RanchiMall/exchangemarket-usd
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Conversion rates are fixed at time of request

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- Fix the conversion rate when request is made.
- FROM_FIXED_VALUES, FROM_MIN_VALUE, FROM_MAX_VALUE constants use currency values instead of coin value (to keep uniformity)
This commit is contained in:
sairajzero 2023-03-24 20:40:31 +05:30
parent 93933cc5c1
commit 5d93259098
2 changed files with 51 additions and 50 deletions
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12
src/background.js
View File

@ -2,7 +2,7 @@
const keys = require('./keys');
const blockchain = require('./blockchain');
const conversion_rates = require('./services/conversion').getRate;
//const conversion_rates = require('./services/conversion').getRate;
/*
const bond_util = require('./services/bonds').util;
const fund_util = require('./services/bobs-fund').util;
@ -230,15 +230,13 @@ function verifyConvert() {
txQueries.push([to_refund_sql, [pCode.ASSET_TYPE_COIN, "BTC", pCode.STATUS_PENDING, req_timeout, pCode.CONVERT_MODE_PUT]]);
txQueries.push(["UPDATE DirectConvert SET r_status=? WHERE r_status=? AND locktime<?", [pCode.STATUS_REJECTED, pCode.STATUS_PENDING, req_timeout]]);
DB.transaction(txQueries).then(result => {
DB.query("SELECT id, floID, mode, in_txid, amount, quantity FROM DirectConvert WHERE r_status=? AND coin=?", [pCode.STATUS_PENDING, "BTC"]).then(results => {
DB.query("SELECT id, floID, mode, in_txid, amount, quantity, rate FROM DirectConvert WHERE r_status=? AND coin=?", [pCode.STATUS_PENDING, "BTC"]).then(results => {
results.forEach(r => {
if (r.mode == pCode.CONVERT_MODE_GET) {
verifyTx.token(r.floID, r.in_txid, keys.sink_groups.CONVERT, true).then(({ amount }) => {
if (r.amount !== amount)
throw ([true, "Transaction amount mismatched in blockchain"]);
conversion_rates.BTC_USD().then(rate => {
blockchain.convertToCoin.init(r.floID, "BTC", amount, rate, r.id)
}).catch(error => console.error(error))
blockchain.convertToCoin.init(r.floID, "BTC", r.amount, r.rate, r.id)
}).catch(error => {
console.error(error);
if (error[0])
@ -249,9 +247,7 @@ function verifyConvert() {
verifyTx.BTC(r.floID, r.in_txid, keys.sink_groups.CONVERT).then(quantity => {
if (r.quantity !== quantity)
throw ([true, "Transaction quantity mismatched in blockchain"]);
conversion_rates.BTC_USD().then(rate => {
blockchain.convertFromCoin.init(r.floID, quantity, rate, r.id)
}).catch(error => console.error(error))
blockchain.convertFromCoin.init(r.floID, r.quantity, r.rate, r.id)
}).catch(error => {
console.error(error);
if (error[0])

89
src/services/conversion.js
View File

@ -116,7 +116,7 @@ function getConvertValues() {
}
} else result[pCode.CONVERT_MODE_GET] = null;
if (avail.cash > 0) {
let cash_availability = global.toStandardDecimal(avail.cash / avail.rate); //convert to coin value
let cash_availability = global.toStandardDecimal(avail.cash); //availability in currency value
if (Array.isArray(FROM_FIXED_VALUES) && FROM_FIXED_VALUES.length)
result[pCode.CONVERT_MODE_PUT] = FROM_FIXED_VALUES.filter(a => a < cash_availability);
else if (!FROM_MIN_VALUE || FROM_MIN_VALUE <= cash_availability) {
@ -135,26 +135,28 @@ function convertToCoin(floID, txid, coin, amount) {
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid coin (${coin})`));
else if (typeof amount !== "number" || amount <= 0)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid amount (${amount})`));
else if (Array.isArray(TO_FIXED_VALUES) && TO_FIXED_VALUES.length) {
if (!TO_FIXED_VALUES.includes(amount))
BTC_USD().then(rate => {
if (Array.isArray(TO_FIXED_VALUES) && TO_FIXED_VALUES.length) {
if (!TO_FIXED_VALUES.includes(amount))
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid amount (${amount})`));
} else if (TO_MIN_VALUE && TO_MIN_VALUE > amount || TO_MAX_VALUE && TO_MAX_VALUE < amount)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid amount (${amount})`));
} else if (TO_MIN_VALUE && TO_MIN_VALUE > amount || TO_MAX_VALUE && TO_MAX_VALUE < amount)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid amount (${amount})`));
DB.query("SELECT r_status FROM DirectConvert WHERE in_txid=? AND floID=? AND mode=?", [txid, floID, pCode.CONVERT_MODE_GET]).then(result => {
if (result.length)
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already in process"));
checkPoolBalance(coin, amount, pCode.CONVERT_MODE_GET).then(result => {
DB.query("INSERT INTO DirectConvert(floID, in_txid, mode, coin, amount, r_status) VALUES (?)", [[floID, txid, pCode.CONVERT_MODE_GET, coin, amount, pCode.STATUS_PENDING]])
.then(result => resolve("Conversion request in process"))
.catch(error => reject(error));
}).catch(error => {
if (error instanceof INVALID && error.ecode === eCode.INSUFFICIENT_FUND)
DB.query("INSERT INTO DirectConvert(floID, in_txid, mode, coin, amount, r_status) VALUES (?)", [[floID, txid, pCode.CONVERT_MODE_GET, coin, amount, pCode.STATUS_REJECTED]]).then(result => {
DB.query("INSERT INTO RefundConvert(floID, in_txid, asset_type, asset, r_status) VALUES (?)", [[floID, txid, pCode.ASSET_TYPE_TOKEN, floGlobals.currency, pCode.STATUS_PENDING]])
.then(_ => null).catch(error => console.error(error));
}).catch(error => console.error(error))
reject(error);
})
DB.query("SELECT r_status FROM DirectConvert WHERE in_txid=? AND floID=? AND mode=?", [txid, floID, pCode.CONVERT_MODE_GET]).then(result => {
if (result.length)
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already in process"));
checkPoolBalance(coin, amount, pCode.CONVERT_MODE_GET).then(result => {
DB.query("INSERT INTO DirectConvert(floID, in_txid, mode, coin, amount, rate, r_status) VALUES (?)", [[floID, txid, pCode.CONVERT_MODE_GET, coin, amount, rate, pCode.STATUS_PENDING]])
.then(result => resolve("Conversion request in process"))
.catch(error => reject(error));
}).catch(error => {
if (error instanceof INVALID && error.ecode === eCode.INSUFFICIENT_FUND)
DB.query("INSERT INTO DirectConvert(floID, in_txid, mode, coin, amount, r_status) VALUES (?)", [[floID, txid, pCode.CONVERT_MODE_GET, coin, amount, pCode.STATUS_REJECTED]]).then(result => {
DB.query("INSERT INTO RefundConvert(floID, in_txid, asset_type, asset, r_status) VALUES (?)", [[floID, txid, pCode.ASSET_TYPE_TOKEN, floGlobals.currency, pCode.STATUS_PENDING]])
.then(_ => null).catch(error => console.error(error));
}).catch(error => console.error(error))
reject(error);
})
}).catch(error => reject(error))
}).catch(error => reject(error))
});
}
@ -165,29 +167,32 @@ function convertFromCoin(floID, txid, tx_hex, coin, quantity) {
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid coin (${coin})`));
else if (typeof quantity !== "number" || quantity <= 0)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid quantity (${quantity})`));
else if (Array.isArray(FROM_FIXED_VALUES) && FROM_FIXED_VALUES.length) {
if (!FROM_FIXED_VALUES.includes(quantity))
BTC_USD().then(rate => {
let currency_amount = global.toStandardDecimal(quantity * rate);
if (Array.isArray(FROM_FIXED_VALUES) && FROM_FIXED_VALUES.length) {
if (!FROM_FIXED_VALUES.includes(currency_amount))
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid quantity (${quantity})`));
} else if (FROM_MIN_VALUE && FROM_MIN_VALUE > currency_amount || FROM_MAX_VALUE && FROM_MAX_VALUE < currency_amount)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid quantity (${quantity})`));
} else if (FROM_MIN_VALUE && FROM_MIN_VALUE > quantity || FROM_MAX_VALUE && FROM_MAX_VALUE < quantity)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid quantity (${quantity})`));
else if (btcOperator.transactionID(tx_hex) !== txid)
return reject(INVALID(eCode.INVALID_TX_ID, `txid ${txid} doesnt match the tx-hex`));
DB.query("SELECT r_status FROM DirectConvert WHERE in_txid=? AND floID=? AND mode=?", [txid, floID, pCode.CONVERT_MODE_PUT]).then(result => {
if (result.length)
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already in process"));
checkPoolBalance(coin, quantity, pCode.CONVERT_MODE_PUT).then(result => {
btcOperator.broadcastTx(tx_hex).then(b_txid => {
if (b_txid !== txid)
console.warn("broadcast TX-ID is not same as calculated TX-ID");
DB.query("INSERT INTO DirectConvert(floID, in_txid, mode, coin, quantity, r_status) VALUES (?)", [[floID, b_txid, pCode.CONVERT_MODE_PUT, coin, quantity, pCode.STATUS_PENDING]])
.then(result => resolve("Conversion request in process"))
.catch(error => reject(error));
}).catch(error => {
if (error === null)
reject(INVALID(eCode.INVALID_TX_ID, `Invalid transaction hex`));
else
reject(error);
})
else if (btcOperator.transactionID(tx_hex) !== txid)
return reject(INVALID(eCode.INVALID_TX_ID, `txid ${txid} doesnt match the tx-hex`));
DB.query("SELECT r_status FROM DirectConvert WHERE in_txid=? AND floID=? AND mode=?", [txid, floID, pCode.CONVERT_MODE_PUT]).then(result => {
if (result.length)
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already in process"));
checkPoolBalance(coin, quantity, pCode.CONVERT_MODE_PUT).then(result => {
btcOperator.broadcastTx(tx_hex).then(b_txid => {
if (b_txid !== txid)
console.warn("broadcast TX-ID is not same as calculated TX-ID");
DB.query("INSERT INTO DirectConvert(floID, in_txid, mode, coin, quantity, rate, r_status) VALUES (?)", [[floID, b_txid, pCode.CONVERT_MODE_PUT, coin, quantity, rate, pCode.STATUS_PENDING]])
.then(result => resolve("Conversion request in process"))
.catch(error => reject(error));
}).catch(error => {
if (error === null)
reject(INVALID(eCode.INVALID_TX_ID, `Invalid transaction hex`));
else
reject(error);
})
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
})