I am trying to pull price data from the API for cryptowatch, when I go to the URL with my API key it works fine, but my program isn't successfully pulling it so I am getting my error of Could not set price feed for cryptowatch:" + cryptowatchMarketId
I'm pretty stuck on where to go from here.
// Set initial prices
const cryptowatchApiKey = process.env.CRYPTOWATCH_API_KEY || MM_CONFIG.cryptowatchApiKey;
const cryptowatchMarkets = await fetch("https://api.cryptowat.ch/markets?apikey=" + cryptowatchApiKey).then(r => r.json());
const cryptowatchMarketPrices = await fetch("https://api.cryptowat.ch/markets/prices?apikey=" + cryptowatchApiKey).then(r => r.json());
for (let i in cryptowatchMarketIds) {
const cryptowatchMarketId = cryptowatchMarketIds[i];
try {
const cryptowatchMarket = cryptowatchMarkets.result.find(row => row.id == cryptowatchMarketId);
const exchange = cryptowatchMarket.exchange;
const pair = cryptowatchMarket.pair;
const key = `market:${exchange}:${pair}`;
PRICE_FEEDS['cryptowatch:'+cryptowatchMarketIds[i]] = cryptowatchMarketPrices.result[key];
} catch (e) {
console.error("Could not set price feed for cryptowatch:" + cryptowatchMarketId);
}
}
const subscriptionMsg = {
"subscribe": {
"subscriptions": []
}
}
for (let i in cryptowatchMarketIds) {
const cryptowatchMarketId = cryptowatchMarketIds[i];
// first get initial price info
subscriptionMsg.subscribe.subscriptions.push({
"streamSubscription": {
"resource": `markets:${cryptowatchMarketId}:book:spread`
}
})
}
let cryptowatch_ws = new WebSocket("wss://stream.cryptowat.ch/connect?apikey=" + cryptowatchApiKey);
cryptowatch_ws.on('open', onopen);
cryptowatch_ws.on('message', onmessage);
cryptowatch_ws.on('close', onclose);
cryptowatch_ws.on('error', console.error);
function onopen() {
cryptowatch_ws.send(JSON.stringify(subscriptionMsg));
}
function onmessage (data) {
const msg = JSON.parse(data);
if (!msg.marketUpdate) return;
const marketId = "cryptowatch:" + msg.marketUpdate.market.marketId;
let ask = msg.marketUpdate.orderBookSpreadUpdate.ask.priceStr;
let bid = msg.marketUpdate.orderBookSpreadUpdate.bid.priceStr;
let price = ask / 2 + bid / 2;
PRICE_FEEDS[marketId] = price;
}
function onclose () {
setTimeout(cryptowatchWsSetup, 5000, cryptowatchMarketIds);
}
}