalNames[i],
voteCount: 0
}));
}
}

// Give `voter` the right to vote on this ballot.
// May only be called by `chairperson`.
function giveRightToVote(address voter) public {
// If the first argument of `require` evaluates
// to `false`, execution terminates and all
// changes to the state and to Ether balances
// are reverted.
// This used to consume all gas in old EVM versions, but
// not anymore.
// It is often a good idea to use `require` to check if
// functions are called correctly.
// As a second argument, you can also provide an
// explanation about what went wrong.
require(
msg.sender == chairperson,
"Only chairperson can give right to vote."
);
require(
!voters[voter].voted,
"The voter already voted."
);
require(voters[voter].weight == 0);
voters[voter].weight = 1;
}
/// Delegate your vote to the voter `to`.
function delegate(address to) public {
// assigns reference
Voter storage sender = voters[msg.sender];
require(!sender.voted, "You already voted.");

require(to != msg.sender, "Self-delegation is disallowed.");

// Forward the delegation as long as
// `to` also delegated.
// In general, such loops are very dangerous,
// because if they run too long, they might
// need more gas than is available in a block.
// In this case, the delegation will not be executed,
// but in other situations, such loops might
// cause a contract to get "stuck" completely.
while (voters[to].delegate != address(0)) {
to = voters[to].delegate;

// We found a loop in the delegation, not allowed.
require(to != msg.sender, "Found loop in delegation.");
}

// Since `sender` is a reference, this
// modifies `voters[msg.sender].voted`
sender.voted = true;
sender.delegate = to;
Voter storage delegate_ = voters[to];
if (delegate_.voted) {
// If the delegate already voted,
// directly add to the number of votes
proposals[delegate_.vote].voteCount += sender.weight;
} else {
// If the delegate did not vote yet,
// add to her weight.
delegate_.weight += sender.weight;
}
}

/// Give your vote (including votes delegated to you)
/// to proposal `proposals[proposal].name`.
function vote(uint proposal) public {
Voter storage sender = voters[msg.sender];
require(sender.weight != 0, "Has no right to vote");
require(!sender.voted, "Already voted.");
sender.voted = true;
sender.vote = proposal;

// If `proposal` is out of the range of the array,
// this will throw automatically and revert all
// changes.
proposals[proposal].voteCount += sender.weight;
}

/// @dev Computes the winning proposal taking all
/// previous votes into account.
function winningProposal() public view
returns (uint winningProposal_)
{
uint winningVoteCount = 0;
for (uint p = 0; p < proposals.length; p++) {
if (proposals[p].voteCount > winningVoteCount) {
winningVoteCount = proposals[p].voteCount;
winningProposal_ = p;
}
}
}

// Calls winningProposal() function to get the index
// of the winner contained in the proposals array and then
// returns the name of the winner
function winnerName() public view
returns (bytes32 winnerName_)
{
winnerName_ = proposals[winningProposal()].name;
}
}

Big Brands Trusts Us

Meet Our Solidity Smart Contract Expert

Akash Takyar

Akash Takyar

CEO, LeewayHertz

Our Engagement Models

Dedicated Development Team

Our blockchain developers are hands-on the cognitive technologies to deliver high-quality services and solutions to clients.

Team Extension

Our team extension model is intended to help clients who want to extend their team with the right expertise required for their project.

Project-based Model

Our project-based model and software development specialists are there for customer collaboration and specific client project engagement.

Get started today

1. Contact Us

Fill the contact form protected by NDA, book a calendar and schedule a Zoom Meeting with our experts.

2. Get a Consultation

Get on a call with our team to know the feasibility of your project idea.

3. Get a Cost Estimate

Based on the project requirements, we share a project proposal with budget and timeline estimates.

4. Project Kickoff

Once the project is signed, we bring together a team from a range of disciplines to kick start your project.

Get your Solidity Smart Contracts today

 Send me the signed Non-Disclosure Agreement (NDA)

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