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Fetch historical data based on timestamp and currency

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This commit is contained in:
natsoni
2024-03-09 16:32:21 +01:00
parent 23076172e4
commit ccf1121f19
7 changed files with 100 additions and 29 deletions
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31
backend/src/repositories/PricesRepository.ts
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@@ -329,14 +329,29 @@ class PricesRepository {
throw Error(`Cannot get single historical price from the database`);
}
let pricesUsedForExchangeRates; // If we don't have a fx API key, we need to use the latest prices to compute the exchange rates
if (!config.MEMPOOL.CURRENCY_API_KEY) {
const [latestPrices] = await DB.query(`
SELECT ${ApiPriceFields}
FROM prices
ORDER BY time DESC
LIMIT 1
`);
if (!Array.isArray(latestPrices)) {
throw Error(`Cannot get single historical price from the database`);
}
pricesUsedForExchangeRates = latestPrices[0] as ApiPrice;
} else {
pricesUsedForExchangeRates = rates[0] as ApiPrice;
}
// Compute fiat exchange rates
let latestPrice = rates[0] as ApiPrice;
let latestPrice = pricesUsedForExchangeRates;
if (!latestPrice || latestPrice.USD === -1) {
latestPrice = priceUpdater.getEmptyPricesObj();
}
const computeFx = (usd: number, other: number): number =>
Math.round(Math.max(other, 0) / Math.max(usd, 1) * 100) / 100;
const computeFx = (usd: number, other: number): number => usd <= 0.05 ? 0 : Math.round(Math.max(other, 0) / usd * 100) / 100;
const exchangeRates: ExchangeRates = config.MEMPOOL.CURRENCY_API_KEY ?
{
@@ -388,7 +403,8 @@ class PricesRepository {
const filteredRates = rates.map((rate: any) => {
return {
time: rate.time,
[currency]: rate[currency]
[currency]: rate[currency],
['USD']: rate['USD']
};
});
return {
@@ -424,8 +440,8 @@ class PricesRepository {
latestPrice = priceUpdater.getEmptyPricesObj();
}
const computeFx = (usd: number, other: number): number =>
Math.round(Math.max(other, 0) / Math.max(usd, 1) * 100) / 100;
const computeFx = (usd: number, other: number): number =>
usd <= 0 ? 0 : Math.round(Math.max(other, 0) / usd * 100) / 100;
const exchangeRates: ExchangeRates = config.MEMPOOL.CURRENCY_API_KEY ?
{
@@ -477,7 +493,8 @@ class PricesRepository {
const filteredRates = rates.map((rate: any) => {
return {
time: rate.time,
[currency]: rate[currency]
[currency]: rate[currency],
['USD']: rate['USD']
};
});
return {