a771ab7259
Client-side posthog-js was using a random anonymous ID (reset every page load) while server-side posthog-node used a deterministic SHA256(hostname:username) hash. Bootstrap the client with the server's anonymous ID so both sides share the same per-machine-per-user identity.
44 lines
1012 B
TypeScript
44 lines
1012 B
TypeScript
import { createHash } from "node:crypto";
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import os from "node:os";
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import { PostHog } from "posthog-node";
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const POSTHOG_KEY = process.env.NEXT_PUBLIC_POSTHOG_KEY || "";
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const POSTHOG_HOST = "https://us.i.posthog.com";
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let client: PostHog | null = null;
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export function getAnonymousId(): string {
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try {
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const raw = `${os.hostname()}:${os.userInfo().username}`;
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return createHash("sha256").update(raw).digest("hex").slice(0, 16);
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} catch {
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return "unknown";
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}
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}
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function ensureClient(): PostHog | null {
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if (!POSTHOG_KEY) return null;
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if (!client) {
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client = new PostHog(POSTHOG_KEY, {
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host: POSTHOG_HOST,
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flushAt: 10,
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flushInterval: 30_000,
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});
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}
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return client;
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}
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export function trackServer(event: string, properties?: Record<string, unknown>): void {
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const ph = ensureClient();
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if (!ph) return;
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ph.capture({
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distinctId: getAnonymousId(),
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event,
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properties: {
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...properties,
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$process_person_profile: false,
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},
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});
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}
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