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pulsenode/lib/collectors/services/umami.ts
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import type { UmamiServiceWidget } from "@/lib/config/schema";
import type { ServiceStat } from "@/lib/types/service-result";
import { serviceBaseUrl } from "./base-url";
// Self-hosted Umami has no static API-key header (that's Cloud-only) - it needs
// a username/password login exchanged for a Bearer token. Cache the token per
// container and only re-login when a request comes back 401, since the docs
// don't document a fixed token lifetime to pre-emptively refresh against.
const tokenCache = new Map<string, string>();
async function login(widget: UmamiServiceWidget, base: string): Promise<string> {
const response = await fetch(`${base}/api/auth/login`, {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ username: widget.username, password: widget.password }),
signal: AbortSignal.timeout(5_000),
});
if (!response.ok) {
throw new Error(`Umami login returned ${response.status}`);
}
const body = (await response.json()) as { token: string };
tokenCache.set(widget.containerName, body.token);
return body.token;
}
export async function collectUmami(widget: UmamiServiceWidget): Promise<{ stats: ServiceStat[] }> {
const base = serviceBaseUrl(widget);
let token = tokenCache.get(widget.containerName) ?? (await login(widget, base));
let response = await fetch(`${base}/api/websites/${widget.websiteId}/active`, {
headers: { Authorization: `Bearer ${token}` },
signal: AbortSignal.timeout(5_000),
});
if (response.status === 401) {
token = await login(widget, base);
response = await fetch(`${base}/api/websites/${widget.websiteId}/active`, {
headers: { Authorization: `Bearer ${token}` },
signal: AbortSignal.timeout(5_000),
});
}
if (!response.ok) {
throw new Error(`Umami API returned ${response.status}`);
}
const body = (await response.json()) as { visitors: number };
return { stats: [{ label: "Active", value: String(body.visitors) }] };
}