Files
xrpl-dev-portal/static/js/tutorials/create-amm.js
Mayukha Vadari 0b247281eb run prettier
2026-01-12 14:19:31 -05:00

298 lines
10 KiB
JavaScript

// 1. Generate
// 2. Connect
// The code for these steps is handled by interactive-tutorial.js
onCurrentRouteLoaded(() => {
const EXPLORER = $('#connect-button').data('explorer')
$('#get-foo').click(async (event) => {
const block = $(event.target).closest('.interactive-block')
const wallet = get_wallet(event)
if (!wallet) {
return
}
const currency_code = 'FOO'
const issue_quantity = '1000'
block.find('.loader').show()
show_log(block, '<p>Funding an issuer address with the faucet...</p>')
const issuer = (await api.fundWallet()).wallet
show_log(block, `<p>Got issuer <span id="issuer-address" data-seed="${issuer.seed}">${issuer.address}</span>.</p>`)
$('.foo-issuer').text(issuer.address) // Update display in the "Create AMM" step
// Enable issuer DefaultRipple ----------------------------------------------
const issuer_setup_tx = {
TransactionType: 'AccountSet',
Account: issuer.address,
SetFlag: xrpl.AccountSetAsfFlags.asfDefaultRipple,
}
add_memo(event, issuer_setup_tx)
const issuer_setup_result = await api.submitAndWait(issuer_setup_tx, { autofill: true, wallet: issuer })
if (issuer_setup_result.result.meta.TransactionResult == 'tesSUCCESS') {
show_log(block, `<p><a href="${EXPLORER}/transactions/${issuer_setup_result.result.hash}">✅ Issuer DefaultRipple enabled</a></p>`)
} else {
show_error(block, `Error sending transaction: <pre><code>${pretty_print(issuer_setup_result)}</code></pre>`)
}
// Create trust line to issuer ----------------------------------------------
const trust_tx = {
TransactionType: 'TrustSet',
Account: wallet.address,
LimitAmount: {
currency: currency_code,
issuer: issuer.address,
value: '10000000000', // Large limit, arbitrarily chosen
},
}
add_memo(event, trust_tx)
const trust_result = await api.submitAndWait(trust_tx, { autofill: true, wallet: wallet })
if (trust_result.result.meta.TransactionResult == 'tesSUCCESS') {
show_log(block, `<p><a href="${EXPLORER}/transactions/${trust_result.result.hash}">✅ Trust line created</a></p>`)
} else {
show_error(block, `Error sending transaction: <pre><code>${pretty_print(trust_result)}</code></pre>`)
}
// Issue tokens -------------------------------------------------------------
const issue_tx = {
TransactionType: 'Payment',
Account: issuer.address,
Amount: {
currency: currency_code,
value: issue_quantity,
issuer: issuer.address,
},
Destination: wallet.address,
}
add_memo(event, issue_tx)
const issue_result = await api.submitAndWait(issue_tx, { autofill: true, wallet: issuer })
if (issue_result.result.meta.TransactionResult == 'tesSUCCESS') {
show_log(block, `<p><a href="${EXPLORER}/transactions/${issue_result.result.hash}">✅ Tokens issued</a></p>`)
$('#get-foo').data('foo-acquired', true).prop('disabled', true).addClass('disabled').addClass('done')
} else {
show_error(block, `Error sending transaction: <pre><code>${pretty_print(issue_result)}</code></pre>`)
}
block.find('.loader').hide()
if ($('#get-foo').data('foo-acquired') && $('#buy-tst').data('tst-acquired')) {
complete_step('Acquire tokens')
}
})
$('#buy-tst').click(async (event) => {
const block = $(event.target).closest('.interactive-block')
const wallet = get_wallet(event)
if (!wallet) {
return
}
block.find('.loader').show()
const tx_json = {
TransactionType: 'OfferCreate',
Account: wallet.address,
TakerPays: {
currency: 'TST',
issuer: 'rP9jPyP5kyvFRb6ZiRghAGw5u8SGAmU4bd',
value: '25',
},
TakerGets: xrpl.xrpToDrops(25 * 10 * 1.16),
}
add_memo(event, tx_json)
const offer_result = await api.submitAndWait(tx_json, { autofill: true, wallet: wallet })
if (offer_result.result.meta.TransactionResult == 'tesSUCCESS') {
show_log(block, `<p><a href="${EXPLORER}/transactions/${offer_result.result.hash}">✅ TST offer placed</a></p>`)
const balance_changes = xrpl.getBalanceChanges(offer_result.result.meta)
for (const bc of balance_changes) {
if (bc.account != wallet.address) {
continue
}
for (const bal of bc.balances) {
if (bal.currency == 'TST') {
show_log(block, `<p>Got <strong>${bal.value}</strong> ${bal.currency}.${bal.issuer}.</p>`)
break
}
}
break
}
$('#buy-tst').data('tst-acquired', true).prop('disabled', true).addClass('disabled').addClass('done')
} else {
show_error(block, `<p>Transaction failed:</p><pre><code>${pretty_print(offer_result)}</code></pre>`)
}
block.find('.loader').hide()
if ($('#get-foo').data('foo-acquired') && $('#buy-tst').data('tst-acquired')) {
complete_step('Acquire tokens')
}
})
$('#check-for-amm').click(async (event) => {
const block = $(event.target).closest('.interactive-block')
const foo_issuer_address = $('#issuer-address').text()
block.find('.output-area').html('')
block.find('.loader').show()
try {
const amm_info = await api.request({
command: 'amm_info',
asset: {
currency: 'TST',
issuer: 'rP9jPyP5kyvFRb6ZiRghAGw5u8SGAmU4bd',
},
asset2: {
currency: 'FOO',
issuer: foo_issuer_address,
},
ledger_index: 'validated',
})
show_log(block, `<pre><code>${pretty_print}amm_info</code></pre>`)
} catch (err) {
if (err.data.error === 'actNotFound') {
show_log(
block,
`<p>✅ No AMM exists yet for the pair
FOO.${foo_issuer_address} /
TST.rP9jPyP5kyvFRb6ZiRghAGw5u8SGAmU4bd.`,
)
complete_step('Check for AMM')
} else {
show_error(block, err)
}
}
block.find('.loader').hide()
})
$('#look-up-ammcreate-cost').click(async (event) => {
const block = $(event.target).closest('.interactive-block')
block.find('.loader').show()
let amm_fee_drops = '5000000'
try {
const ss = await api.request({ command: 'server_state' })
amm_fee_drops = ss.result.state.validated_ledger.reserve_inc.toString()
show_log(
block,
`<p>Current AMMCreate transaction cost: ${xrpl.dropsToXrp(amm_fee_drops)} XRP (<span id="ammcreate-cost-drops">${amm_fee_drops}</span> drops)</p>`,
)
complete_step('Look up AMMCreate cost')
} catch (err) {
show_error(block, `Error looking up AMMCreate tx cost: ${err}`)
}
block.find('.loader').hide()
})
$('#create-amm').click(async (event) => {
const block = $(event.target).closest('.interactive-block')
const wallet = get_wallet(event)
if (!wallet) {
return
}
amm_fee_drops = $('#ammcreate-cost-drops').text()
if (!amm_fee_drops) {
return
}
block.find('.output-area').html('')
block.find('.loader').show()
const asset_amount = $('#asset-amount').val()
const asset2_amount = $('#asset2-amount').val()
const asset2_issuer_address = $('#issuer-address').text()
const trading_fee = Math.floor($('#trading-fee').val() * 1000) // Convert from %
const ammcreate_tx = {
TransactionType: 'AMMCreate',
Account: wallet.address,
Amount: {
currency: 'TST',
issuer: 'rP9jPyP5kyvFRb6ZiRghAGw5u8SGAmU4bd',
value: asset_amount,
},
Amount2: {
currency: 'FOO',
issuer: asset2_issuer_address,
value: asset2_amount,
},
TradingFee: 500, // 0.5%
Fee: amm_fee_drops,
}
add_memo(event, ammcreate_tx)
const ammcreate_result = await api.submitAndWait(ammcreate_tx, { autofill: true, wallet: wallet, fail_hard: true })
if (ammcreate_result.result.meta.TransactionResult == 'tesSUCCESS') {
show_log(
block,
`<p><a href="${EXPLORER}/transactions/${ammcreate_result.result.hash}">AMM created</a>:</p>
<pre><code>${pretty_print(ammcreate_result)}</code></pre>`,
)
complete_step('Create AMM')
} else {
console.error(ammcreate_result)
show_error(block, `Error sending transaction: ${ammcreate_result.result.meta.TransactionResult}`)
}
block.find('.loader').hide()
})
$('#check-amm-info').click(async (event) => {
const block = $(event.target).closest('.interactive-block')
const foo_issuer_address = $('#issuer-address').text()
block.find('.output-area').html('')
block.find('.loader').show()
try {
const amm_info = await api.request({
command: 'amm_info',
asset: {
currency: 'TST',
issuer: 'rP9jPyP5kyvFRb6ZiRghAGw5u8SGAmU4bd',
},
asset2: {
currency: 'FOO',
issuer: foo_issuer_address,
},
ledger_index: 'validated',
})
show_log(block, `<p><strong>AMM Info:</strong><pre><code>${pretty_print(amm_info)}</code></pre>`)
const lp_token = amm_info.result.amm.lp_token
show_log(
block,
`<p>The AMM account <strong>${lp_token.issuer}</strong> has <strong>${lp_token.value}</strong> total
LP tokens outstanding, and uses the currency code <code>${lp_token.currency}</code>.</p>`,
)
const amount = amm_info.result.amm.amount
const amount2 = amm_info.result.amm.amount2
show_log(
block,
`<p>In its pool, the AMM holds <strong>${amount.value} ${amount.currency}.${amount.issuer}</strong>
and <strong>${amount2.value} ${amount2.currency}.${amount2.issuer}</strong></p>`,
)
complete_step('Check AMM info')
} catch (err) {
show_error(block, err)
}
block.find('.loader').hide()
})
$('#check-trust-lines').click(async (event) => {
const block = $(event.target).closest('.interactive-block')
const address = get_address()
if (!address) {
return
}
block.find('.output-area').html('')
block.find('.loader').show()
try {
const account_lines = await api.request({
command: 'account_lines',
account: address,
ledger_index: 'validated',
})
show_log(block, `<p><strong>Trust lines:</strong><pre><code>${pretty_print(account_lines)}</code></pre>`)
complete_step('Check trust lines')
} catch (err) {
show_error(block, err)
}
block.find('.loader').hide()
})
})