Outline
mongod
is the primary daemon process for the MongoDB system.
npm start
Starts the node server and executes
index.jsof the project.Mainly performs three tasks in following order:
- 1.MongoDB connection: Mongoose makes a connection to mongoDB.
- 2.Socket connection: Starts the socket server (/config/socket.js)
- 3.Node server: Starts the node server and configure port (/config/express.js)
All the mongoDB models or schemas are defined under
/server/models.Socket-server performs following functionalities :
- 1.Starts the socket server
- 2.Once when client is connected, it checks for authentication
- 3.If successfully authenticated, Socket Handler is called to handle different socket scenarios (/server/socketHanlder/index.js)
- messageHandler : Handles all the chat events between users (message-handler.js)
Express JS contains all the configuration details related to node server. It performs the following tasks:
- 1.Create and start server
- 2.Add different middleware namely:
- 3.
- bodyParser: Parse body params and attache them to req.body
- cookieParser: Parse Cookie header and populate req.cookies with an object added as key by the cookie names.
- Compress: Helps in decreasing the size of the response body and improve the speed of the API calls.
- Passport: Helps to authenticate different API call.
- Helmet: Helps to protect the application from different attacks such as cross-site scripting (XSS), script injection.
- Cors: It helps in connecting the different domain to the application i.e enable cross-origin resource sharing.
- APIError: Handles any other error that occurred inside of an API calls such as API not found, internal server error, parameter validation error.
- API route: Manage various other routes of the application (/server/routes/index.js)
This module lets you authenticate endpoints using a JSON web token and passport-jwt. A passport middleware is added to all the routes and socket which will check for authorized token. We can also change the strategy of the passport in the passport-config.jsfile.
It handles the different routes of the application, namely:
- users: This route contains different routes related to the user such as registration of the new user, fetching user details, etc.
- auth: Manages the login, checkUser and logout route. This route handles the authentication of the user by generating the token.
- apartment: Handles the user apartment related route such as getting the apartments of the user, updating apartment details etc.
- messages: handles the chat related routes such as userMessages, loadMore messages etc.
Following are the controllers defined for the above-mentioned routes:
- User Controller Performs user related functions, such as:
-
- Create new user
- Get user details
- Update user-details
- GetfavouriteUsers
- Auth Controller Performs user authentication tasks: Login ,LogOut, checkUser
- Apartment Controller Defines apartment related functions such as getApartments, update apartment details etc.
- Messages Controller: Defines users chat related functions such as fetch messages, loadMoreMessages, fetch specific user messages etc.
Last modified 3yr ago