From d55f51a69b385ccdecb6272653c9d4f09ff8fc31 Mon Sep 17 00:00:00 2001
From: syuilo <4439005+syuilo@users.noreply.github.com>
Date: Sun, 30 Nov 2025 14:04:41 +0900
Subject: perf(backend): lazy load sentry

---
 packages/backend/src/server/api/ApiCallService.ts | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

(limited to 'packages/backend/src/server/api')

diff --git a/packages/backend/src/server/api/ApiCallService.ts b/packages/backend/src/server/api/ApiCallService.ts
index 7a4af407a3..27c79ab438 100644
--- a/packages/backend/src/server/api/ApiCallService.ts
+++ b/packages/backend/src/server/api/ApiCallService.ts
@@ -7,7 +7,6 @@ import { randomUUID } from 'node:crypto';
 import * as fs from 'node:fs';
 import * as stream from 'node:stream/promises';
 import { Inject, Injectable } from '@nestjs/common';
-import * as Sentry from '@sentry/node';
 import { DI } from '@/di-symbols.js';
 import { getIpHash } from '@/misc/get-ip-hash.js';
 import type { MiLocalUser, MiUser } from '@/models/User.js';
@@ -37,6 +36,7 @@ export class ApiCallService implements OnApplicationShutdown {
 	private logger: Logger;
 	private userIpHistories: Map<MiUser['id'], Set<string>>;
 	private userIpHistoriesClearIntervalId: NodeJS.Timeout;
+	private Sentry: typeof import('@sentry/node') | null = null;
 
 	constructor(
 		@Inject(DI.meta)
@@ -59,6 +59,12 @@ export class ApiCallService implements OnApplicationShutdown {
 		this.userIpHistoriesClearIntervalId = setInterval(() => {
 			this.userIpHistories.clear();
 		}, 1000 * 60 * 60);
+
+		if (this.config.sentryForBackend) {
+			import('@sentry/node').then((Sentry) => {
+				this.Sentry = Sentry;
+			});
+		}
 	}
 
 	#sendApiError(reply: FastifyReply, err: ApiError): void {
@@ -120,8 +126,8 @@ export class ApiCallService implements OnApplicationShutdown {
 				},
 			});
 
-			if (this.config.sentryForBackend) {
-				Sentry.captureMessage(`Internal error occurred in ${ep.name}: ${err.message}`, {
+			if (this.Sentry != null) {
+				this.Sentry.captureMessage(`Internal error occurred in ${ep.name}: ${err.message}`, {
 					level: 'error',
 					user: {
 						id: userId,
@@ -432,8 +438,8 @@ export class ApiCallService implements OnApplicationShutdown {
 		}
 
 		// API invoking
-		if (this.config.sentryForBackend) {
-			return await Sentry.startSpan({
+		if (this.Sentry != null) {
+			return await this.Sentry.startSpan({
 				name: 'API: ' + ep.name,
 			}, () => ep.exec(data, user, token, file, request.ip, request.headers)
 				.catch((err: Error) => this.#onExecError(ep, data, err, user?.id)));
-- 
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