fix: allow PUT tenant to clear database_pool_url and database_pool_mode

src/http/routes/admin/tenants.ts

@@ -605,8 +605,8 @@ export default async function routes(fastify: FastifyInstance) {
         tenantInfo.feature_s3_protocol = features?.s3Protocol?.enabled
       }
 
-      if (databasePoolUrl) {
-        tenantInfo.database_pool_url = encrypt(databasePoolUrl)
+      if (databasePoolUrl !== undefined) {
+        tenantInfo.database_pool_url = databasePoolUrl === null ? null : encrypt(databasePoolUrl)
       }
 
       if (maxConnections) {

src/test/admin-tenants.test.ts

@@ -2,6 +2,29 @@
 import * as migrations from '@internal/database/migrations'
 import { adminApp } from './common'
 
+const adminHeaders = {
+  apikey: process.env.ADMIN_API_KEYS!,
+  'content-type': 'application/json',
+}
+
+const baseTenantBody = {
+  anonKey: 'anon',
+  databaseUrl: 'postgresql://postgres:postgres@127.0.0.1:5433/postgres',
+  jwtSecret: 'secret',
+  serviceKey: 'service',
+  jwks: null,
+  fileSizeLimit: 1024,
+}
+
+beforeAll(async () => {
+  await migrations.runMultitenantMigrations()
+})
+
+afterAll(async () => {
+  await adminApp.close()
+  await multitenantKnex.destroy()
+})
+
 describe('admin tenant delete route', () => {
   beforeAll(async () => {
     await migrations.runMultitenantMigrations()
@@ -16,14 +39,57 @@
     const response = await adminApp.inject({
       method: 'DELETE',
       url: '/tenants/abc',
-      headers: {
-        apikey: process.env.ADMIN_API_KEYS!,
-        'content-type': 'application/json',
-      },
+      headers: adminHeaders,
       payload: '',
     })
 
     expect(response.statusCode).toBe(204)
     expect(response.body).toBe('')
   })
 })
+
+describe('admin tenant put route nullable pool fields', () => {
+  const tenantId = 'put-nullable-pool'
+
+  beforeAll(async () => {
+    await multitenantKnex('tenants').where('id', tenantId).delete()
+  })
+
+  afterAll(async () => {
+    await multitenantKnex('tenants').where('id', tenantId).delete()
+  })
+
+  it('clears database_pool_url and database_pool_mode when put with null', async () => {
+    const initial = await adminApp.inject({
+      method: 'PUT',
+      url: `/tenants/${tenantId}`,
+      headers: adminHeaders,
+      payload: JSON.stringify({
+        ...baseTenantBody,
+        databasePoolUrl: 'postgresql://postgres:postgres@127.0.0.1:6454/postgres',
+        databasePoolMode: 'transaction',
+      }),
+    })
+    expect(initial.statusCode).toBe(204)
+
+    const seeded = await multitenantKnex('tenants').first().where('id', tenantId)
+    expect(seeded?.database_pool_url).toBeTruthy()
+    expect(seeded?.database_pool_mode).toBe('transaction')
+
+    const cleared = await adminApp.inject({
+      method: 'PUT',
+      url: `/tenants/${tenantId}`,
+      headers: adminHeaders,
+      payload: JSON.stringify({
+        ...baseTenantBody,
+        databasePoolUrl: null,
+        databasePoolMode: null,
+      }),
+    })
+    expect(cleared.statusCode).toBe(204)
+
+    const after = await multitenantKnex('tenants').first().where('id', tenantId)
+    expect(after?.database_pool_url).toBeNull()
+    expect(after?.database_pool_mode).toBeNull()
+  })
+})