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Professional Chat Application Development Project Help Using Java

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Developing a Two-module Application

Chatting applications are booming in the market as we can see how fast the Signal app gets its pace, similarly, we are planning to develop an application for telecommunication or chatting. This idea will reduce the distance between people and they can just communicate with each other by performing simple steps. This application will contain mainly two modules one is the user module (Application) another one is the admin module (web-based). Users can just create an account using the phone number, our chat application will be end to end secured.

Mission Statement

Our mission is to provide a seamless, secure, and user-friendly communication medium to our end users. In terms of geographical boundaries, chatting is a way of using technology to put people and ideas together. The software has been available for years, but the acceptance has been

Creating a Server Chat Application

- This project is intended to create a server chat application and to allow users to chat with each other.
- This application will be end to end secured which will attract the user
- To develop an application where user can share their media securely
- To create unlimited groups, unlimited broadcast, unlimited chats
- To create a free and safe chat application without any ads or subscription
- To reduce the barrier between people who stay and work away from their homes.
- To create an instant messaging solution to allow users to communicate with each other seamlessly. The project should be very simple to use so that even a beginner person can use it.

Major user view

The following are the major user views:
- Login page
- Create an account page
- List chat page
- View chat detail page
- View contact
- Create a group page
- Create a secret chat
- View members of the group
- View group chat
- Call history
- Invite friends
- Create broadcast message
- Profile
- Settings

ER Diagram

ER Diagram

Use cases
Use case 1: Login
Actor: User
Steps :
- User clicks on login and the user will be asked to enter the phone number
- Once the phone number is entered the user will be asked to enter the OTP received in the phone number
- On success users will be logged in.
User case 2: Login failed due to the wrong OTP
Actor: User
Steps:
- If the user entered the number and typed in the wrong OTP then the user will not be allowed into the system
Use case 3: edit/delete/update added phone number
Actor: User
Steps:
- User will be able to edit the phone number entered
- User will be able to update the phone number
- User will be able to delete the phone number
User case 4: Signup
Actor: User
Steps:
- User can create an account in the platform using full name, phone number
- User need to enter the OTP received in the phone number to validate
- Once the user successfully entered the OTP the system will validate it
- Once the user is created, the user will be assigned a use rid
User case 5: Wrong phone number
Actor: User
Steps:
- While creating an account if the user enters a wrong phone number an alert will pop up saying “Please check the phone number”
Use case 6: Chat
Actor: User
Steps:
- User will be able to view the list of chat
- User will be able to view the details of the chat
- In the backend, the chat will contain chat id, user-id
Use case 7: Send image in the chat
Actor: User
Steps:
- User will be able to attach images to the chat
- User will be able to view the full screen of the image
Use case 8: update/delete
Actor: User
Steps:
- User will be able to edit the message send
- User will be able to delete the message
Use case 9: Do audio call
Actor: User
Steps:
- User can perform audio calls with anyone on the platform
- The other user can accept or reject the audio call
Use case 10: Video call
Actor: User
Steps:
- User can perform video call with anyone in the platform
- The other user can accept or reject the video call
Use case 11: Share emoji
Actor: User
Steps:
- User can share emoji in the chat/group chat/broadcast list
- User can delete the emoji send
Use case 12: Search for chat history
Actor: User
Steps:
- Use can search for the user in the chat history
- User can delete the chat history
- User can send new messages on the chat
Use case 13: Contacts
Actor: User
Steps:
- Parallel to the chat option there will be another option contact
- Users can search for contact and chat will them
- User can add a new contact and chat with them
- Provision to delete a contact
Use case 14: Create a group chat
Actor: User
Steps:
- There will be an icon to create a new group chat
- On clicking that user will be asked to enter the group name
- User can add members to the group
- Once a group chat is created group chat id will be created in the backend
Use case 15: Update group chat
Actor: User
Steps:
- User can edit the name of the group chat
- User can add members to the group chat
- User can remove members from group chat
Use case 16: Delete group chat
Actor: User
Steps:
- There will be an option to delete the group chat
- Once the chat is deleted all the members will be removed
- No one can communicate in the group chat once deleted
Use case 17: Do audio call-in group chat
Actor: User
Steps:
- User can perform audio calls in the group chat and members of the group chat can join the call
- The other users can accept or reject the audio call
Use case 18: Video call in group chat
Actor: User
Steps:
- User can perform video calls in the group chat and members of the group can join the call
- The other users can accept or reject the video call
Use case 19: Share emoji
Actor: User
Steps:
- Users can share emojis in the group chat
- User can delete the emoji send
- The other users in the group chat can view the emoji
Use case 20: Create a broadcast list
Actor: user
Steps:
- User can create a broadcast list with names and users
- The broadcast will be a one-way group communication in which you can send out bulk messages
- Once a broadcast list is created a broadcast ID will be created
Use case 21: Send message in a broadcast
Actor: User
Steps:
- User can send messages in the broadcast list
- Once the message is sent all the users in that list will receive that message
- The receiver can see the message as a normal one to one chat message
Use case 22: Delete a broadcast list
Actor: User
Steps:
- User can delete the broadcast list
- Once delete the user will not be able to see the message send in the broadcast list
Use case 23: Send emojis in the broadcast list
Actor: User
Steps:
- User can add emojis to the broadcast list
- User can remove the emoji
Use case 24: Invite another user
Actor: User
Step:
- User can invite other members into the group by sharing the invite link
- The inviter will receive the link and can download the app.
- Once an invite is initiated in backed an invite id will be created
Use case 25: Invite a user by sharing the link to social media
Actor: User
Steps:
- Users can invite other users by sharing the invite link via WhatsApp, Facebook, telegram, and other social media.
- The invited user can download and join the application using that link
Use case 26: view other user profile
Actor: User
Steps:
- The current user can view other user profiles from chat
- User can see the information which is shared in public
Use case 27: View profile info
Actor: User
Steps:
- In the top right corner there will be a profile info icon, the user can click on that and visit the profile
- User can view all the profile information saved
Use case 28: Edit Phone number
Actor: User
Steps:
- User can see the current phone number added
- User can edit the phone number and add a new one
- New OTP will be sent to the customer phone number and need to verify that OTP
Use case 29: Add a new phone number
Actor: User
Steps:
- Users can add a new phone number by deleting the current one.
- New OTP will be sent to the customer phone number and need to verify that OTP
Use case 30: Edit profile name
Actor: User
Steps:
- From the profile user can edit the profile name added during the signup
- Once the profile name is edited it will be updated in the database
- Once the profile name is edited all the other users will be able to see the new name only
Use case 31: Add a profile picture
Actor: User
Steps:
- User can add a new profile picture
- User can add a profile picture from the gallery or take a new photo
- Once added all the other users can view the new profile picture when they visit your profile
Use case 32: Edit profile picture
Actor: User
Steps:
- User can edit the profile picture and add a new one
- User can add a new profile picture from the gallery or take a new photo
- Once added all the other users can view the new profile picture when they visit your profile
Use case 33: Remove profile picture
Actor: User
Steps:
- User can remove the current profile picture
- Once the current profile picture is removed a dummy image will be placed and all the other users can see the dummy image
Use case 34: Update all profile info
Actor: User
Steps:
- Once all the details are added the user can update the profile and all the changes will be reflected
- The changes will be stored in the Database
Use case 35: Logout
Actor: User
Steps:
- In the profile bottom there will be a logout option
- On clicking that user will be redirected to the login page

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