From f75fad7b7a7fd92cf3877594e8842c4ecce39f0f Mon Sep 17 00:00:00 2001
From: Lucas Coratger <73360179+coratgerl@users.noreply.github.com>
Date: Sat, 6 Dec 2025 09:23:18 +0100
Subject: [PATCH 1/7] feat: Add option to change log levels of username already
 exists message

---
 resources/buildConfigDefinitions.js |  2 ++
 spec/ParseUser.spec.js              | 53 +++++++++++++++++++++++++++++
 src/Config.js                       | 16 +++++++++
 src/Options/Definitions.js          | 15 ++++++++
 src/Options/docs.js                 |  6 ++++
 src/Options/index.js                | 10 ++++++
 src/middlewares.js                  | 13 ++++++-
 types/Options/index.d.ts            |  4 +++
 8 files changed, 118 insertions(+), 1 deletion(-)

diff --git a/resources/buildConfigDefinitions.js b/resources/buildConfigDefinitions.js
index 0b7dcdac3d..2733016fba 100644
--- a/resources/buildConfigDefinitions.js
+++ b/resources/buildConfigDefinitions.js
@@ -25,6 +25,7 @@ const nestedOptionTypes = [
   'SecurityOptions',
   'SchemaOptions',
   'LogLevels',
+  'LogEvents',
 ];
 
 /** The prefix of environment variables for nested options. */
@@ -39,6 +40,7 @@ const nestedOptionEnvPrefix = {
   LogClientEvent: 'PARSE_SERVER_DATABASE_LOG_CLIENT_EVENTS_',
   LogLevel: 'PARSE_SERVER_LOG_LEVEL_',
   LogLevels: 'PARSE_SERVER_LOG_LEVELS_',
+  LogEvents: 'PARSE_SERVER_LOG_EVENTS_',
   PagesCustomUrlsOptions: 'PARSE_SERVER_PAGES_CUSTOM_URL_',
   PagesOptions: 'PARSE_SERVER_PAGES_',
   PagesRoute: 'PARSE_SERVER_PAGES_ROUTE_',
diff --git a/spec/ParseUser.spec.js b/spec/ParseUser.spec.js
index 0380589057..a3743f75d8 100644
--- a/spec/ParseUser.spec.js
+++ b/spec/ParseUser.spec.js
@@ -81,6 +81,59 @@ describe('Parse.User testing', () => {
     }
   });
 
+  it('logs username taken with configured log level', async () => {
+    await reconfigureServer({ logEvents: { usernameAlreadyExists: 'warn' } });
+    const logger = require('../lib/logger').default;
+    loggerErrorSpy = spyOn(logger, 'error').and.callThrough();
+    const loggerWarnSpy = spyOn(logger, 'warn').and.callThrough();
+
+    const user = new Parse.User();
+    user.setUsername('dupUser');
+    user.setPassword('pass');
+    await user.signUp();
+
+    const user2 = new Parse.User();
+    user2.setUsername('dupUser');
+    user2.setPassword('pass2');
+
+    expect(loggerWarnSpy).not.toHaveBeenCalled();
+
+    try {
+      await user2.signUp();
+      fail('should have thrown');
+    } catch (e) {
+      expect(e.code).toBe(Parse.Error.USERNAME_TAKEN);
+    }
+
+    expect(loggerWarnSpy).toHaveBeenCalledTimes(1);
+    expect(loggerErrorSpy.calls.count()).toBe(0);
+  });
+
+  it('can silence username taken log event', async () => {
+    await reconfigureServer({ logEvents: { usernameAlreadyExists: 'silent' } });
+    const logger = require('../lib/logger').default;
+    loggerErrorSpy = spyOn(logger, 'error').and.callThrough();
+    const loggerWarnSpy = spyOn(logger, 'warn').and.callThrough();
+
+    const user = new Parse.User();
+    user.setUsername('dupUser');
+    user.setPassword('pass');
+    await user.signUp();
+
+    const user2 = new Parse.User();
+    user2.setUsername('dupUser');
+    user2.setPassword('pass2');
+    try {
+      await user2.signUp();
+      fail('should have thrown');
+    } catch (e) {
+      expect(e.code).toBe(Parse.Error.USERNAME_TAKEN);
+    }
+
+    expect(loggerWarnSpy).not.toHaveBeenCalled();
+    expect(loggerErrorSpy.calls.count()).toBe(0);
+  });
+
   it('user login with context', async () => {
     let hit = 0;
     const context = { foo: 'bar' };
diff --git a/src/Config.js b/src/Config.js
index 241edf9771..9e982a3b82 100644
--- a/src/Config.js
+++ b/src/Config.js
@@ -14,6 +14,7 @@ import {
   FileUploadOptions,
   IdempotencyOptions,
   LogLevels,
+  LogEvents,
   PagesOptions,
   ParseServerOptions,
   SchemaOptions,
@@ -128,6 +129,7 @@ export class Config {
     requestKeywordDenylist,
     allowExpiredAuthDataToken,
     logLevels,
+    logEvents,
     rateLimit,
     databaseOptions,
     extendSessionOnUse,
@@ -170,6 +172,7 @@ export class Config {
     this.validateRequestKeywordDenylist(requestKeywordDenylist);
     this.validateRateLimit(rateLimit);
     this.validateLogLevels(logLevels);
+    this.validateLogEvents(logEvents);
     this.validateDatabaseOptions(databaseOptions);
     this.validateCustomPages(customPages);
     this.validateAllowClientClassCreation(allowClientClassCreation);
@@ -641,6 +644,19 @@ export class Config {
     }
   }
 
+  static validateLogEvents(logEvents) {
+    for (const key of Object.keys(LogEvents)) {
+      if (logEvents[key]) {
+        // We validate that each configured event uses a valid log *level* (same list as logLevels).
+        if (validLogLevels.indexOf(logEvents[key]) === -1) {
+          throw `'${key}' must be one of ${JSON.stringify(validLogLevels)}`;
+        }
+      } else {
+        logEvents[key] = LogEvents[key].default;
+      }
+    }
+  }
+
   static validateDatabaseOptions(databaseOptions) {
     if (databaseOptions == undefined) {
       return;
diff --git a/src/Options/Definitions.js b/src/Options/Definitions.js
index 66c1d8bcea..0aa2962b95 100644
--- a/src/Options/Definitions.js
+++ b/src/Options/Definitions.js
@@ -352,6 +352,13 @@ module.exports.ParseServerOptions = {
     action: parsers.objectParser,
     type: 'LiveQueryServerOptions',
   },
+  logEvents: {
+    env: 'PARSE_SERVER_LOG_EVENTS',
+    help: '(Optional) Overrides the log levels used by specific log events.',
+    action: parsers.objectParser,
+    type: 'LogEvents',
+    default: {},
+  },
   loggerAdapter: {
     env: 'PARSE_SERVER_LOGGER_ADAPTER',
     help: 'Adapter module for the logging sub-system',
@@ -1507,3 +1514,11 @@ module.exports.LogLevels = {
     default: 'info',
   },
 };
+module.exports.LogEvents = {
+  usernameAlreadyExists: {
+    env: 'PARSE_SERVER_LOG_EVENTS_USERNAME_ALREADY_EXISTS',
+    help:
+      'Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.',
+    default: 'error',
+  },
+};
diff --git a/src/Options/docs.js b/src/Options/docs.js
index 9569239ef7..5283309ae3 100644
--- a/src/Options/docs.js
+++ b/src/Options/docs.js
@@ -63,6 +63,7 @@
  * @property {Boolean} jsonLogs Log as structured JSON objects
  * @property {LiveQueryOptions} liveQuery parse-server's LiveQuery configuration object
  * @property {LiveQueryServerOptions} liveQueryServerOptions Live query server configuration options (will start the liveQuery server)
+ * @property {LogEvents} logEvents (Optional) Overrides the log levels used by specific log events.
  * @property {Adapter<LoggerAdapter>} loggerAdapter Adapter module for the logging sub-system
  * @property {String} logLevel Sets the level for logs
  * @property {LogLevels} logLevels (Optional) Overrides the log levels used internally by Parse Server to log events.
@@ -329,3 +330,8 @@
  * @property {String} triggerBeforeError Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on error. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerBeforeSuccess Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.
  */
+
+/**
+ * @interface LogEvents
+ * @property {String} usernameAlreadyExists Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
+ */
diff --git a/src/Options/index.js b/src/Options/index.js
index cdeb7cd846..4f33ad98a6 100644
--- a/src/Options/index.js
+++ b/src/Options/index.js
@@ -98,6 +98,9 @@ export interface ParseServerOptions {
   /* (Optional) Overrides the log levels used internally by Parse Server to log events.
   :DEFAULT: {} */
   logLevels: ?LogLevels;
+  /* (Optional) Overrides the log levels used by specific log events.
+  :DEFAULT: {} */
+  logEvents: ?LogEvents;
   /* Maximum number of logs to keep. If not set, no logs will be removed. This can be a number of files or number of days. If using days, add 'd' as the suffix. (default: null) */
   maxLogFiles: ?NumberOrString;
   /* Disables console output
@@ -790,3 +793,10 @@ export interface LogLevels {
   */
   cloudFunctionError: ?string;
 }
+
+export interface LogEvents {
+  /* Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
+  :DEFAULT: error
+  */
+  usernameAlreadyExists: ?string;
+}
diff --git a/src/middlewares.js b/src/middlewares.js
index 2fedce8f08..12c8ba979b 100644
--- a/src/middlewares.js
+++ b/src/middlewares.js
@@ -466,6 +466,7 @@ export function handleParseErrors(err, req, res, next) {
     if (req.config && req.config.enableExpressErrorHandler) {
       return next(err);
     }
+    const usernameAlreadyExistsLevel = req.config?.logEvents?.usernameAlreadyExists || 'error';
     let httpStatus;
     // TODO: fill out this mapping
     switch (err.code) {
@@ -480,7 +481,17 @@ export function handleParseErrors(err, req, res, next) {
     }
     res.status(httpStatus);
     res.json({ code: err.code, error: err.message });
-    log.error('Parse error: ', err);
+    if (err.code === Parse.Error.USERNAME_TAKEN) {
+      if (usernameAlreadyExistsLevel !== 'silent') {
+        const loggerMethod =
+          typeof log[usernameAlreadyExistsLevel] === 'function'
+            ? log[usernameAlreadyExistsLevel].bind(log)
+            : log.error.bind(log);
+        loggerMethod('Parse error: ', err);
+      }
+    } else {
+      log.error('Parse error: ', err);
+    }
   } else if (err.status && err.message) {
     res.status(err.status);
     res.json({ error: err.message });
diff --git a/types/Options/index.d.ts b/types/Options/index.d.ts
index ad11050648..cc17583c4d 100644
--- a/types/Options/index.d.ts
+++ b/types/Options/index.d.ts
@@ -47,6 +47,7 @@ export interface ParseServerOptions {
     verbose?: boolean;
     logLevel?: string;
     logLevels?: LogLevels;
+    logEvents?: LogEvents;
     maxLogFiles?: NumberOrString;
     silent?: boolean;
     databaseURI: string;
@@ -298,4 +299,7 @@ export interface LogLevels {
     cloudFunctionSuccess?: string;
     cloudFunctionError?: string;
 }
+export interface LogEvents {
+    usernameAlreadyExists?: string;
+}
 export {};

From cd24f6db690dbe222204827ea0db7ade4dc9843f Mon Sep 17 00:00:00 2001
From: Lucas Coratger <73360179+coratgerl@users.noreply.github.com>
Date: Mon, 8 Dec 2025 08:27:52 +0100
Subject: [PATCH 2/7] fix: feedbacks

---
 resources/buildConfigDefinitions.js | 1 -
 src/Config.js                       | 5 ++---
 src/Options/Definitions.js          | 6 ++----
 src/Options/docs.js                 | 6 +-----
 src/Options/index.js                | 5 +----
 src/middlewares.js                  | 3 ++-
 types/Options/index.d.ts            | 4 +---
 7 files changed, 9 insertions(+), 21 deletions(-)

diff --git a/resources/buildConfigDefinitions.js b/resources/buildConfigDefinitions.js
index 2733016fba..2814394735 100644
--- a/resources/buildConfigDefinitions.js
+++ b/resources/buildConfigDefinitions.js
@@ -40,7 +40,6 @@ const nestedOptionEnvPrefix = {
   LogClientEvent: 'PARSE_SERVER_DATABASE_LOG_CLIENT_EVENTS_',
   LogLevel: 'PARSE_SERVER_LOG_LEVEL_',
   LogLevels: 'PARSE_SERVER_LOG_LEVELS_',
-  LogEvents: 'PARSE_SERVER_LOG_EVENTS_',
   PagesCustomUrlsOptions: 'PARSE_SERVER_PAGES_CUSTOM_URL_',
   PagesOptions: 'PARSE_SERVER_PAGES_',
   PagesRoute: 'PARSE_SERVER_PAGES_ROUTE_',
diff --git a/src/Config.js b/src/Config.js
index 9e982a3b82..3e218c6e19 100644
--- a/src/Config.js
+++ b/src/Config.js
@@ -14,7 +14,6 @@ import {
   FileUploadOptions,
   IdempotencyOptions,
   LogLevels,
-  LogEvents,
   PagesOptions,
   ParseServerOptions,
   SchemaOptions,
@@ -645,14 +644,14 @@ export class Config {
   }
 
   static validateLogEvents(logEvents) {
-    for (const key of Object.keys(LogEvents)) {
+    for (const key of Object.keys(LogLevels)) {
       if (logEvents[key]) {
         // We validate that each configured event uses a valid log *level* (same list as logLevels).
         if (validLogLevels.indexOf(logEvents[key]) === -1) {
           throw `'${key}' must be one of ${JSON.stringify(validLogLevels)}`;
         }
       } else {
-        logEvents[key] = LogEvents[key].default;
+        logEvents[key] = LogLevels[key].default;
       }
     }
   }
diff --git a/src/Options/Definitions.js b/src/Options/Definitions.js
index 0aa2962b95..3d0a7d2085 100644
--- a/src/Options/Definitions.js
+++ b/src/Options/Definitions.js
@@ -356,7 +356,7 @@ module.exports.ParseServerOptions = {
     env: 'PARSE_SERVER_LOG_EVENTS',
     help: '(Optional) Overrides the log levels used by specific log events.',
     action: parsers.objectParser,
-    type: 'LogEvents',
+    type: 'LogLevels',
     default: {},
   },
   loggerAdapter: {
@@ -1513,10 +1513,8 @@ module.exports.LogLevels = {
       'Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.',
     default: 'info',
   },
-};
-module.exports.LogEvents = {
   usernameAlreadyExists: {
-    env: 'PARSE_SERVER_LOG_EVENTS_USERNAME_ALREADY_EXISTS',
+    env: 'PARSE_SERVER_LOG_LEVELS_USERNAME_ALREADY_EXISTS',
     help:
       'Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.',
     default: 'error',
diff --git a/src/Options/docs.js b/src/Options/docs.js
index 5283309ae3..ac9abc603d 100644
--- a/src/Options/docs.js
+++ b/src/Options/docs.js
@@ -63,7 +63,7 @@
  * @property {Boolean} jsonLogs Log as structured JSON objects
  * @property {LiveQueryOptions} liveQuery parse-server's LiveQuery configuration object
  * @property {LiveQueryServerOptions} liveQueryServerOptions Live query server configuration options (will start the liveQuery server)
- * @property {LogEvents} logEvents (Optional) Overrides the log levels used by specific log events.
+ * @property {LogLevels} logEvents (Optional) Overrides the log levels used by specific log events.
  * @property {Adapter<LoggerAdapter>} loggerAdapter Adapter module for the logging sub-system
  * @property {String} logLevel Sets the level for logs
  * @property {LogLevels} logLevels (Optional) Overrides the log levels used internally by Parse Server to log events.
@@ -329,9 +329,5 @@
  * @property {String} triggerAfter Log level used by the Cloud Code Triggers `afterSave`, `afterDelete`, `afterFind`, `afterLogout`. Default is `info`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerBeforeError Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on error. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerBeforeSuccess Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.
- */
-
-/**
- * @interface LogEvents
  * @property {String} usernameAlreadyExists Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  */
diff --git a/src/Options/index.js b/src/Options/index.js
index 4f33ad98a6..f442c6b643 100644
--- a/src/Options/index.js
+++ b/src/Options/index.js
@@ -100,7 +100,7 @@ export interface ParseServerOptions {
   logLevels: ?LogLevels;
   /* (Optional) Overrides the log levels used by specific log events.
   :DEFAULT: {} */
-  logEvents: ?LogEvents;
+  logEvents: ?LogLevels;
   /* Maximum number of logs to keep. If not set, no logs will be removed. This can be a number of files or number of days. If using days, add 'd' as the suffix. (default: null) */
   maxLogFiles: ?NumberOrString;
   /* Disables console output
@@ -792,9 +792,6 @@ export interface LogLevels {
   :DEFAULT: error
   */
   cloudFunctionError: ?string;
-}
-
-export interface LogEvents {
   /* Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
   :DEFAULT: error
   */
diff --git a/src/middlewares.js b/src/middlewares.js
index 12c8ba979b..edcf96bca6 100644
--- a/src/middlewares.js
+++ b/src/middlewares.js
@@ -466,7 +466,8 @@ export function handleParseErrors(err, req, res, next) {
     if (req.config && req.config.enableExpressErrorHandler) {
       return next(err);
     }
-    const usernameAlreadyExistsLevel = req.config?.logEvents?.usernameAlreadyExists || 'error';
+    const usernameAlreadyExistsLevel =
+      req.config?.logEvents?.usernameAlreadyExists || 'info';
     let httpStatus;
     // TODO: fill out this mapping
     switch (err.code) {
diff --git a/types/Options/index.d.ts b/types/Options/index.d.ts
index cc17583c4d..e6618e65bf 100644
--- a/types/Options/index.d.ts
+++ b/types/Options/index.d.ts
@@ -47,7 +47,7 @@ export interface ParseServerOptions {
     verbose?: boolean;
     logLevel?: string;
     logLevels?: LogLevels;
-    logEvents?: LogEvents;
+    logEvents?: LogLevels;
     maxLogFiles?: NumberOrString;
     silent?: boolean;
     databaseURI: string;
@@ -298,8 +298,6 @@ export interface LogLevels {
     triggerBeforeError?: string;
     cloudFunctionSuccess?: string;
     cloudFunctionError?: string;
-}
-export interface LogEvents {
     usernameAlreadyExists?: string;
 }
 export {};

From 4526b0a3e700381e90f4b7ad2ab999a7e103ad43 Mon Sep 17 00:00:00 2001
From: Lucas Coratger <73360179+coratgerl@users.noreply.github.com>
Date: Mon, 8 Dec 2025 08:28:56 +0100
Subject: [PATCH 3/7] fix: remove log events

---
 resources/buildConfigDefinitions.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/resources/buildConfigDefinitions.js b/resources/buildConfigDefinitions.js
index 2814394735..0b7dcdac3d 100644
--- a/resources/buildConfigDefinitions.js
+++ b/resources/buildConfigDefinitions.js
@@ -25,7 +25,6 @@ const nestedOptionTypes = [
   'SecurityOptions',
   'SchemaOptions',
   'LogLevels',
-  'LogEvents',
 ];
 
 /** The prefix of environment variables for nested options. */

From 5087a15284e5284d31a57c0403d4600bf7073864 Mon Sep 17 00:00:00 2001
From: Lucas Coratger <73360179+coratgerl@users.noreply.github.com>
Date: Tue, 9 Dec 2025 08:12:57 +0100
Subject: [PATCH 4/7] fix: feedbacks

---
 spec/ParseUser.spec.js     |  4 ++--
 src/Config.js              | 15 ---------------
 src/Options/Definitions.js |  7 -------
 src/Options/docs.js        |  1 -
 src/Options/index.js       |  3 ---
 src/middlewares.js         |  2 +-
 types/Options/index.d.ts   |  1 -
 7 files changed, 3 insertions(+), 30 deletions(-)

diff --git a/spec/ParseUser.spec.js b/spec/ParseUser.spec.js
index a3743f75d8..48c457cf32 100644
--- a/spec/ParseUser.spec.js
+++ b/spec/ParseUser.spec.js
@@ -82,7 +82,7 @@ describe('Parse.User testing', () => {
   });
 
   it('logs username taken with configured log level', async () => {
-    await reconfigureServer({ logEvents: { usernameAlreadyExists: 'warn' } });
+    await reconfigureServer({ logLevels: { usernameAlreadyExists: 'warn' } });
     const logger = require('../lib/logger').default;
     loggerErrorSpy = spyOn(logger, 'error').and.callThrough();
     const loggerWarnSpy = spyOn(logger, 'warn').and.callThrough();
@@ -110,7 +110,7 @@ describe('Parse.User testing', () => {
   });
 
   it('can silence username taken log event', async () => {
-    await reconfigureServer({ logEvents: { usernameAlreadyExists: 'silent' } });
+    await reconfigureServer({ logLevels: { usernameAlreadyExists: 'silent' } });
     const logger = require('../lib/logger').default;
     loggerErrorSpy = spyOn(logger, 'error').and.callThrough();
     const loggerWarnSpy = spyOn(logger, 'warn').and.callThrough();
diff --git a/src/Config.js b/src/Config.js
index 3e218c6e19..241edf9771 100644
--- a/src/Config.js
+++ b/src/Config.js
@@ -128,7 +128,6 @@ export class Config {
     requestKeywordDenylist,
     allowExpiredAuthDataToken,
     logLevels,
-    logEvents,
     rateLimit,
     databaseOptions,
     extendSessionOnUse,
@@ -171,7 +170,6 @@ export class Config {
     this.validateRequestKeywordDenylist(requestKeywordDenylist);
     this.validateRateLimit(rateLimit);
     this.validateLogLevels(logLevels);
-    this.validateLogEvents(logEvents);
     this.validateDatabaseOptions(databaseOptions);
     this.validateCustomPages(customPages);
     this.validateAllowClientClassCreation(allowClientClassCreation);
@@ -643,19 +641,6 @@ export class Config {
     }
   }
 
-  static validateLogEvents(logEvents) {
-    for (const key of Object.keys(LogLevels)) {
-      if (logEvents[key]) {
-        // We validate that each configured event uses a valid log *level* (same list as logLevels).
-        if (validLogLevels.indexOf(logEvents[key]) === -1) {
-          throw `'${key}' must be one of ${JSON.stringify(validLogLevels)}`;
-        }
-      } else {
-        logEvents[key] = LogLevels[key].default;
-      }
-    }
-  }
-
   static validateDatabaseOptions(databaseOptions) {
     if (databaseOptions == undefined) {
       return;
diff --git a/src/Options/Definitions.js b/src/Options/Definitions.js
index 3d0a7d2085..4eb3ed330c 100644
--- a/src/Options/Definitions.js
+++ b/src/Options/Definitions.js
@@ -352,13 +352,6 @@ module.exports.ParseServerOptions = {
     action: parsers.objectParser,
     type: 'LiveQueryServerOptions',
   },
-  logEvents: {
-    env: 'PARSE_SERVER_LOG_EVENTS',
-    help: '(Optional) Overrides the log levels used by specific log events.',
-    action: parsers.objectParser,
-    type: 'LogLevels',
-    default: {},
-  },
   loggerAdapter: {
     env: 'PARSE_SERVER_LOGGER_ADAPTER',
     help: 'Adapter module for the logging sub-system',
diff --git a/src/Options/docs.js b/src/Options/docs.js
index ac9abc603d..c90772cbf0 100644
--- a/src/Options/docs.js
+++ b/src/Options/docs.js
@@ -63,7 +63,6 @@
  * @property {Boolean} jsonLogs Log as structured JSON objects
  * @property {LiveQueryOptions} liveQuery parse-server's LiveQuery configuration object
  * @property {LiveQueryServerOptions} liveQueryServerOptions Live query server configuration options (will start the liveQuery server)
- * @property {LogLevels} logEvents (Optional) Overrides the log levels used by specific log events.
  * @property {Adapter<LoggerAdapter>} loggerAdapter Adapter module for the logging sub-system
  * @property {String} logLevel Sets the level for logs
  * @property {LogLevels} logLevels (Optional) Overrides the log levels used internally by Parse Server to log events.
diff --git a/src/Options/index.js b/src/Options/index.js
index f442c6b643..4bbe11db59 100644
--- a/src/Options/index.js
+++ b/src/Options/index.js
@@ -98,9 +98,6 @@ export interface ParseServerOptions {
   /* (Optional) Overrides the log levels used internally by Parse Server to log events.
   :DEFAULT: {} */
   logLevels: ?LogLevels;
-  /* (Optional) Overrides the log levels used by specific log events.
-  :DEFAULT: {} */
-  logEvents: ?LogLevels;
   /* Maximum number of logs to keep. If not set, no logs will be removed. This can be a number of files or number of days. If using days, add 'd' as the suffix. (default: null) */
   maxLogFiles: ?NumberOrString;
   /* Disables console output
diff --git a/src/middlewares.js b/src/middlewares.js
index edcf96bca6..b10af3c778 100644
--- a/src/middlewares.js
+++ b/src/middlewares.js
@@ -467,7 +467,7 @@ export function handleParseErrors(err, req, res, next) {
       return next(err);
     }
     const usernameAlreadyExistsLevel =
-      req.config?.logEvents?.usernameAlreadyExists || 'info';
+      req.config?.logLevels?.usernameAlreadyExists || 'info';
     let httpStatus;
     // TODO: fill out this mapping
     switch (err.code) {
diff --git a/types/Options/index.d.ts b/types/Options/index.d.ts
index e6618e65bf..c841c6b202 100644
--- a/types/Options/index.d.ts
+++ b/types/Options/index.d.ts
@@ -47,7 +47,6 @@ export interface ParseServerOptions {
     verbose?: boolean;
     logLevel?: string;
     logLevels?: LogLevels;
-    logEvents?: LogLevels;
     maxLogFiles?: NumberOrString;
     silent?: boolean;
     databaseURI: string;

From b71c7d8228f01632a2319042d8e27285aef36e86 Mon Sep 17 00:00:00 2001
From: Lucas Coratger <73360179+coratgerl@users.noreply.github.com>
Date: Tue, 9 Dec 2025 21:14:09 +0100
Subject: [PATCH 5/7] fix: feedbacks

---
 spec/ParseUser.spec.js     |  4 ++--
 src/Options/Definitions.js |  2 +-
 src/Options/docs.js        |  2 +-
 src/Options/index.js       |  2 +-
 src/middlewares.js         | 10 +++++-----
 types/Options/index.d.ts   |  2 +-
 6 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/spec/ParseUser.spec.js b/spec/ParseUser.spec.js
index 48c457cf32..aaae271332 100644
--- a/spec/ParseUser.spec.js
+++ b/spec/ParseUser.spec.js
@@ -82,7 +82,7 @@ describe('Parse.User testing', () => {
   });
 
   it('logs username taken with configured log level', async () => {
-    await reconfigureServer({ logLevels: { usernameAlreadyExists: 'warn' } });
+    await reconfigureServer({ logLevels: { signupUsernameTaken: 'warn' } });
     const logger = require('../lib/logger').default;
     loggerErrorSpy = spyOn(logger, 'error').and.callThrough();
     const loggerWarnSpy = spyOn(logger, 'warn').and.callThrough();
@@ -110,7 +110,7 @@ describe('Parse.User testing', () => {
   });
 
   it('can silence username taken log event', async () => {
-    await reconfigureServer({ logLevels: { usernameAlreadyExists: 'silent' } });
+    await reconfigureServer({ logLevels: { signupUsernameTaken: 'silent' } });
     const logger = require('../lib/logger').default;
     loggerErrorSpy = spyOn(logger, 'error').and.callThrough();
     const loggerWarnSpy = spyOn(logger, 'warn').and.callThrough();
diff --git a/src/Options/Definitions.js b/src/Options/Definitions.js
index 4eb3ed330c..47b65ff817 100644
--- a/src/Options/Definitions.js
+++ b/src/Options/Definitions.js
@@ -1506,7 +1506,7 @@ module.exports.LogLevels = {
       'Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.',
     default: 'info',
   },
-  usernameAlreadyExists: {
+  signupUsernameTaken: {
     env: 'PARSE_SERVER_LOG_LEVELS_USERNAME_ALREADY_EXISTS',
     help:
       'Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.',
diff --git a/src/Options/docs.js b/src/Options/docs.js
index c90772cbf0..51f3556c25 100644
--- a/src/Options/docs.js
+++ b/src/Options/docs.js
@@ -328,5 +328,5 @@
  * @property {String} triggerAfter Log level used by the Cloud Code Triggers `afterSave`, `afterDelete`, `afterFind`, `afterLogout`. Default is `info`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerBeforeError Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on error. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerBeforeSuccess Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.
- * @property {String} usernameAlreadyExists Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
+ * @property {String} signupUsernameTaken Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  */
diff --git a/src/Options/index.js b/src/Options/index.js
index 4bbe11db59..5ee6912274 100644
--- a/src/Options/index.js
+++ b/src/Options/index.js
@@ -792,5 +792,5 @@ export interface LogLevels {
   /* Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
   :DEFAULT: error
   */
-  usernameAlreadyExists: ?string;
+  signupUsernameTaken: ?string;
 }
diff --git a/src/middlewares.js b/src/middlewares.js
index b10af3c778..1f4d8a0013 100644
--- a/src/middlewares.js
+++ b/src/middlewares.js
@@ -466,8 +466,8 @@ export function handleParseErrors(err, req, res, next) {
     if (req.config && req.config.enableExpressErrorHandler) {
       return next(err);
     }
-    const usernameAlreadyExistsLevel =
-      req.config?.logLevels?.usernameAlreadyExists || 'info';
+    const signupUsernameTakenLevel =
+      req.config?.logLevels?.signupUsernameTaken || 'info';
     let httpStatus;
     // TODO: fill out this mapping
     switch (err.code) {
@@ -483,10 +483,10 @@ export function handleParseErrors(err, req, res, next) {
     res.status(httpStatus);
     res.json({ code: err.code, error: err.message });
     if (err.code === Parse.Error.USERNAME_TAKEN) {
-      if (usernameAlreadyExistsLevel !== 'silent') {
+      if (signupUsernameTakenLevel !== 'silent') {
         const loggerMethod =
-          typeof log[usernameAlreadyExistsLevel] === 'function'
-            ? log[usernameAlreadyExistsLevel].bind(log)
+          typeof log[signupUsernameTakenLevel] === 'function'
+            ? log[signupUsernameTakenLevel].bind(log)
             : log.error.bind(log);
         loggerMethod('Parse error: ', err);
       }
diff --git a/types/Options/index.d.ts b/types/Options/index.d.ts
index c841c6b202..409dc97248 100644
--- a/types/Options/index.d.ts
+++ b/types/Options/index.d.ts
@@ -297,6 +297,6 @@ export interface LogLevels {
     triggerBeforeError?: string;
     cloudFunctionSuccess?: string;
     cloudFunctionError?: string;
-    usernameAlreadyExists?: string;
+    signupUsernameTaken?: string;
 }
 export {};

From 86a04804cac299502b3121daf2c71f88b0f165e9 Mon Sep 17 00:00:00 2001
From: Lucas Coratger <73360179+coratgerl@users.noreply.github.com>
Date: Thu, 11 Dec 2025 09:26:30 +0100
Subject: [PATCH 6/7] fix: run definitions

---
 src/Options/Definitions.js | 12 ++++++------
 src/Options/docs.js        |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/Options/Definitions.js b/src/Options/Definitions.js
index 47b65ff817..d5a47141a6 100644
--- a/src/Options/Definitions.js
+++ b/src/Options/Definitions.js
@@ -1488,6 +1488,12 @@ module.exports.LogLevels = {
       'Log level used by the Cloud Code Functions on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.',
     default: 'info',
   },
+  signupUsernameTaken: {
+    env: 'PARSE_SERVER_LOG_LEVELS_SIGNUP_USERNAME_TAKEN',
+    help:
+      'Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.',
+    default: 'error',
+  },
   triggerAfter: {
     env: 'PARSE_SERVER_LOG_LEVELS_TRIGGER_AFTER',
     help:
@@ -1506,10 +1512,4 @@ module.exports.LogLevels = {
       'Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.',
     default: 'info',
   },
-  signupUsernameTaken: {
-    env: 'PARSE_SERVER_LOG_LEVELS_USERNAME_ALREADY_EXISTS',
-    help:
-      'Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.',
-    default: 'error',
-  },
 };
diff --git a/src/Options/docs.js b/src/Options/docs.js
index 51f3556c25..0d508e0443 100644
--- a/src/Options/docs.js
+++ b/src/Options/docs.js
@@ -325,8 +325,8 @@
  * @interface LogLevels
  * @property {String} cloudFunctionError Log level used by the Cloud Code Functions on error. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} cloudFunctionSuccess Log level used by the Cloud Code Functions on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.
+ * @property {String} signupUsernameTaken Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerAfter Log level used by the Cloud Code Triggers `afterSave`, `afterDelete`, `afterFind`, `afterLogout`. Default is `info`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerBeforeError Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on error. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerBeforeSuccess Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.
- * @property {String} signupUsernameTaken Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  */

From 042286459c7c2de528cd23237eec446099b5aaec Mon Sep 17 00:00:00 2001
From: Lucas Coratger <73360179+coratgerl@users.noreply.github.com>
Date: Thu, 11 Dec 2025 11:00:26 +0100
Subject: [PATCH 7/7] fix: default

---
 src/Options/Definitions.js | 4 ++--
 src/Options/docs.js        | 2 +-
 src/Options/index.js       | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/Options/Definitions.js b/src/Options/Definitions.js
index d5a47141a6..687901a70d 100644
--- a/src/Options/Definitions.js
+++ b/src/Options/Definitions.js
@@ -1491,8 +1491,8 @@ module.exports.LogLevels = {
   signupUsernameTaken: {
     env: 'PARSE_SERVER_LOG_LEVELS_SIGNUP_USERNAME_TAKEN',
     help:
-      'Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.',
-    default: 'error',
+      'Log level used when a sign-up fails because the username already exists. Default is `info`. See [LogLevel](LogLevel.html) for available values.',
+    default: 'info',
   },
   triggerAfter: {
     env: 'PARSE_SERVER_LOG_LEVELS_TRIGGER_AFTER',
diff --git a/src/Options/docs.js b/src/Options/docs.js
index 0d508e0443..4de7054187 100644
--- a/src/Options/docs.js
+++ b/src/Options/docs.js
@@ -325,7 +325,7 @@
  * @interface LogLevels
  * @property {String} cloudFunctionError Log level used by the Cloud Code Functions on error. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} cloudFunctionSuccess Log level used by the Cloud Code Functions on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.
- * @property {String} signupUsernameTaken Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
+ * @property {String} signupUsernameTaken Log level used when a sign-up fails because the username already exists. Default is `info`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerAfter Log level used by the Cloud Code Triggers `afterSave`, `afterDelete`, `afterFind`, `afterLogout`. Default is `info`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerBeforeError Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on error. Default is `error`. See [LogLevel](LogLevel.html) for available values.
  * @property {String} triggerBeforeSuccess Log level used by the Cloud Code Triggers `beforeSave`, `beforeDelete`, `beforeFind`, `beforeLogin` on success. Default is `info`. See [LogLevel](LogLevel.html) for available values.
diff --git a/src/Options/index.js b/src/Options/index.js
index 5ee6912274..0175abff9e 100644
--- a/src/Options/index.js
+++ b/src/Options/index.js
@@ -789,8 +789,8 @@ export interface LogLevels {
   :DEFAULT: error
   */
   cloudFunctionError: ?string;
-  /* Log level used when a sign-up fails because the username already exists. Default is `error`. See [LogLevel](LogLevel.html) for available values.
-  :DEFAULT: error
+  /* Log level used when a sign-up fails because the username already exists. Default is `info`. See [LogLevel](LogLevel.html) for available values.
+  :DEFAULT: info
   */
   signupUsernameTaken: ?string;
 }