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Big Data Management Systems course assignment: Meetings and chat application with Redis

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Redis-Assignment

Assignment for the course Big Data Management Systems of 4th year spring semester and specifically Redis

Assignment description

Firstly create by using any type of database:

  1. A database of users (userID, name, age, gender, email)
  2. A database of meetings (meetingID, title, description, isPublic, audience) with meeting instances (meetingID, orderID, fromdatetime, todatetime)
  3. A database of eventsLog (event_id, userID, event_type, timestamp)

Then create the following functions storing the data in a Redis Server:

  • Function: a meeting instance becomes active
  • Function: a user can join an active meeting instance – if allowed, his email is in audience*
  • Function: a user can leave a meeting*
  • Function: show meeting’s current participants
  • Function: show active meetings
  • Function: when a meeting ends, all participants leave*
  • Function: a user can post a chat message*
  • Function: show meeting’s chat messages in chronological order
  • Function: show for each active meeting when (timestamp) current participants joined
  • Function: show for an active meeting and a user his/her chat message

Note: A meeting has audience or it is public. Also, functions with a star in the end, must also insert an event in the database eventsLog.

Installation requirements

Install the necessary libraries using pip:

pip install tinydb, redis, datetime

Running Application

  1. Open the redis-server.exe window-server
  2. Run the command python main.py from cmd
  3. Choose from the displayed menu the corresponding function

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