1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
import app from "$app";
import axios from "axios";
import config from "$config";
import fs from "fs";
import binance from "./binance";
import { broadcast } from "./sockets";
import store from "./store";
import { err, warn } from "$lib/logging";
let b = binance();
setInterval(() => {
b.terminate();
b = binance();
}, 360000);
let fetchRates;
(fetchRates = async () => {
let date, fx;
try {
({ date, fx } = JSON.parse(fs.readFileSync("fx")));
} catch (e) {
warn("Failed to read fx file");
}
let today = JSON.stringify(new Date())
.replace(/T.*/, "")
.replace(/"/, "");
if (date !== today) {
try {
let {
data: { rates: fx }
} = await axios.get(
`https://api.exchangerate.host/latest?base=USD&v={(new Date()).toISOString().split('T')[0]}`
);
fs.writeFileSync("fx", JSON.stringify({ date, fx }));
} catch (e) {
try {
let {
data: { rates: fx }
} = await axios.get(
`http://data.fixer.io/api/latest?access_key=${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) {
err("error fetching rates", e.message);
}
}
}
store.fx = fx;
setTimeout(fetchRates, 7200000);
})();
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);
|
