KB

KB is a Go API that shows computer availability in the Kilburn Building at the University of Manchester

Using the API

To get the availability in the whole school:

GET /api/status

{
  "e-c07kilf1601.it.manchester.ac.uk": {
    "status": "free",
    "timestamp": "2000-01-01T00:00:00.000000000+01:00",
    "lab": "Tootil 1"
  },
  "e-c07kilf901.it.manchester.ac.uk": {
    "status": "used",
    "timestamp": "2000-01-01T00:00:00.000000000+01:00",
    "lab": "Tootil 0"
  },
  "e-c07kilf3101.it.manchester.ac.uk": {
    "status": "offline",
    "timestamp": "2000-01-01T00:00:00.000000000+01:00",
    "lab": "LF31"
  }
}

To get the availability in one lab:

GET /api/status/labs/:lab

{
  "e-c07kilf901.it.manchester.ac.uk": {
    "status": "free",
    "timestamp": "2000-01-01T00:00:00.000000000+01:00",
    "lab": "Tootil 0"
  },
  "e-c07kilf902.it.manchester.ac.uk": {
    "status": "free",
    "timestamp": "2000-01-01T00:00:00.000000000+01:00",
    "lab": "Tootil 0"
  },
  "e-c07kilf903.it.manchester.ac.uk": {
    "status": "used",
    "timestamp": "2000-01-01T00:00:00.000000000+01:00",
    "lab": "Tootil 0"
  }
}

To check if a particular machine is available:

GET /api/status/machines/:machine

{
  "status": "free",
  "timestamp": "2000-01-01T00:00:00.000000000+01:00",
  "lab": "Tootil 0"
}

Updating the state

The reporter feeds the data to the API via the /report/ endpoint:

POST /report/

{
  "e-c07kilf901.it.manchester.ac.uk": {
    "status": "free",
    "timestamp": "2000-01-01T00:00:00.000000000+01:00",
    "lab": "Tootil 0"
  },
  "e-c07kilf902.it.manchester.ac.uk": {
    "status": "free",
    "timestamp": "2000-01-01T00:00:00.000000000+01:00",
    "lab": "Tootil 0"
  },
  "e-c07kilf903.it.manchester.ac.uk": {
    "status": "used",
    "timestamp": "2000-01-01T00:00:00.000000000+01:00",
    "lab": "Tootil 0"
  }
}

Will return a 200 OK and the state will be updated

Building it

You need two components, one is the API which caches the status of the machines and returns the info (/pull), and the remote part which pushes the information from the network to the API (/push)

To build them you run:

go build -o out/pull pull/main.go
go build -o out/push push/main.go

To run the push, you do:

./out/push <path/to/logs>

To run the API, you do:

./out/pull