annajustynak/meeting_schedular_system.3

Meeting Scheduler

Meeting Scheduler is a basic version of HTTP JSON API written in Golang and works on the port 12345 by default.

Meeting Attributes

Meetings have the following Attributes.

• Id
• Title
• Participants
• Start Time
• End Time
• Creation Timestamp
  The format of the timestamp is RFC3339, eg: 2020-12-01T14:11:57+05:30
  
  

Participants have the following Attributes.

• Name
• Email
• RSVP (Yes/No/MayBe/Not Answered)

Supported Operations:

• Schedule a meeting
  A POST request using the URL '/meetings' which returns the meeting in JSON format
• Get a meeting using id
  A GET request using the URL '/meeting/<id here>' which returns the meeting in JSON format
• List all meetings within a time frame
  A GET request using the URL ‘/meetings?start=<start time here>&end=<end time here>’ which returns an array of meetings in JSON format that are within the time range
• List all meetings of a participant
  A GET request using the URL ‘/articles?participant=<email id>’ which returns an array of meetings in JSON format that have the participant

Other Features

• Support for pagination using limit and offset
• Thread Safe creation of meetings using Mutex Lock
• The response from the API is ordered by the start time of the meetings
• Multiple checks on the time of the meeting
• Meetings of a person at same time with RSVP Yes are not allowed

Benchmarks

• POST New Meetings:

Running tool: /usr/bin/go test -benchmem -run=^$ -bench ^(BenchmarkMaingetpost)$
goos: linux
goarch: amd64
BenchmarkMaingetpost-8   	    1206	    855918 ns/op	   17942 B/op	     131 allocs/op
PASS
ok  	_/home/arnav/prog/appointy/meeting-scheduler	2.109s

• GET meeting from ID:

Running tool: /usr/bin/go test -benchmem -run=^$ -bench ^(BenchmarkMaingetmeet)$
goos: linux
goarch: amd64
BenchmarkMaingetmeet-8   	    1309	    826992 ns/op	   16761 B/op	     119 allocs/op
PASS
ok  	_/home/arnav/prog/appointy/meeting-scheduler	2.160s

• GET participants meetings:

Running tool: /usr/bin/go test -benchmem -run=^$ -bench ^(BenchmarkMaingetparticipant)$
goos: linux
goarch: amd64
BenchmarkMaingetparticipant-8   	    1216	    862029 ns/op	   16787 B/op	     120 allocs/op
PASS
ok  	_/home/arnav/prog/appointy/meeting-scheduler	2.152s

• GET meeting during time

Running tool: /usr/bin/go test -benchmem -run=^$ -bench ^(BenchmarkMaingettime)$
goos: linux
goarch: amd64
BenchmarkMaingettime-8   	    1202	    964725 ns/op	   16820 B/op	     120 allocs/op
PASS
ok  	_/home/arnav/prog/appointy/meeting-scheduler	2.189s

Sample Responses

• GET participants meetings

curl "http://localhost:12345/articles/[email protected]&offset=1&limit=1" | json_pp
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   261  100   261    0     0   254k      0 --:--:-- --:--:-- --:--:--  254k
[
   {
      "_id" : "5f4e3d6ce7a896b6576a04bb",
      "creationtime" : "2020-09-01T17:54:12+05:30",
      "endtime" : "2021-09-01T10:52:12+05:30",
      "participants" : [
         {
            "email" : "[email protected]",
            "name" : "Arnav Dixit",
            "rsvp" : "Yes"
         }
      ],
      "starttime" : "2021-09-01T09:52:12+05:30",
      "title" : "Title"
   }
]

• GET meeting from ID

curl "http://localhost:12345/meeting/5f4e410c724c1867e9755e3b" | json_pp
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   319  100   319    0     0   155k      0 --:--:-- --:--:-- --:--:--  155k
{
   "_id" : "5f4e410c724c1867e9755e3b",
   "creationtime" : "2020-09-01T18:09:40+05:30",
   "endtime" : "2020-19-01T15:11:57+05:30",
   "participants" : [
      {
         "email" : "[email protected]",
         "name" : "Arnavvvvvvvvvv",
         "rsvp" : "Yes"
      },
      {
         "email" : "[email protected]",
         "name" : "Sudhanshu",
         "rsvp" : "No"
      }
   ],
   "starttime" : "2020-12-01T14:11:57+05:30",
   "title" : "The Meet"
}