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const axios = require("axios");
const fs = require("fs");
let binance = require("./binance")();
let fetchRates;
(fetchRates = async () => {
let date, fx;
try {
({ date, fx } = JSON.parse(fs.readFileSync("fx")));
} catch(e) {
l.warn("Failed to read fx file");
}
let today = JSON.stringify(new Date())
.replace(/T.*/, "")
.replace(/"/, "");
if (date !== today) {
try {
let {
data: { rates: fx }
} = await axios.get("https://api.exchangerate.host/latest?base=USD");
fs.writeFileSync("fx", JSON.stringify({ date, fx }));
} catch (e) {
try {
let {
data: { rates: fx }
} = await axios.get(
`http://data.fixer.io/api/latest?access_key=${config.fixer}`
);
let USD = fx["USD"];
Object.keys(fx).map(k => {
fx[k] = parseFloat((fx[k] / fx["USD"]).toFixed(6));
});
fs.writeFileSync("fx", JSON.stringify({ date, fx }));
} catch (e) {
l.error("error fetching rates", e.message);
}
}
}
app.set("fx", fx);
setTimeout(fetchRates, 7200000);
})();
app.get(
"/rates",
ah(async (req, res, next) => {
res.send(app.get("rates"));
})
);
setInterval(() => {
broadcast("rate", app.get("last"));
}, 1000);
setInterval(() => {
binance.terminate();
binance = require("./binance")();
}, 360000);
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