1. FlashChat App

1.1 Introduction

Welcome to FlashChat, where seamless communication meets cutting-edge technology. Built on React Native with a robust backend powered by AWS Amplify, FlashChat revolutionizes the way you connect and interact in real-time.

What is FlashChat?

FlashChat is a dynamic, intuitive mobile application designed for instant messaging and seamless communication. Whether you’re connecting with friends, family, or colleagues, FlashChat ensures your conversations are fast, reliable, and secure.

Key Features:

  • Real-Time Messaging: Experience instant delivery of messages, ensuring your conversations flow smoothly without delays.
  • Rich User Experience: Built on React Native, FlashChat offers a sleek, responsive interface that adapts seamlessly across devices.
  • Scalable Backend: Powered by AWS Amplify, FlashChat’s backend ensures robust scalability, security, and reliability, so your chats are always accessible.
  • Multi-platform Support: Available on both iOS and Android platforms, FlashChat caters to a wide audience, allowing everyone to stay connected effortlessly.

Why Choose FlashChat?

Whether you’re sharing updates, organizing events, or simply staying in touch, FlashChat simplifies communication with its intuitive design and powerful features. Join the millions who have embraced FlashChat as their preferred real-time chat application.

Get Started Today:

Buy FlashChat now and experience a new era of communication. Stay connected, stay informed, and stay ahead with FlashChat—where every message matters.

FlashChat: Connecting the world, one message at a time.

1.2 Basic Setup & Requirements

Basic Setup & Requirements for FlashChat

1. Installation:

  • React Native Environment: Ensure you have Node.js and npm installed. Set up React Native CLI for development.
  • AWS Amplify CLI: Install the AWS Amplify CLI globally using npm:
    npm install -g @aws-amplify/cli

2. Project Initialization:

  • Create React Native Project: Initialize a new React Native project (if not already created): npx react-native init FlashChat cd FlashChat
  • Set Up AWS Amplify:
    • Configure AWS Amplify within your project:
      amplify configure
    • Initialize Amplify in your project directory:
      amplify init
    • Follow the prompts to set up your AWS services (authentication, database, etc.).

3. AWS Services Setup:

  • Authentication (Optional but recommended): Set up authentication using Amazon Cognito for secure user management. amplify add auth amplify push
  • Real-Time Database:
    • Choose a database solution like Amazon DynamoDB for storing chat messages:
      amplify add api
    • Select “GraphQL” as the API type and configure your schema accordingly.

4. Integration & Development:

  • Integrate AWS Amplify with React Native:
    • Install Amplify libraries:
    npm install aws-amplify aws-amplify-react-native
    • Configure Amplify in your React Native project:
    import Amplify from 'aws-amplify'; import awsconfig from './aws-exports'; Amplify.configure(awsconfig);
  • Developing FlashChat:
    • Implement chat UI components using React Native’s components and styling.
    • Use AWS Amplify’s APIs for real-time messaging and data synchronization.

5. Testing and Deployment:

  • Testing: Test your application thoroughly on both iOS and Android devices or emulators.
  • Deployment: Prepare your app for deployment to the App Store and Google Play Store following their respective guidelines.

6. Additional Considerations:

  • Security: Implement secure authentication and data encryption practices.
  • Performance: Optimize your application for responsiveness and smooth user experience.
  • Scalability: Ensure your AWS services are configured for scalability as your user base grows.

By following these setup instructions and requirements, you can create a robust real-time chatting application like FlashChat using React Native and AWS Amplify, empowering users with seamless communication capabilities.

1.3 AWS Setup

1.3.1 AWS Amplify

AWS Setup for FlashChat using AWS Amplify

1. Install AWS Amplify CLI:

  • Install the AWS Amplify CLI globally using npm:
    npm install -g @aws-amplify/cli

2. Initialize AWS Amplify in Your Project:

  • Navigate to your React Native project directory:
    cd FlashChat
  • Initialize AWS Amplify:
    amplify init
  • Follow the prompts to configure your AWS Amplify project, including region, username, and other project details.

3. Add Authentication (Optional but Recommended):

  • Set up authentication using Amazon Cognito for secure user management:
    amplify add auth
  • Follow the prompts to configure authentication options such as email/username login, MFA, and more.
  • Deploy your authentication configuration:
    amplify push

4. Set Up API (GraphQL API for Real-Time Messaging):

  • Add a GraphQL API for real-time messaging and data synchronization:
    amplify add api
  • Choose “GraphQL” as the API type and follow the prompts to configure your schema and API settings.
  • Deploy your API:
    amplify push

5. Integrate AWS Amplify with Your React Native Project:

  • Install necessary Amplify libraries:
    npm install aws-amplify aws-amplify-react-native
  • Configure Amplify in your React Native project:
    javascript // In your App.js or index.js file import Amplify from 'aws-amplify'; import awsconfig from './aws-exports'; Amplify.configure(awsconfig);

6. Usage of AWS Amplify in FlashChat:

  • Utilize AWS Amplify APIs for real-time messaging, user authentication, and more in your React Native application.

By following these steps, you can set up AWS Amplify in your FlashChat React Native application, leveraging AWS services for authentication, real-time messaging, and data management to create a robust and scalable chat application.

1.3.1 AWS S3

AWS S3 Setup for FlashChat

1. Install AWS Amplify CLI:

  • Install the AWS Amplify CLI globally using npm:
    npm install -g @aws-amplify/cli

2. Initialize AWS Amplify in Your Project:

  • Navigate to your React Native project directory:
    cd FlashChat
  • Initialize AWS Amplify:
    amplify init
  • Follow the prompts to configure your AWS Amplify project, including region, username, and other project details.

3. Add AWS S3 Storage:

  • Add AWS S3 storage to your project:
    amplify add storage
  • Choose “Content (Images, audio, video, etc.)” as the storage type.
  • Follow the prompts to configure your AWS S3 storage options, including bucket name and permissions.

4. Integrate AWS Amplify Storage with Your React Native Project:

  • Install necessary Amplify libraries:
    npm install aws-amplify aws-amplify-react-native
  • Configure Amplify in your React Native project:
    javascript // In your App.js or index.js file import Amplify from 'aws-amplify'; import awsconfig from './aws-exports'; Amplify.configure(awsconfig);

5. Usage of AWS S3 in FlashChat:

  • Upload files to AWS S3 from your React Native application: import { Storage } from 'aws-amplify'; // Example function to upload a file to S3 const uploadFileToS3 = async (file) => { try { const result = await Storage.put('your-file-name.jpg', file, { contentType: 'image/jpeg' // Set the content type of the file }); console.log('Uploaded file: ', result.key); } catch (error) { console.error('Error uploading file: ', error); } }

6. Additional AWS Amplify Features (Optional):

  • Authentication: Secure user authentication using Amazon Cognito.
    amplify add auth amplify push
  • APIs: Set up GraphQL APIs for real-time data synchronization.
    amplify add api

By following these steps, you can set up AWS S3 storage in your FlashChat React Native application using AWS Amplify, enabling secure and scalable file storage capabilities integrated with your chat application.

1.4 Setup Android App

1.5 Setup iOS App

1.6 3rd Party Integration

1.8 Build Android App (.apk, .aab)

1.9 Build/Release iOS App

2. Sigmate - MultiSig Wallet

2.1 Introduction

🔐 Sigmate – The Ultimate Full-Stack Multisig Wallet Solution for Web3

In the world of decentralized finance, security and collaboration are no longer optional — they are essential. Sigmate is a next-generation, production-ready multi-signature wallet platform designed to meet these exact needs. Whether you’re building a DAO, managing a community treasury, or securing startup funds, Sigmate empowers teams to manage digital assets with trust, transparency, and control.


🧠 What is Sigmate?

Sigmate is a full-stack decentralized application (DApp) that enables multi-owner wallets with advanced approval mechanisms. Every transaction goes through a proposal, review, and approval process — ensuring that no single user has unilateral control. This approach protects funds from misuse, human error, or malicious intent, and reinforces collective governance, especially in crypto-native teams and projects.

With React.js and Next.js powering the frontend, a robust Node.js + Express.js backend, and secure Solidity-based smart contracts, Sigmate offers a complete, modular, and developer-friendly solution you can deploy instantly on Ethereum, Polygon, Binance Smart Chain, or any EVM-compatible chain.


🚀 Why Choose Sigmate?

  • Decentralized Governance: Secure assets through 2-of-3, 3-of-5, or customizable M-of-N signature schemes.
  • Production Ready: Built with scalable technologies like Next.js, Node.js, and Solidity, ready for mainnet deployment.
  • Clean UI & UX: User-friendly dashboard for wallet owners to track activity, propose transactions, and approve them with ease.
  • Smart Contract Driven: All critical logic is handled on-chain via well-audited smart contracts.
  • Plug-and-Play Backend: Optional backend API with activity logging, metadata handling, and email notifications.
  • Developer Friendly: Clear folder structure, reusable components, .env configs, and step-by-step documentation for smooth setup and deployment.

🔧 Built For

  • Crypto Startups & Founders – Manage shared funds securely with co-founders and investors.
  • DAOs (Decentralized Autonomous Organizations) – Execute collective decision-making on fund management.
  • Agencies & Web3 Dev Teams – Offer ready-to-deploy multisig solutions for your clients.
  • Hackathons & MVPs – Instantly demonstrate a working, secure Web3 wallet with multisig functionality.

⚙️ Tech Stack Overview

  • Frontend: Next.js, React.js, Web3.js
  • Backend: Node.js, Express.js
  • Smart Contracts: Solidity
  • Blockchain Support: Ethereum, Polygon (Mumbai), BSC, and all EVM-compatible chains
  • Wallet Support: MetaMask, WalletConnect
  • Optional Database: MongoDB or PostgreSQL (for activity logs or analytics)

📦 What’s Included in the Package?

  • ✅ Full Source Code (Frontend + Backend + Smart Contracts)
  • ✅ Smart Contract Deployment Scripts
  • ✅ Sample Environment Configs (.env.example)
  • ✅ Step-by-Step Installation Guide (PDF/Markdown)
  • ✅ Sample Data & Test Wallet Addresses
  • ✅ UI Screenshots & CodeCanyon Preview Assets
  • ✅ Lifetime Free Updates & Basic Support

🧩 Use Case Examples

  • 🏦 DAO Vault where funds are released only after a minimum number of approvals.
  • 🚀 Startup Fund Wallet with 2-of-3 founder access.
  • 🎓 Educational DApp to demonstrate smart contract-based multi-ownership in blockchain courses.
  • 🛡️ Community wallet for NFT or token project to fund development collectively.

🧭 Final Thoughts

Sigmate isn’t just a wallet — it’s a foundation for building trust-based decentralized systems. In an age where on-chain transparency and control are vital, Sigmate provides an elegant and robust solution for managing digital assets collaboratively. Whether you’re a solo developer, a fast-scaling startup, or a governance-focused organization, Sigmate will give you the tools to build securely, scale confidently, and operate transparently.

2.2 Basic Setup & Requirements

Welcome to Sigmate – a secure, full-stack multisig wallet system powered by Solidity, Node.js, and React.js. This document will guide you through setting up the project on your local or server environment.


📁 Included in the Download Package

Your downloaded ZIP file from CodeCanyon contains the following folders:

graphqlCopyEditSigmate/
├── frontend/           # Frontend application (Next.js + React.js)
├── backend/            # Backend API server (Node.js + Express)
├── smart-contracts/    # Solidity contracts (Hardhat)
├── documentation/      # Full documentation files
└── README.md           # Quick start guide

🛠️ System Requirements

Make sure your system has the following installed:

ToolVersionDescription
Node.jsv18+Required for running backend and frontend
NPMv8+Dependency installer (Node Package Manager)
HardhatLatestFor compiling and deploying smart contracts
MongoDBOptionalFor backend storage (e.g., transaction logs)
MetaMaskLatestBrowser wallet for Ethereum interaction

2.3 🔧 Installation & Setup Instructions

✅ 1. Install Smart Contracts

  1. Open terminal and go to the smart-contracts folder:
cd smart-contracts
npm install
  1. Compile contracts:
npx hardhat compile
  1. Edit hardhat.config.js with your Infura key and private key.
  2. Deploy to a testnet like Goerli:
npx hardhat run scripts/deploy.js --network goerli

✅ 2. Set Up the Backend (Node.js API)

  1. Go to the backend folder:
cd ../backend
npm install
  1. Create and configure .env file:
cp .env.example .env

Edit it with your credentials:

PORT=4000
MONGO_URI=your_mongodb_uri_here
INFURA_KEY=your_infura_key
PRIVATE_KEY=your_wallet_private_key
  1. Start backend server:
npm run dev

✅ 3. Set Up the Frontend (Next.js + React)

  1. Go to the frontend folder:
cd ../frontend
npm install
  1. Create .env.local file:
cp .env.local.example .env.local

Fill it with appropriate values:

NEXT_PUBLIC_API_URL=http://localhost:4000
NEXT_PUBLIC_CONTRACT_ADDRESS=your_deployed_contract_address
  1. Start the frontend app:
npm run dev

Frontend will run at: http://localhost:3000

🧪 Test the Setup

  • Open the frontend in your browser
  • Connect your MetaMask wallet
  • Create a new multisig wallet
  • Propose, approve, and execute transactions

📦 Notes

  • Supports EVM chains (Ethereum, Polygon, BSC, etc.)
  • Clean modular code for easy customization
  • Smart contracts are audit-friendly

🔧 Installation & Setup Instructions

✅ 1. Install Smart Contracts Open terminal and go to the smart-contracts folde...

Basic Setup & Requirements

Welcome to Sigmate – a secure, full-stack multisig wallet system powered by So...

Introduction

🔐 Sigmate – The Ultimate Full-Stack Multisig Wallet Solution for Web3 In th...

Sigmate – MultiSig Wallet

Build/Release iOS App

Build Android App (.apk, .aab)

Link Apps with Firebase

3rd Party Integration

Setup iOS App

Setup Android App

AWS S3

AWS S3 Setup for FlashChat 1. Install AWS Amplify CLI: 2. Initialize AWS Amplify...

AWS Amplify

AWS Setup for FlashChat using AWS Amplify 1. Install AWS Amplify CLI: 2. Initial...

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