SQL のログを出力 (#648)

# PRの概要

- SQL のログを server のコンソールに出せるようにした

Author: nakaterm

bun.lock

@@ -8,3 +8,6 @@ CORS_ALLOW_ORIGINS=http://localhost:3000,http://localhost:5173
 
 # Firebase
 FIREBASE_PROJECT_ID=project-id
+
+# Enable SQL Log (server/src/database/client.ts)
+SQL_LOG=true

server/.env.sample

@@ -26,6 +26,7 @@
     "firebase-admin": "^12.2.0",
     "sharp": "^0.33.5",
     "socket.io": "^4.7.5",
+    "sql-formatter": "^15.4.10",
     "zod": "^3.23.8"
   },
   "devDependencies": {

server/package.json

@@ -1,9 +1,36 @@
 import { PrismaClient } from "@prisma/client";
+import { format } from "sql-formatter";
 import "../load-env";
 
-export let prisma = new PrismaClient();
+const { SQL_LOG } = process.env;
 
-// not sure if this is necessary
-export function reload() {
-  prisma = new PrismaClient();
-}
+export const prisma = new PrismaClient(
+  SQL_LOG === "true"
+    ? {
+        log: [
+          {
+            emit: "event",
+            level: "query",
+          },
+          {
+            emit: "stdout",
+            level: "error",
+          },
+          {
+            emit: "stdout",
+            level: "info",
+          },
+          {
+            emit: "stdout",
+            level: "warn",
+          },
+        ],
+      }
+    : undefined,
+);
+
+prisma.$on("query", (e) => {
+  console.log(format(e.query, { language: "postgresql" }));
+  console.log(`Params: ${e.params}`);
+  console.log("\n");
+});