https://github.com/scrypt-inc/counter-demos

https://github.com/scrypt-inc/counter-demos

Last synced: 19 days ago
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• Host: GitHub
• URL: https://github.com/scrypt-inc/counter-demos
• Owner: sCrypt-Inc
• Created: 2023-07-29T17:09:42.000Z (over 1 year ago)
• Default Branch: master
• Last Pushed: 2023-08-02T03:16:57.000Z (over 1 year ago)
• Last Synced: 2024-11-05T09:37:25.265Z (2 months ago)
• Size: 4.88 KB
• Stars: 4
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# counter-demos

![](https://aaron67-public.oss-cn-beijing.aliyuncs.com/202307151317201.png)

## deployments

- [React](https://counter-react-pearl.vercel.app/)

- [Next.js](https://counter-next-psi.vercel.app/)

- [Angular](https://counter-angular-sigma.vercel.app/)

- [Svelte](https://counter-svelte-eight.vercel.app/)

- Vue 3.x

  - [bundled with Vite](https://counter-vue3-vite.vercel.app/)

  - [bundled with Webpack](https://counter-vue3-webpack.vercel.app/)

- Vue 2.x

  - [bundled with Vite](https://counter-vue2-vite.vercel.app/)

  - [bundled with Webpack](https://counter-vue2-webpack.vercel.app/)

## contract

```ts

import { method, prop, SmartContract, hash256, assert, ByteString, SigHash } from 'scrypt-ts'

export class Counter extends SmartContract {

    @prop(true)

    count: bigint

    constructor(count: bigint) {

        super(count)

        this.count = count

    }

    @method(SigHash.SINGLE)

    public increment() {

        this.count++

        // make sure balance in the contract does not change

        const amount: bigint = this.ctx.utxo.value

        // output containing the latest state

        const output: ByteString = this.buildStateOutput(amount)

        // verify current tx has this single output

        assert(this.ctx.hashOutputs === hash256(output), 'hashOutputs mismatch')

    }

}

```