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proxy.js
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proxy.js
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import cache from "memory-cache";
import { httpProxy } from "utils/proxy/http";
import { formatApiCall } from "utils/proxy/api-helpers";
import getServiceWidget from "utils/config/service-helpers";
import createLogger from "utils/logger";
import widgets from "widgets/widgets";
const proxyName = "watchtowerProxyHandler";
const headerCacheKey = `${proxyName}__headers`;
const logger = createLogger(proxyName);
export default async function watchtowerProxyHandler(req, res) {
const { group, service, endpoint } = req.query;
if (!group || !service) {
logger.debug("Invalid or missing service '%s' or group '%s'", service, group);
return res.status(400).json({ error: "Invalid proxy service type" });
}
const widget = await getServiceWidget(group, service);
if (!widget) {
logger.debug("Invalid or missing widget for service '%s' in group '%s'", service, group);
return res.status(400).json({ error: "Invalid proxy service type" });
}
let headers = cache.get(headerCacheKey);
if (!headers) {
headers = {
"Authorization": `Bearer ${widget.key}`,
}
cache.put(headerCacheKey, headers);
}
const url = new URL(formatApiCall(widgets[widget.type].api, { endpoint, ...widget }));
const method = "GET"
const [status, contentType, data] = await httpProxy(url, {
method,
headers,
});
const cleanData = data.toString().split("\n").filter(s => s.startsWith("watchtower"))
const jsonRes={}
cleanData.map(e => e.split(" ")).forEach(strArray => {
const [key, value] = strArray
jsonRes[key] = value
})
if (status !== 200) {
logger.error("Error getting data from WatchTower: %d. Data: %s", status, data);
}
if (contentType) res.setHeader("Content-Type", contentType);
return res.status(status).send(jsonRes);
}