refactor: services into singleton

src/components/Forms/CourseForm/CourseForm.tsx

@@ -20,9 +20,13 @@ import FileSelect from '@educt/components/FileSelect';
  * Hooks
  */
 import { useToast } from '@chakra-ui/toast';
-import { useRootStore } from '@educt/hooks/useRootStore';
 import { useErrorHandler } from 'react-error-boundary';
 
+/**
+ * Services
+ */
+import { CategoryServiceInstance, UserServiceInstance } from '@educt/services';
+
 export type InputFields = {
   title: string;
   image?: File | undefined;
@@ -46,10 +50,6 @@ const CourseForm: React.FC<CourseFormPropsType> = ({ onSubmit, buttonLabel, isLo
     formState: { errors, isDirty },
   } = reactHookForm;
 
-  const {
-    userStore: { userService },
-    categoryStore: { categoryService },
-  } = useRootStore();
   const handleError = useErrorHandler();
   const toast = useToast();
 
@@ -58,7 +58,7 @@ const CourseForm: React.FC<CourseFormPropsType> = ({ onSubmit, buttonLabel, isLo
    */
   const loadUsersOptions = async (): Promise<OptionType[] | undefined> => {
     try {
-      const users = await userService.fetchAll({ limit: 12, role: UserRoleEnum.TEACHER });
+      const users = await UserServiceInstance.fetchAll({ limit: 12, role: UserRoleEnum.TEACHER });
 
       return users.data.map(user => ({
         label: user.fullname,
@@ -78,7 +78,7 @@ const CourseForm: React.FC<CourseFormPropsType> = ({ onSubmit, buttonLabel, isLo
    */
   const loadCategoriesOptions = async (): Promise<OptionType[] | undefined> => {
     try {
-      const categories = await categoryService.fetchAll();
+      const categories = await CategoryServiceInstance.fetchAll();
       return categories.data.map(category => ({
         label: category.title,
         value: category.id,

src/components/Forms/CourseForm/CreateCourseForm.tsx

@@ -21,10 +21,14 @@ import { useState } from 'react';
 import { useHistory } from 'react-router';
 import { useForm } from 'react-hook-form';
 import { useToast } from '@chakra-ui/toast';
-import { useRootStore } from '@educt/hooks/useRootStore';
 import useIsMountedRef from '@educt/hooks/useIsMountedRef';
 import { useErrorHandler } from 'react-error-boundary';
 
+/**
+ * Services
+ */
+import { CourseServiceInstance } from '@educt/services';
+
 /**
  * Schema
  */
@@ -34,9 +38,6 @@ type CreateFormCoursePropsType = {};
 
 const CreateFormCourse: React.FC<CreateFormCoursePropsType> = () => {
   const [isLoading, setIsLoading] = useState<boolean>(false);
-  const {
-    courseStore: { courseService },
-  } = useRootStore();
   const form = useForm<InputFields>({ resolver: yupResolver(CourseFormSchema) });
   const isMountedRef = useIsMountedRef();
   const history = useHistory();
@@ -46,10 +47,11 @@ const CreateFormCourse: React.FC<CreateFormCoursePropsType> = () => {
   /**
    * Submit handler
    */
+  // TODO: move request to useCreateCourse hook
   const onSubmit: SubmitHandler<InputFields> = async data => {
     try {
       setIsLoading(true);
-      const course = await courseService.create({
+      const course = await CourseServiceInstance.create({
         title: data.title,
         description: data.description,
         teacher_id: data.teacher_id,

src/components/Forms/CourseForm/EditCourseForm.tsx

@@ -1,12 +1,12 @@
 import React from 'react';
 import { Box } from '@chakra-ui/layout';
 import { yupResolver } from '@hookform/resolvers/yup';
-import { SubmitHandler } from 'react-hook-form';
 
 /**
  * Types
  */
 import { InputFields } from './CourseForm';
+import { SubmitHandler } from 'react-hook-form';
 
 /**
  * Components
@@ -19,10 +19,14 @@ import CourseForm from './CourseForm';
 import { useState } from 'react';
 import { useParams } from 'react-router';
 import { useForm } from 'react-hook-form';
-import { useRootStore } from '@educt/hooks/useRootStore';
 import { useErrorHandler } from 'react-error-boundary';
 import { useToast } from '@chakra-ui/toast';
 
+/**
+ * Services
+ */
+import { CourseServiceInstance } from '@educt/services';
+
 /**
  * Schema
  */
@@ -42,9 +46,6 @@ type EditFormCoursePropsType = {
 
 const EditFormCourse: React.FC<EditFormCoursePropsType> = ({ defaultValues }) => {
   const [isLoading, setIsLoading] = useState<boolean>(false);
-  const {
-    courseStore: { courseService },
-  } = useRootStore();
   const form = useForm<InputFields>({
     resolver: yupResolver(CourseFormSchema),
     defaultValues: {
@@ -62,10 +63,11 @@ const EditFormCourse: React.FC<EditFormCoursePropsType> = ({ defaultValues }) =>
   /**
    *  Submit handler
    */
+  // TODO move request to useUpdateCourse hook
   const onSubmit: SubmitHandler<InputFields> = async data => {
     try {
       setIsLoading(true);
-      const course = await courseService.update(id, {
+      const course = await CourseServiceInstance.update(id, {
         title: data.title,
         description: data.description,
         teacher_id: data.teacher_id,

src/pages/courses/edit/components/LessonList/LessonList.tsx

@@ -31,6 +31,11 @@ import { useDisclosure } from '@chakra-ui/hooks';
  */
 import { useErrorHandler } from 'react-error-boundary';
 
+/**
+ * Services
+ */
+import { LessonServiceInstance } from '@educt/services';
+
 type LessonListPropsType = {
   course: Omit<ICourse, 'students_count' | 'likes_count' | 'lessons_count'>;
 };
@@ -50,7 +55,6 @@ const CreateLessonButton: React.FC<{ id: string }> = ({ id }) => {
 const LessonList: React.FC<LessonListPropsType> = ({ course }) => {
   const history = useHistory();
   const {
-    lessonService,
     pageStore: { editCourseStore },
   } = useRootStore();
   const { onOpen: onOpenDeleteDialog, onClose: onCloseDeleteDialog, isOpen: isOpenDeleteDialog } = useDisclosure();
@@ -66,7 +70,7 @@ const LessonList: React.FC<LessonListPropsType> = ({ course }) => {
 
   const handleChangeOrder = async (ids: string[]) => {
     try {
-      const data = await lessonService.saveOrder(ids);
+      const data = await LessonServiceInstance.saveOrder(ids);
       return data;
     } catch (error: any) {
       if (error.response) {

src/services/ApiService.ts

@@ -1,15 +1,12 @@
 import axios, { AxiosInstance, AxiosRequestConfig } from 'axios';
-import RootStore from '@educt/stores/RootStore';
-
-export default class ApiService {
-  public root: RootStore;
+import apiConfig from '@educt/api.config';
 
+class ApiService {
   public api: AxiosInstance;
 
   public config: AxiosRequestConfig | undefined;
 
-  constructor(root: RootStore, config?: AxiosRequestConfig | undefined) {
-    this.root = root;
+  constructor(config?: AxiosRequestConfig | undefined) {
     this.config = config;
     this.api = axios.create(this.config);
     this.setupInterceptors();
@@ -20,17 +17,9 @@ export default class ApiService {
      * Response
      */
     this.api.interceptors.response.use(undefined, error => {
-      if (error.response) {
-        /**
-         * Unauthorized Error 401
-         */
-        if (error.response.status === 401) {
-          // this.root.userStore.me = null;
-          // this.root.authStore.setIsLoggedIn(false);
-          // Cookies.remove('logged_in');
-        }
-      }
       return Promise.reject(error);
     });
   }
 }
+
+export const ApiServiceInstance = new ApiService(apiConfig);

src/services/AuthService.ts

@@ -1,7 +1,20 @@
 import { IApiRespose, IToken } from '@educt/interfaces';
 import { AxiosInstance } from 'axios';
+import { ApiServiceInstance } from '.';
 
-export default class AuthService {
+export interface AuthServiceImpl {
+  /**
+   * Login user with login and passwors
+   */
+  requestLogin(login: string, password: string): Promise<IApiRespose<IToken>>;
+
+  /**
+   * Logout user
+   */
+  requestLogout(): Promise<IApiRespose<{}>>;
+}
+
+class AuthService implements AuthServiceImpl {
   public api: AxiosInstance;
 
   constructor(api: AxiosInstance) {
@@ -13,9 +26,9 @@ export default class AuthService {
    *
    * @param login User login
    * @param password User password
-   * @returns Login result data
+   * @returns Token result data
    */
-  public async requestLogin(login: string, password: string): Promise<IApiRespose<IToken>> {
+  public async requestLogin(login: string, password: string) {
     const result = await this.api.post('v1/auth/login', {
       login,
       password,
@@ -26,10 +39,12 @@ export default class AuthService {
   /**
    * Revoke token
    *
-   * @returns Any
+   * @returns Empty obj
    */
-  public async requestLogout(): Promise<IApiRespose<any>> {
+  public async requestLogout() {
     const result = await this.api.post('v1/auth/logout');
     return result.data;
   }
 }
+
+export const AuthServiceInstance = new AuthService(ApiServiceInstance.api);

src/services/CategoryService.ts

@@ -1,7 +1,8 @@
 import { AxiosInstance } from 'axios';
 import { IApiRespose, ICategory } from '@educt/interfaces';
+import { ApiServiceInstance } from '.';
 
-export default class CategoryService {
+class CategoryService {
   public api: AxiosInstance;
 
   constructor(api: AxiosInstance) {
@@ -18,3 +19,5 @@ export default class CategoryService {
     return result.data;
   }
 }
+
+export const CategoryServiceInstance = new CategoryService(ApiServiceInstance.api);

src/services/CourseService.ts

@@ -1,10 +1,11 @@
 import { AxiosInstance } from 'axios';
+import { ApiServiceInstance } from '.';
 import * as helpers from '@educt/helpers';
 import { IApiRespose, ICourse } from '@educt/interfaces';
-import { CreateCourseParamsType, FetchCoursesParams, UpdateCourseParamsType } from '@educt/types';
 import { CourseStatusEnum } from '@educt/enums';
+import { CreateCourseParamsType, FetchCoursesParams, UpdateCourseParamsType } from '@educt/types';
 
-export class CourseService {
+class CourseService {
   public api: AxiosInstance;
 
   constructor(api: AxiosInstance) {
@@ -96,3 +97,5 @@ export class CourseService {
     return result.data;
   }
 }
+
+export const CourseServiceInstance = new CourseService(ApiServiceInstance.api);

src/services/LessonService.ts

@@ -1,7 +1,8 @@
-import { IApiRespose, ILesson } from '@educt/interfaces';
 import { AxiosInstance } from 'axios';
+import { IApiRespose, ILesson } from '@educt/interfaces';
+import { ApiServiceInstance } from './ApiService';
 
-export default class LessonService {
+class LessonService {
   public api: AxiosInstance;
 
   constructor(api: AxiosInstance) {
@@ -32,3 +33,5 @@ export default class LessonService {
     return result.data;
   }
 }
+
+export const LessonServiceInstance = new LessonService(ApiServiceInstance.api);

src/services/UserService.ts

@@ -1,9 +1,10 @@
 import { AxiosInstance } from 'axios';
-import { IApiRespose, IMe, IUser, IUserContacts } from '@educt/interfaces';
+import { ApiServiceInstance } from '.';
 import * as helpers from '@educt/helpers';
+import { IApiRespose, IMe, IUser, IUserContacts } from '@educt/interfaces';
 import { CreateUserParamsType, FetchUsersParamsType, UpdateUserParamsType } from '@educt/types';
 
-export default class UserService {
+class UserService {
   public api: AxiosInstance;
 
   constructor(api: AxiosInstance) {
@@ -135,3 +136,5 @@ export default class UserService {
     return result.data;
   }
 }
+
+export const UserServiceInstance = new UserService(ApiServiceInstance.api);

src/services/index.ts

@@ -0,0 +1,15 @@
+import { ApiServiceInstance } from './ApiService';
+import { AuthServiceInstance } from './AuthService';
+import { CategoryServiceInstance } from './CategoryService';
+import { CourseServiceInstance } from './CourseService';
+import { LessonServiceInstance } from './LessonService';
+import { UserServiceInstance } from './UserService';
+
+export {
+  ApiServiceInstance,
+  AuthServiceInstance,
+  CategoryServiceInstance,
+  CourseServiceInstance,
+  LessonServiceInstance,
+  UserServiceInstance,
+};

src/stores/AuthStore.ts

@@ -1,11 +1,10 @@
 import { makeAutoObservable } from 'mobx';
-import { AxiosInstance } from 'axios';
 import Cookies from 'js-cookie';
 
 /**
  * Services
  */
-import AuthService from '@educt/services/AuthService';
+import { AuthServiceInstance } from '@educt/services';
 
 /**
  * Stores
@@ -15,13 +14,10 @@ import RootStore from './RootStore';
 export default class AuthStore {
   public root: RootStore;
 
-  public authService: AuthService;
-
   public isLoggedIn: boolean = !!Cookies.get('logged_in');
 
-  constructor(root: RootStore, api: AxiosInstance) {
+  constructor(root: RootStore) {
     this.root = root;
-    this.authService = new AuthService(api);
     makeAutoObservable(this);
   }
 
@@ -31,7 +27,7 @@ export default class AuthStore {
 
   public async login(login: string, password: string) {
     try {
-      const result = await this.authService.requestLogin(login, password);
+      const result = await AuthServiceInstance.requestLogin(login, password);
 
       this.setIsLoggedIn(true);
       Cookies.set('logged_in', 'true');
@@ -44,7 +40,7 @@ export default class AuthStore {
 
   public async logout() {
     try {
-      const result = await this.authService.requestLogout();
+      const result = await AuthServiceInstance.requestLogout();
 
       this.setIsLoggedIn(false);
       this.root.userStore.reset();

src/stores/CategoryStore.ts

@@ -1,4 +1,3 @@
-import { AxiosInstance } from 'axios';
 import { makeAutoObservable, runInAction } from 'mobx';
 
 /**
@@ -9,7 +8,7 @@ import { ICategory } from '@educt/interfaces';
 /**
  * Services
  */
-import CategoryService from '@educt/services/CategoryService';
+import { CategoryServiceInstance } from '@educt/services';
 
 /**
  * Stores
@@ -19,15 +18,12 @@ import RootStore from './RootStore';
 export default class CategoryStore {
   public root: RootStore;
 
-  public categoryService: CategoryService;
-
   public categories: ICategory[] | null = null;
 
   public isLoading: boolean = false;
 
-  constructor(root: RootStore, api: AxiosInstance) {
+  constructor(root: RootStore) {
     this.root = root;
-    this.categoryService = new CategoryService(api);
     makeAutoObservable(this);
   }
 
@@ -38,7 +34,7 @@ export default class CategoryStore {
   public async loadCategories() {
     try {
       this.setLoading(true);
-      const result = await this.categoryService.fetchAll();
+      const result = await CategoryServiceInstance.fetchAll();
 
       runInAction(() => {
         this.categories = result.data;

src/stores/CourseStore.ts

@@ -1,4 +1,3 @@
-import { AxiosInstance } from 'axios';
 import { makeAutoObservable, runInAction } from 'mobx';
 
 /**
@@ -6,30 +5,27 @@ import { makeAutoObservable, runInAction } from 'mobx';
  */
 import { FetchCoursesParams } from '@educt/types';
 import { ICourse } from '@educt/interfaces';
+import { CourseStatusEnum } from '@educt/enums';
 
 /**
  * Services
  */
-import { CourseService } from '@educt/services/CourseService';
+import { CourseServiceInstance } from '@educt/services';
 
 /**
  * Stores
  */
 import RootStore from './RootStore';
-import { CourseStatusEnum } from '@educt/enums';
 
 export default class CourseStore {
   public root: RootStore;
 
-  public courseService: CourseService;
-
   public courses: Omit<ICourse, 'teacher' | 'students' | 'lessons'>[] | null = null;
 
   public isLoading: boolean = false;
 
-  constructor(root: RootStore, api: AxiosInstance) {
+  constructor(root: RootStore) {
     this.root = root;
-    this.courseService = new CourseService(api);
     makeAutoObservable(this);
   }
 
@@ -40,7 +36,7 @@ export default class CourseStore {
   public async loadCourses(params?: FetchCoursesParams) {
     try {
       this.setLoading(true);
-      const result = await this.courseService.fetchAll(params);
+      const result = await CourseServiceInstance.fetchAll(params);
 
       /**
        * Load courses in store
@@ -59,7 +55,7 @@ export default class CourseStore {
 
   public async deleteCourse(id: string) {
     try {
-      const result = await this.courseService.delete(id);
+      const result = await CourseServiceInstance.delete(id);
 
       /**
        * Remove deleted course form store
@@ -97,7 +93,7 @@ export default class CourseStore {
       /**
        * Make request on update course status
        */
-      const result = await this.courseService.setStatus(id, status);
+      const result = await CourseServiceInstance.setStatus(id, status);
       return result;
     } catch (error: any) {
       /**

src/stores/PageStore.ts

@@ -1,4 +1,3 @@
-import { AxiosInstance } from 'axios';
 import { makeAutoObservable } from 'mobx';
 import EditCourseStore from './pages/EditCourseStore';
 import RootStore from './RootStore';
@@ -8,13 +7,13 @@ export default class PageStore {
 
   public editCourseStore: EditCourseStore;
 
-  constructor(root: RootStore, api: AxiosInstance) {
+  constructor(root: RootStore) {
     this.root = root;
 
     /**
      * Pages
      */
-    this.editCourseStore = new EditCourseStore(this, api);
+    this.editCourseStore = new EditCourseStore(this);
 
     makeAutoObservable(this);
   }

src/stores/RootStore.ts

@@ -1,11 +1,5 @@
-import apiConfig from '@educt/api.config';
 import { makeAutoObservable } from 'mobx';
 
-/**
- * Services
- */
-import ApiService from '@educt/services/ApiService';
-
 /**
  * Stores
  */
@@ -14,7 +8,6 @@ import UserStore from './UserStore';
 import UIStore from './UIStore';
 import CategoryStore from './CategoryStore';
 import CourseStore from './CourseStore';
-import LessonService from '@educt/services/LessonService';
 import PageStore from './PageStore';
 
 export default class RootStore {
@@ -30,27 +23,16 @@ export default class RootStore {
 
   public userStore: UserStore;
 
-  public apiService: ApiService;
-
-  public lessonService: LessonService;
-
   constructor() {
-    /**
-     * Services
-     */
-    // TODO add other services
-    this.apiService = new ApiService(this, apiConfig);
-    this.lessonService = new LessonService(this.apiService.api);
-
     /**
      * Stores
      */
-    this.pageStore = new PageStore(this, this.apiService.api);
-    this.courseStore = new CourseStore(this, this.apiService.api);
-    this.categoryStore = new CategoryStore(this, this.apiService.api);
+    this.authStore = new AuthStore(this);
+    this.categoryStore = new CategoryStore(this);
+    this.courseStore = new CourseStore(this);
+    this.pageStore = new PageStore(this);
     this.uiStore = new UIStore(this);
-    this.authStore = new AuthStore(this, this.apiService.api);
-    this.userStore = new UserStore(this, this.apiService.api);
+    this.userStore = new UserStore(this);
 
     makeAutoObservable(this);
   }

src/stores/UserStore.ts

@@ -1,4 +1,3 @@
-import { AxiosInstance } from 'axios';
 import { makeAutoObservable, runInAction } from 'mobx';
 import * as helpers from '@educt/helpers';
 
@@ -12,7 +11,7 @@ import { UserRoleEnum } from '@educt/enums';
 /**
  * Services
  */
-import UserService from '@educt/services/UserService';
+import { UserServiceInstance } from '@educt/services';
 
 /**
  * Stores
@@ -22,8 +21,6 @@ import RootStore from './RootStore';
 export default class UserStore {
   public root: RootStore;
 
-  public userService: UserService;
-
   public me: IMe | null = null;
 
   public users: IUser[] | null = null;
@@ -32,9 +29,8 @@ export default class UserStore {
 
   public isLoading: boolean = false;
 
-  constructor(root: RootStore, api: AxiosInstance) {
+  constructor(root: RootStore) {
     this.root = root;
-    this.userService = new UserService(api);
     makeAutoObservable(this);
   }
 
@@ -45,7 +41,7 @@ export default class UserStore {
   public async loadUsersData(params?: FetchUsersParamsType) {
     try {
       this.setLoading(true);
-      const result = await this.userService.fetchAll(params);
+      const result = await UserServiceInstance.fetchAll(params);
 
       runInAction(() => {
         this.users = result.data;
@@ -62,7 +58,7 @@ export default class UserStore {
 
   public async loadCurrentUserData() {
     try {
-      const result = await this.userService.fetchMe();
+      const result = await UserServiceInstance.fetchMe();
       const {
         data: { id, first_name, last_name, fullname, email, roles, contacts, courses },
       } = result;
@@ -91,7 +87,7 @@ export default class UserStore {
 
   public async createUser(data: CreateUserParamsType, paramsContext?: FetchUsersParamsType) {
     try {
-      const result = await this.userService.create(data);
+      const result = await UserServiceInstance.create(data);
 
       if (this.users !== null) {
         /**
@@ -108,7 +104,7 @@ export default class UserStore {
 
   public async updateUser(id: string, params: UpdateUserParamsType) {
     try {
-      const result = await this.userService.update(id, params);
+      const result = await UserServiceInstance.update(id, params);
 
       runInAction(() => {
         if (this.users !== null) {
@@ -134,7 +130,7 @@ export default class UserStore {
    */
   public async deleteUser(id: string, paramsContext?: FetchUsersParamsType) {
     try {
-      const result = await this.userService.delete(id);
+      const result = await UserServiceInstance.delete(id);
 
       if (this.users !== null) {
         /**
@@ -157,7 +153,7 @@ export default class UserStore {
    */
   public async updateCurrentUserContacts(data: IUserContacts) {
     try {
-      const result = await this.userService.updateContacts(data);
+      const result = await UserServiceInstance.updateContacts(data);
 
       runInAction(() => {
         if (this.me) {
@@ -180,7 +176,7 @@ export default class UserStore {
    */
   public async updateCurrentUserPassword(oldPassword: string, newPassword: string) {
     try {
-      const result = await this.userService.updatePassword(oldPassword, newPassword);
+      const result = await UserServiceInstance.updatePassword(oldPassword, newPassword);
       return result;
     } catch (error: any) {
       throw error;
@@ -195,7 +191,7 @@ export default class UserStore {
    */
   public async updateCurrentUserEmail(email: string) {
     try {
-      const result = await this.userService.updateEmail(email);
+      const result = await UserServiceInstance.updateEmail(email);
       return result;
     } catch (error: any) {
       throw error;
@@ -211,7 +207,7 @@ export default class UserStore {
    */
   public async updateCurrentUserEmailConfirm(email: string, confirmationCode: string) {
     try {
-      const result = await this.userService.updateEmailConfirm(email, confirmationCode);
+      const result = await UserServiceInstance.updateEmailConfirm(email, confirmationCode);
       runInAction(() => {
         if (this.me) {
           this.me.email = result.data.email;

src/stores/pages/EditCourseStore.ts

@@ -1,11 +1,10 @@
+import { makeAutoObservable, runInAction } from 'mobx';
 import * as helpers from '@educt/helpers';
 import { ICourse, ILesson } from '@educt/interfaces';
-import { CourseService } from '@educt/services/CourseService';
-import LessonService from '@educt/services/LessonService';
-import { AxiosInstance } from 'axios';
-import { makeAutoObservable, runInAction } from 'mobx';
 import PageStore from '../PageStore';
 
+import { CourseServiceInstance, LessonServiceInstance } from '@educt/services';
+
 export default class EditCourseStore {
   public pageStore: PageStore;
 
@@ -13,11 +12,8 @@ export default class EditCourseStore {
 
   public deletingLesson: ILesson | undefined;
 
-  private courseService: CourseService;
-
-  constructor(pageStore: PageStore, api: AxiosInstance) {
+  constructor(pageStore: PageStore) {
     this.pageStore = pageStore;
-    this.courseService = new CourseService(api);
 
     makeAutoObservable(this);
   }
@@ -30,7 +26,7 @@ export default class EditCourseStore {
    */
   public async loadCourseById(id: string) {
     try {
-      const result = await this.courseService.fetchById(id);
+      const result = await CourseServiceInstance.fetchById(id);
 
       runInAction(() => {
         this.course = result.data;
@@ -50,7 +46,7 @@ export default class EditCourseStore {
    */
   public async deleteLessonById(id: string) {
     try {
-      const result = await this.pageStore.root.lessonService.deleteLesson(id);
+      const result = await LessonServiceInstance.deleteLesson(id);
 
       runInAction(() => {
         if (this.course) {