new authorization

src/modules/authentication/core/domain/authentication.entity.ts

@@ -0,0 +1,43 @@
+import { AggregateRoot, AggregateID } from '@mobicoop/ddd-library';
+import * as bcrypt from 'bcrypt';
+import {
+  AuthenticationProps,
+  CreateAuthenticationProps,
+} from './authentication.types';
+import { AuthenticationCreatedDomainEvent } from './events/authentication-created.domain-event';
+import { AuthenticationDeletedDomainEvent } from './events/authentication-deleted.domain-event';
+
+export class AuthenticationEntity extends AggregateRoot<AuthenticationProps> {
+  protected readonly _id: AggregateID;
+
+  static create = async (
+    create: CreateAuthenticationProps,
+  ): Promise<AuthenticationEntity> => {
+    const props: AuthenticationProps = { ...create };
+    const hash = await bcrypt.hash(props.password, 10);
+    const authentication = new AuthenticationEntity({
+      id: props.userId,
+      props: {
+        userId: props.userId,
+        password: hash,
+        usernames: props.usernames,
+      },
+    });
+    authentication.addEvent(
+      new AuthenticationCreatedDomainEvent({ aggregateId: props.userId }),
+    );
+    return authentication;
+  };
+
+  delete(): void {
+    this.addEvent(
+      new AuthenticationDeletedDomainEvent({
+        aggregateId: this.id,
+      }),
+    );
+  }
+
+  validate(): void {
+    // entity business rules validation to protect it's invariant before saving entity to a database
+  }
+}

src/modules/authentication/core/domain/authentication.errors.ts

@@ -0,0 +1,21 @@
+import { ExceptionBase } from '@mobicoop/ddd-library';
+
+export class AuthenticationAlreadyExistsException extends ExceptionBase {
+  static readonly message = 'Authentication already exists';
+
+  public readonly code = 'AUTHENTICATION.ALREADY_EXISTS';
+
+  constructor(cause?: Error, metadata?: unknown) {
+    super(AuthenticationAlreadyExistsException.message, cause, metadata);
+  }
+}
+
+export class UsernameAlreadyExistsException extends ExceptionBase {
+  static readonly message = 'Username already exists';
+
+  public readonly code = 'USERNAME.ALREADY_EXISTS';
+
+  constructor(cause?: Error, metadata?: unknown) {
+    super(UsernameAlreadyExistsException.message, cause, metadata);
+  }
+}

src/modules/authentication/core/domain/authentication.types.ts

@@ -0,0 +1,15 @@
+import { UsernameProps } from './username.types';
+
+// All properties that an Authentication has
+export interface AuthenticationProps {
+  userId: string;
+  password: string;
+  usernames: UsernameProps[];
+}
+
+// Properties that are needed for an Authentication creation
+export interface CreateAuthenticationProps {
+  userId: string;
+  password: string;
+  usernames: UsernameProps[];
+}

src/modules/authentication/core/domain/events/authentication-created.domain-event.ts

@@ -0,0 +1,7 @@
+import { DomainEvent, DomainEventProps } from '@mobicoop/ddd-library';
+
+export class AuthenticationCreatedDomainEvent extends DomainEvent {
+  constructor(props: DomainEventProps<AuthenticationCreatedDomainEvent>) {
+    super(props);
+  }
+}

src/modules/authentication/core/domain/events/authentication-deleted.domain-event.ts

@@ -0,0 +1,7 @@
+import { DomainEvent, DomainEventProps } from '@mobicoop/ddd-library';
+
+export class AuthenticationDeletedDomainEvent extends DomainEvent {
+  constructor(props: DomainEventProps<AuthenticationDeletedDomainEvent>) {
+    super(props);
+  }
+}

src/modules/authentication/core/domain/events/username-added.domain-event.ts

@@ -0,0 +1,7 @@
+import { DomainEvent, DomainEventProps } from '@mobicoop/ddd-library';
+
+export class UsernameAddedDomainEvent extends DomainEvent {
+  constructor(props: DomainEventProps<UsernameAddedDomainEvent>) {
+    super(props);
+  }
+}

src/modules/authentication/core/domain/username.entity.ts

@@ -0,0 +1,27 @@
+import { AggregateID, AggregateRoot } from '@mobicoop/ddd-library';
+import { UsernameProps } from './username.types';
+import { UsernameAddedDomainEvent } from './events/username-added.domain-event';
+
+export class UsernameEntity extends AggregateRoot<UsernameProps> {
+  protected readonly _id: AggregateID;
+
+  static create = async (create: UsernameProps): Promise<UsernameEntity> => {
+    const props: UsernameProps = { ...create };
+    const username = new UsernameEntity({
+      id: props.name,
+      props: {
+        name: props.name,
+        userId: props.userId,
+        type: props.type,
+      },
+    });
+    username.addEvent(
+      new UsernameAddedDomainEvent({ aggregateId: props.name }),
+    );
+    return username;
+  };
+
+  validate(): void {
+    // entity business rules validation to protect it's invariant before saving entity to a database
+  }
+}

src/modules/authentication/core/domain/username.types.ts

@@ -0,0 +1,11 @@
+// All properties that a Username has
+export interface UsernameProps {
+  name: string;
+  userId?: string;
+  type: Type;
+}
+
+export enum Type {
+  EMAIL = 'EMAIL',
+  PHONE = 'PHONE',
+}