Now we have DomainError entity

src/domain/entities/domainError.ts

@@ -0,0 +1,11 @@
+/**
+ * DomainError entity
+ */
+export class DomainError extends Error {
+  /**
+   * @param message - description of why the error was thrown
+   */
+  constructor(message: string) {
+    super(message);
+  }
+}

src/domain/service/note.ts

@@ -1,6 +1,7 @@
 import type { Note, NoteInternalId, NotePublicId } from '@domain/entities/note.js';
 import type NoteRepository from '@repository/note.repository.js';
 import { createPublicId } from '@infrastructure/utils/id.js';
+import { DomainError } from '@domain/entities/domainError';
 
 /**
  * Note service
@@ -54,7 +55,7 @@ export default class NoteService {
     const updatedNote = await this.repository.updateNoteContentById(id, content);
 
     if (updatedNote === null) {
-      throw new Error(`Note with id ${id} was not updated`);
+      throw new DomainError(`Note with id ${id} was not updated`);
     }
 
     return updatedNote;
@@ -69,7 +70,7 @@ export default class NoteService {
     const note = await this.repository.getNoteById(id);
 
     if (note === null) {
-      throw new Error(`Note with id ${id} was not found`);
+      throw new DomainError(`Note with id ${id} was not found`);
     }
 
     return note;
@@ -84,7 +85,7 @@ export default class NoteService {
     const note = await this.repository.getNoteByPublicId(publicId);
 
     if (note === null) {
-      throw new Error(`Note with public id ${publicId} was not found`);
+      throw new DomainError(`Note with public id ${publicId} was not found`);
     }
 
     return note;

src/presentation/http/http-api.ts

@@ -26,6 +26,7 @@ import NoteListRouter from '@presentation/http/router/noteList.js';
 import { EditorToolSchema } from './schema/EditorTool.js';
 import JoinRouter from '@presentation/http/router/join.js';
 import { JoinSchemaParams, JoinSchemaResponse } from './schema/Join.js';
+import { DomainError } from '@domain/entities/domainError.js';
 
 
 const appServerLogger = getLogger('appServer');
@@ -338,10 +339,10 @@ export default class HttpApi implements Api {
    */
   private domainErrorHandler(): void {
     this.server?.setErrorHandler(function (error, request, reply) {
-      const statusCode = error.statusCode;
-
-      // eslint-disable-next-line @typescript-eslint/no-magic-numbers
-      if (statusCode === 500) {
+      /**
+       * If we have an error that occurs in the domain-level we reply it with special format
+       */
+      if (error instanceof DomainError) {
         this.log.error(error);
         void reply.domainError(error.message);
       }