FIX: add configurable max connection limit per tenant if needed

Author: sru-thy

env.sample

@@ -3,6 +3,7 @@ POSTGRES_PORT=5432
 POSTGRES_USER=postgres
 POSTGRES_PASSWORD=postgres
 POSTGRES_DB=authentication-service
+POSTGRES_TENANT_MAX_CONNECTION_LIMIT=10
 REDIS_HOST=localhost
 REDIS_PORT=6379
 REDIS_CACHE_TTL=3600

src/util/database.connection.ts

@@ -41,7 +41,9 @@ export async function getConnectionForTenant(
     synchronize: false,
     logging: ['error'],
     namingStrategy: new SnakeNamingStrategy(),
-    extra: { max: process.env.POSTGRES_TENANT_MAX_CONNECTION_LIMIT },
+    ...(process.env.POSTGRES_TENANT_MAX_CONNECTION_LIMIT
+      ? { extra: { max: process.env.POSTGRES_TENANT_MAX_CONNECTION_LIMIT } }
+      : {}),
   }).initialize();
 
   await switchToTenant(tenantId, newConnection);