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chore(web): Add debug logging to measure homepage load performance #525

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Merged
brendan-kellam merged 3 commits into from
Sep 19, 2025
Merged

chore(web): Add debug logging to measure homepage load performance #525

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127830b
add performance logging to homepage
brendan-kellam Sep 19, 2025
d74cdd0
fix build
brendan-kellam Sep 19, 2025
2e45636
Merge branch 'main' into bkellam/instrument_homepage
brendan-kellam Sep 19, 2025
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33 changes: 22 additions & 11 deletions packages/web/src/app/[domain]/page.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ import { getRepos, getSearchContexts } from "@/actions";
import { Footer } from "@/app/components/footer";
import { getOrgFromDomain } from "@/data/org";
import { getConfiguredLanguageModelsInfo, getUserChatHistory } from "@/features/chat/actions";
import { isServiceError } from "@/lib/utils";
import { isServiceError, measure } from "@/lib/utils";
import { Homepage } from "./components/homepage";
import { NavigationMenu } from "./components/navigationMenu";
import { PageNotFound } from "./components/pageNotFound";
Expand All @@ -14,25 +14,36 @@ import { AGENTIC_SEARCH_TUTORIAL_DISMISSED_COOKIE_NAME, SEARCH_MODE_COOKIE_NAME
import { env } from "@/env.mjs";
import { loadJsonFile } from "@sourcebot/shared";
import { DemoExamples, demoExamplesSchema } from "@/types";
import { createLogger } from "@sourcebot/logger";

const logger = createLogger('web-homepage');

export default async function Home(props: { params: Promise<{ domain: string }> }) {
logger.debug('Starting homepage load...');
const { data: HomePage, durationMs } = await measure(() => HomeInternal(props), 'HomeInternal', /* outputLog = */ false);
logger.debug(`Homepage load completed in ${durationMs}ms.`);

return HomePage;
}

const HomeInternal = async (props: { params: Promise<{ domain: string }> }) => {
const params = await props.params;

const {
domain
} = params;

const org = await getOrgFromDomain(domain);

const org = (await measure(() => getOrgFromDomain(domain), 'getOrgFromDomain')).data;
if (!org) {
return <PageNotFound />
}

const session = await auth();

const models = await getConfiguredLanguageModelsInfo();
const repos = await getRepos();
const searchContexts = await getSearchContexts(domain);
const chatHistory = session ? await getUserChatHistory(domain) : [];
const session = (await measure(() => auth(), 'auth')).data;
const models = (await measure(() => getConfiguredLanguageModelsInfo(), 'getConfiguredLanguageModelsInfo')).data;
const repos = (await measure(() => getRepos(), 'getRepos')).data;
const searchContexts = (await measure(() => getSearchContexts(domain), 'getSearchContexts')).data;
const chatHistory = session ? (await measure(() => getUserChatHistory(domain), 'getUserChatHistory')).data : [];

if (isServiceError(repos)) {
throw new ServiceErrorException(repos);
Expand All @@ -50,7 +61,7 @@ export default async function Home(props: { params: Promise<{ domain: string }>

// Read search mode from cookie, defaulting to agentic if not set
// (assuming a language model is configured).
const cookieStore = await cookies();
const cookieStore = (await measure(() => cookies(), 'cookies')).data;
const searchModeCookie = cookieStore.get(SEARCH_MODE_COOKIE_NAME);
const initialSearchMode = (
searchModeCookie?.value === "agentic" ||
Expand All @@ -61,7 +72,7 @@ export default async function Home(props: { params: Promise<{ domain: string }>

const demoExamples = env.SOURCEBOT_DEMO_EXAMPLES_PATH ? await (async () => {
try {
return await loadJsonFile<DemoExamples>(env.SOURCEBOT_DEMO_EXAMPLES_PATH!, demoExamplesSchema);
return (await measure(() => loadJsonFile<DemoExamples>(env.SOURCEBOT_DEMO_EXAMPLES_PATH!, demoExamplesSchema), 'loadExamplesJsonFile')).data;
} catch (error) {
console.error('Failed to load demo examples:', error);
return undefined;
Expand All @@ -87,4 +98,4 @@ export default async function Home(props: { params: Promise<{ domain: string }>
<Footer />
</div>
)
}
}