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Merge pull request #87 from MeshJS/dandelion
Dandelion Support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| import { useEffect, useState } from 'react'; | ||
| import SectionTwoCol from '../../common/sectionTwoCol'; | ||
| import { demoAddresses } from '../../../configs/demo'; | ||
| import { BadgeEvaluator } from './badges'; | ||
| import { evaluateTxLeft, evaluateTxRight } from './evaluator/evaluateTx'; | ||
| import { useWallet } from '@meshsdk/react'; | ||
|
|
||
| export default function Evaluator({ evaluator, evaluatorName }) { | ||
| const { wallet, connected } = useWallet(); | ||
| const [address, setAddress] = useState<string>(demoAddresses.testnet); | ||
| // const [lovelace, setLovelace] = useState<string>('5000000'); | ||
|
|
||
| useEffect(() => { | ||
| async function init() { | ||
| setAddress( | ||
| (await wallet.getNetworkId()) === 1 | ||
| ? demoAddresses.mainnet | ||
| : demoAddresses.testnet | ||
| ); | ||
| } | ||
| if (connected) { | ||
| init(); | ||
| } | ||
| }, [connected]); | ||
|
|
||
| return ( | ||
| <> | ||
| <SectionTwoCol | ||
| sidebarTo="evaluateTx" | ||
| header="evaluateTx" | ||
| leftFn={evaluateTxLeft({ | ||
| evaluatorName, | ||
| })} | ||
| rightFn={evaluateTxRight({ | ||
| evaluator, | ||
| })} | ||
| isH3={true} | ||
| badge={<BadgeEvaluator />} | ||
| /> | ||
| </> | ||
| ); | ||
| } |
143 changes: 143 additions & 0 deletions
143
packages/demo/components/pages/providers/evaluator/evaluateTx.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,143 @@ | ||
| import { useState } from 'react'; | ||
| import RunDemoButton from '../../../common/runDemoButton'; | ||
| import RunDemoResult from '../../../common/runDemoResult'; | ||
| import Card from '../../../ui/card'; | ||
| import Codeblock from '../../../ui/codeblock'; | ||
| import { Transaction, KoiosProvider, resolveDataHash } from '@meshsdk/core'; | ||
| import { useWallet, CardanoWallet } from '@meshsdk/react'; | ||
|
|
||
| export function evaluateTxLeft({ evaluatorName }) { | ||
| let code1 = ``; | ||
| code1 += `const unsignedTx = await tx.build();\n`; | ||
| code1 += `const evaluateTx = await ${evaluatorName}.evaluateTx(unsignedTx);\n`; | ||
|
|
||
| let demoResults = ``; | ||
| demoResults += `[\n`; | ||
| demoResults += ` {\n`; | ||
| demoResults += ` "index": 0,\n`; | ||
| demoResults += ` "tag": "SPEND",\n`; | ||
| demoResults += ` "budget": {\n`; | ||
| demoResults += ` "mem": 1700,\n`; | ||
| demoResults += ` "steps": 368100\n`; | ||
| demoResults += ` }\n`; | ||
| demoResults += ` }\n`; | ||
| demoResults += `]\n`; | ||
|
|
||
| let codeRedeemer = ``; | ||
| codeRedeemer += `const redeemer = {\n`; | ||
| codeRedeemer += ` data: { alternative: 0, fields: [...] },\n`; | ||
| codeRedeemer += ` budget: {\n`; | ||
| codeRedeemer += ` mem: 1700,\n`; | ||
| codeRedeemer += ` steps: 368100,\n`; | ||
| codeRedeemer += ` },\n`; | ||
| codeRedeemer += `};\n`; | ||
|
|
||
| return ( | ||
| <> | ||
| <p> | ||
| <code>evaluateTx()</code> accepts an unsigned transaction ( | ||
| <code>unsignedTx</code>) and it evaluates the resources required to | ||
| execute the transaction. Note that, this is only valid for transaction | ||
| interacting with redeemer (smart contract). By knowing the budget | ||
| required, you can use this to adjust the redeemer's budget so you don't | ||
| spend more than you need to execute transactions for this smart | ||
| contract. | ||
| </p> | ||
| <Codeblock data={code1} isJson={false} /> | ||
| <p> | ||
| Example responses from unlocking assets from the always succeed smart | ||
| contract. | ||
| </p> | ||
| <Codeblock data={demoResults} isJson={false} /> | ||
| <p> | ||
| With the <code>mem</code> and <code>steps</code>, you can refine the | ||
| budget for the redeemer. For example: | ||
| </p> | ||
| <Codeblock data={codeRedeemer} isJson={false} /> | ||
| </> | ||
| ); | ||
| } | ||
|
|
||
| export function evaluateTxRight({ evaluator }) { | ||
| const { wallet, connected } = useWallet(); | ||
| const [loading, setLoading] = useState<boolean>(false); | ||
| const [response, setResponse] = useState<null | any>(null); | ||
| const [responseError, setResponseError] = useState<null | any>(null); | ||
|
|
||
| async function _getAssetUtxo({ scriptAddress, asset, datum }) { | ||
| const koios = new KoiosProvider('preprod'); | ||
|
|
||
| const utxos = await koios.fetchAddressUTxOs(scriptAddress, asset); | ||
|
|
||
| const dataHash = resolveDataHash(datum); | ||
|
|
||
| let utxo = utxos.find((utxo: any) => { | ||
| return utxo.output.dataHash == dataHash; | ||
| }); | ||
|
|
||
| return utxo; | ||
| } | ||
|
|
||
| async function runDemo() { | ||
| setLoading(true); | ||
| setResponse(null); | ||
| setResponseError(null); | ||
|
|
||
| try { | ||
| const assetUtxo = await _getAssetUtxo({ | ||
| scriptAddress: | ||
| 'addr_test1wpnlxv2xv9a9ucvnvzqakwepzl9ltx7jzgm53av2e9ncv4sysemm8', | ||
| asset: | ||
| '64af286e2ad0df4de2e7de15f8ff5b3d27faecf4ab2757056d860a424d657368546f6b656e', | ||
| datum: 'supersecretmeshdemo', | ||
| }); | ||
|
|
||
| const address = await wallet.getChangeAddress(); | ||
|
|
||
| const tx = new Transaction({ initiator: wallet }) | ||
| .redeemValue({ | ||
| value: assetUtxo, | ||
| script: { | ||
| version: 'V1', | ||
| code: '4e4d01000033222220051200120011', | ||
| }, | ||
| datum: 'supersecretmeshdemo', | ||
| }) | ||
| .sendValue(address, assetUtxo) | ||
| .setRequiredSigners([address]); | ||
|
|
||
| const unsignedTx = await tx.build(); | ||
| const evaluateTx = await evaluator.evaluateTx(unsignedTx); | ||
|
|
||
| setResponse(evaluateTx); | ||
| } catch (error) { | ||
| setResponseError(`${error}`); | ||
| } | ||
| setLoading(false); | ||
| } | ||
|
|
||
| return ( | ||
| <> | ||
| <Card> | ||
| <p> | ||
| Unlock an asset from the always succeed to check how much it takes to | ||
| execute this transaction. | ||
| </p> | ||
| {connected ? ( | ||
| <> | ||
| <RunDemoButton | ||
| runDemoFn={runDemo} | ||
| loading={loading} | ||
| response={response} | ||
| /> | ||
| </> | ||
| ) : ( | ||
| <CardanoWallet /> | ||
| )} | ||
|
|
||
| <RunDemoResult response={response} label="Response evaluateTx" /> | ||
| <RunDemoResult response={responseError} label="Error" /> | ||
| </Card> | ||
| </> | ||
| ); | ||
| } |
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Successfully deployed to the following URLs:
mesh-playground – ./
mesh-playground.vercel.app
mesh-playground-meshsdk.vercel.app
www.meshjs.dev
meshjs.dev
mesh-playground-git-main-meshsdk.vercel.app