#SmartHome Inc.

Code-test for undisclosed company

Information about the test

• I was able to create endpoints for creating lightbulbs and schedules
• I've created an interval cycle that lives besides the REST server to check if it should turn on lights, I didn't have enough time to implement turning off the lights.
• Unfortunately I did not implement any unit tests due to short amount of time and I've never implemented any integration tests for MongoDB and almost all functionality is required to have an active connection so if I we're to add unittests I'd probably check if I could extract functionality to testable components/functions.

Running

Database

I've used MongoDB as a DB so either an local instance is required or I've provided a docker compose file which could be run with docker compose up

Application

After the database is up and running cargo run can be run to start the application.

Structure

• service service module that containts logic to connecting to the database
• routes contains routing logic for the API
• models
  • storage module which contains a generic trait to be implemented for generic MongoDB operations.
  • scheduler module for handling the scheduling cycles (when to turn off and on lightbulbs)
  • lightbulb modules for handling storing and transforming data related to lightbulbs
  • schedule modules for handling storing and transforming data related to schedules

Example API requests

Add lightbulb

curl --request POST \
  --url http://127.0.0.1:8000/lightbulb \
  --header 'Content-Type: application/json' \
  --data '{
	"active": "off"
}'

List lightbulbs

curl --request GET \
  --url http://127.0.0.1:8000/lightbulb \
  --header 'Content-Type: application/json'

Add schema

We can either specify lightbulbs directly or update a schema later if needed, in this example I'll specify the lightbulb returned from the above "Add lightbulb"

curl --request POST \
  --url http://127.0.0.1:8000/schedule \
  --header 'Content-Type: application/json' \
  --data '{
	"repeating": "daily",
	"onTime": {
		"hour": 14,
		"minute": 0
	},
	"offTime": {
		"hour": 16,
		"minute": 0
	},
	"lightbulbs": [
		{
			"_id": "643cf43840dc32b6098a6f50",
			"active": "off"
		}
	]
}'

List schedules

curl --request GET \
  --url http://127.0.0.1:8000/schedule \
  --header 'Content-Type: application/json'

Update schedule

curl --request PUT \
  --url http://127.0.0.1:8000/schedule/643ce4c18c6f5dc3a5c06e64 \
  --header 'Content-Type: application/json' \
  --data '{
	"_id": "643ce4c18c6f5dc3a5c06e64",
	"lightbulbs": [
		{
			"_id": "6438626236678b4db80c8623",
			"active": "off"
		}
	],
	"repeating": "daily",
	"weekDays": null,
	"active": "on",
	"onTime": {
		"hour": 8,
		"minute": 45
	},
	"offTime": {
		"hour": 8,
		"minute": 46
	}
}'