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A fully functional Online Scheduler web application deployed on AWS

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Online Scheduler Web Application

This Maven, cloud-based project is an implementation of a web application built-from-scratch, allowing users to schedule meetings with each other as needed. The project (followed the Model-View-Controller pattern) is deployed on AWS, using its Serverless Computing, which involves AWS IAM, AWS S3, AWS RDS, AWS Lambda, AWS API Gateway.

Use Cases

Organizer Features

  • Create a new meeting schedule (with its own user-friendly name, such as “Advising Schedule”) with a fixed timeslot duration (of 10,15,20,30, or 60 minutes) that is active from a given start date up until given ending date. For each day there is a daily start hour (such as 9:00 AM or 12:00 PM) and there is a daily end hour (such as 5:00 PM or 8:00 PM). No meeting can be schedule before the start hour; no meeting can be scheduled at or later than the end hour. Upon successful creation of a meeting schedule, the organizer is given a “secret code” that will be used to authenticate all future edit/delete requests.
  • Close/Open an individual time slot on a specific day (i.e., 9:30 – 9:45 on 14-Feb-2018)
  • Close/Open all time slots at a given time (i.e., 9:15 – 9:30 on any day)
  • Close/Open all time slots on a given day (i.e., all timeslots on 12-Feb-2018)
  • Cancel any individual meeting at any time
  • Review weekly schedule of meetings for a given calendar week (i.e., above is the result for the week of 12-Feb-2018) to see what meetings have been scheduled
  • Once a meeting schedule is created, the organizer must tell participants about the scheduled meeting so they can start to register for meetings
  • Extend the ending date of a meeting schedule to a future date
  • Extend the starting date of a meeting schedule to an earlier date
  • Delete a meeting schedule once it no longer is useful. Note that organizers can only delete meeting schedules that they had previously created

Participant Features

  • Review weekly schedule of meetings for a given meeting schedule, based on information from an organizer
  • Create a meeting in a given open timeslot in a meeting schedule. For each such meeting, the participant can provide a string that will be recorded with the timeslot. Typically this would be just a user name, but it could also be an email address. Upon the successful creation of a meeting, the participant is given a “secret code” that will be used to authenticate all future edit/delete requests
  • Cancel a previously scheduled meeting; this must be restricted so participants can only cancel a meeting that they had previously created
  • Search for a list of open time slots (filtered by Month, Year, Day-Of-Week, Day-Of-Month, or Timeslot). These individual search filters can be combined to reduce the search results. Within the search results, the participant can simply create a meeting from one of the returned timeslots

SysAdmin Features

  • Retrieve a list of meeting schedules more than N days old and delete them from the system
  • Retrieve a list of meeting schedules created in the past N hours

UML Diagram

UML Diagram for all Entities

API design with Swagger

We designed our APIs on SwaggerHub. Here is the link to our APIs: API

AWS Deployment

  1. Create IAM users with admin access for each team member.
  2. Create S3 Bucket and upload all static files
  3. Setup a MySQL database on AWS RDS service. Uses MySQL Workbench to ssh to the server, and create tables according to our defined schema.
  4. Develop, test, and upload Java files for each Lambda functions to AWS Lambda platform.
  5. Setup and deploy AWS API Gateway

Future Development

Integrates AWS Cognito into the application for better authentication.

Authors

This project is designed and implemented by a team of WPI students, including: Dung (Kevin) Nguyen, Ryan Johnson, Minh Pham, Nicholas Alescio. The project is guided and supervised by professor George Heineman (WPI).

License

This project is under MIT License.

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