예제와 함께 스마트 계약을 배포하는 초보자 가이드

목차

기초

스마트 계약이란 무엇입니까?

하나를 작성하는 방법?

전제 조건

소개

초기 상태 설정

{
  "owner": "6Jfg5shIvbAcgoD04mOppSxL6LAqx6IfjL0JexxpmFQ",
  "name": "Tabs over Spaces",
  "description":"This is my first petition. Please vote this petition to make spaces illegal",
  "funds":{
    "raised":0,
    "goal":100,
    "records":{

    }
  }  
}

{
    "owner": "6Jfg5shIvbAcgoD04mOppSxL6LAqx6IfjL0JexxpmFQ",
    "name": "CrowdSource | PeopleHelpPeople",
    "collections":{}
  }

상태 업데이트 중

징수 계약 등록

export function handle(state, action) {

    if (action.input.function === 'enlist') {
        if (typeof action.input.listingId === 'undefined') {
            throw new ContractError(`PetitionId cant be null`)
        }
        if (state.collections.hasOwnProperty(action.input.listingId)) {
            throw new ContractError(`PetitionId already exists`)
        }
        state.collections[action.input.listingId] = 1
        return { state }
    }

    throw new ContractError('Invalid input')
}

{
  "owner": "6Jfg5shIvbAcgoD04mOppSxL6LAqx6IfjL0JexxpmFQ",
  "name": "CrowdSource | PeopleHelpPeople",
  "collections": {
    "Ji6MP-Wt_LYk6yaTsxEnhlpbRpAu08248PUTxnp2qOU": 1
  }
}

징수 계약에 기부

Since I used Finnie wallet, I put my Finnie address inside the owner field.

export function handle(state, action) {

    if (action.input.function === 'donate') {
        if (typeof action.input.donorId === 'undefined') {
            throw new ContractError(`DonorId cant be null`)
        }
        if (typeof action.input.amount === 'undefined') {
            throw new ContractError(`amount cant be null`)
        }

        if (typeof action.input.amount !== 'number') {
            throw new ContractError(`amount must be a number`)
        }

        state.funds.records[action.input.donorId] = action.input.amount;
        state.funds.raised += action.input.amount;
        return { state }
    }
    throw new ContractError('Invalid input')
}

The default currency is assumed to be KOII. Again a place for improvement. To support various currencies, currency field could be added to the record.

{
  "owner": "6Jfg5shIvbAcgoD04mOppSxL6LAqx6IfjL0JexxpmFQ",
  "name": "Tabs over Spaces",
  "description": "This is my first petition. Please vote this petition to make spaces illegal",
  "funds": {
    "raised": 1.2109999999999999,
    "goal": 100,
    "records": {
      "Ji6MP-Wt_LYk6yaTsxEnhlpbRpAu0824": 1.21,
      "6Jfg5shIvbAcgoD04mOppSxL6LAqx6IfjL0JexxpmFQ": 0.001
    }
  }
}

전개

smartweave create [SRC LOCATION] [INITIAL STATE FILE] --key-file [YOUR KEYFILE]

arweave status [CONTRACT TXID]

smartweave read [CONTRACT TXID]

For a web GUI experience, check out Viewblock.io. Its a handy website to check all the information about your contracts state, tags and transactions.

계약과 상호 작용

smartweave write [CONTRACT TXID] --key-file [YOUR KEYFILE] \
  --input "[CONTRACT INPUT STRING HERE]"

smartweave write [Parent Crowdsource Contract TXID] --key-file [YOUR KEYFILE] --input "{"function":"enlist","listingId":"<Collection contract TXID>"}"

smartweave write [Collection Contract] --key-file [YOUR KEYFILE] --input '{"function":"donate","donorId":"<Donor wallet address>","amount":<number of tokens>}'

요약

보너스 팁

내 프로젝트 정보

I had to struggle a lot to walk through the right steps in order to learn this. So I tried my best to make the learning smooth for a beginner. Please share your feedbacks in the comments.

운동에 참여하세요