A REST service to deliver tiny urls, using a Redis store for persistence.
When storing urls to the REST service, the following principles have been applied:
- short urls have just one long url
- short urls are permanently stored and persisted using a sqlite database
- short urls are unique from one another
- short urls are not easily discoverable; low probability of finding urls based in incrementing urls
When retrieving information from the REST service:
- the service will send a standard redirect to the longurl
- the service will send a response within 10ms
- the service keeps track of such events
- the service can show hits per shorturl per minute/24h/week/alltime
Clients can store new urls using a simple POST. The service will get the next available id from the Redis store and use that for storing the url. This id will be returned using base32(id).
Using docker:
docker build -t shortner:1.0 .
Using docker to first start Redis:
docker run --rm -it -v /tmp/redis:/data -p 6379:6379 redis:3.2.8
Launch the shortner:
docker run --rm -it -e LOG_LEVEL=INFO -e REDIS_HOST=172.17.0.2 -v /tmp:/work -p 8080:8080 shortner:1.0
Adding a new url to the service:
curl -d '{"url": "https://google.com/?foobar"}' -H 'content-type: application/json' http://localhost:8080/add
Response:
{
"result": "added",
"shorturlid": "a",
"url": "https://google.com/?foobar"
}
Using the short url to redirect to the long url:
curl localhost:8080/u/a
Response:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>Redirecting...</title>
<h1>Redirecting...</h1>
<p>You should be redirected automatically to target URL: <a href="https://google.com/?foobar">https://google.com/?foobar</a>. If not click the link.
[ ] Implement something like Swagger