NEAR JavaScript SDK

A JavaScript library for writing NEAR smart contracts.

import { NearBindgen, near, call, view } from 'near-sdk-js';

@NearBindgen({})
class HelloNear {
  greeting: string = 'Hello';

  @view({}) // This method is read-only and can be called for free
  get_greeting(): string {
    return this.greeting;
  }

  @call({}) // This method changes the state, for which it cost gas
  set_greeting({ greeting }: { greeting: string }): void {
    near.log(`Saving greeting ${greeting}`);
    this.greeting = greeting;
  }
}

See more in the Anatomy of a Contract.

Documentation

• Learn by example with AgorApp
• Learn by example with NEAR Docs
• Check our detailed examples and tutorials
• Find source code examples with common use cases
• Lookup available features in API reference
• 🏠 Learn more about NEAR on our Documentation website
• Breaking features diff from SDK 2.0.0 to 1.0.0

Prerequisites

• node >=14 <16.6.0 || >16.6.0
• pnpm >=7

Quick Start

Use create-near-app to quickly get started writing smart contracts in JavaScript on NEAR.

npx create-near-app

This will scaffold a basic template for you 😎

Contributing

If you are interested in contributing, please look at the contributing guidelines.

• Report issues you encounter 🐞
• Provide suggestions or feedback 💡
• Show us what you've built! 💪

License

This repository is distributed under the terms of both the MIT license and the Apache License (Version 2.0). See LICENSE and LICENSE-APACHE for details.