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import app from "app";
import got from "got";
import config from "config";
import fs from "fs";
import binance from "./binance";
import { broadcast } from "./sockets";
import store from "./store";
import { err, warn } from "lib/logging";
let b = binance();
setInterval(() => {
b.terminate();
b = binance();
}, 360000);
let fetchRates = async () => {
let date, fx;
try {
({ date, fx } = JSON.parse(fs.readFileSync("data/fx")));
} catch (e) {
warn("Failed to read fx file");
}
let today = JSON.stringify(new Date())
.replace(/T.*/, "")
.replace(/"/, "");
if (date !== today) {
try {
let { rates: fx } = await got(
`https://api.exchangerate.host/latest?base=USD&v={(new Date()).toISOString().split('T')[0]}`
).json();
fs.writeFileSync("data/fx", JSON.stringify({ date, fx }));
} catch (e) {
try {
let { rates: fx } = await got(
`http://data.fixer.io/api/latest?access_key=${config.fixer}`
).json();
let USD = fx["USD"];
Object.keys(fx).map(k => {
fx[k] = parseFloat((fx[k] / fx["USD"]).toFixed(6));
});
fs.writeFileSync("data/fx", JSON.stringify({ date, fx }));
} catch (e) {
err("error fetching rates", e.message);
}
}
}
store.fx = fx;
setTimeout(fetchRates, 7200000);
};
fetchRates();
app.get("/rate", async (req, res, next) => {
res.send(store.last);
});
app.get("/rates", async (req, res, next) => {
res.send(store.rates);
});
setInterval(() => {
broadcast("rate", store.last);
}, 1000);
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