56 - Add use cases to get the current authenticated user and log out

src/auth/domain/repositories/IAuthRepository.ts

@@ -0,0 +1,3 @@
+export interface IAuthRepository {
+  logout(): Promise<void>;
+}

src/auth/domain/useCases/Logout.ts

@@ -0,0 +1,14 @@
+import { UseCase } from '../../../core/domain/useCases/UseCase';
+import { IAuthRepository } from '../repositories/IAuthRepository';
+
+export class Logout implements UseCase<void> {
+  private authRepository: IAuthRepository;
+
+  constructor(logoutRepository: IAuthRepository) {
+    this.authRepository = logoutRepository;
+  }
+
+  async execute(): Promise<void> {
+    await this.authRepository.logout();
+  }
+}

src/auth/index.ts

@@ -0,0 +1,6 @@
+import { AuthRepository } from './infra/repositories/AuthRepository';
+import { Logout } from './domain/useCases/Logout';
+
+const logout = new Logout(new AuthRepository());
+
+export { logout };

src/auth/infra/repositories/AuthRepository.ts

@@ -0,0 +1,12 @@
+import { ApiRepository } from '../../../core/infra/repositories/ApiRepository';
+import { IAuthRepository } from '../../domain/repositories/IAuthRepository';
+
+export class AuthRepository extends ApiRepository implements IAuthRepository {
+  public async logout(): Promise<void> {
+    return this.doPost('/logout', '')
+      .then(() => undefined)
+      .catch((error) => {
+        throw error;
+      });
+  }
+}

src/core/domain/repositories/ReadError.ts

@@ -1,9 +1,7 @@
-export class ReadError extends Error {
+import { RepositoryError } from './RepositoryError';
+
+export class ReadError extends RepositoryError {
   constructor(reason?: string) {
-    let message = 'There was an error when reading the resource.';
-    if (reason) {
-      message += ` Reason was: ${reason}`;
-    }
-    super(message);
+    super('There was an error when reading the resource.', reason);
   }
 }

src/core/domain/repositories/RepositoryError.ts

@@ -0,0 +1,8 @@
+export abstract class RepositoryError extends Error {
+  constructor(message: string, reason?: string) {
+    if (reason) {
+      message += ` Reason was: ${reason}`;
+    }
+    super(message);
+  }
+}

src/core/domain/repositories/WriteError.ts

@@ -0,0 +1,7 @@
+import { RepositoryError } from './RepositoryError';
+
+export class WriteError extends RepositoryError {
+  constructor(reason?: string) {
+    super('There was an error when writing the resource.', reason);
+  }
+}

src/core/index.ts

@@ -1 +1,3 @@
 export { ReadError } from './domain/repositories/ReadError';
+export { WriteError } from './domain/repositories/WriteError';
+export { ApiConfig } from './infra/repositories/ApiConfig';

src/core/infra/repositories/ApiConfig.ts

@@ -0,0 +1,7 @@
+export class ApiConfig {
+  static DATAVERSE_API_URL: string;
+
+  static init(dataverseApiUrl: string) {
+    this.DATAVERSE_API_URL = dataverseApiUrl;
+  }
+}

src/core/infra/repositories/ApiRepository.ts

@@ -0,0 +1,38 @@
+import axios, { AxiosResponse } from 'axios';
+import { ApiConfig } from './ApiConfig';
+import { ReadError } from '../../domain/repositories/ReadError';
+import { WriteError } from '../../domain/repositories/WriteError';
+
+/* TODO: 
+  We set { withCredentials: true } to send the JSESSIONID cookie in the requests for API authentication. 
+  This is required, along with the session auth feature flag enabled in the backend, to be able to authenticate using the JSESSIONID cookie.
+  Auth mechanisms like this must be configurable to set the one that fits the particular use case of js-dataverse. (For the SPA MVP, it is the session cookie API auth).
+  For 2.0.0, we must also support API key auth to be backwards compatible and support use cases other than SPA MVP.
+*/
+export abstract class ApiRepository {
+  public async doGet(apiEndpoint: string): Promise<AxiosResponse> {
+    return await axios
+      .get(this.buildRequestUrl(apiEndpoint), { withCredentials: true })
+      .then((response) => response)
+      .catch((error) => {
+        throw new ReadError(
+          `[${error.response.status}]${error.response.data ? ` ${error.response.data.message}` : ''}`,
+        );
+      });
+  }
+
+  public async doPost(apiEndpoint: string, data: string | object): Promise<AxiosResponse> {
+    return await axios
+      .post(this.buildRequestUrl(apiEndpoint), JSON.stringify(data), { withCredentials: true })
+      .then((response) => response)
+      .catch((error) => {
+        throw new WriteError(
+          `[${error.response.status}]${error.response.data ? ` ${error.response.data.message}` : ''}`,
+        );
+      });
+  }
+
+  private buildRequestUrl(apiEndpoint: string): string {
+    return `${ApiConfig.DATAVERSE_API_URL}${apiEndpoint}`;
+  }
+}

src/index.ts

@@ -1,2 +1,4 @@
 export * from './core';
 export * from './info';
+export * from './users';
+export * from './auth';

src/info/index.ts

@@ -1,6 +1,6 @@
 import { DataverseInfoRepository } from './infra/repositories/DataverseInfoRepository';
 import { GetDataverseVersion } from './domain/useCases/GetDataverseVersion';
 
-const getDataverseVersion = new GetDataverseVersion(new DataverseInfoRepository(process.env.DATAVERSE_API_URL));
+const getDataverseVersion = new GetDataverseVersion(new DataverseInfoRepository());
 
 export { getDataverseVersion };

src/info/infra/repositories/DataverseInfoRepository.ts

@@ -1,17 +1,14 @@
+import { ApiRepository } from '../../../core/infra/repositories/ApiRepository';
 import { IDataverseInfoRepository } from '../../domain/repositories/IDataverseInfoRepository';
-import axios, { AxiosResponse } from 'axios';
-import { ReadError } from '../../../core/domain/repositories/ReadError';
 import { DataverseVersion } from '../../domain/models/DataverseVersion';
+import { AxiosResponse } from 'axios';
 
-export class DataverseInfoRepository implements IDataverseInfoRepository {
-  constructor(private readonly apiUrl: string) {}
-
+export class DataverseInfoRepository extends ApiRepository implements IDataverseInfoRepository {
   public async getDataverseVersion(): Promise<DataverseVersion> {
-    return await axios
-      .get(`${this.apiUrl}/info/version`)
+    return this.doGet('/info/version')
       .then((response) => this.getVersionFromResponse(response))
       .catch((error) => {
-        throw new ReadError(error.response.status + error.response.data ? ': ' + error.response.data.message : '');
+        throw error;
       });
   }
 

src/users/domain/models/AuthenticatedUser.ts

@@ -0,0 +1,19 @@
+export interface AuthenticatedUser {
+  id: number;
+  persistentUserId: string;
+  identifier: string;
+  displayName: string;
+  firstName: string;
+  lastName: string;
+  email: string;
+  superuser: boolean;
+  deactivated: boolean;
+  createdTime: string;
+  authenticationProviderId: string;
+  lastLoginTime?: string;
+  lastApiUseTime?: string;
+  deactivatedTime?: string;
+  affiliation?: string;
+  position?: string;
+  emailLastConfirmed?: string;
+}

src/users/domain/repositories/IUsersRepository.ts

@@ -0,0 +1,5 @@
+import { AuthenticatedUser } from '../models/AuthenticatedUser';
+
+export interface IUsersRepository {
+  getCurrentAuthenticatedUser(): Promise<AuthenticatedUser>;
+}

src/users/domain/useCases/GetCurrentAuthenticatedUser.ts

@@ -0,0 +1,15 @@
+import { UseCase } from '../../../core/domain/useCases/UseCase';
+import { IUsersRepository } from '../repositories/IUsersRepository';
+import { AuthenticatedUser } from '../models/AuthenticatedUser';
+
+export class GetCurrentAuthenticatedUser implements UseCase<AuthenticatedUser> {
+  private usersRepository: IUsersRepository;
+
+  constructor(usersRepository: IUsersRepository) {
+    this.usersRepository = usersRepository;
+  }
+
+  async execute(): Promise<AuthenticatedUser> {
+    return await this.usersRepository.getCurrentAuthenticatedUser();
+  }
+}

src/users/index.ts

@@ -0,0 +1,7 @@
+import { UsersRepository } from './infra/repositories/UsersRepository';
+import { GetCurrentAuthenticatedUser } from './domain/useCases/GetCurrentAuthenticatedUser';
+
+const getCurrentAuthenticatedUser = new GetCurrentAuthenticatedUser(new UsersRepository());
+
+export { getCurrentAuthenticatedUser };
+export { AuthenticatedUser } from './domain/models/AuthenticatedUser';

src/users/infra/repositories/UsersRepository.ts

@@ -0,0 +1,37 @@
+import { ApiRepository } from '../../../core/infra/repositories/ApiRepository';
+import { IUsersRepository } from '../../domain/repositories/IUsersRepository';
+import { AuthenticatedUser } from '../../domain/models/AuthenticatedUser';
+import { AxiosResponse } from 'axios';
+
+export class UsersRepository extends ApiRepository implements IUsersRepository {
+  public async getCurrentAuthenticatedUser(): Promise<AuthenticatedUser> {
+    return this.doGet('/users/:me')
+      .then((response) => this.getAuthenticatedUserFromResponse(response))
+      .catch((error) => {
+        throw error;
+      });
+  }
+
+  private getAuthenticatedUserFromResponse(response: AxiosResponse): AuthenticatedUser {
+    const responseData = response.data.data;
+    return {
+      id: responseData.id,
+      persistentUserId: responseData.persistentUserId,
+      identifier: responseData.identifier,
+      displayName: responseData.displayName,
+      firstName: responseData.firstName,
+      lastName: responseData.lastName,
+      email: responseData.email,
+      superuser: responseData.superuser,
+      deactivated: responseData.deactivated,
+      createdTime: responseData.createdTime,
+      authenticationProviderId: responseData.authenticationProviderId,
+      lastLoginTime: responseData.lastLoginTime,
+      lastApiUseTime: responseData.lastApiUseTime,
+      deactivatedTime: responseData.deactivatedTime,
+      affiliation: responseData.affiliation,
+      position: responseData.position,
+      emailLastConfirmed: responseData.emailLastConfirmed,
+    };
+  }
+}

test/integration/info/DataverseInfoRepository.test.ts

@@ -1,8 +1,11 @@
 import { DataverseInfoRepository } from '../../../src/info/infra/repositories/DataverseInfoRepository';
+import { ApiConfig } from '../../../src/core/infra/repositories/ApiConfig';
 
 describe('getDataverseVersion', () => {
   // TODO: Change API URL to another of an integration test oriented Dataverse instance
-  const sut: DataverseInfoRepository = new DataverseInfoRepository('https://demo.dataverse.org/api/v1');
+  const sut: DataverseInfoRepository = new DataverseInfoRepository();
+
+  ApiConfig.init('https://demo.dataverse.org/api/v1');
 
   test('should return Dataverse version', async () => {
     const actual = await sut.getDataverseVersion();

test/integration/users/UsersRepository.test.ts

@@ -0,0 +1,23 @@
+import { UsersRepository } from '../../../src/users/infra/repositories/UsersRepository';
+import { ReadError } from '../../../src/core/domain/repositories/ReadError';
+import { assert } from 'sinon';
+import { ApiConfig } from '../../../src/core/infra/repositories/ApiConfig';
+
+describe('getCurrentAuthenticatedUser', () => {
+  // TODO: Change API URL to another of an integration test oriented Dataverse instance
+  const sut: UsersRepository = new UsersRepository();
+
+  ApiConfig.init('https://demo.dataverse.org/api/v1');
+
+  test('should return error when authentication is not provided', async () => {
+    let error: ReadError = undefined;
+    await sut.getCurrentAuthenticatedUser().catch((e) => (error = e));
+
+    assert.match(
+      error.message,
+      'There was an error when reading the resource. Reason was: [400] User with token null not found.',
+    );
+  });
+
+  // TODO: Add more test cases once the integration test environment is established
+});

test/testHelpers/users/authenticatedUserHelper.ts

@@ -0,0 +1,19 @@
+import { AuthenticatedUser } from '../../../src/users/domain/models/AuthenticatedUser';
+
+export const createAuthenticatedUser = (): AuthenticatedUser => {
+  return {
+    id: 1,
+    persistentUserId: 'Test',
+    identifier: '@Test',
+    displayName: 'Test User',
+    firstName: 'Testname',
+    lastName: 'Testlastname',
+    email: 'testuser@dataverse.org',
+    superuser: false,
+    deactivated: false,
+    createdTime: '2023-04-14T11:52:28Z',
+    authenticationProviderId: 'builtin',
+    lastLoginTime: '2023-04-14T11:52:28Z',
+    lastApiUseTime: '2023-04-14T15:53:32Z',
+  };
+};

test/unit/auth/AuthRepository.test.ts

@@ -0,0 +1,50 @@
+import { AuthRepository } from '../../../src/auth/infra/repositories/AuthRepository';
+import { assert, createSandbox, SinonSandbox } from 'sinon';
+import axios from 'axios';
+import { expect } from 'chai';
+import { ApiConfig } from '../../../src/core/infra/repositories/ApiConfig';
+import { WriteError } from '../../../src/core/domain/repositories/WriteError';
+
+describe('logout', () => {
+  const sandbox: SinonSandbox = createSandbox();
+  const sut: AuthRepository = new AuthRepository();
+  const testApiUrl = 'https://test.dataverse.org/api/v1';
+
+  ApiConfig.init(testApiUrl);
+
+  afterEach(() => {
+    sandbox.restore();
+  });
+
+  test('should not return error on successful response', async () => {
+    const testSuccessfulResponse = {
+      data: {
+        status: 'OK',
+        data: {
+          message: 'User logged out',
+        },
+      },
+    };
+    const axiosPostStub = sandbox.stub(axios, 'post').resolves(testSuccessfulResponse);
+
+    await sut.logout();
+
+    assert.calledWithExactly(axiosPostStub, `${testApiUrl}/logout`, JSON.stringify(''), { withCredentials: true });
+  });
+
+  test('should return error result on error response', async () => {
+    const testErrorResponse = {
+      response: {
+        status: 'ERROR',
+        message: 'test',
+      },
+    };
+    const axiosPostStub = sandbox.stub(axios, 'post').rejects(testErrorResponse);
+
+    let error: WriteError = undefined;
+    await sut.logout().catch((e) => (error = e));
+
+    assert.calledWithExactly(axiosPostStub, `${testApiUrl}/logout`, JSON.stringify(''), { withCredentials: true });
+    expect(error).to.be.instanceOf(Error);
+  });
+});