This repository contains the API and UI containers for #HackWithIX

To run this API directly on your laptop:

• install node.js 6.9 (npm is a part of that)
• clone the repository
• change directory to the repository root, then:

cd api
npm install
node server.js

To run the UI directly on your laptop:

• install node.js 6.x (npm is a part of that)

cd ui
npm install
node server.js

Pro tips:

• Download React Dev Tools
• Download a JSON viewing chrome extension

(For those interested) - To run this API inside a Docker container:

• install docker and docker-compose
• clone this repository
• change directory to the repository root, then:

docker-compose pull
docker-compose up -d

Once running, to make requests to this server, use localhost:8000 as your FQDN.

Examples using curl (you could type these URLs in your browser too).

curl "http://localhost:8000/"
curl "http://localhost:8000/servers"
curl "http://localhost:8000/performance?dc=NA&id=NA0002"
curl "http://localhost:8000/impressions?dc=NA"

Routes available:

GET /

• Hello world

GET /servers

• Returns a list of servers
• Response contains two fields, a "message" field containing a string and a "data" field containing an array.
• Each member of the "data" field array contains the following fields:
• "dc": A string containing the data centre the server is located in
• "id": A string containing the unique ID of the server
• "online": A number containing the UTC time at which the server was first onlined
• "status":
• "GREEN" if the server is functioning normally
• "YELLOW" if the server is experiencing minor problems
• "ORANGE" if the server is experiencing significant problems
• "RED" if the server is experiencing critical problems
• "GREY" if the server is offline

Example response:

{
  "message": "OK",
  "data": [
    {
      "dc":"NA",
      "id":"NA0001",
      "online":1427745960000,
      "status":"GREEN"
    },
    {
      "dc":"NA",
      "id":"NA0002",
      "online":1427747460000,
      "status":"GREEN"
    },
    {
      "dc":"EU",
      "id":"EU0004",
      "online":1455361020000,
      "status":"ORANGE"
    }
  ]
}

GET /impressions

• Return impressions and spend details for a data centre
• Parameters:
• dc: required, two upper case characters from: optional, number corresponding to the Javascript date from which to retrive data
• to: optional, number corresponding to the Javascript date up to which to retrieve data
• Response contains two fields, a "message" field containing a string and a "data" field containing an array.
• The "data" field array contains server performance measurements over 10-minute time slices.
• Each member of the "data" field array contains the following fields:
• timestamp: the UTC time when the 10-minute measurement slice ended
• platform: what type of device/application the ad was served to (can be "desktop", "mobile" or "app")
• format: what type of ad was served (can be "video" or "banner")
• impressions: the number of impressions served in the timeslice
• spend: the total cpm spend on this platform and format during the timeslice

Example response:

{
  "message": "OK",
  "data": [
    {
      "timestamp":1478302800000,
      "platform":"app",
      "format":"video",
      "impressions":3832,
      "spend":76592.70706271428
    },
    {
      "timestamp":1478302800000,
      "platform":"app",
      "format":"banner",
      "impressions":10724,
      "spend":61691.60489606392
    }
  ]
}

GET /performance

• Return performance details for a data centre and or/server
• Parameters
• dc: required, two upper case characters
• server: required, two upper case characters followed by four digits, or "ALL" for an aggregate for all servers in a data centre
• from: optional, number corresponding to the Javascript date from which to retrive data
• to: optional, number corresponding to the Javascript date up to which to retrieve data
• Response contains two fields, a "message" field containing a string and a "data" field containing an array.
• The "data" field array contains server performance measurements over 10-minute time slices.
• Each member of the "data" field array contains the following fields:
• timestamp: the UTC time when the 10-minute measurement slice ended
• requests: the number of requests serviced by the server in this 10-minute period
• timing: an array with four members containing performance buckets for server responses:
• number of responses that took under 0.01s to serve,
• number of responses that took under 0.01-0.1s to serve,
• number of responses that took under 0.1-1s to serve,
• number of responses that took 1s or more to serve
• mean: a number containing the mean response time for all requests in this time period
• lag: delay in milliseconds between the time slice ending and performance data arriving at the monitoring server
• warns: number of warning messages generated by the server during the time slice

Example response:

{
  "message": "OK",
  "data": [
    {
      "timestamp":1477639800000,
      "requests":83231,
      "timing":[76068,4665,2175,323],
      "mean":0.02414521750382912,
      "lag":12224,
      "warns":23
    },
    {
      "timestamp":1477640400000,
      "requests":79976,
      "timing":[75635,3586,685,70],
      "mean":0.026952236984808437,
      "lag":12233,
      "warns":16
    }
  ]
}

Note:

• All numeric timestamps are in UTC and measured in milliseconds from the epoch.
• To convert from a timestamp to a Javascript Date object: new Date(timestamp);