Search Results for "contract"
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Showing 37 open source projects for "contract"
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OpenZeppelin Contracts
OpenZeppelin Contracts is a library for secure smart contracts
A library for secure smart contract development. Build on a solid foundation of community-vetted code. OpenZeppelin Contracts uses semantic versioning to communicate backward compatibility of its API and storage layout. To keep your system secure, you should always use the installed code as-is, and neither copy-paste it from online sources nor modify it yourself. -
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Krypt
Build a Web 3.0 React Solidity blockchain application
This repository accompanies a step-by-step tutorial for building a Web3 decentralized application that connects a React front end to Ethereum smart contracts written in Solidity. It walks you through setting up MetaMask, configuring a local or test blockchain, and wiring contract methods to a clean, modern UI. The project emphasizes end-to-end learning: from authoring and compiling a smart contract, to deploying it, and then interacting with it via web3 libraries in React. It demonstrates core patterns like sending transactions, reading on-chain state, and providing user feedback for pending and confirmed operations. ... -
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Node.js Testing Best Practices
Beyond the basics of Node.js testing
This repository narrows the testing lens to Node.js backends, focusing on the challenges of servers, microservices, and cloud-native deployments. It covers API testing, contract testing, and persistence-layer strategies that avoid coupling tests to fragile implementation details. The material explains how to structure tests around process boundaries—HTTP, queues, cron jobs—while keeping fast feedback cycles through selective integration tests and reliable test doubles. It dives into topics like test containers, ephemeral databases, and idempotent fixtures to ensure deterministic runs in CI. ... -
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Claude of Duty
A Call of Duty-quality FPS in Three.js, built from a single prompt
...The playable market environment includes enterable interiors, instanced props, atmospheric effects, intense combat feedback, and modern shooter controls. The repository also includes deterministic screenshot testing, image-difference checks, profiling, scripted playtests, and an architecture contract used to coordinate the agents. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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webERP Accounting & Business Management
Accounting & Best Practice Business Administration System
...Mature codebase with a wealth of features: - Multi-currency - Multi-inventory location - Serial and Lot tracking inventory - Full double entry general ledger - Weighted Average or Standard Costing - Manufacturing works orders - Material Requirements Planning - Shipment costing - Contract/job costing - Fixed asset management - Sales Analysis - Expense claims - Can be integrated with an number of 3rd party wikis Particularly suited to wholesale, distribution, manufacturing and now also as the hub for multi-branch retail businesses (with an external deskop POS add-on). Translations into over 20 Languages. Easily modifiable code, written using simple and accessible PHP for ease of maintenance and understanding. ... -
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Openbravopos
Open Source Openbravo POS convert to Commercial Retail ERP and POS
Complete and user-friendly retail POS functionality A comprehensive, flexible, and user-friendly cloud-based retail POS software. 1. Sales, quotations, reservations, and returns, including cross-store and cross-channel scenarios. 2. Automatic validation of customer personal data. 3. Configuration of keymaps for quick access to options and featured products. https://www.youtube.com/watch?v=Aai3iYLP2TQ&pp=ygUNb3BlbmJyYXZvIGtkcw%3D%3D Contact: both version of Openbravo POS... -
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Create Eth App
Create Ethereum-powered apps with one command
Create Ethereum-powered apps with one command. Create Eth App works on macOS, Windows, and Linux. If you've previously installed create-eth-app globally via yarn global add create-eth-app, we recommend you uninstall the package using yarn global remove create-eth-app and use the yarn create eth-app shorthand to ensure that you use the last version. When you’re ready to deploy to production, create a minified bundle with yarn run react-app:build. You’ll need to have Node 14 or later version... -
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web4
Web4 is a new way to distribute decentralized apps
Web4 is a new way to distribute decentralized apps. Deploy a single WASM smart contract to deploy the whole web app. You only need to deploy a single smart contract using WebAssembly to host your app's HTTP backend, static resources, and blockchain logic. There is an HTTP gateway to NEAR blockchain which allows smart contract to handle arbitrary GET requests. Every smart contract on NEAR also gets a corresponding API endpoint which can be accessed through regular HTTP requests. ... -
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Token Airdrop
Create Your Token Airdrop and Collect Fees
Create Your Token Airdrop and Collect Some Money, Increase your token holders by distributing small amount from your token to 1000's of holders, also you can collect fees. Follow this steps: 1- create airdrop contract: https://0xfactory.com/airdrop-contract 2- choose your preferred theme : https://0xfactory.com/airdrop-ui Demo: https://airdrop-ai.demo.0xfactory.com 3- edit the file "data.json" using any text editor and save 4- upload all the files to your hosting That is all.... Good luck -
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solgraph
Visualize Solidity control flow for smart contract security analysis
Visualize Solidity control flow for smart contract security analysis. Generates a DOT graph that visualizes the function control flow of a Solidity contract and highlights potential security vulnerabilities. A nice example of piping contract source that is in your clipboard through solgraph, dot, and preview: (Use whatever image previewer is available on your system; Preview.app is available on Mac) You have to have graphviz installed (brew install graphviz) to render the DOT file as an image. ... -
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Pokemons-Evolution
The contract allows to mint any pokemon, as well as evolve them
The contract allows to mint any pokemon, as well as evolve them following the rules from the official game outside the blockchain. There are 4 contracts: erc-20 standard Level.sol burnable implementation, erc-1155 Stones.sol burnable implementation, erc-1155 Pokemons.sol implementation and PokemonStorage.sol with all data of evolution chains. -
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JSON:API
A specification for building JSON APIs
...Clients and servers that follow the spec can interoperate seamlessly without custom glue code for every new service. JSON:API also emphasizes efficiency, recommending ways to reduce payload size and minimize the number of requests. Over time it has become a widely adopted contract for RESTful APIs, helping teams save time and avoid fragmentation across microservices and third-party integrations. -
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Cancelable Async Flows
Cancelable Async Flows (CAF)
...This approach avoids brittle timeouts and “fire-and-forget” leaks by making cancellation a first-class concern. CAF is framework-agnostic and pairs well with fetch, timers, or custom async primitives, giving you a consistent contract for stopping in-flight operations. The result is safer UI interactions and services that don’t keep doing work the user no longer needs. -
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Devault
Decentralized alternative to proprietary and centralized cloud storage
A Blockchain-based, self-hosted, and end-to-end encrypted cloud storage. Devault is a decentralized, self-hosted, and end-to-end encrypted alternative to proprietary and centralized cloud storage. The file gets encrypted using AES-256-CBC encryption. The encrypted file is split into pieces. The chunks are distributed across the network nodes. The root hash will be stored in your wallet on the blockchain. -
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Ambire Wallet
Making self-custody easy and secure for the EVM ecosystem
...The platform supports Ethereum and most EVM-compatible networks, allowing users to manage assets, interact with decentralized applications, and perform cross-chain operations from a unified interface. Built around smart contract wallet technology and account abstraction concepts, it enables features such as transaction batching, key rotation, multisignature support, and stablecoin gas payments. The project prioritizes usability by reducing common friction points associated with traditional crypto wallets while still preserving user ownership and privacy. ... -
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DemocracyEarth Wallet
Censorship resistant democracies
...No servers or databases are used. Control your identity with any Ethereum wallet. Contribute to the success of UBI and Proof of Humanity by leveraging ETH. Keep ETH or DAI in our smart contract vaults and help burn UBI tokens using yield. Half the yield is used to buy UBI. UBI is then burned, reducing its supply. No biometrics or real names are required. Just a quick video that proves your humanity. Audit any profile without permission. Challenged profiles go to a Kleros court. UBI is a Universal Basic Income token that gets streamed using Ethereum to verified Proof of Humanity profiles. ... -
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Helpdezk
HelpDEZk is a powerfull software that manages requests/incidents.
HelpDEZk is a powerfull software that manages requests/incidents. It has all the needed requirements to an efficient workflow management of all processes involved in service execution. This control is done for internal demands and also for outsourced services. HelpDEZk can be used at any company’s area, serving as an support to the shared service center concept, beyond the ability to log all the processes and maintain the request’s history, it can pass it through many approval... -
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Ants-Review
A Protocol for Open Anonymous Scientific Peer-Reviews on Ethereum
...After the submission of successful peer-reviews, they will be approved by an approver and payed in ANTS. AntReview Issuers are addresses, added by the owner of the contract, that can issue an AntReview via the function issueAntReview(). AntReview Approvers are addresses added by Issuers when they issue an AntReview or with the function addApprover(). -
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Scaffold-ETH
Forkable Ethereum dev stack focused on fast product iterations
scaffold-eth is a developer starter kit for building Ethereum-powered applications, bundling a smart-contract workspace with a live-reloading front end and batteries-included tooling. It provides a local blockchain environment, contract templates, and scripts for compile, deploy, verify, and test, wired to a React/Next.js UI that reflects contract state in real time. The stack encourages rapid iteration: edit a Solidity contract, redeploy with one command, and immediately interact through generated components and hooks that wrap ethers.js. ... -
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Embark
Framework for serverless Decentralized Applications using Ethereum
Embark is a platform that enables easy development and deployment of decentralized applications. Build, test, and deploy your Smart Contracts without the hassle. Embark takes care of the groundwork, watches for changes, and redeploys your application when needed. Testing shouldn't be an afterthought. Embark makes debugging and testing first-class citizens of your development workflow. Pick and choose which features, plugins and tools you want to integrate with. Embark is built with... -
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KwaMoja
Out of Africa comes KwaMoja. A fresh start for webERP!
KwaMoja is designed to help you manage your business in a more efficient and profitable manner. It combines your book keeping needs with all the tools to plan your inventory purchases. It will let you know when your factory needs to start manufacturing parts in order to keep up with orders. It will help you better manage your cash flow. All these and more will help your business become more efficient, and greater efficiency will equal greater profits. KwaMoja is a fork of the once... -
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Subspace
Library for Reactive Dapp Development with auto syncing
Subspace is a framework agnostic JS library that embraces reactive programming with RxJS, by observing asynchronous changes in Smart Contracts, and providing methods to track and subscribe to events, changes to the state of contracts and address balances, and react to these changes and events via observables. Subspace also takes care of syncing under the hood, saving & loading the state in a local database. Methods are provided to track and subscribe to events, contract & state balances, and react to changes via observables. No matter your favorite JS framework, you can use Subspace to simplify your development process. It works with React or Angular in the browser, and of course plays well with nodejs. Subspace saves state to a local database ensuring your dApp always syncs from the last known point, even after reload. -
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Ethlint
(Formerly Solium) Code quality & Security Linter for Solidity
Ethlint (Formerly Solium) analyzes your Solidity code for style & security issues and fixes them. Standardize Smart Contract practices across your organization. Integrate with your build system. Deploy with confidence! Solium does not strictly follow Solidity Style Guide. The practices it enforces by default are best practices for the community at large. If you’re using vim with syntastic, and prefer to use a locally installed version of Solium (rather than a global version), you can install syntastic local solium to automatically load the local version in packages that have installed their own. ... -
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Soy
Static Websites on the Distributed Web
Soy is a collection of smart contracts and tools to enable you to build your site on the distributed web. By virtue of using ENS and IPFS your content will be quickly accessible all over the world without having to set up or manage any infrastructure. Scripting with Soy usually looks something like this. This is an example of creating a new Soy instance and using it to register a domain and publish the content hash for the site. Once you have ENS set up to point to an ipfs hash, simply add... -
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simbol
Communications platform WebXR sites with self-sovereign identity
...Simbol accepts several configuration parameters. New worlds await us with VR and AR. A flourishing of creativity. This must happen without conceding in user experience and with an honest contract between creators and consumers regarding their data. Simbol is researching to accomplish these goals and broadcasting accomplishments made by the community via a podcast, blog and newsletter. Currently, simbol is dependent on several third-party libraries. You can check out the API in our JSDoc.