契約の@taquitoでベイカーとストレージの料金を見積もる方法は？

Question

契約の@taquitoでベイカーとストレージの料金を見積もる方法は？

4

115 2020-02-04

ユーザーの資金を保持し、署名されたメッセージを送信することで引き出すことができるシンプルなスマートコントラクトがあります.

ただし、ユーザーが契約に資金を送るたびに支払う必要のある料金を予測できるようにしたいと思います.

コントラクト抽象化オブジェクトを使用して、タキートライブラリとのコントラクトを適切に呼び出すことができます.

 const operation = await contract.methods
        .feedUserAccount(this.tezosAddress)
        .send({ amount });

ただし、EstimationProviderクラスでテストすると、TezosOperationErrorが発生します:

 try{
    const e = await Tezos.contract.at("KT1KBhwoSeqJt26oK8yjubTfdSgDuaVC87xR");
    const o = await Tezos.estimate.transfer({ 
      to: "KT1KBhwoSeqJt26oK8yjubTfdSgDuaVC87xR", 
      amount: 1,
      source: "tz1wWzjK62ft3jufvrua6zfT3sLVmo7776kq",
      parameter: {
        entrypoint: 'feedUserAccount',
        value: {prim:"Left",args:[{prim:"Left",args:[{prim:"Right",args:[{string:"tz1wWzjK62ft3jufvrua6zfT3sLVmo7776kq"}]}]}]}
      }
    });
    console.log(o.suggestedFeeMutez);

エラーメッセージ:

 TezosOperationError {
  errors: 
   [ { kind: 'permanent',
       id: 'proto.005-PsBabyM1.michelson_v1.bad_contract_parameter',
       contract: 'KT1KBhwoSeqJt26oK8yjubTfdSgDuaVC87xR' },
     { kind: 'permanent',
       id: 'proto.005-PsBabyM1.invalidSyntacticConstantError',
       location: 0,
       expectedForm: [Object],
       wrongExpression: [Object] },
     { kind: 'permanent',
       id: 'proto.005-PsBabyM1.invalidSyntacticConstantError',
       location: 0,
       expectedForm: [Object],
       wrongExpression: [Object] },
     { kind: 'permanent',
       id: 'proto.005-PsBabyM1.invalidSyntacticConstantError',
       location: 0,
       expectedForm: [Object],
       wrongExpression: [Object] },
     { kind: 'permanent',
       id: 'proto.005-PsBabyM1.invalidSyntacticConstantError',
       location: 0,
       expectedForm: [Object],
       wrongExpression: [Object] },
     { kind: 'permanent',
       id: 'proto.005-PsBabyM1.michelson_v1.invalid_expression_kind',
       location: 0,
       expected_kinds: [Array],
       wrong_kind: 'primitiveApplication' } ],
  name: 'TezosOperationError',
  id: 'proto.005-PsBabyM1.michelson_v1.invalid_expression_kind',
  kind: 'permanent',
  message: '(permanent) proto.005-PsBabyM1.michelson_v1.invalid_expression_kind' }

feedUserAccountはkey_hashを想定しており、SmartPYエクスプローラーを使用してvalueパラメーターを生成しました. しかし、それを機能させることはできません.それはライブラリですか、それともクエリを生成する方法ですか?

babylonet契約は、次のアドレスにあります:KT1KBhwoSeqJt26oK8yjubTfdSgDuaVC87xR

I have a simple smart-contract that holds user funds and that can be withdrawn by sending a signed message.

However, I would like to offer the possibility for users to anticipate the fees they have to pay everytime they send funds to the contract.

I can properly call the contract with the taquito library by using the contract abstraction object:

const operation = await contract.methods
        .feedUserAccount(this.tezosAddress)
        .send({ amount });

However, when I test it with the EstimationProvider class, I get a TezosOperationError:

try{
    const e = await Tezos.contract.at("KT1KBhwoSeqJt26oK8yjubTfdSgDuaVC87xR");
    const o = await Tezos.estimate.transfer({ 
      to: "KT1KBhwoSeqJt26oK8yjubTfdSgDuaVC87xR", 
      amount: 1,
      source: "tz1wWzjK62ft3jufvrua6zfT3sLVmo7776kq",
      parameter: {
        entrypoint: 'feedUserAccount',
        value: {prim:"Left",args:[{prim:"Left",args:[{prim:"Right",args:[{string:"tz1wWzjK62ft3jufvrua6zfT3sLVmo7776kq"}]}]}]}
      }
    });
    console.log(o.suggestedFeeMutez);

Error message:

TezosOperationError {
  errors: 
   [ { kind: 'permanent',
       id: 'proto.005-PsBabyM1.michelson_v1.bad_contract_parameter',
       contract: 'KT1KBhwoSeqJt26oK8yjubTfdSgDuaVC87xR' },
     { kind: 'permanent',
       id: 'proto.005-PsBabyM1.invalidSyntacticConstantError',
       location: 0,
       expectedForm: [Object],
       wrongExpression: [Object] },
     { kind: 'permanent',
       id: 'proto.005-PsBabyM1.invalidSyntacticConstantError',
       location: 0,
       expectedForm: [Object],
       wrongExpression: [Object] },
     { kind: 'permanent',
       id: 'proto.005-PsBabyM1.invalidSyntacticConstantError',
       location: 0,
       expectedForm: [Object],
       wrongExpression: [Object] },
     { kind: 'permanent',
       id: 'proto.005-PsBabyM1.invalidSyntacticConstantError',
       location: 0,
       expectedForm: [Object],
       wrongExpression: [Object] },
     { kind: 'permanent',
       id: 'proto.005-PsBabyM1.michelson_v1.invalid_expression_kind',
       location: 0,
       expected_kinds: [Array],
       wrong_kind: 'primitiveApplication' } ],
  name: 'TezosOperationError',
  id: 'proto.005-PsBabyM1.michelson_v1.invalid_expression_kind',
  kind: 'permanent',
  message: '(permanent) proto.005-PsBabyM1.michelson_v1.invalid_expression_kind' }

The feedUserAccount expects a key_hash and I generated the value parameter with SmartPY explorer. But I can't make it work, is it the library or the way I generate the query?

The babylonet contract can be found at this address: KT1KBhwoSeqJt26oK8yjubTfdSgDuaVC87xR

- 申し訳ありませんが、私はタキートの輸出ではありません.見積もり担当者のドキュメントへの参照はありますか?デバッグモードでtaquitoを実行して、基になるRPC呼び出しが表示される方法があるかどうかを知っていますか?それはあなたが受け取るエラーを理解するのに役立ちます.
  
  Sorry, I'm not an export on taquito. Do you have any reference to the documentation of the estimator? Do you know if there is a way of running taquito in a debugging mode, so that the underlying RPC calls are visible? That would help to understand the error you receive.
  - 0
  - 2020-02-04
  - arvidj
- tezos-dev slackから、#taquito:「スクリプトがブラウザで実行されている場合は、ブラウザのデバッグコンソール/ネットワークタブを使用できます」.この出力は、エラーの診断に役立つと思います.
  
  From the tezos-dev slack, #taquito: "if your script runs in the browser, you can use the browser’s debugging console/network tab". I think this output could help to diagnose your error.
  - 0
  - 2020-02-04
  - arvidj

1 回答

投票

Jev Björsell · Answer 1 · 2020-03-04

3

2020-03-04

推定するメソッドでtoTransferParams({amount: 5})を呼び出し、その結果をTezos.estimate.transfer()

その結果は次のようになります:

 Estimate {
  _gasLimit: 66993,
  _storageLimit: 0,
  opSize: 216,
  baseFeeMutez: 100
}

完全な例:

 Tezos.contract.at('KT1KBhwoSeqJt26oK8yjubTfdSgDuaVC87xR'))
.then(contract => {
    const amt = 5
    return contract.methods
       .feedUserAccount('tz3WQjEGvpjnb6h6h8zmrFmhzeEzXSDddz6H')
       .toTransferParams({amount: 5});
    })
.then(tx => {
    console.log(tx)
    return Tezos.estimate.transfer(tx)
})
.then(est => console.log(est))
.catch(error => console.log(error))

You can call toTransferParams({amount: 5}) on the method you want to estimate, and pass that result to Tezos.estimate.transfer()

The results of which will look something like:

Estimate {
  _gasLimit: 66993,
  _storageLimit: 0,
  opSize: 216,
  baseFeeMutez: 100
}

Full example:

Tezos.contract.at('KT1KBhwoSeqJt26oK8yjubTfdSgDuaVC87xR'))
.then(contract => {
    const amt = 5
    return contract.methods
       .feedUserAccount('tz3WQjEGvpjnb6h6h8zmrFmhzeEzXSDddz6H')
       .toTransferParams({amount: 5});
    })
.then(tx => {
    console.log(tx)
    return Tezos.estimate.transfer(tx)
})
.then(est => console.log(est))
.catch(error => console.log(error))